Predictive encoding

Details Predictive encoding Predictive encoding

1986-06-27

1988-01-12

Shoop, Jr., William M.

Communications: electrical

Audible indication

Percussion-type sound producer

358136, H03M 736

Patent

active

047194510

ABSTRACT:
A predictive encoding arrangement for use in a video digital imaging system wherein sequences of codewords are produced by a video signal source corresponding to sequential elements of a video picture, codewords for any given picture element being successively produced in successive picture periods. Codewords for the N picture elements of each picture period are stored in a picture memory. An encoder encodes the difference between codewords supplied by the video signal source and codewords read out from the memory, the encoded codewords than being decoded by a decoder and supplied to the memory for storage therein. A cyclic address counter operating at the codeword rate cyclically generates N-K memory addresses for storage of codewords in the memory, wherein N>K and K is the number of codeword periods for the encoder and decoder to produce a decoded codeword in response to a codeword from the video signal source.

REFERENCES:
patent: 3553361 (1971-01-01), Mounts
patent: 3937878 (1976-02-01), Judice
patent: 4492983 (1985-01-01), Yoshida et al.

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