Picture-in-picture color television receiver

Details Picture-in-picture color television receiver Picture-in-picture color television receiver

1986-01-03

1987-05-12

Groody, James J.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358 22, 358181, H04N 5262, H04N 5272

Patent

active

046654380

ABSTRACT:
A color television receiver, having a tuner and associated demodulation circuits for both a main picture signal and a picture-in-picture (PIP) signal, uses a single memory for synchronization and for storing a single subsampled field of the PIP signal. Appropriate circuitry is included to selectively adjust the output of the memory to prevent the possible disorder of lines of the resultant PIP signal on display.

REFERENCES:
patent: 4139860 (1979-02-01), Micic et al.
patent: 4249211 (1981-02-01), Baba et al.
patent: 4267560 (1981-05-01), Ishikawa et al.
patent: 4367484 (1983-01-01), Kuroyanagi et al.
"TV Receiver Puts Two Pictures on Screen at Same Time", by Ullrich et al; Electronics, vol. 50, No. 18, Sep. 1, 1977, pp. 102-106.

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