CDMA無線システム用可変ビットレート広帯域音声符号化時における効率のよい帯域内ディム・アンド・バースト(DIM-AND-BURST)シグナリングとハーフレートマックス処理のための方法および装置

Title:

Document Type and Number:

Japanese Patent JP5173939

Kind Code:

B2

Abstract:

In the method and device for interoperating a first station using a first communication scheme and comprising a first coder and a first decoder with a second station using a second communication scheme and comprising a second coder and a second decoder, communication between the first and second stations is conducted by transmitting signal-coding parameters related to a sound signal from the coder of one of the first and second stations to the decoder of the other station. The sound signal is classified to determine whether the signal-coding parameters should be transmitted from the coder of one station to the decoder of the other station using a first communication mode in which full bit rate is used for transmission of the signal-coding parameters. When classification of the sound signal determines that the signal-coding parameters should be transmitted using the first communication mode and when a request to transmit the signal-coding parameters from the coder of one station to the decoder of the other station using a second communication mode designed to reduce bit rate during transmission of the signal-coding parameters is received, a portion of the signal-coding parameters from the coder one station is dropped and the remaining signal-coding parameters are transmitting to the decoder of the other station using the second communication mode. The dropped portion of the signal-coding parameters are regenerated before the decoder of the other station decodes the signal-coding parameters.

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Inventors:

Gerynek, Milan
Salami, red one

Application Number:

JP2009133079A

Publication Date:

April 03, 2013

Filing Date:

June 02, 2009

Export Citation:

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Assignee:

NOKIA CORPORATION

International Classes:

H04J13/00; G10L19/00; G10L19/12; G10L19/20; G10L19/24; H03M7/30; H04B1/707; H04B7/24; H04B7/26; H04W4/18; H04W88/02

Domestic Patent References:

JP8146997A
JP2002507095A
JP2000081898A

Foreign References:

WO2001052467A1
WO2000048170A1

Attorney, Agent or Firm:

Atsushi Aoki
Jun Tsuruta
Shimichi Akihisa
Kei Mori

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