Source accessed as backup 1/15/09 http://www.mindcontrolforums.com/p/usp6,506,148a.htm
According to U.S. patent 6,506,148 (emphasis added):
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.
FIG. 1 illustrates the electromagnetic field that emanates from a monitor when
the video signal is modulated such as to cause pulses in image intensity, and
a nearby subject who is exposed to the field.
FIG. 2 shows a circuit for modulation of a composite video signal for the purpose
of pulsing the image intensity.
[...] For a TV monitor, the image pulsing may be inherent in the video stream
as it flows from the video source, or else the stream may be modulated such
as to overlay the pulsing. In the first case, a live TV broadcast can be arranged
to have the feature imbedded simply by slightly pulsing the illumination of
the scene that is being broadcast. This method can of course also be used in
making movies and recording video tapes and DVDs.
[...] Certain monitors can emit electromagnetic field pulses that excite a sensory
resonance in a nearby subject, through image pulses that are so weak as to be
subliminal. This is unfortunate since it opens a way for mischievous application
of the invention, whereby people are exposed unknowingly to manipulation of
their nervous systems for someone else's purposes. Such application would be
unethical and is of course not advocated. It is mentioned here in order to alert
the public to the possibility of covert abuse that may occur while being online,
or while watching TV, a video, or a DVD.
This article comes from UnderReported.com
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