Title:
CODING METHOD AND CODER, DECODER AND RECORDING MEDIUM
Document Type and Number:
Japanese Patent JP3397001
Kind Code:
B2
Abstract:
PURPOSE: To realize a high degree compression of a multi-channel signal by processing a digital signal of a part of channel as a common signal and applying coding processing to the signal.
CONSTITUTION: Audio data of each channel of a center C, a left L, a right R, a left surround SL and a right surround SR from input terminals 101a-101e are given to a common processing analyzer 102. An output of the analyzer 102 is given to extracted devices 103a-103e of corresponding channels and a common component is extracted from the original audio data for each channel and only the remaining components are fed to coders 105a-105e. An output of the analyzer 102 is fed also to a common data generator 104, in which common data of each channel are collected and rearranged and then the result is outputted. Each coder 105 gives common processing parameter information to a multiplexer 106 together with the coding data and the data are multiplexed into one-bit-stream.
Inventors:
Masatoshi Ueno
Shinji Miyamori
Shinji Miyamori
Application Number:
JP13411795A
Publication Date:
April 14, 2003
Filing Date:
May 31, 1995
Export Citation:
Assignee:
ソニー株式会社
International Classes:
G11B20/10; G10L19/00; G10L19/008; G10L19/02; H03H17/02; H03M7/30; (IPC1-7): H03M7/30; G10L19/00; G10L19/02; G11B20/10; H03H17/02
Domestic Patent References:
| JP6149292A | ||||
| JP63182700A | ||||
| JP7283738A | ||||
| JP7123008A |
Attorney, Agent or Firm:
Akira Koike (2 outside)
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