CA2044817A1 - Methode et dispositif de traitement de signaux numeriques - Google Patents

Methode et dispositif de traitement de signaux numeriques

Info

Publication number
CA2044817A1
CA2044817A1 CA2044817A CA2044817A CA2044817A1 CA 2044817 A1 CA2044817 A1 CA 2044817A1 CA 2044817 A CA2044817 A CA 2044817A CA 2044817 A CA2044817 A CA 2044817A CA 2044817 A1 CA2044817 A1 CA 2044817A1
Authority
CA
Canada
Prior art keywords
signal
amplitude
processing
analog
reference voltage
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.)
Granted
Application number
CA2044817A
Other languages
English (en)
Other versions
CA2044817C (fr
Inventor
Paul Wilkinson Dent
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.)
Ericsson Inc
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2044817A1 publication Critical patent/CA2044817A1/fr
Application granted granted Critical
Publication of CA2044817C publication Critical patent/CA2044817C/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

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
    • H04B1/62—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 providing a predistortion of the signal in the transmitter and corresponding correction in the receiver, e.g. for improving the signal/noise ratio
    • H04B1/64—Volume compression or expansion arrangements
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M3/00—Conversion of analogue values to or from differential modulation
    • H03M3/02—Delta modulation, i.e. one-bit differential modulation
    • H03M3/022—Delta modulation, i.e. one-bit differential modulation with adaptable step size, e.g. adaptive delta modulation [ADM]

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Theoretical Computer Science (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Analogue/Digital Conversion (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
CA002044817A 1990-06-26 1991-06-17 Methode et dispositif de traitement de signaux numeriques Expired - Fee Related CA2044817C (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE9002254A SE465144B (sv) 1990-06-26 1990-06-26 Saett och anordning foer behandling av en analog signal
SE9002254-2 1990-06-26
SG171894A SG171894G (en) 1990-06-26 1994-12-03 A method and device for processing an analog signal

Publications (2)

Publication Number Publication Date
CA2044817A1 true CA2044817A1 (fr) 1991-12-27
CA2044817C CA2044817C (fr) 2000-03-07

Family

ID=26660807

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002044817A Expired - Fee Related CA2044817C (fr) 1990-06-26 1991-06-17 Methode et dispositif de traitement de signaux numeriques

Country Status (17)

Country Link
US (1) US5276764A (fr)
EP (1) EP0463656B1 (fr)
JP (1) JPH0750535A (fr)
CN (1) CN1028826C (fr)
AU (1) AU647797B2 (fr)
CA (1) CA2044817C (fr)
DE (1) DE69103346T2 (fr)
DK (1) DK0463656T3 (fr)
ES (1) ES2057736T3 (fr)
FI (1) FI105621B (fr)
HK (1) HK9595A (fr)
IE (1) IE66907B1 (fr)
NO (1) NO176740C (fr)
NZ (1) NZ238314A (fr)
PT (1) PT98103B (fr)
SE (1) SE465144B (fr)
SG (1) SG171894G (fr)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0583492B1 (fr) * 1992-07-31 1998-11-25 Aphex Systems, Ltd. Dispositif pour augmenter les basses fréquences dans un signal audio
KR0170259B1 (ko) * 1993-07-26 1999-03-30 김광호 신호처리방법 및 장치
US5796359A (en) * 1995-10-25 1998-08-18 Norand Corporation Data conversion and processing system
GB9601885D0 (en) * 1996-01-31 1996-04-03 Wolfson Ltd Compandors
US6269338B1 (en) * 1996-10-10 2001-07-31 U.S. Philips Corporation Data compression and expansion of an audio signal
ATE310307T1 (de) * 1996-11-07 2005-12-15 Koninkl Philips Electronics Nv Datenverarbeitung von einem bitstromsignal
US6148086A (en) * 1997-05-16 2000-11-14 Aureal Semiconductor, Inc. Method and apparatus for replacing a voice with an original lead singer's voice on a karaoke machine
US7489790B2 (en) * 2000-12-05 2009-02-10 Ami Semiconductor, Inc. Digital automatic gain control
US6452524B1 (en) 2001-02-08 2002-09-17 Ericsson Inc. Delta sigma converter incorporating a multiplier
SG114498A1 (en) * 2001-08-31 2005-09-28 Univ Nanyang Method and apparatus for generating directional sound using an ultrasonic carrier wave
SG113393A1 (en) * 2001-08-31 2005-08-29 Univ Nanyang Method and apparatus for enhancing the sound quality of an ultrasonic loudspeaker system
US20040062362A1 (en) * 2002-09-18 2004-04-01 Yasuyuki Matsuya Data communication method, data transmitting apparatus, data receiving apparatus, and data transmission program
GB0414420D0 (en) * 2004-06-28 2004-07-28 Cambridge Silicon Radio Ltd Speech activity detection
US7685493B2 (en) * 2006-09-29 2010-03-23 Agere Systems Inc. Buffer compression in automatic retransmission request (ARQ) systems
CN106248125B (zh) * 2016-08-30 2019-02-05 浙江西子富沃德电机有限公司 一种带信号质量自检测功能的正余弦光电编码器
US10531099B2 (en) * 2016-09-30 2020-01-07 The Mitre Corporation Systems and methods for distributed quantization of multimodal images

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2967992A (en) * 1954-06-15 1961-01-10 Philips Corp Signal expansion device
DE1912218A1 (de) * 1968-05-17 1969-10-02 Ames Automobielbedrijf N V Schlafstelle fuer Automobile
US3949299A (en) * 1974-11-05 1976-04-06 North Electric Company Signal coding for telephone communication system
SU919098A1 (ru) * 1980-01-10 1982-04-07 Предприятие П/Я Г-4488 Устройство сжати динамического диапазона речевых сигналов
JPS57146297A (en) * 1981-03-04 1982-09-09 Nippon Electric Co Voice processor
US4493091A (en) * 1982-05-05 1985-01-08 Dolby Laboratories Licensing Corporation Analog and digital signal apparatus
JPS6046139A (ja) * 1983-08-24 1985-03-12 Nippon Telegr & Teleph Corp <Ntt> コンパンダ回路
GB8804811D0 (en) * 1988-03-01 1988-03-30 Shaye Communications Ltd Waveform encoder/decoder
US5079550A (en) * 1989-10-27 1992-01-07 Crystal Semiconductor Corporation Combining continuous time and discrete time signal processing in a delta-sigma modulator
DE69127491T2 (de) * 1990-04-05 1998-01-08 Matsushita Electric Industrial Co., Ltd., Kadoma, Osaka Digitaler Requantifizierer unter Verwendung von mehrstufigen Rauschformern

Also Published As

Publication number Publication date
EP0463656A1 (fr) 1992-01-02
NZ238314A (en) 1993-09-27
IE66907B1 (en) 1996-02-07
HK9595A (en) 1995-01-27
NO176740C (no) 1995-05-16
FI913099A0 (fi) 1991-06-25
PT98103A (pt) 1993-08-31
NO912483D0 (no) 1991-06-25
DE69103346T2 (de) 1995-02-16
IE912097A1 (en) 1992-01-01
EP0463656B1 (fr) 1994-08-10
NO176740B (no) 1995-02-06
JPH0750535A (ja) 1995-02-21
SG171894G (en) 1995-06-16
SE465144B (sv) 1991-07-29
US5276764A (en) 1994-01-04
DE69103346D1 (de) 1994-09-15
NO912483L (no) 1991-12-27
ES2057736T3 (es) 1994-10-16
FI913099A (fi) 1991-12-27
DK0463656T3 (da) 1994-10-03
PT98103B (pt) 1999-02-26
CN1028826C (zh) 1995-06-07
CA2044817C (fr) 2000-03-07
AU7924991A (en) 1992-01-02
AU647797B2 (en) 1994-03-31
FI105621B (fi) 2000-09-15
CN1057742A (zh) 1992-01-08
SE9002254D0 (sv) 1990-06-26

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