Title:
METHOD AND DEVICE FOR ENCODING SIGNAL, METHOD AND DEVICE FOR DECODING SIGNAL, RECORDING MEDIUM, AND SIGNAL TRANSMITTING DEVICE
Document Type and Number:
WIPO Patent Application WO/1995/034956
Kind Code:
A1
Abstract:
In a method and device for signal encoding according to this invention, a first encoder (124) separately encodes noise components of a plurality of channels and a second encoder (125) commonly encodes noise components of a plurality of channels. Then a discriminating means (123) detects the characteristics of the noise components and selects the output from either of the encoders (124 and 125) based on the discriminated results. When the noise components are commonly encoded, therefore, the compression ratio of the noise components of a plurality of channels can be increased. When the components are not commonly encoded, on the other hand, undesired effects of common encoding can be prevented.
Inventors:
OIKAWA YOSHIAKI (JP)
TSUTSUI KYOYA (JP)
MIYAMORI SHINJI (JP)
UENO MASATOSHI (JP)
TSUTSUI KYOYA (JP)
MIYAMORI SHINJI (JP)
UENO MASATOSHI (JP)
Application Number:
PCT/JP1995/001172
Publication Date:
December 21, 1995
Filing Date:
June 12, 1995
Export Citation:
Assignee:
SONY CORP (JP)
OIKAWA YOSHIAKI (JP)
TSUTSUI KYOYA (JP)
MIYAMORI SHINJI (JP)
UENO MASATOSHI (JP)
OIKAWA YOSHIAKI (JP)
TSUTSUI KYOYA (JP)
MIYAMORI SHINJI (JP)
UENO MASATOSHI (JP)
International Classes:
G10L19/032; G10L25/00; G11B20/24; H04B1/66; H04H5/00; G11B20/10; (IPC1-7): H03M7/30; G11B20/10; G10L7/04; G10L9/18; H04B14/04
Domestic Patent References:
| WO1995015032A1 | 1995-06-01 | |||
| WO1995013660A1 | 1995-05-18 | |||
| WO1994024666A1 | 1994-10-27 |
Foreign References:
| JPH02202300A | 1990-08-10 |
Other References:
IEICE TRANSACTIONS, Vol. J71-A, No. 2, 25 February 1988 (25.02.88), IEICE p. 443-452.
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