Data processor and data receiver

Details Data processor and data receiver Data processor and data receiver

1997-10-06

2000-04-18

Britton, Howard

Pulse or digital communications

Bandwidth reduction or expansion

Television or motion video signal

348397, 348402, H04N 732, H04N 730, H04N 712

Patent

active

060524162

ABSTRACT:
A data processor includes a first encoder, a first storage medium, a subtracter, a second encoder, a second storage medium, and an output section. The first encoder generates, by using a predetermined first coding method, a main code prepared by encoding a moving picture signal input as an original signal. The first storage medium stores the main code generated by the first encoder. The subtracter calculates a coding distortion generated upon coding by the first encoder. The second encoder encodes, by using a predetermined second coding method, the coding distortion calculated by the subtracter, thereby generating a compensation code. The second storage medium stores the compensation code generated by the second encoder. The output section outputs the main and compensation codes respectively stored in the first and second storage media.

REFERENCES:
patent: 5349383 (1994-09-01), Parke et al.
patent: 5418571 (1995-05-01), Ghanbari
patent: 5515377 (1996-05-01), Horne et al.
patent: 5742343 (1998-04-01), Haskell et al.
patent: 5852565 (1998-12-01), Demos
patent: 5973739 (1999-10-01), Nilsson
Japanese Office Action dated Nov. 27, Hei 11 with English language translation of Japanese Examiner's comments.
M. Ghanbari; Two-Layer Coding of Video Signals for VBR Networks, IEE Journal on Selected Areas in Communications; Jun. 1989; No. 5, New York.

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