Encoder and decoder

Details Encoder and decoder Encoder and decoder

1998-06-09

1999-11-23

Tung, Bryan

Television

Bandwidth reduction system

Data rate reduction

348423, 348466, 3488451, 370471, 371 21, 375246, 375253, H04N 736, H04N 750

Patent

active

059909633

ABSTRACT:
An encoder which counts the length of a data produced by the variable-length encoding, and time-division-multiplexes information of the data length to the variable-length encoded data. An encoder which time-division-multiplexes information of the number of bits after a fixed partition used in the error-correction encoding to the initial bit of a variable-length code to a variable-length encoded data, and transmits them. An encoder which, when a variable-length code for one symbol of the variable-length encoding extends over a partition used in the error-correction encoding, inserts a special code before the partition, or guarantees that the top of the partition is always at the top of the variable-length code. An encoder which obtains the sum of fields and the difference between fields, and performs on these values the orthogonal transform to encode them.

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Paper entitled "Criteria for the Protection of the Video Information in a Codec Based on DCT"; Signal Processing of HDTV, II; Proceedings of the Third International Workshop on HDTV, Turin Italy (Aug. 30, 1989-Sep. 1, 1989); pp. 769-776.
"Information Technology--Coding of moving pictures and associated audio for digital storage media at up to about 1, 5 Mbit/s" Part 2: Video; International Standard; ISO/IEC 11172-2; 1993; pp. 1-38.
Nikkei Electronics; Oct. 15, 1990; Unix; pp. 116-147.
"A Consideration on Filters in the Coding Loop of Hybrid MC/DCT Coding Scheme"; IE86-100, Feb. 26, 1987; pp. 17-23.

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