Semiconductor device containing video signal processing circuit

Details Semiconductor device containing video signal processing circuit Semiconductor device containing video signal processing circuit

1987-09-09

1990-05-08

Groody, James J.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358139, H04N 514

Patent

active

049243144

ABSTRACT:
An integrated circuit 1 for video signal processing includes a 2-line memory 3, a video signal processing circuit 4 and a coincidence circuit 6. A digital video signal of 8 bits inputted to an input terminal group 2 is applied to the 2-line memory 3 and the coincidence circuit 6. Also, the 2-line delay signal of 8 bits outputted from the 2-line memory 3 is applied to the coincidence circuit 6. The coincidence circuit 6 determines coincidence or non-coincidence of the input digital video signal and the 2-line delay signal received and outputs the result of that determination through a coincidence output terminal. As a result, an operation of the 2-line memory 3 can be tested individually.

REFERENCES:
patent: 3716667 (1973-02-01), Connor et al.
patent: 4050084 (1977-09-01), Rossi
patent: 4811094 (1989-03-01), Sakata
Hickok, William K., "Amplitude and Phase Sensitive Comb Filter", Research Disclosure, 9/78, No. 175, pp. 56-57.

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