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ATE145775T1 - Verfahren und einrichtung zur digitalsignalverarbeitung - Google Patents

Verfahren und einrichtung zur digitalsignalverarbeitung

Info

Publication number
ATE145775T1
ATE145775T1 AT89301943T AT89301943T ATE145775T1 AT E145775 T1 ATE145775 T1 AT E145775T1 AT 89301943 T AT89301943 T AT 89301943T AT 89301943 T AT89301943 T AT 89301943T AT E145775 T1 ATE145775 T1 AT E145775T1
Authority
AT
Austria
Prior art keywords
requantizer
signal
predictive
predictive filter
requantizing
Prior art date
Application number
AT89301943T
Other languages
English (en)
Inventor
Naoto Iwahashi
Kenzo Akagiri
Hiromi Setoguchi
Original Assignee
Sony 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
Priority claimed from JP63046595A external-priority patent/JP2699382B2/ja
Priority claimed from JP63061724A external-priority patent/JP2699387B2/ja
Application filed by Sony Corp filed Critical Sony Corp
Application granted granted Critical
Publication of ATE145775T1 publication Critical patent/ATE145775T1/de

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Numerical Control (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Communication Control (AREA)
AT89301943T 1988-02-29 1989-02-27 Verfahren und einrichtung zur digitalsignalverarbeitung ATE145775T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP63046595A JP2699382B2 (ja) 1988-02-29 1988-02-29 ノイズシエーピング方法
JP63061724A JP2699387B2 (ja) 1988-03-14 1988-03-14 デイジタル信号処理方法

Publications (1)

Publication Number Publication Date
ATE145775T1 true ATE145775T1 (de) 1996-12-15

Family

ID=26386694

Family Applications (1)

Application Number Title Priority Date Filing Date
AT89301943T ATE145775T1 (de) 1988-02-29 1989-02-27 Verfahren und einrichtung zur digitalsignalverarbeitung

Country Status (5)

Country Link
US (1) US5070515A (de)
EP (1) EP0331405B1 (de)
KR (1) KR0171397B1 (de)
AT (1) ATE145775T1 (de)
DE (1) DE68927483T2 (de)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02309820A (ja) * 1989-05-25 1990-12-25 Sony Corp デイジタル信号処理装置
US5235669A (en) * 1990-06-29 1993-08-10 At&T Laboratories Low-delay code-excited linear-predictive coding of wideband speech at 32 kbits/sec
JPH04150522A (ja) * 1990-10-15 1992-05-25 Sony Corp ディジタル信号処理装置
US5539667A (en) * 1992-09-15 1996-07-23 Gcc Technologies Method and apparatus for improved digital film recorder
CA2126810C (en) * 1993-06-29 2004-10-19 Gen Ichimura Audio signal transmitting apparatus and the method thereof
JPH088845A (ja) * 1994-02-04 1996-01-12 Advanced Micro Devices Inc 集積回路外部のデジタル信号の中間データ処理を選択的に可能化するためのシステム
JP3536996B2 (ja) * 1994-09-13 2004-06-14 ソニー株式会社 パラメータ変換方法及び音声合成方法
US5710790A (en) * 1995-02-01 1998-01-20 Lucent Technologies Inc. Communication arrangement with improved echo and noise suppression in a channel containing quantization
GB9509831D0 (en) * 1995-05-15 1995-07-05 Gerzon Michael A Lossless coding method for waveform data
JP3580444B2 (ja) * 1995-06-14 2004-10-20 ソニー株式会社 信号伝送方法および装置、並びに信号再生方法
US6804299B2 (en) * 2001-06-15 2004-10-12 Microsoft Corporation Methods and systems for reducing requantization-originated generational error in predictive video streams using motion compensation
US7324598B2 (en) * 2002-07-15 2008-01-29 Intel Corporation Apparatus and method to reduce quantization error
GB2408858B (en) * 2003-12-05 2006-11-29 Wolfson Ltd Word length reduction circuit
FR2911031B1 (fr) * 2006-12-28 2009-04-10 Actimagine Soc Par Actions Sim Procede et dispositif de codage audio
BRPI0813178B1 (pt) 2007-06-15 2020-05-12 France Telecom Processo de codificação de um sinal de áudio de entrada, processo de decodificação escalável de um sinal de áudio, codificador de sinal de áudio de entrada, e codificador de um sinal de áudio
JP4577590B2 (ja) * 2008-10-22 2010-11-10 ソニー株式会社 画像処理装置、画像処理方法、及び、プログラム

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4133976A (en) * 1978-04-07 1979-01-09 Bell Telephone Laboratories, Incorporated Predictive speech signal coding with reduced noise effects
US4354273A (en) * 1979-06-12 1982-10-12 Nippon Electric Company, Ltd. ADPCM System for speech or like signals
US4437087A (en) * 1982-01-27 1984-03-13 Bell Telephone Laboratories, Incorporated Adaptive differential PCM coding
US4475227A (en) * 1982-04-14 1984-10-02 At&T Bell Laboratories Adaptive prediction
US4571737A (en) * 1982-12-10 1986-02-18 Nec Corporation Adaptive differential pulse code modulation decoding circuit
JPS60237738A (ja) * 1984-05-11 1985-11-26 Sony Corp デイジタル信号伝送装置
JPH061904B2 (ja) * 1984-12-29 1994-01-05 ソニー株式会社 信号伝送装置
US4686512A (en) * 1985-03-01 1987-08-11 Kabushiki Kaisha Toshiba Integrated digital circuit for processing speech signal
US4677423A (en) * 1986-01-06 1987-06-30 American Telephone & Telegraph, At&T Bell Laboratories ADPCM coder-decoder including partial band energy transition detection

Also Published As

Publication number Publication date
EP0331405A2 (de) 1989-09-06
DE68927483D1 (de) 1997-01-09
DE68927483T2 (de) 1997-04-03
EP0331405A3 (de) 1992-04-15
KR890013877A (ko) 1989-09-26
US5070515A (en) 1991-12-03
KR0171397B1 (ko) 1999-03-30
EP0331405B1 (de) 1996-11-27

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Legal Events

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