Facsimile and static presentation processing – Facsimile – Specific signal processing circuitry
Patent
1991-01-18
1992-04-07
Kostak, Victor R.
Facsimile and static presentation processing
Facsimile
Specific signal processing circuitry
358135, H04N 7137
Patent
active
051033070
ABSTRACT:
An efficient coding and decoding system is provided for a moving picture signal having independent and dependent frames. An interval between independent frames is varied in accordance with frame difference or amount of coded data. Predictive error signals are produced by subtracting predictive picture signals based on two of the frames, the interval therebetween thus varied, from picture signals of dependent frames. The predictive error picture signals and picture signals of the independent frames are then coded to produce a coded moving picture signal. When decoding, decoded predictive picture signals and predictive error picture signals are added to each other to reproduce the picture signals of the dependent frames. Decoded picture signals of the independent frames and the reproduced picture signals of the dependent frames are serially outputted to reproduce the original moving picture signal.
REFERENCES:
patent: 4485402 (1984-11-01), Searby
patent: 4982285 (1991-01-01), Sugiyama
patent: 4985768 (1991-01-01), Sugiyama
patent: 4999704 (1991-03-01), Ando
Kostak Victor R.
Meller Michael N.
Victor Company of Japan Ltd.
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