Audio-visual monitoring system

Details Audio-visual monitoring system Audio-visual monitoring system

1985-03-04

1987-10-06

Britton, Howard W.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358 21R, 358 22, 358139, 358181, 358185, 358311, 358903, 360 141, 360 143, H04N 576

Patent

active

046986642

ABSTRACT:
An analog data stream is monitored as a series of blocks. A ring memory array digitally stores the blocks and repetitively loads and unloads the blocks. A freeze switch disables loading of the latest blocks. A block identifier puts out a unique block identification value for each block put out by the memory and is responsive to the freeze switch, so that when loading stops, each block put out bears the same identification value. The invention is particularly well suited to handling of television frames.

REFERENCES:
patent: 3954098 (1976-05-01), Dick
patent: 4121283 (1978-10-01), Walker
patent: 4302776 (1981-11-01), Taylor
patent: 4435792 (1984-03-01), Bechtolscheim
patent: 4538188 (1985-08-01), Barker

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