Method and apparatus for generating subliminal visual messages

Details Method and apparatus for generating subliminal visual messages Method and apparatus for generating subliminal visual messages

1983-10-17

1986-10-07

Chin, Tommy P.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358 92, 358142, 358183, H04N 5262, H04N 1302

Patent

active

046162615

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.

REFERENCES:
patent: 4006291 (1977-02-01), Imsand
patent: 4151557 (1979-04-01), Iida
patent: 4424591 (1984-01-01), Boardman

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