CA2003755A1 - Appareil d'expansion de signaux audio - Google Patents

Appareil d'expansion de signaux audio

Info

Publication number
CA2003755A1
CA2003755A1 CA2003755A CA2003755A CA2003755A1 CA 2003755 A1 CA2003755 A1 CA 2003755A1 CA 2003755 A CA2003755 A CA 2003755A CA 2003755 A CA2003755 A CA 2003755A CA 2003755 A1 CA2003755 A1 CA 2003755A1
Authority
CA
Canada
Prior art keywords
audio signal
expander apparatus
output
signal expander
frequency
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
CA2003755A
Other languages
English (en)
Other versions
CA2003755C (fr
Inventor
Gary Rogalski
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.)
VIDEO TECHNOLOGY ENGINEERING Ltd
Original Assignee
VIDEO TECHNOLOGY ENGINEERING 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 VIDEO TECHNOLOGY ENGINEERING Ltd filed Critical VIDEO TECHNOLOGY ENGINEERING Ltd
Priority to CA002003755A priority Critical patent/CA2003755C/fr
Priority to GB9025468A priority patent/GB2238436B/en
Publication of CA2003755A1 publication Critical patent/CA2003755A1/fr
Priority to US07/852,920 priority patent/US5159636A/en
Application granted granted Critical
Publication of CA2003755C publication Critical patent/CA2003755C/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G7/00—Volume compression or expansion in amplifiers
    • H03G7/002—Volume compression or expansion in amplifiers in untuned or low-frequency amplifiers, e.g. audio amplifiers

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
  • Amplifiers (AREA)
CA002003755A 1989-11-23 1989-11-23 Appareil d'expansion de signaux audio Expired - Lifetime CA2003755C (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CA002003755A CA2003755C (fr) 1989-11-23 1989-11-23 Appareil d'expansion de signaux audio
GB9025468A GB2238436B (en) 1989-11-23 1990-11-22 Audio signal expander apparatus
US07/852,920 US5159636A (en) 1989-11-23 1992-03-13 Audio signal expander apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA002003755A CA2003755C (fr) 1989-11-23 1989-11-23 Appareil d'expansion de signaux audio

Publications (2)

Publication Number Publication Date
CA2003755A1 true CA2003755A1 (fr) 1991-05-23
CA2003755C CA2003755C (fr) 2000-02-15

Family

ID=4143621

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002003755A Expired - Lifetime CA2003755C (fr) 1989-11-23 1989-11-23 Appareil d'expansion de signaux audio

Country Status (3)

Country Link
US (1) US5159636A (fr)
CA (1) CA2003755C (fr)
GB (1) GB2238436B (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5920842A (en) * 1994-10-12 1999-07-06 Pixel Instruments Signal synchronization
KR100211830B1 (ko) * 1995-03-16 1999-08-02 윤종용 미니디스크의 적응변환 오디오 코딩회로
JP2002169597A (ja) * 2000-09-05 2002-06-14 Victor Co Of Japan Ltd 音声信号処理装置、音声信号処理方法、音声信号処理のプログラム、及び、そのプログラムを記録した記録媒体
JP2003078279A (ja) * 2001-09-04 2003-03-14 Konica Corp プリント基板のシールド方法及びその方法を用いたプリント基板が装着された装置
TWI558098B (zh) * 2014-09-01 2016-11-11 絡達科技股份有限公司 具有抑制射頻訊號干擾功能的音頻放大裝置
US10885896B2 (en) * 2018-05-18 2021-01-05 Bose Corporation Real-time detection of feedforward instability

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL6612386A (fr) * 1966-09-02 1968-03-04
FR1551879A (fr) * 1967-06-14 1969-01-03
GB1401336A (en) * 1971-10-05 1975-07-16 Victor Company Of Japan Expander circuit for a compression and expansion system
US4631746A (en) * 1983-02-14 1986-12-23 Wang Laboratories, Inc. Compression and expansion of digitized voice signals

Also Published As

Publication number Publication date
GB9025468D0 (en) 1991-01-09
CA2003755C (fr) 2000-02-15
US5159636A (en) 1992-10-27
GB2238436A (en) 1991-05-29
GB2238436B (en) 1994-02-02

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Legal Events

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