CN1183684C - 数字数据编码装置及其方法 - Google Patents

数字数据编码装置及其方法 Download PDF

Info

Publication number
CN1183684C
CN1183684C CNB021053243A CN02105324A CN1183684C CN 1183684 C CN1183684 C CN 1183684C CN B021053243 A CNB021053243 A CN B021053243A CN 02105324 A CN02105324 A CN 02105324A CN 1183684 C CN1183684 C CN 1183684C
Authority
CN
China
Prior art keywords
data
channel
mentioned
coefficient data
sign
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CNB021053243A
Other languages
English (en)
Chinese (zh)
Other versions
CN1380751A (zh
Inventor
知念彻
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dolby International AB
Dolby Laboratories Licensing Corp
Original Assignee
Nippon Steel Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nippon Steel Corp filed Critical Nippon Steel Corp
Publication of CN1380751A publication Critical patent/CN1380751A/zh
Application granted granted Critical
Publication of CN1183684C publication Critical patent/CN1183684C/zh
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/66—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission
    • H04B1/667—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission using a division in frequency subbands

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
CNB021053243A 1995-08-31 1996-08-30 数字数据编码装置及其方法 Expired - Lifetime CN1183684C (zh)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP246954/1995 1995-08-31
JP246954/95 1995-08-31
JP7246954A JPH0969783A (ja) 1995-08-31 1995-08-31 オーディオデータ符号化装置

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CN96111248A Division CN1112769C (zh) 1995-08-31 1996-08-30 数字数据编码装置及其方法

Publications (2)

Publication Number Publication Date
CN1380751A CN1380751A (zh) 2002-11-20
CN1183684C true CN1183684C (zh) 2005-01-05

Family

ID=17156209

Family Applications (3)

Application Number Title Priority Date Filing Date
CNB021053243A Expired - Lifetime CN1183684C (zh) 1995-08-31 1996-08-30 数字数据编码装置及其方法
CN96111248A Expired - Lifetime CN1112769C (zh) 1995-08-31 1996-08-30 数字数据编码装置及其方法
CNB021053251A Expired - Lifetime CN1173478C (zh) 1995-08-31 2002-02-22 数字数据编码装置及其方法

Family Applications After (2)

Application Number Title Priority Date Filing Date
CN96111248A Expired - Lifetime CN1112769C (zh) 1995-08-31 1996-08-30 数字数据编码装置及其方法
CNB021053251A Expired - Lifetime CN1173478C (zh) 1995-08-31 2002-02-22 数字数据编码装置及其方法

Country Status (4)

Country Link
US (1) US5675610A (https=)
JP (1) JPH0969783A (https=)
CN (3) CN1183684C (https=)
TW (2) TW347623B (https=)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995030286A2 (en) * 1994-05-02 1995-11-09 Philips Electronics N.V. Encoding system and encoding method for encoding a digital signal having at least a first and a second digital signal component
JP3388224B2 (ja) * 2000-06-23 2003-03-17 松下電器産業株式会社 通信端末装置
US7292901B2 (en) 2002-06-24 2007-11-06 Agere Systems Inc. Hybrid multi-channel/cue coding/decoding of audio signals
US7583805B2 (en) 2004-02-12 2009-09-01 Agere Systems Inc. Late reverberation-based synthesis of auditory scenes
US7644003B2 (en) 2001-05-04 2010-01-05 Agere Systems Inc. Cue-based audio coding/decoding
US7460684B2 (en) 2003-06-13 2008-12-02 Nielsen Media Research, Inc. Method and apparatus for embedding watermarks
US7805313B2 (en) 2004-03-04 2010-09-28 Agere Systems Inc. Frequency-based coding of channels in parametric multi-channel coding systems
CN102592638A (zh) * 2004-07-02 2012-07-18 尼尔逊媒介研究股份有限公司 用于进行压缩数字位流的混合的方法及装置
US8204261B2 (en) 2004-10-20 2012-06-19 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Diffuse sound shaping for BCC schemes and the like
US7720230B2 (en) 2004-10-20 2010-05-18 Agere Systems, Inc. Individual channel shaping for BCC schemes and the like
US7787631B2 (en) 2004-11-30 2010-08-31 Agere Systems Inc. Parametric coding of spatial audio with cues based on transmitted channels
JP5017121B2 (ja) 2004-11-30 2012-09-05 アギア システムズ インコーポレーテッド 外部的に供給されるダウンミックスとの空間オーディオのパラメトリック・コーディングの同期化
EP1817767B1 (en) 2004-11-30 2015-11-11 Agere Systems Inc. Parametric coding of spatial audio with object-based side information
US7903824B2 (en) 2005-01-10 2011-03-08 Agere Systems Inc. Compact side information for parametric coding of spatial audio
EP2958106B1 (en) 2006-10-11 2018-07-18 The Nielsen Company (US), LLC Methods and apparatus for embedding codes in compressed audio data streams
US20090099844A1 (en) 2007-10-16 2009-04-16 Qualcomm Incorporated Efficient implementation of analysis and synthesis filterbanks for mpeg aac and mpeg aac eld encoders/decoders
US8527265B2 (en) * 2007-10-22 2013-09-03 Qualcomm Incorporated Low-complexity encoding/decoding of quantized MDCT spectrum in scalable speech and audio codecs
US8396119B1 (en) * 2009-09-30 2013-03-12 Ambarella, Inc. Data sample compression and decompression using randomized quantization bins
CN108170399B (zh) * 2017-12-26 2021-04-30 上海展扬通信技术有限公司 一种双声道处理方法及终端

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0520068B1 (en) * 1991-01-08 1996-05-15 Dolby Laboratories Licensing Corporation Encoder/decoder for multidimensional sound fields
US5596421A (en) * 1993-06-03 1997-01-21 Matsushita Electric Industrial Co., Ltd. Optical disk recorder for video signals and an optical disk for use therein

Also Published As

Publication number Publication date
CN1173478C (zh) 2004-10-27
TW315562B (https=) 1997-09-11
CN1380752A (zh) 2002-11-20
JPH0969783A (ja) 1997-03-11
CN1112769C (zh) 2003-06-25
CN1148292A (zh) 1997-04-23
US5675610A (en) 1997-10-07
TW347623B (en) 1998-12-11
CN1380751A (zh) 2002-11-20

Similar Documents

Publication Publication Date Title
CN1183684C (zh) 数字数据编码装置及其方法
EP2267698B1 (en) Entropy coding by adapting coding between level and run-length/level modes.
CN1099777C (zh) 数字信号的编码装置、解码装置和编码方法
JP5343032B2 (ja) レベル・モードとラン・レングス／レベル・モードの間での符号化を適応させるエントロピー符号化
CN1185795C (zh) 信息字的平均信息量编码设备和方法,平均信息量编码信息字的解码设备和方法
CN1878001A (zh) 对音频数据编码及解码的设备及方法
CN1235190C (zh) 改善音频信号编码效率的方法
CN1155221C (zh) 编码方法及系统以及译码方法及系统
CN1681213A (zh) 无损音频编码/解码方法和装置
CN1299536A (zh) 在无损编码器中边信息的有效编码方法
CN101419713B (zh) 图像处理装置
CN1765153A (zh) 表示多信道信号的主和副信号的编码
CN1193159A (zh) 语音编码译码方法和装置、电话装置、音调变换方法和介质
CN1717577A (zh) 音频信号编码
CN101055720A (zh) 对音频信号编码和解码的方法和设备
CN1114274C (zh) 数字数据编码/解码方法及设备
EP1341314A3 (en) Improved huffman decoding method and apparatus
CN1496127A (zh) 用于译码可变长度编码的装置和方法
HK1045747A1 (en) Using gain-adaptive quantization and non-uniform symbol lengths for audio coding
CN1866355A (zh) 声音编码装置和声音解码装置
CN1822508A (zh) 对数字信号进行编码和解码的方法和设备
EP2203917B1 (en) Fast spectral partitioning for efficient encoding
CN1111960C (zh) 数字数据编码装置及其方法
CN1533036A (zh) 用于编码和/或解码数字数据的方法和装置
CN1504993A (zh) 用较少的计算量重构高频分量的声频解码方法和装置

Legal Events

Date Code Title Description
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
ASS Succession or assignment of patent right

Owner name: UNION ELEMENT CO., LTD.

Free format text: FORMER OWNER: NIPPON STEEL CORP.

Effective date: 20100122

C41 Transfer of patent application or patent right or utility model
TR01 Transfer of patent right

Effective date of registration: 20100122

Address after: American California

Patentee after: Joint component Limited by Share Ltd.

Address before: Tokyo, Japan

Patentee before: NIPPON STEEL Corp.

ASS Succession or assignment of patent right

Owner name: DOLBY INTERNATIONAL CO., LTD.

Free format text: FORMER OWNER: DOLBY LAB LICENSING CORP.

Effective date: 20101130

Owner name: DOLBY LAB LICENSING CORP.

Free format text: FORMER OWNER: JOINT ELECTRON DEVICE INC.

Effective date: 20101130

C41 Transfer of patent application or patent right or utility model
COR Change of bibliographic data

Free format text: CORRECT: ADDRESS; FROM: CALIFORNIA, USA TO: AMSTERDAM, NETHERLANDS

Free format text: CORRECT: ADDRESS; FROM: UNITED STATES CALIFORNIA TO: CALIFORNIA, USA

TR01 Transfer of patent right

Effective date of registration: 20101130

Address after: Amsterdam, The Netherlands

Patentee after: DOLBY INTERNATIONAL AB

Address before: American California

Patentee before: DOLBY LABORATORIES LICENSING Corp.

Effective date of registration: 20101130

Address after: American California

Patentee after: DOLBY LABORATORIES LICENSING Corp.

Address before: California, USA

Patentee before: Joint component Limited by Share Ltd.

CX01 Expiry of patent term

Granted publication date: 20050105

EXPY Termination of patent right or utility model