Nervous System Manipulation by EM Fields from
Abstract: Physiological effects have been observed in a human subject in
response to stimulation of the skin with weak electromagnetic fields
that are pulsed with certain frequencies near 1/2 Hz or 2.4 Hz, such as
to excite a sensory resonance.
Many computer monitors and TV tubes, when
displaying pulsed images, emit pulsed electromagnetic fields of
sufficient amplitudes to cause such excitation. It is therefore possible
to manipulate the nervous system of a subject by pulsing images
displayed on a nearby computer monitor or TV set.
For the latter, the image pulsing may be
embedded in the program material, or it may be overlaid by modulating a
video stream, either as an RF signal or as a video signal. The image
displayed on a computer monitor may be pulsed effectively by a simple
computer program. For certain monitors, pulsed electromagnetic fields
capable of exciting sensory resonances in nearby subjects may be
generated even as the displayed images are pulsed with subliminal
USP # 6,488,617 (December 3, 2002)
Method and Device for Producing a Desired
Brain State Katz, Bruce
Abstract: A method and device for the production of a desired brain
state in an individual contain means for monitoring and analyzing the
brain state while a set of one or more magnets produce fields that alter
this state. A computational system alters various parameters of the
magnetic fields in order to close the gap between the actual and desired
brain state. This feedback process operates continuously until the gap
is minimized and/or removed.
USP # 6,487,531 (November 26, 2002)
Signal Injection Coupling into the Human
Abstract: A means and method are provided for enhancing or replacing the
natural excitation of the human vocal tract by artificial excitation
means, wherein the artificially created acoustics present additional
spectral, temporal, or phase data useful for,
enhancing the machine recognition
robustness of audible speech or
enabling more robust
machine-recognition of relatively inaudible mouthed or whispered
The artificial excitation
may be arranged to be audible or
may be designed to be
non-interfering with another user's similar means,
may be used in one or both of a
vocal content-enhancement mode or a complimentary vocal
tract-probing mode, and/or
may be used for the recognition of
audible or inaudible continuous speech or isolated spoken
USP # 6,430,443 (August 6, 2002)
Method and Apparatus for Treating Auditory
Abstract: Stimulating one or more vestibulo-cochlear nerves or cochlea
or cochlear regions will treat, prevent and control auditory
USP # 6,426,919 (July 30, 2002)
Portable and Hand-Held Device for Making
Humanly Audible Sounds...
Abstract: A portable and hand-held device for making humanly audible
sounds responsive to the detecting of ultrasonic sounds. The device
includes a hand-held housing and circuitry that is contained in the
The circuitry includes a microphone that
receives the ultrasonic sound, a first low voltage audio power amplifier
that strengthens the signal from the microphone, a second low voltage
audio power amplifier that further strengthens the signal from the first
low voltage audio power amplifier, a 7-stage ripple carry binary counter
that lowers the frequency of the signal from the second low voltage
audio power amplifier so as to be humanly audible, a third low voltage
audio power amplifier that strengthens the signal from the 7-stage
ripple carry binary counter, and a speaker that generates a humanly
audible sound from the third low voltage audio power amplifier.
USP # 6,292,688 (September 18, 2001)
Method and Apparatus for Analyzing
Neurological Response to Emotion-Inducing Stimuli
Abstract: A method of determining the extent of the emotional response
of a test subject to stimuli having a time-varying visual content, for
example, an advertising presentation. The test subject is positioned to
observe the presentation for a given duration, and a path of
communication is established between the subject and a brain wave
The intensity component of each of at least
two different brain wave frequencies is measured during the exposure,
and each frequency is associated with a particular emotion. While the
subject views the presentation, periodic variations in the intensity
component of the brain waves of each of the particular frequencies
selected is measured.
The change rates in the intensity at regular
periods during the duration are also measured. The intensity change
rates are then used to construct a graph of plural coordinate points,
and these coordinate points graphically establish the composite
emotional reaction of the subject as the presentation continues.
USP # 6,258,022 (July 10,2001)
Abstract: Behavior modification of a human subject takes place under
hypnosis, when the subject is in a relaxed state. A machine plays back a
video or audio recording, during which the subject is instructed to
activate a device to create a perceptible stimulation which is linked,
through the hypnosis, with a visualization of enhanced or improved
After the hypnosis, the user can reactivate
the device at will, whenever the improved performance, such as an
improved sporting performance, is desired. This will again create the
perceptible stimulation and thus induce the required visualization.
USP # 6,239,705 (May 29,2001)
Intra-Oral Electronic Tracking Device
Abstract: An improved stealthy, non-surgical, biocompatible electronic
tracking device is provided in which a housing is placed intra-orally.
The housing contains micro circuitry. The micro circuitry comprises a
receiver, a passive mode to active mode activator, a signal decoder for
determining positional fix, a transmitter, an antenna, and a power
Optionally, an amplifier may be utilized to
boost signal strength. The power supply energizes the receiver. Upon
receiving a coded activating signal, the positional fix signal decoder
is energized, determining a positional fix. The transmitter subsequently
transmits through the antenna a position locating signal to be received
by a remote locator. In another embodiment of the present invention, the
micro circuitry comprises a receiver, a passive mode to active mode
activator, a transmitter, an antenna and a power supply.
Optionally, an amplifier may be utilized to
boost signal strength. The power supply energizes the receiver. Upon
receiving a coded activating signal, the transmitter is energized. The
transmitter subsequently transmits through the antenna a homing signal
to be received by a remote locator.
USP # 6,167,304 (December 26, 2000)
Pulse Variability in Electric Field
Manipulation of Nervous Systems
Abstract: Apparatus and method for manipulating the nervous system of a
subject by applying to the skin a pulsing external electric field which,
although too weak to cause classical nerve stimulation, modulates the
normal spontaneous spiking patterns of certain kinds of afferent nerves.
For certain pulse frequencies the electric field stimulation can excite
in the nervous system resonances with observable physiological
Pulse variability is introduced for the
purpose of thwarting habituation of the nervous system to the repetitive
stimulation, or to alleviate the need for precise tuning to a resonance
frequency, or to control pathological oscillatory neural activities such
as tremors or seizures. Pulse generators with stochastic and
deterministic pulse variability are disclosed, and the output of an
effective generator of the latter type is characterized.
USP # 6,135,944 (October 24, 2000)
Method of Inducing Harmonious States of
Bowman, Gerard D., et al.
Abstract: A method of inducing harmonious states of being using
vibrational stimuli, preferably sound, comprised of a multitude of
frequencies expressing a specific pattern of relationship. Two base
signals are modulated by a set of ratios to generate a plurality of
harmonics. The harmonics are combined to form a "fractal" arrangement.
USP # 6,122,322 (September 19, 2000)
Subliminal Message Protection
Abstract: The present invention relates to a method and to a system for
detecting a first context change between two frames. When a second
context change between a further two frames occurs within a
predetermined time interval, the frames accommodated within the two
context changes are defined as a subliminal message. An alarm is sent to
an observer upon detection of a subliminal message.
USP # 6,091,994 (July 18, 2000)
Pulsative Manipulation of Nervous Systems
Abstract: Method and apparatus for manipulating the nervous system by
imparting subliminal pulsative cooling to the subject's skin at a
frequency that is suitable for the excitation of a sensory resonance. At
present, two major sensory resonances are known, with frequencies near
1/2 Hz and 2.4 Hz. The 1/2 Hz sensory resonance causes relaxation,
sleepiness, ptosis of the eyelids, a tonic smile, a "knot" in the
stomach, or sexual excitement, depending on the precise frequency used.
The 2.4 Hz resonance causes the slowing of
certain cortical activities, and is characterized by a large increase of
the time needed to silently count backward from 100 to 60, with the eyes
closed. The invention can be used by the general public for inducing
relaxation, sleep, or sexual excitement, and clinically for the control
and perhaps a treatment of tremors, seizures, and autonomic system
disorders such as panic attacks.
Embodiments shown are a pulsed fan to impart
subliminal cooling pulses to the subject's skin, and a silent device
which induces periodically varying flow past the subject's skin, the
flow being induced by pulsative rising warm air plumes that are caused
by a thin resistive wire which is periodically heated by electric
USP # 6,081,744 (June 27, 2000)
Electric Fringe Field Generator for
Manipulating Nervous Systems
Abstract: Apparatus and method for manipulating the nervous system of a
subject through afferent nerves, modulated by externally applied weak
fluctuating electric fields, tuned to certain frequencies such as to
excite a resonance in neural circuits. Depending on the frequency
chosen, excitation of such resonances causes in a human subject
relaxation, sleepiness, sexual excitement, or the slowing of certain
The electric field used for stimulation of
the subject is induced by a pair of field electrodes charged to opposite
polarity and placed such that the subject is entirely outside the space
between the field electrodes. Such configuration allows for very compact
devices where the field electrodes and a battery-powered voltage
generator are contained in a small casing, such as a powder box. The
stimulation by the weak external electric field relies on frequency
modulation of spontaneous spiking patterns of afferent nerves.
The method and apparatus can be used by the
general public as an aid to relaxation, sleep, or arousal, and
clinically for the control and perhaps the treatment of tremors and
seizures, and disorders of the autonomic nervous system, such as panic
USP # 6,052,336 (April 18, 2000)
Apparatus and Method of Broadcasting
Audible Sound Using Ultrasonic Sound as a Carrier
Lowrey, Austin, III
Abstract: An ultrasonic sound source broadcasts an ultrasonic signal
which is amplitude and/or frequency modulated with an information input
signal originating from an information input source. If the signals are
amplitude modulated, a square root function of the information input
signal is produced prior to modulation. The modulated signal, which may
be amplified, is then broadcast via a projector unit, whereupon an
individual or group of individuals located in the broadcast region
detect the audible sound.
USP # 6,039,688 (March 21, 2000)
Therapeutic Behavior Modification Program,
Compliance Monitoring and Feedback System
Douglas, Peter, et al.
Abstract: A therapeutic behavior modification program, compliance
monitoring and feedback system includes a server-based relational
database and one or more microprocessors electronically coupled to the
server. The system enables development of a therapeutic behavior
modification program having a series of milestones for an individual to
achieve lifestyle changes necessary to maintain his or her health or
recover from ailments or medical procedures.
The program may be modified by a physician
or trained case advisor prior to implementation. The system monitors the
individual's compliance with the program by prompting the individual to
enter health-related data, correlating the individual's entered data
with the milestones in the behavior modification program and generating
compliance data indicative of the individual's progress toward
achievement of the program milestones. The system also includes an
integrated system of graphical system interfaces for motivating the
individual to comply with the program.
Through the interfaces, the individual can
access the database to review the compliance data and obtain health
information from a remote source such as selected sites on the Internet.
The system also provides an electronic
calendar integrated with the behavior modification program for signaling
the individual to take action pursuant to the behavior modification
program in which the calendar accesses the relational database and
integrates requirements of the program with the individual's daily
schedule, and an electronic journal for enabling the individual to enter
personal health-related information into the system on a regular basis.
In addition, the system includes an electronic meeting room for linking
the individual to a plurality of other individuals having related
behavior modification programs for facilitating group peer support
sessions for compliance with the program.
The system enables motivational media
presentations to be made to the individuals in the electronic meeting
room as part of the group support session to facilitate interactive
group discussion about the presentations. The entire system is designed
around a community of support motif including a graphical electronic
navigator operable by the individual to control the microprocessor for
accessing different parts of the system.
USP # 6,017,302 (January 25, 2000)
Subliminal Acoustic Manipulation of Nervous
Abstract: In human subjects, sensory resonances can be excited by
subliminal atmospheric acoustic pulses that are tuned to the resonance
frequency. The 1/2 Hz sensory resonance affects the autonomic nervous
system and may cause relaxation, drowsiness, or sexual excitement,
depending on the precise acoustic frequency near 1/2 Hz used.
The effects of the 2.5 Hz resonance include
slowing of certain cortical processes, sleepiness, and disorientation.
For these effects to occur, the acoustic intensity must lie in a certain
deeply subliminal range. Suitable apparatus consists of a portable
battery-powered source of weak subaudio acoustic radiation. The method
and apparatus can be used by the general public as an aid to relaxation,
sleep, or sexual arousal, and clinically for the control and perhaps
treatment of insomnia, tremors, epileptic seizures, and anxiety
There is further application as a nonlethal
weapon that can be used in law enforcement standoff situations, for
causing drowsiness and disorientation in targeted subjects. It is then
preferable to use venting acoustic monopoles in the form of a device
that inhales and exhales air with subaudio frequency.
USP # 6,011,991 (January 4, 2000)
Communication System & Method Including
Brain Wave Analysis...
Abstract: A system and method for enabling human beings to communicate
by way of their monitored brain activity. The brain activity of an
individual is monitored and transmitted to a remote location (e.g. by
satellite). At the remote location, the monitored brain activity is
compared with pre-recorded normalized brain activity curves, waveforms,
or patterns to determine if a match or substantial match is found.
If such a match is found, then the computer
at the remote location determines that the individual was attempting to
communicate the word, phrase, or thought corresponding to the matched
stored normalized signal.
USP # 6,006,188 (December 21, 1999)
Speech Signal Processing for Determining
Psychological or Physiological Characteristics...
Abstract: A speech-based system for
assessing the psychological, physiological, or other characteristics of
a test subject is described. The system includes a knowledge base that
stores one or more speech models, where each speech model corresponds to
a characteristic of a group of reference subjects. Signal processing
circuitry, which may be implemented in hardware, software and/or
firmware, compares the test speech parameters of a test subject with the
speech models. In one embodiment, each speech model is represented by a
statistical time-ordered series of frequency representations of the
speech of the reference subjects.
The speech model is independent of a priori
knowledge of style parameters associated with the voice or speech. The
system includes speech parameterization circuitry for generating the
test parameters in response to the test subject's speech. This circuitry
includes speech acquisition circuitry, which may be located remotely
from the knowledge base. The system further includes output circuitry
for outputting at least one indicator of a characteristic in response to
the comparison performed by the signal processing circuitry. The
characteristic may be time-varying, in which case the output circuitry
outputs the characteristic in a time-varying manner.
The output circuitry also may output a
ranking of each output characteristic. In one embodiment, one or more
characteristics may indicate the degree of sincerity of the test
subject, where the degree of sincerity may vary with time. The system
may also be employed to determine the effectiveness of treatment for a
psychological or physiological disorder by comparing psychological or
physiological characteristics, respectively, before and after treatment.
USP # 5,954,630 (September 21, 1999)
FM Theta-Inducing Audible Sound...
Masaki, Kazumi, et al.
Abstract: An audible sound of modulated wave where a very low-frequency
wave of about 20 hertz or lower is superposed on an audio low-frequency
wave effectively stimulates Fm theta in human brain waves to improve
attention and concentration during mental tasks when auditorily
administered. The audible sound is also effective in stimulation of
human alpha wave when the very low-frequency wave lies within the range
of about 2-10 hertz. Such audible sound is artificially obtainable by
generating an electric signal which contains such a modulated wave, and
transducing it into audible sound wave.
USP # 5,954,629 (September 21, 1999)
Brain Wave Inducing System
Yanagidaira, Masatoshi, et
Abstract: Sensors are provided for detecting brain waves of a user, and
a band-pass filter is provided for extracting a particular brain waves
including an .alpha. wave included in a detected brain wave. The
band-pass filter comprises a first band-pass filter having a narrow pass
band, and a second band-pass filter having a wide pass band.
One of the first and second band-pass
filters is selected, and a stimulation signal is produced in dependency
on an .alpha. wave extracted by a selected band-pass filter. In
accordance with the stimulation signal, a stimulation light is emitted
to the user in order to induce the user to relax or sleeping state.
USP # 5,935,054 (August 10, 1999)
Magnetic Excitation of Sensory Resonances
Abstract: The invention pertains to influencing the nervous system of a
subject by a weak externally applied magnetic field with a frequency
near 1/2 Hz. In a range of amplitudes, such fields can excite the 1/2
sensory resonance, which is the physiological effect involved in
"rocking the baby".
USP # 5,922,016 (July 13, 1999)
Apparatus for Electric Stimulation of Auditory Nerves of a Human Being
Abstract: Apparatus for electric stimulation and diagnostics of auditory
nerves of a human being, e.g. for determination of sensation level (SL),
most conformable level (MCL) and uncomfortable level
(UCL) audibility curves, includes a stimulator detachably secured
to a human being for sending a signal into a human ear, and an electrode
placed within the human ear and electrically connected to the stimulator
by an electric conductor for conducting the signals from the stimulator
into the ear.
A control unit is operatively connected to
the stimulator for instructing the stimulator as to characteristics of
the generated signals being transmitted to the ear.
USP # 5,868,103 (February 9, 1999)
Method and Apparatus for Controlling an
Abstract: An apparatus for controlling an animal wherein the animal
receives a control stimulus of the release of a substance having an
adverse effect upon the animal as a corrective measure. The apparatus
includes a transmitter for producing a transmitted field, and a
releasable collar for attaching to the neck of the animal.
The collar includes a receiver for receiving
the transmitted field and for producing a received signal, a control
circuit for determining when the received signal indicates that the
animal requires a corrective measure and for producing a control signal,
a container for containing the substance having an adverse effect upon
the animal, and a mechanism for releasing the substance from the
container into the presence of the animal upon the production of the
control signal by the control circuit. In use, the transmitter is set to
produce the transmitted field and the collar is attached to the neck of
As the animal moves about, the receiver in
the collar receives the transmitted field and produces a received
signal. The control circuit determines when the received signal
indicates that the animal requires a corrective measure. A control
signal is produced by the control circuit when the determination is made
that the animal requires a corrective measure.
Upon the production of the control signal,
the substance having an adverse effect upon the animal is released from
the container and into the presence of the animal.
USP # 5,784,124 (July 21, 1998)
Supraliminal Method of Education...
D'Alitalia, Joseph A., et al.
Abstract: A method of behavior modification
involves having a patient view supraliminal video messages superimposed
upon an underlying video presentation. The video messages incorporate
messages wherein at least some of the messages link a desired modified
behavior to positive feelings of the patient. A supraliminal message
generator and superimposer iteratively selects individual messages for
display from the sequence of messages, decompressing the messages as
required, and places the selected messages in a buffer memory of a video
A processor of the supraliminal message
generator and superimposer then fades the selected message from an
invisible level to a visible level on the video display, and then fades
the selected message from the visible level back to the invisible level.
USP # 5,649,061 (July 15, 1997)
Device and Method for Estimating a Mental
Abstract: A device and method for estimating a mental decision to select
a visual cue from the viewer's eye fixation and corresponding single
event evoked cerebral potential. The device comprises an eye-tracker, an
electronic biosignal processor and a digital computer. The eye-tracker
determines the instantaneous viewing direction from oculometric
measurements and a head position and orientation sensor.
The electronic processor continually
estimates the cerebral electroencephalogramic potential from scalp
surface measurements following corrections for electrooculogramic,
electromyogramic and electrocardiogramic artifacts. The digital computer
analyzes the viewing direction data for a fixation and then extracts the
corresponding single event evoked cerebral potential.
The fixation properties, such as duration,
start and end pupil sizes, end state (saccade or blink) and gaze
fixation count, and the parametric representation of the evoked
potential are all inputs to an artificial neural network for outputting
an estimate of the selection interest in the gaze point of regard.
The artificial neural network is trained
off-line prior to application to represent the mental decisions of the
viewer. The device can be used to control computerized machinery from a
video display by ocular gaze point of regard alone, by determining which
visual cue the viewer is looking at and then using the estimation of the
task-related selection as a selector switch.
USP # 5,644,363 (July 1, 1997)
Apparatus for Superimposing Visual
Subliminal Instructions on a Video Signal
Abstract: A subliminal video instructional device comprises circuitry
for receiving an underlying video signal and presenting this signal to
horizontal and vertical synchronization detection circuits, circuitry
for generating a subliminal video message synchronized to the underlying
video signal, and circuitry for adding the subliminal video message to
the underlying video signal to create a combination video signal.
USP # 5,586,967 (December 24, 1996)
Method & Recording for Producing Sounds and
Messages to Achieve Alpha & Theta Brainwave States...
Davis, Mark E.
Abstract: A method and recording for the use in achieving alpha and
theta brainwave states and effecting positive emotional states in
humans, is provided which includes a medium having a musical composition
thereon with an initial tempo decreasing to a final tempo and verbal
phrases recorded in synchrony with the decreasing tempo.
USP # 5,562,597 (October 8, 1996)
Method & Apparatus for Reducing
Van Dick, Robert C.
Abstract: Physiological stress in a human subject is treated by
generating a weak electromagnetic field about a quartz crystal. The
crystal is stimulated by applying electrical pulses of pulse widths
between 0.1 and 50 microseconds each at a pulse repetition rate of
between 0.5K and 10K pulses per second to a conductor positioned
adjacent to the quartz crystal thereby generating a weak electromagnetic
A subject is positioned within the weak
electromagnetic field for a period of time sufficient to reduce stress.
USP # 5,551,879 (September 3, 1996)
Dream State Teaching Machine
Raynie, Arthur D.
Abstract: A device for enhancing lucidity in the dream state of an
individual. The device includes electronic circuitry incorporated into a
headband for the user to wear while sleeping. The circuitry includes a
detector for fitting adjacent to the eye of the sleeping individual, for
detecting Rapid Eye Movement (REM), which occurs during the dream state.
The detector emits a signal that is
evaluated by additional circuitry to determine whether or not REM sleep
is occurring. If REM sleep is occurring, a signal is generated to
operate a recorded, which typically plays prerecorded messages through
the headphones engaging the ear of the sleeping individual.
USP # 5,539,705 (July 23, 1996)
Ultrasonic Speech Translator and
M. A. Akerman, M., et al.
Abstract: A wireless communication system, undetectable by
radio-frequency methods, for converting audio signals, including human
voice, to electronic signals in the ultrasonic frequency range,
transmitting the ultrasonic signal by way of acoustic pressure waves
across a carrier medium, including gases, liquids and solids, and
reconverting the ultrasonic acoustic pressure waves back to the original
This invention was made with government
support under Contract DE-ACO5-840R2l400, awarded by the US Department
of Energy to Martin Marietta Energy Systems, Inc.
USP # 5,507,291 (April 16, 1996)
Method & Apparatus for Remotely Determining
Information as to Person's Emotional State
Stirbl, et al.
Abstract: In a method for remotely determining information relating to a
person's emotional state, an waveform energy having a predetermined
frequency and a predetermined intensity is generated and wirelessly
transmitted towards a remotely located subject. Waveform energy emitted
from the subject is detected and automatically analyzed to derive
information relating to the individual's emotional state.
Physiological or physical parameters of
blood pressure, pulse rate, pupil size, respiration rate and
perspiration level are measured and compared with reference values to
provide information utilizable in evaluating interviewee's responses or
possibly criminal intent in security sensitive areas.
USP # 5,522,386 (June 4, 1996)
Apparatus for Determination of the
Condition of the Vegetative Part of the Nervous System
Abstract: Apparatus for use in the determination of the condition of the
vegetative part of the nervous system and/or of sensory functions of an
organism, i.e. a human being or animal. The apparatus comprises devices
for generating and supplying to said organism at least one sensory
stimulus chosen from a group of sensory stimuli, such as visual, sound,
olfactory, gustatory, tactile or pain stimuli, and devices for measuring
the skin potential and the evoked response of the organism to a
The measured data are processed by
processing devices for automatically controlling the supply of at least
one stimulus for providing a non-rhythmical sequence of stimuli.
Preferably, pairs of stimuli are supplied for developing a conditioned
USP # 5,480,374 (January 2, 1996)
Method and Apparatus for Reducing
Van Dick, Robert
Abstract: Physiological stress in a human subject is treated by
generating a weak electromagnetic field about a grounded electrode by
the application of pulses of between 5 and 50 microseconds each at a
pulse rate of between 0.5K and 10K pulses per second to a power
electrode, the power electrode and grounded electrode being coupled to
high voltage pulse generation means. A subject is positioned within the
weak electromagnetic field for a period of time sufficient to cause an
increase in his or her alpha or theta brain wave levels.
USP # 5,479,941 (January 2, 1996)
Device for Inducing Altered States of
Abstract: A rotating device for producing altered states of
consciousness in a subject is provided. The subject's body rotates about
a point in the center of the body support means at a speed between about
10 and about 60 revolutions per minute. In a preferred embodiment the
direction of rotation is periodically reversed.
USP # 5,392,788 (February 28, 1995)
Method and Device for Interpreting Concepts
and Conceptual Thought...
Hudspeth, William J.
Abstract: A system for acquisition and decoding of EP and SP signals is
provided which comprises a transducer for presenting stimuli to a
subject, EEG transducers for recording brainwave signals from the
subject, a computer for controlling and synchronizing stimuli presented
to the subject and for concurrently recording brainwave signals, and
either interpreting signals using a model for conceptual perceptional
and emotional thought to correspond EEG signals to thought of the
subject or comparing signals to normative EEG signals from a normative
population to diagnose and locate the origin of brain dysfunctional
underlying perception, conception, and emotion.
USP # 5,356,368 (October 18, 1994)
Method & Apparatus for Inducing Desired
States of Consciousness
Monroe, Robert E.
Abstract: Improved methods and apparatus for entraining human brain
patterns, employing frequency following response (FFR)
techniques, facilitate attainment of desired states of consciousness. In
one embodiment, a plurality of electroencephalogram (EEG)
waveforms, characteristic of a given state of consciousness, are
combined to yield an EEG waveform to which subjects may be susceptible
In another embodiment, sleep patterns are
reproduced based on observed brain patterns during portions of a sleep
cycle; entrainment principles are applied to induce sleep. In yet
another embodiment, entrainment principles are applied in the work
environment, to induce and maintain a desired level of consciousness. A
portable device also is described.
USP # 5,352,181 (October 4, 1994)
Method & Recording for Producing Sounds and
Davis, Mark E.
Abstract: A method and recording for use in achieving Alpha and Theta
brain wave states and effecting positive emotional states in humans to
enhance learning and self-improvement, is provided which includes a
medium having a musical composition recorded thereon with an initial
tempo decreasing to a final tempo and verbal phrases, comprising between
approximately 4 and approximately 8 words, recorded in synchrony with
the decreasing initial tempo.
USP # 5,330,414 (July 19, 1994)
Brain Wave Inducing Apparatus
Abstract: A random signal generator outputs a random noise signal to a
band pass filter which selectively passes frequency components in the
frequency range of a desired brain wave from a subject. The output of
the band pass filter is supplied to an automatic level controller. The
automatic level controller sets the output of band pass filter to a
Then, the output of the automatic level
controller is fed to a stimulating light generator, which converts the
output of the automatic level controller into a light signal for
stimulating the subject in order to induce the desired brain wave from
the subject. The light signal is then emitted into the subject's eyes.
USP # 5,289,438 (February 22, 1994)
Method & System for Altering Consciousness
Abstract: A system for altering the states of human consciousness
involves the simultaneous application of multiple stimuli, preferable
sounds, having differing frequencies and wave forms.
The relationship between the frequencies of
the several stimuli is exhibited by the equation,
g = 2.sup.n/4 .multidot.f
where: f = frequency of one stimulus; g =
frequency of the other stimuli or stimulus; and n = a positive or
negative integer which is different for each other stimulus.
USP # 5,245,666 (September 14, 1993)
Personal Subliminal Messaging System
Mikell, Bruce T.
Abstract: A personal subliminal messaging system includes a wide range
linear subliminal modulator (43), a digital audio recording or play
device (46), a microphone (51) to pick up the sound at the ear, and an
earpiece (50) to deliver the subliminal message. The sound level at the
user's ear is detected and measured.
After rise-time and decay conditioning of
the varying dc control signal, the wide range linear modulator (43) uses
this signal to control the level of the message to the earpiece (50).
The user adjusts the system for a liminal of a subliminal level. The
psychoacoustic phenomena of Post Masking is used to increase the
integrity of the message in subliminal messaging systems.
USP # 5,270,800 (December 14, 1993)
Subliminal Message Generator
Sweet. Robert L.
Abstract: A combined subliminal and supraliminal message generator for
use with a television receiver permits complete control of subliminal
messages and their manner of presentation. A video synchronization
detector enables a video display generator to generate a video message
signal corresponding to a received alphanumeric text message in
synchronism with a received television signal. A video mixer selects
either the received video signal or the video message signal for output.
The messages produced by the video message
generator are user selectable via a keyboard input. A message memory
stores a plurality of alphanumeric text messages specified by user
commands for use as subliminal messages. This message memory preferably
includes a read only memory storing predetermined sets of alphanumeric
text messages directed to differing topics. The sets of predetermined
alphanumeric text messages preferably include several positive
affirmations directed to the left brain and an equal number of positive
affirmations directed to the right brain that are alternately presented
The left brain messages are presented in a
linear text mode, while the right brain messages are presented in a
three dimensional perspective mode. The user can control the length and
spacing of the subliminal presentations to accommodate differing
conscious thresholds. Alternative embodiments include a combined cable
television converter and subliminal message generator, a combine
television receiver and subliminal message generator and a computer
capable of presenting subliminal messages.
USP # 5,224,864 (July 6, 1993)
Method of Recording and Reproducing
Subliminal Signals that are 180 Degrees Out of Phase
Woith, Blake F.
Abstract: A subliminal recording includes both subliminal message and
mask signals applied to both tracks of a two track recording medium. The
subliminal message signals are identical in content, and are recorded in
an out-of-phase relationship. The mask signals are recorded in phase.
The resulting recording may be utilized in
the conventional manner for subliminal recordings. By combining the
composite signals in an inverted relationship, the mask signals cancel
while the subliminal message signals are additive, thus allowing the
presence of the subliminal message signal to be confirmed on the
USP # 5,221,962 (June 22, 1993)
Subliminal Device having Manual Adjustment
of Perception Level of Subliminal Messages
Backus, Alan L., et al.
Abstract: A method and apparatus for presenting subliminal visual and/or
audio messages which allows user verification of message content and
presence, as well as proper adjustment of message obviousness while
accounting for ambient conditions and user sensitivities is disclosed.
This method and apparatus also presents synchronized reinforced sensory
input of subliminal messages.
This is performed by simultaneously
overlaying images received from a VCR over a plurality of television
signals. This apparatus directs overlay images over RF television
signals having both audio and video components
USP # 5,215,468 (June 1, 1993)
Method and Apparatus for Introducing
Subliminal Changes to Audio Stimuli
Lauffer, Martha A., et al.
Abstract: A method and apparatus for introducing gradual changes to an
audio signal so that the changes are subliminal. The changes can involve
tempo and volume, for example, and can take the form of a gentle
gradient having ever increasing/decreasing ramp-like changes over a
sufficient duration, or a more complex program involving several gentle
In the preferred embodiment, an enhanced
audio play-back device such as a portable audio cassette recorder can be
programmed to subliminally alter the characteristics of a standard
pre-recorded tape containing music, for example. As a motivational tool
during walking, jogging or other repetitive exercise, the tempo is
gradually increased over a period of time to encourage a corresponding
gradual (and subliminal) increase in physical exertion by a user whose
rate of movement is proportional to the tempo of the music.
The tempo can be either manually changed in
conjunction with a subliminal program, or by itself in an override mode,
or by itself in a version of the present-inventive audio play-back
device which allows only manual tempo alternation. In an alternate
embodiment, a special pre-recorded tape contains subliminal changes in
tempo, for example, for play-back on a standard audio cassette recorder
(which operates at one speed, only) to cause the same effect as the
USP # 5,213,562 (May 25, 1993)
Method of Inducing Mental, Emotional and
Physical States of Consciousness...
Monroe, Robert A.
Abstract: A method having applicability in replication of desired
consciousness states; in the training of an individual to replicate such
a state of consciousness without further audio stimulation; and in the
transferring of such states from one human being to another through the
imposition of one individual's EEG, superimposed on desired stereo
signals, on another individual, by inducement of a binaural beat
USP # 5,194,008 (March 16, 1993)
Subliminal Image Modulation Projection and
Detection System and Method
Mohan, William L., et al.
Abstract: Weapon training simulation system including a computer
operated video display scene whereon is projected a plurality of visual
targets. The computer controls the display scene and the targets,
whether stationary or moving, and processes data of a point of aim
sensor apparatus associated with a weapon operated by a trainee.
The sensor apparatus is sensitive to
non-visible or subliminal modulated areas having a controlled contrast
of brightness between the target scene and the targets. The sensor
apparatus locates a specific subliminal modulated area and the computer
determines the location of a target image on the display scene with
respect to the sensor apparatus.
USP # 5,175,571 (December 29, 1992)
Glasses with Subliminal Message
Tanefsky, Faye, et al.
Abstract: A pair of subliminal imaging spectacles is provided with a
matched pair of visual subliminal images designed and placed so as to
merge into one image due to the stereoscopic effect of human vision and
thus to impart a subliminal message to the wearer.
USP # 5,170,381 (December 8, 1992)
Method for Mixing Audio Subliminal
Taylor, Eldon, et al.
Abstract: Audio subliminal recordings are made in which in addition to
using a primary carrier, such as music, two audio channels are used to
deliver subliminal messages to the brain. On one channel, accessing the
left brain hemisphere, the message delivered is meaningfully spoken,
forward-masked, permissive affirmations delivered in a round-robin
manner by a male voice, a female voice and a child's voice.
On the other channel, accessing the right
brain, directive messages, in the same voices, are recorded in
backward-masked (or meta-contrast). The three voices are recording in
round-robin fashion with full echo reverberation. The audio tracks are
mixed using a special processor which converts sound frequencies to
electrical impulses and tracks the subliminal message to synchronize the
subliminal message in stereo with the primary carrier.
The processor maintains constant gain
differential between the primary carrier and the subliminal verbiage
and, with the subliminal verbiage being recorded with round-robin, full
echo reverberation, ensures that none of a message is lost. The primary
carrier should be continuous music without breaks or great differences
USP # 5,159,703 (October 27, 1992)
Silent Subliminal Presentation System
Abstract: A silent communications system in which non-aural carriers, in
the very low or very high audio frequency range or in the adjacent
ultrasonic frequency spectrum, are amplitude or frequency modulated with
the desired intelligence and propagated acoustically or vibrationally,
for inducement into the brain, typically through the use of
loudspeakers, earphones or piezoelectric transducers.
USP # 5,151,080 (September 29, 1992)
Method & Apparatus for Inducing &
Establishing a Changed State of Consciousness
Abstract: An electro-acoustic device
includes a sound generator as well as a system for producing synthetic
human speech, connected to a modulation stage for superimposing the
output signals thereof. The superimposed output signals are applied via
an amplifier stage to one of a headphone system or loudspeaker system.
USP # 5,135,468 (August 4, 1992)
Method & Apparatus of Varying the Brain
State of a Person by Means of an Audio Signal
Meissner, Juergen P.
Abstract: A method of varying the brain state of a person includes the
steps of supplying the first audio signal to one ear of the person,
supplying a second audio signal to the other ear of the person, and
substantially continuously varying the frequency of at least one of the
first and second audio signals to vary the brain state of the person.
USP # 5,134,484 (July 28, 1992)
Superimposing Method & Apparatus Useful for
Abstract: Data to be displayed is combined with a composite video
signal. The data is stored in a memory in digital form. Each byte of the
data is read out in sequential fashion to determine: the recurrence
display rate of the data according to the frame sync pulses of the video
signal; the location of the data within the video image according to the
line sync pulses of the video signal; and the location of the data
display within the video image according to the position information.
Synchronization of the data with the video
image is derived from the sync pulses of the composite video signal. A
similar technique is employed to combine sound data with an audio
signal. Data to be displayed may be presented as a subliminal message or
may persist for a given time interval. The data may be derived from a
variety of sources including a prerecorded or live video signal.
The message may be a reminder message
displayed upon a television screen to remind the viewer of an
appointment. The data may be stored in a variety of different memory
devices capable of high speed data retrieval. The data may be generated
locally on-line or off-line and transferred to memory which stores the
data necessary to create the message.
USP # 5,128,765 (July 7, 1992)
System for Implementing the Synchronized
Superimposition of Subliminal Signals
Abstract: An apparatus and system for the controlled delivery of a
subliminal video and/or audio message on to a source signal from a video
tape player or similar. The source signal is divided into audio and
video portions. A video processor reads synchronization information from
the source signal.
A controller transmits a stored subliminal
image at designated times to a mixer amplifier fully synchronized with
the source signal. Concurrently, an audio subliminal message is applied
to the source audio at a volume level regulated at some fraction to the
source audio. The combined signals are transmitted to a monitor for
USP # 5,123,899 (June 23, 1992)
Method & System for Altering Consciousness
Abstract: A system for altering the states of human consciousness
involves the simultaneous application of multiple stimuli, preferable
sounds, having differing frequencies and wave forms.
The relationship between the frequencies of
the several stimuli is exhibited by the equation g = s.sup.n/4 .multidot.f
where: f = frequency of one stimulus; g = frequency of the other stimuli
of stimulus; and n=a positive or negative integer which is different for
each other stimulus.
USP # 5,052,401 (October 1, 1991)
Product Detector for a Steady Visual Evoked
Potential Stimulator and Product Detector
Abstract: An automated visual testing system is disclosed which presents
an alternating steady state visual stimulus to a patient through an
optical system that modifies the stimulus image. As the image changes,
the patient produces evoked potentials that change. The evoked
potentials are detected by a product detector which produces the
amplitude of the evoked potentials.
The product detector includes filters which
isolate the patient's evoked potentials, a modulator which detects the
response using the stimulus source frequency and a demodulator that
determines the amplitude of the response. The product detector detects
the level of the steady state evoked potential signals even in the
presence of substantial background noise and extraneous
electroencephalograhic signals. These detectors can be used to monitor
the evoked potential produced by visual, aural or somatic steady state
The components described above can be used
to produce a system that can determine to which of several different
displays an observer is paying attention by providing images that blink
at different frequencies and product detectors for each of the stimulus
frequencies. The product detector producing the highest output indicates
the display upon which the observer is focused.
USP # 5,047,994 (September 10, 1991)
Supersonic Bone Conduction Hearing Aid and
Lenhardt, Martin, et al.
Abstract: A supersonic bone conduction hearing aid that receives
conventional audiometric frequencies and converts them to supersonic
frequencies for connection to the human sensory system by vibration bone
conduction. The hearing is believed to use channels of communications to
the brain that are not normally used for hearing.
These alternative channels do not
deteriorate significantly with age as does the normal hearing channels.
The supersonic bone conduction frequencies are discerned as frequencies
in the audiometric range of frequencies.
USP # 5,036,858 (August 6, 1991)
Method & Apparatus for Changing Brain Wave
Carter, John L., et al.
Abstract: A method for changing brain wave frequency to a desired
frequency determines a current brain wave frequency of a user, generates
two frequencies with a frequency difference of a magnitude between that
of the current actual brain wave frequency and the desired frequency but
always within a predetermined range of the current actual brain wave
frequency, and produces an output to the user corresponding to the two
One apparatus to accomplish the method has a
computer processor, a computer memory, EEG electrodes along with an
amplifier, a programmable timing generator responsive to the computer
processor for generating the two frequencies, audio amplifiers and a
beat frequency generator driving a visual frequency amplifier.
USP # 5,027,208 (June 25,1991)
Therapeutic Subliminal Imaging System
Dwyer, Jr., Joseph, et al.
Abstract: A therapeutic subliminal imaging system wherein a selected
subliminal message is synchronized with and added to an existing video
signal containing a supraliminal message.
A television receiver or video recorder can
be used to provide the supraliminal message and a video processing
circuit varies the intensity of that perceptible message to incorporate
one or more subliminal images.
USP # 5,017,143 (May 21, 1991)
Method and Apparatus for Producing
Backus, Alan, et al.
Abstract: A method and apparatus to produce
more effective visual subliminal communications. Graphic and/or text
images, presented for durations of less than a video frame, at organized
rhythmic intervals, the rhythmic intervals intended to affect user
receptivity, moods or behavior.
Subliminal graphic images having translucent
visual values locally dependent on background values in order to
maintain desired levels of visual contrast.
USP # 4,958,638 (September 25, 1990)
Non-Contact Vital Signs Monitor
Sharpe, Steven, et al.
Abstract: An apparatus for measuring simultaneous physiological
parameters such as heart rate and respiration without physically
connecting electrodes or other sensors to the body. A beam of frequency
modulated continuous wave radio frequency energy is directed towards the
body of a subject.
The reflected signal contains phase
information representing the movement of the surface of the body, from
which respiration and heartbeat information can be obtained. The
reflected phase modulated energy is received and demodulated by the
apparatus using synchronous quadrature detection. The quadrature signals
so obtained are then signal processed to obtain the heartbeat and
respiratory information of interest.
USP # 4,924,744 (May 15, 1990)
Apparatus for Generating Sound through Low
Frequency and Noise Modulation
Abstract: In an apparatus for generating sound, there are provided a
plurality of channels for generating sounds. Each of the channels
includes a memory for storing waveform data, and at least one of the
channels includes a noise generator so that various kinds of sounds
including rhythm sound-effects sound, effects sound-vibrato etc. are
There is further provided a controller by
which voice sound signal is passed through the channels so that
artificial sound, voice sound etc. are generated. There is still further
provided a circuit for adjusting an amplitude level of a whole sound
which is obtained by mixing output sounds of the channels so that far
and near sound is produced.
Further, each of the channels includes left
and right attenuators which divide a channel sound into left and right
channel sounds. Still further, the apparatus comprises a low frequency
oscillator for controlling a depth of frequency modulation, and a
controller for writing sampling data of a predetermined waveform into
serial addresses of a memory.
USP # 4,889,526 (December 26, 1989)
Non-Invasive Method & Apparatus for
Modulating Brain Signals...
Rauscher, Elizabeth A.
Abstract: This invention incorporates the discovery of new principles
which utilize magnetic and electric fields generated by time varying
square wave currents of precise repetition, width, shape and magnitude
to move through coils and cutaneously applied conductive electrodes in
order to stimulate the nervous system and reduce pain in humans. Timer
means, adjustment means, and means to deliver current to the coils and
conductive electrodes are described, as well as a theoretical model of
The invention incorporates the concept of
two cyclic expanding and collapsing magnetic fields which generate
precise wave forms in conjunction with each other to create a beat
frequency which in turn causes the ion flow in the nervous system of the
human body to be efficiently moved along the nerve path where the locus
of the pain exists to thereby reduce the pain. The wave forms are
created either in one or more coils, one or more pairs of electrodes, or
a combination of the two.
USP # 4,883,067 (November 28, 1989)
Method & Apparatus for Translating the EEG into
Knispel, Joel, et al.
Abstract: A method and apparatus for applying a musical feedback signal
to the human brain, or any other brain, to induce controllable
psychological and physiological responses. A signal representing the
ongoing electroencephalographic (EEG) signal of a brain preferably is
obtained from the electrode location on the scalp known as CZ or P3 in
A signal processor converts the ongoing EEG
into electrical signals which are converted into music by synthesizers.
The music is acoustically fed back to the brain after a time delay
calculated to shift the phase of the feedback in order to reinforce
specific or desired ongoing EEG activity from the scalp position of
interest. The music is comprised of at least one voice that follows the
moment-by-moment contour of the EEG in real time to reinforce the
desired EEG activity.
The music drives the brain into resonance
with the music to provide a closed loop or physiological feedback
effect. Preferably, the musical feedback comprises additional voices
that embody psychoacoustic principles as well as provide the content and
direction normally supplied by the therapist in conventional
biofeedback. The invention contemplates numerous applications for the
USP # 4,877,027 (October 31, 1989)
Brunkan, Wayne B.
Abstract: Sound is induced in the head of a person by radiating the head
with microwaves in the range of 100 megahertz to 10,000 megahertz that
are modulated with a particular waveform. The waveform consists of
frequency modulated bursts. each burst is made up of 10 to 20 uniformly
spaced pulses grouped tightly together. the burst width is between 500
nanoseconds and 100 microseconds.
The pulse width is in the range of 10
nanoseconds to 1 microsecond. The bursts are frequency modulated by the
audio input to create the sensation of hearing in the person whose head
USP # 4,858,612 (August 22, 1989)
Stocklin, Philip L.
Abstract: A method and apparatus for stimulation of hearing in mammals
by introduction of a plurality of microwaves into the region of the
auditory cortex is shown and scribed. A microphone is used to transform
sound signals into electrical signals which are in turn analyzed and
processed to provide controls for generating a plurality of microwave
signals at different frequencies.
The multifrequency microwaves are then
applied to the brain in the region of the auditory cortex. By this
method sounds are perceived by the mamal which are representative of the
original sound received by the microphone.
USP # 4,834,701 (May 30, 1989)
Apparatus for Inducing Frequency Reduction
in Brain Wave
Abstract: Frequency reduction in human brain wave is inducible by
allowing human brain to perceive 4-16 hertz beat sound. Such beat sound
can be easily produced with an apparatus, comprising at least one sound
source generating a set of low-frequency signals different each other in
frequency by 4-16 hertz. Electroencephalographic study revealed that the
beat sound is effective to reduce beta-rhythm into alpha-rhythm, as well
as to retain alpha-rhythm.
USP # 4,821,326 (April 11, 1989)
Non-Audible Speech Generation Method &
Abstract: A non-audible speech generation apparatus and method for
producing non-audible speech signals which includes an ultrasonic
transducer or vibrator for projecting a series of glottal shaped
ultrasonic pulses to the vocal track of a speaker. The glottal pulses,
in the approximate frequency spectrum extending from 15 kilohertz to 105
kilohertz, contains harmonics of approximately 30 times the frequency of
the acoustical harmonics generated by the vocal cords, but which may
nevertheless be amplitude modulated to produce non-audible speech by the
speaker's silently mouthing of words.
The ultrasonic speech is then received by an
ultrasonic transducer disposed outside of the speaker's mouth and
electronically communicated to a translation device which down converts
the ultrasonic signals to corresponding signals in the audible frequency
range and synthesizes the signals into artificial speech.
USP # 4,777,529 (October 11, 1988)
Auditory Subliminal Programming System
Schultz, Richard M., et
Abstract: An auditory subliminal programming system includes a
subliminal message encoder that generates fixed frequency security tones
and combines them with a subliminal message signal to produce an encoded
subliminal message signal which is recorded on audio tape or the like.
A corresponding subliminal decoder/mixer is
connected as part of a user's conventional stereo system and receives as
inputs an audio program selected by the user and the encoded subliminal
message. The decoder/mixer filters the security tones, if present, from
the subliminal message and combines the message signals with selected
low frequency signals associated with enhanced relaxation and
concentration to produce a composite auditory subliminal signal.
The decoder/mixer combines the composite
subliminal signal with the selected audio program signals to form
composite signals only if it detects the presence of the security tones
in the subliminal message signal. The decoder/mixer outputs the
composite signal to the audio inputs of a conventional audio amplifier
where it is amplified and broadcast by conventional audio speakers.
USP # 4,734,037 (March 29, 1988)
McClure, J. Patrick
Abstract: A transparent sheet is disclosed having a message thereon. The
sheet has a first side adapted to be attached facing a plate which is
normally viewed by a viewer and a second side facing the viewer. The
message is arranged to be readably intelligible from the second side but
is not liminally visible to the viewer when viewed from a normal viewing
distance from the second side under normal viewing conditions.
The message has a subliminal effect upon the
viewer when viewed from the normal viewing distance from the second side
under normal viewing conditions. A viewer can electively subject him or
herself to subliminal messages while viewing television at leisure.
USP # 4,717,343 (January 5, 1988)
Method of Changing a Person's Behavior
Densky, Alan B.
Abstract: A method of conditioning a person's unconscious mind in order
to effect a desired change in the person's behavior which does not
require the services of a trained therapist. Instead the person to be
treated views a program of video pictures appearing on a screen. The
program as viewed by the person's unconscious mind acts to condition the
person's thought patterns in a manner which alters that person's
behavior in a positive way.
USP # 4,699,153 (October 13, 1987)
System for Assessing Verbal
Shevrin, Howard, et al.
Abstract: A system for assessing psychobiological conditions of a
subject utilizes a plurality of words which are selected to be in four
categories as critical stimuli. The words are presented by a
tachistoscope to the subject in subliminal and supraliminal modes of
operation. Subliminal stimulation of the subject is achieved by
presenting the selected words for an exposure period of approximately
The supraliminal exposure time is
approximately thirty milliseconds. Prior to stimulation, the subject is
diagnosed in accordance with conventional psychoanalytical techniques to
establish the presence and nature of a pathological condition. The words
are selected and categorized in four groups: pleasant words, unpleasant
words, words related to a diagnosed conscious pathological condition,
and words related to a diagnosed unconscious pathological condition.
The brain wave responses which are evoked by
the stimulation are collected via electrodes and analyzed in accordance
with a trans-information technique which is based on information signal
theory for establishing a probabilistic value which corresponds to the
information content of the evoked responses.
USP # 4,692,118 (September 8, 1987)
Video Subconscious Display Attachment
Mould, Richard E.
Abstract: An apparatus and method for introducing messages to the
subconscious mind is disclosed, which includes a panel positioned
adjacent a television screen, with the panel having non-distractive
messages imprinted thereon, such that as the subject consciously focuses
his attention on the video screen, his subconscious mind records the
message from the panel that is within his peripheral vision.
USP # 4,616,261 (October 7, 1986)
Method & Apparatus for Generating
Subliminal Visual Messages
Crawford, James R., et al.
Abstract: A system for generating a subliminal message during the
display of a normal television program on a television receiver utilizes
a personal computer to generate an RF carrier modulated with video
signals encoding the subliminal message. The computer runs under the
control of an application program which stores the subliminal message
and also controls the computer to cause it to generate timing signals
that are provided to a single pole double-throw switch.
The source of the normal television program
and the video output of the computer are connected to the two switch
inputs and the switch output is connected to the television receiver
antenna system. The timing signals cause the switch to normally display
the conventional television program and to periodically switch to the
computer output to generate the subliminal message.
The video output of the computer includes
horizontal and vertical synchronizing signals which are of substantially
the same frequency as the synchronizing signals incorporated within the
normal program source but of an arbitrary phase.
USP # 4,573,449 (March 4, 1986)
Method for Stimulating the Falling Asleep
and/or Relaxing Behavior of a Person
Warnke, Egon F.
Abstract: A method and apparatus is provided with which a person
suffering from sleeplessness can be more easily relaxed and may more
rapidly fall asleep. In particular, sound pulses are emitted by an
electro-acoustic transducer, according to the cadence of which, the
person seeking to fall asleep is induced to breathe in and out over a
predetermined period of time.
By suitably selecting the pulse sequence
frequency, the pitch and the amplitude of the sound pulses may be
adjusted thereby enhancing the process of falling asleep.
USP # 4,508,105 (April 2, 1985)
Shadow Generating Apparatus
Whitten, Glen, et al.
Abstract: Disclosed is an apparatus for inducing various brain wave
patterns through visual stimulation. The apparatus comprises a pair of
spectacles or other viewing apparatus having a liquid crystal display
embedded in each lens. By repetitively activating and deactivating the
liquid crystals, shadows are generated which are perceived by the
subject individual wearing the viewing apparatus.
Responding to the frequency of shadow
generation, the subject's brain is thereby induced to generate
sympathetic brain wave frequencies. The apparatus finds particular
utility in the generation of alpha waves. Because learning is enhanced
when the brain is in the alpha state, activities such as listening to
tapes or lectures and the like can be carried out with greater facility.
Shadow generation is accomplished through
the use of a timing mechanism for each liquid crystal display and the
frequency for each is adjustable over a wide range, permitting
synchronous or asynchronous timing.
USP # 4,395,600 (July 26, 1983)
Auditory Subliminal Message System & Method
Lundy, Rene R., et al.
Abstract: Ambient audio signals from the customer shopping area within a
store are sensed and fed to a signal processing circuit that produces a
control signal which varies with variations in the amplitude of the
sensed audio signals. A control circuit adjusts the amplitude of an
auditory subliminal anti-shoplifting message to increase with increasing
amplitudes of sensed audio signals and decrease with decreasing
amplitudes of sensed audio signals.
This amplitude controlled subliminal message
may be mixed with background music and transmitted to the shopping area.
To reduce distortion of the subliminal message, its amplitude is
controlled to increase at a first rate slower than the rate of increase
of the amplitude of ambient audio signals from the area. Also, the
amplitude of the subliminal message is controlled to decrease at a
second rate faster than the first rate with decreasing ambient audio
signal amplitudes to minimize the possibility of the subliminal message
becoming supraliminal upon rapid declines in ambient audio signal
amplitudes in the area.
A masking signal is provided with an
amplitude which is also controlled in response to the amplitude of
sensed ambient audio signals. This masking signal may be combined with
the auditory subliminal message to provide a composite signal fed to,
and controlled by, the control circuit.
USP # 4,388,918 (June 21, 1983)