H - Electricity – 03 – M
Patent
H - Electricity
03
M
H03M 7/30 (2006.01) G10L 19/00 (2006.01) G10L 19/14 (2006.01) G11B 20/10 (2006.01) G11B 20/24 (2006.01) H04B 1/66 (2006.01) H04H 5/00 (2006.01)
Patent
CA 2169366
With the signal encoding method and apparatus according to the present invention, noise components of plural channels are encoded individually by a first encoding unit 124, while noise components of plural channels are encoded in common by a second encoding unit 125. A discriminating unit 123 discriminates characteristics of noise components of plural channels. Based upon the results of discrimination, selective switching is made between an output of the first encoding unit 124 and an output of the second encoding unit 125. If the noise components of plural channels are encoded in common, the compression ratio for the noise components of plural channels may be improved. On the other hand, if the noise components of plural channels are not encoded in common, ill effects due to common handling can be prohibited.
Dans un procédé et un dispositif de codage de signaux, un premier codeur (124) code séparément des composantes du bruit d'une pluralité de voies et un second codeur (125) code de manière commune des composantes de bruit d'une pluralité de voies . Ensuite, un dispositif de discrimination (123) détecte les caractéristiques des composantes de bruit et sélectionne les signaux de sortie provenant de l'un ou l'autre des codeurs (124 et 125) sur la base des résultats de discrimination. Lorsque les composantes du bruit sont codées de manière commune, le rapport de compression des composantes de bruit d'une pluralité de voies peut être augmenté. Par contre, lorsque les composantes ne sont pas codées de manière commune, les effets non désirés du codage commun peuvent être évités.
Miyamori Shinji
Oikawa Yoshiaki
Tsutsui Kyoya
Ueno Masatoshi
Gowling Lafleur Henderson Llp
Sony Corporation
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