Video signal decompression apparatus for independently compresse

Details Video signal decompression apparatus for independently compresse Video signal decompression apparatus for independently compresse

1991-04-29

1992-09-08

Kostak, Victor R.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358136, H04N 713

Patent

active

051463253

ABSTRACT:
In a video decompression system for decompressing compressed image data wherein odd and even fields of video signal are independently compressed in sequences of intraframe and interframe compression modes and interleaved for transmission, the odd and even fields are independently decompressed. During intervals when valid decompressed odd/even field data is not available, even/odd field data is substituted for the unavailable odd/even field data. Independently decompressing the even and odd fields of data and substituting the opposite field of data for unavailable data may be used to advantage to reduce image display latency during system start-up and channel changes.

REFERENCES:
patent: 4837618 (1989-06-01), Hatori
patent: 4942465 (1990-07-01), Ohta
patent: 5040061 (1991-08-01), Yonemitsu
patent: 48020065 (1989-01-01), Iinuma et al.

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