Television system using a marking code superimposed on the pictu

Details Television system using a marking code superimposed on the pictu Television system using a marking code superimposed on the pictu

1981-02-25

1983-01-11

Martin, John C.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

H04N 704

Patent

active

043684866

ABSTRACT:
Television system using a marking code superimposed on a picture.
According to the invention, this code is constituted by a strip located in the right-hand part of the picture and formed by a periodic sequence of white and black areas constituting a clock and by a strip located in the left-hand part of the picture and formed by a sequence of white or black areas constituting the actual code. A decoder detects the presence of clock signals and compares the code received with stored codes.

REFERENCES:
patent: 3737566 (1973-06-01), Baer et al.
patent: 3885217 (1975-05-01), Cintron
patent: 4051532 (1977-09-01), Hilbert et al.
Lawrence et al., "Addressing Method for Remote Television Receivers", IBM Technical Disclosure Bulletin, vol. 13, No. 11, Apr. 1971, p. 3239.

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