GB2197567B - Signal processing system - Google Patents

Signal processing system

Info

Publication number
GB2197567B
GB2197567B GB8723771A GB8723771A GB2197567B GB 2197567 B GB2197567 B GB 2197567B GB 8723771 A GB8723771 A GB 8723771A GB 8723771 A GB8723771 A GB 8723771A GB 2197567 B GB2197567 B GB 2197567B
Authority
GB
United Kingdom
Prior art keywords
signal processing
processing system
signal
processing
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
GB8723771A
Other languages
English (en)
Other versions
GB8723771D0 (en
GB2197567A (en
Inventor
Masanori Kojima
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of GB8723771D0 publication Critical patent/GB8723771D0/en
Publication of GB2197567A publication Critical patent/GB2197567A/en
Application granted granted Critical
Publication of GB2197567B publication Critical patent/GB2197567B/en
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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G9/00—Combinations of two or more types of control, e.g. gain control and tone control
    • H03G9/02—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers
    • H03G9/025—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers frequency-dependent volume compression or expansion, e.g. multiple-band systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
  • Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
GB8723771A 1986-10-13 1987-10-09 Signal processing system Expired - Lifetime GB2197567B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP61243607A JPS6397021A (ja) 1986-10-13 1986-10-13 圧縮装置

Publications (3)

Publication Number Publication Date
GB8723771D0 GB8723771D0 (en) 1987-11-11
GB2197567A GB2197567A (en) 1988-05-18
GB2197567B true GB2197567B (en) 1990-10-31

Family

ID=17106328

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8723771A Expired - Lifetime GB2197567B (en) 1986-10-13 1987-10-09 Signal processing system

Country Status (4)

Country Link
US (1) US4862118A (OSRAM)
JP (1) JPS6397021A (OSRAM)
DE (1) DE3734664A1 (OSRAM)
GB (1) GB2197567B (OSRAM)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5473279A (en) * 1993-02-17 1995-12-05 Dallas Semiconductor Corporation Integrated compander amplifier circuit with digitally controlled gain
CN1072359C (zh) * 1993-11-09 2001-10-03 摩托罗拉公司 检测输入信号电平的方法和装置
RU2154899C1 (ru) * 1999-01-29 2000-08-20 Атнашев Анатолий Борисович Способ формирования и сжатия импульсного радиосигнала
US6882603B2 (en) * 2001-01-25 2005-04-19 Dphi Acquisitions, Inc. Digital tracking servo system with tracking skate detection

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1172310A (en) * 1967-03-17 1969-11-26 British Broadcasting Corp Improvements in Electrical Signal Limiters and Related Devices
GB1190763A (en) * 1966-08-04 1970-05-06 Electrical & Musical Ind Ltd Improvements in or relating to Automatic Level Control Arrangements

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3789143A (en) * 1971-03-29 1974-01-29 D Blackmer Compander with control signal logarithmically related to the instantaneous rms value of the input signal
JPS592082B2 (ja) * 1976-09-10 1984-01-17 ソニー株式会社 音声信号のダイナミツクレンジ改善方法
US4114115A (en) * 1976-11-04 1978-09-12 California Microwave, Inc. Compandor apparatus
JPS5439516A (en) * 1977-09-02 1979-03-27 Sanyo Electric Co Ltd Noise reduction unit
JPS56134811A (en) * 1980-03-24 1981-10-21 Sony Corp Gain control circuit
US4376916A (en) * 1980-05-29 1983-03-15 Cbs Inc. Signal compression and expansion system
JPS5744338A (en) * 1980-08-29 1982-03-12 Victor Co Of Japan Ltd Noise reduction device
US4379659A (en) * 1980-09-05 1983-04-12 Steiner Silidur A.G. Building blocks
US4449106A (en) * 1981-03-10 1984-05-15 Victor Company Of Japan, Ltd. Noise reducing apparatus
GB2160394B (en) * 1984-05-02 1988-03-16 Pioneer Electronic Corp Noise reduction system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1190763A (en) * 1966-08-04 1970-05-06 Electrical & Musical Ind Ltd Improvements in or relating to Automatic Level Control Arrangements
GB1172310A (en) * 1967-03-17 1969-11-26 British Broadcasting Corp Improvements in Electrical Signal Limiters and Related Devices

Also Published As

Publication number Publication date
US4862118A (en) 1989-08-29
JPS6397021A (ja) 1988-04-27
GB8723771D0 (en) 1987-11-11
DE3734664A1 (de) 1988-04-21
DE3734664C2 (OSRAM) 1990-04-12
GB2197567A (en) 1988-05-18

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Legal Events

Date Code Title Description
746 Register noted 'licences of right' (sect. 46/1977)

Effective date: 20010104

PCNP Patent ceased through non-payment of renewal fee

Effective date: 20041009