Encoding and decoding a media signal with high and low...

Details Encoding and decoding a media signal with high and low... Encoding and decoding a media signal with high and low...

2006-09-19

2006-09-19

Wamsley, Patrick (Department: 2819)

Coded data generation or conversion

Digital code to digital code converters

Adaptive coding

C380S210000, C713S176000

Reexamination Certificate

active

07109894

ABSTRACT:
The invention discloses a method of embedding information for high quality restoration of a media signal (typically an audio-visual signal) in a lower quality version of the signal. To this end, the signal x is encoded using a high quality encoder (Q2). The code sequences z produced by the high quality encoder are mapped into code sequences y that are associated with a hypothetical lower quality encoder (Q1). The latter code sequences y are transmitted. A simple decoder will decode the received sequences y, and thus reproduce a low quality version of the signal. A more sophisticated decoder is arranged to inversely map the received code sequences y into the code sequences z, that were actually produced by the high quality encoder (Q2). The sophisticated decoder will thus reproduce a higher quality version of the same signal.

REFERENCES:
patent: 4745474 (1988-05-01), Schiff
patent: 5173900 (1992-12-01), Miller et al.
patent: 5253058 (1993-10-01), Gharavi
patent: 5287374 (1994-02-01), Parr
patent: 5446371 (1995-08-01), Eccleston et al.
patent: 5459514 (1995-10-01), Sakamoto et al.
patent: 5487128 (1996-01-01), Ozawa
patent: 5557318 (1996-09-01), Gabri el
patent: 5589993 (1996-12-01), Naimpally
patent: 5751856 (1998-05-01), Hirabayashi
patent: 6091855 (2000-07-01), Hosaka et al.
patent: 6141299 (2000-10-01), Utsumi
patent: 6289455 (2001-09-01), Kocher et al.
patent: 6850021 (2005-02-01), Golownia et al.
patent: 6865291 (2005-03-01), Zador
patent: 6944160 (2005-09-01), Weiss et al.
patent: 6952443 (2005-10-01), Kong et al.
patent: 7016409 (2006-03-01), Unger

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