DE68925552D1 - Kodierer mit veränderlicher Datenrate - Google Patents

Kodierer mit veränderlicher Datenrate

Info

Publication number
DE68925552D1
DE68925552D1 DE68925552T DE68925552T DE68925552D1 DE 68925552 D1 DE68925552 D1 DE 68925552D1 DE 68925552 T DE68925552 T DE 68925552T DE 68925552 T DE68925552 T DE 68925552T DE 68925552 D1 DE68925552 D1 DE 68925552D1
Authority
DE
Germany
Prior art keywords
data rate
variable data
rate encoder
encoder
variable
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 - Fee Related
Application number
DE68925552T
Other languages
English (en)
Other versions
DE68925552T2 (de
Inventor
Yoshihiro Tomita
Kohei Iseda
Shigeyuki Unagami
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.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
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 Fujitsu Ltd filed Critical Fujitsu Ltd
Publication of DE68925552D1 publication Critical patent/DE68925552D1/de
Application granted granted Critical
Publication of DE68925552T2 publication Critical patent/DE68925552T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B14/00—Transmission systems not characterised by the medium used for transmission
    • H04B14/02—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation
    • H04B14/04—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation using pulse code modulation
    • H04B14/046—Systems or methods for reducing noise or bandwidth
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/134—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
    • H04N19/154—Measured or subjectively estimated visual quality after decoding, e.g. measurement of distortion
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/30—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using hierarchical techniques, e.g. scalability
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Multimedia (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
DE68925552T 1988-09-26 1989-09-26 Kodierer mit veränderlicher Datenrate Expired - Fee Related DE68925552T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23886988A JPH0783315B2 (ja) 1988-09-26 1988-09-26 可変レート音声信号符号化方式

Publications (2)

Publication Number Publication Date
DE68925552D1 true DE68925552D1 (de) 1996-03-14
DE68925552T2 DE68925552T2 (de) 1996-07-04

Family

ID=17036466

Family Applications (1)

Application Number Title Priority Date Filing Date
DE68925552T Expired - Fee Related DE68925552T2 (de) 1988-09-26 1989-09-26 Kodierer mit veränderlicher Datenrate

Country Status (5)

Country Link
US (1) US5159611A (de)
EP (2) EP0631402A3 (de)
JP (1) JPH0783315B2 (de)
CA (1) CA1324672C (de)
DE (1) DE68925552T2 (de)

Families Citing this family (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5115240A (en) * 1989-09-26 1992-05-19 Sony Corporation Method and apparatus for encoding voice signals divided into a plurality of frequency bands
ZA921988B (en) * 1991-03-29 1993-02-24 Sony Corp High efficiency digital data encoding and decoding apparatus
CA2483322C (en) * 1991-06-11 2008-09-23 Qualcomm Incorporated Error masking in a variable rate vocoder
GB2257606B (en) * 1991-06-28 1995-01-18 Sony Corp Recording and/or reproducing apparatuses and signal processing methods for compressed data
JPH05327935A (ja) * 1992-05-25 1993-12-10 Canon Inc マルチメディア通信装置
JP3153933B2 (ja) * 1992-06-16 2001-04-09 ソニー株式会社 データ符号化装置及び方法並びにデータ復号化装置及び方法
JP3186292B2 (ja) * 1993-02-02 2001-07-11 ソニー株式会社 高能率符号化方法及び装置
JP3186307B2 (ja) * 1993-03-09 2001-07-11 ソニー株式会社 圧縮データ記録装置及び方法
US5581654A (en) * 1993-05-25 1996-12-03 Sony Corporation Method and apparatus for information encoding and decoding
US5353303A (en) * 1993-10-04 1994-10-04 The United States Of America As Represented By The Secretary Of The Air Force Technique for increasing the data rate in a spread spectrum data link
US5790781A (en) * 1993-12-08 1998-08-04 Intel Corporation Dynamic scaling of CPU cycle consumption in an I/O subsystem of a computer system
US5608713A (en) * 1994-02-09 1997-03-04 Sony Corporation Bit allocation of digital audio signal blocks by non-linear processing
JP3186412B2 (ja) * 1994-04-01 2001-07-11 ソニー株式会社 情報符号化方法、情報復号化方法、及び情報伝送方法
JP3277699B2 (ja) * 1994-06-13 2002-04-22 ソニー株式会社 信号符号化方法及び装置並びに信号復号化方法及び装置
JP3277705B2 (ja) 1994-07-27 2002-04-22 ソニー株式会社 情報符号化装置及び方法、並びに情報復号化装置及び方法
JP3341474B2 (ja) * 1994-07-28 2002-11-05 ソニー株式会社 情報符号化方法及び復号化方法、情報符号化装置及び復号化装置、並びに情報記録媒体
US5742734A (en) * 1994-08-10 1998-04-21 Qualcomm Incorporated Encoding rate selection in a variable rate vocoder
DE4443575C1 (de) * 1994-12-07 1996-09-26 Deutsche Telekom Mobil Verfahren zur Übertragung von codierten Sprachsignalen in mindestens einem Telekommunikationsnetz
JP3557674B2 (ja) * 1994-12-15 2004-08-25 ソニー株式会社 高能率符号化方法及び装置
JP3013876B2 (ja) * 1995-01-31 2000-02-28 日本ビクター株式会社 変換符号化装置
JPH08263099A (ja) * 1995-03-23 1996-10-11 Toshiba Corp 符号化装置
US5956674A (en) * 1995-12-01 1999-09-21 Digital Theater Systems, Inc. Multi-channel predictive subband audio coder using psychoacoustic adaptive bit allocation in frequency, time and over the multiple channels
SE9601606D0 (sv) * 1996-04-26 1996-04-26 Ericsson Telefon Ab L M Sätt vid radiotelekommunikationssystem
US5751901A (en) * 1996-07-31 1998-05-12 Qualcomm Incorporated Method for searching an excitation codebook in a code excited linear prediction (CELP) coder
JP3215053B2 (ja) * 1996-09-11 2001-10-02 富士通株式会社 移動通信装置
US6826524B1 (en) 1998-01-08 2004-11-30 Purdue Research Foundation Sample-adaptive product quantization
US6581032B1 (en) * 1999-09-22 2003-06-17 Conexant Systems, Inc. Bitstream protocol for transmission of encoded voice signals
US6625226B1 (en) * 1999-12-03 2003-09-23 Allen Gersho Variable bit rate coder, and associated method, for a communication station operable in a communication system
FR2803476B1 (fr) * 1999-12-31 2003-01-10 Cit Alcatel Procede d'etablissement de mode de fonctionnement sans double transcodage dans un systeme cellulaire de radiocommunications mobiles
US6564182B1 (en) 2000-05-12 2003-05-13 Conexant Systems, Inc. Look-ahead pitch determination
US6954745B2 (en) 2000-06-02 2005-10-11 Canon Kabushiki Kaisha Signal processing system
US7010483B2 (en) 2000-06-02 2006-03-07 Canon Kabushiki Kaisha Speech processing system
US7072833B2 (en) 2000-06-02 2006-07-04 Canon Kabushiki Kaisha Speech processing system
US7035790B2 (en) 2000-06-02 2006-04-25 Canon Kabushiki Kaisha Speech processing system
GB2364843A (en) * 2000-07-14 2002-02-06 Sony Uk Ltd Data encoding based on data quantity and data quality
US20020118799A1 (en) * 2001-02-28 2002-08-29 Detlef Michael J. Telephone answering device with enhanced voice quality
US6785334B2 (en) * 2001-08-15 2004-08-31 Koninklijke Philips Electronics N.V. Method for transmission control in hybrid temporal-SNR fine granular video coding
EP1989707A2 (de) * 2006-02-24 2008-11-12 France Telecom Verfahren zur binären kodierung von quantifizierungsindizes einer signalhüllkurve; verfahren zur dekodierung einer signalhüllkurve und entsprechende kodier- und dekodiermodule
JP4900192B2 (ja) * 2007-10-22 2012-03-21 沖電気工業株式会社 符号分割多重送受信装置及び符号分割多重送受信方法

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60251733A (ja) * 1984-05-28 1985-12-12 Sony Corp デイジタル信号伝送装置
US4797902A (en) * 1984-12-29 1989-01-10 Sony Corporation Digital signal transmission device
US4751736A (en) * 1985-01-31 1988-06-14 Communications Satellite Corporation Variable bit rate speech codec with backward-type prediction and quantization
JPS61198941A (ja) * 1985-02-28 1986-09-03 Fujitsu Ltd 転送速度可変形音声デ−タ多重方式
CA1292071C (en) * 1985-06-28 1991-11-12 Tomohiko Taniguchi Coding transmission equipment for carrying out coding with adaptive quantization
JPS6315559A (ja) * 1986-07-08 1988-01-22 Toshiba Corp 電子会議システム
JPS6319951A (ja) * 1986-07-14 1988-01-27 Nippon Telegr & Teleph Corp <Ntt> 音声信号およびデ−タ信号の併合伝送方法およびその送信装置ならびに受信装置
US4748625A (en) * 1986-07-28 1988-05-31 Motorola, Inc. Optimum baud rate transmission system
JPH0748696B2 (ja) * 1986-08-29 1995-05-24 富士通株式会社 音声符号化方式
JPS63240141A (ja) * 1987-03-27 1988-10-05 Toshiba Corp 多重化装置の制御情報伝送方式
JPS63289600A (ja) * 1987-05-21 1988-11-28 日本電信電話株式会社 音声符号化方式
EP0314018B1 (de) * 1987-10-30 1993-09-01 Nippon Telegraph And Telephone Corporation Verfahren und Vorrichtung für multiplexierte Vektorquantifizierung
US4979188A (en) * 1988-04-29 1990-12-18 Motorola, Inc. Spectrally efficient method for communicating an information signal

Also Published As

Publication number Publication date
US5159611A (en) 1992-10-27
EP0361384A3 (de) 1992-04-01
EP0361384B1 (de) 1996-01-31
EP0631402A3 (de) 1995-03-01
JPH0783315B2 (ja) 1995-09-06
JPH0287731A (ja) 1990-03-28
CA1324672C (en) 1993-11-23
EP0631402A2 (de) 1994-12-28
EP0361384A2 (de) 1990-04-04
DE68925552T2 (de) 1996-07-04

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee