Encoding method and apparatus of digital video signal

Details Encoding method and apparatus of digital video signal Encoding method and apparatus of digital video signal

1994-04-13

1996-07-09

Tran, Thai Q.

Television

Bandwidth reduction system

Data rate reduction

358335, 360 91, H04N 576, H04N 712, H04N 1102, H04N 1104

Patent

active

055349315

ABSTRACT:
A block segmenting circuit block segments a digital video signal. A block encoding circuit encodes the block segmented data. A head H records the encoded data on a tape. A block segmenting circuit varies the start address of each block and detects an error between the original data and the decoded data at each start address. A cumulating circuit camulates the errors for a predetermined time period. A detecting circuit detects the minimum value of the cumulated values. Thus, a block start address with the lowest error is determined. With a block construction defined by the start address, a block segmenting circuit perform block segmentation.

REFERENCES:
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patent: 5068722 (1991-11-01), Sugiyama
patent: 5091782 (1992-02-01), Krause et al.
patent: 5206723 (1993-04-01), Parke
patent: 5428395 (1995-06-01), Jeong
Patent Abstracts Of Japan, vol. 7, No. 23 (P-171) 29 Jan. 1983, JP-A-57 176 577 (Sony Kabushiki Kaisha) 29 Oct. 1982.
Patent Abstracts of Japan, vol. 15, No. 148 (E-1056) 14 April 1991, JP-A-03 024 887 (Sony Corporation).

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