Fast response picture-in-picture circuitry

Details Fast response picture-in-picture circuitry Fast response picture-in-picture circuitry

1989-04-20

1990-04-03

Peng, John K.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

3581951, 358188, H04N 5272, H04N 550, H04N 544

Patent

active

049145169

ABSTRACT:
A channel sampler system, including a television signal tuner, displays an array of inset pictures on a display screen. Each inset picture is a still video picture (i.e., freeze-frame) selected by tuning each of the channels in a scan list of channels. A feedback signal is used to determine the point at which the channel is tuned, at which point a frame of video is received and stored, so that the television program sample freeze-frame image is taken from each active channel without undue delay.

REFERENCES:
patent: 4623915 (1986-11-01), Bolger
patent: 4665438 (1987-05-01), Miron et al.
patent: 4821121 (1989-04-01), Beaulier
Owner's Manual for RCA VPT 695 HF Video Cassette Recorder, p. 28.
CTC 140 Color TV Chassis Technical Training Manual, p. 21.

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