DE2429242A1 - Mehrkanal-steuereinrichtung mit gleichstrombetaetigten einstellelementen - Google Patents

Mehrkanal-steuereinrichtung mit gleichstrombetaetigten einstellelementen

Info

Publication number
DE2429242A1
DE2429242A1 DE2429242A DE2429242A DE2429242A1 DE 2429242 A1 DE2429242 A1 DE 2429242A1 DE 2429242 A DE2429242 A DE 2429242A DE 2429242 A DE2429242 A DE 2429242A DE 2429242 A1 DE2429242 A1 DE 2429242A1
Authority
DE
Germany
Prior art keywords
signal
control
control device
differential amplifier
transistor
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.)
Withdrawn
Application number
DE2429242A
Other languages
German (de)
English (en)
Inventor
Paul Dean Filliman
Francis Harlow Hilbert
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.)
Motorola Solutions Inc
Original Assignee
Motorola Inc
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 Motorola Inc filed Critical Motorola Inc
Publication of DE2429242A1 publication Critical patent/DE2429242A1/de
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G5/00—Tone control or bandwidth control in amplifiers
    • H03G5/02—Manually-operated control
    • H03G5/04—Manually-operated control in untuned amplifiers
    • H03G5/10—Manually-operated control in untuned amplifiers having semiconductor devices
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/02—Manually-operated control
    • H03G3/04—Manually-operated control in untuned amplifiers
    • H03G3/10—Manually-operated control in untuned amplifiers having semiconductor devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S7/00—Indicating arrangements; Control arrangements, e.g. balance control
    • H04S7/30—Control circuits for electronic adaptation of the sound field
    • H04S7/307—Frequency adjustment, e.g. tone control

Landscapes

  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
  • Stereophonic System (AREA)
  • Control Of Amplification And Gain Control (AREA)
DE2429242A 1973-06-19 1974-06-19 Mehrkanal-steuereinrichtung mit gleichstrombetaetigten einstellelementen Withdrawn DE2429242A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US371437A US3875334A (en) 1973-06-19 1973-06-19 Multi-channel control circuit with D-C operated control devices

Publications (1)

Publication Number Publication Date
DE2429242A1 true DE2429242A1 (de) 1975-01-16

Family

ID=23463996

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2429242A Withdrawn DE2429242A1 (de) 1973-06-19 1974-06-19 Mehrkanal-steuereinrichtung mit gleichstrombetaetigten einstellelementen

Country Status (7)

Country Link
US (1) US3875334A (enrdf_load_stackoverflow)
JP (1) JPS5840367B2 (enrdf_load_stackoverflow)
CA (1) CA998619A (enrdf_load_stackoverflow)
DE (1) DE2429242A1 (enrdf_load_stackoverflow)
GB (1) GB1461145A (enrdf_load_stackoverflow)
HK (1) HK73779A (enrdf_load_stackoverflow)
IT (1) IT1013490B (enrdf_load_stackoverflow)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2808027A1 (de) * 1977-03-10 1978-09-21 Motorola Inc Ferngesteuerter verstaerker
EP0060188A1 (fr) * 1981-03-13 1982-09-15 Thomson-Csf Circuit de commande de volume et de tonalité incorporant une correction physiologique sans filtre supplémentaire
DE3627056A1 (de) * 1986-08-09 1988-02-18 Thomson Brandt Gmbh Schaltung zur dynamik-kompression oder -expansion in einem nutzsignalweg

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3937885A (en) * 1974-09-06 1976-02-10 Motorola, Inc. Control circuit for a matrixed four channel audio reproducing system
JPS5234649U (enrdf_load_stackoverflow) * 1975-09-03 1977-03-11
JPS5265644A (en) * 1975-11-26 1977-05-31 Matsushita Electric Ind Co Ltd Volume control circuit
US4045748A (en) * 1975-12-19 1977-08-30 The Magnavox Company Audio control system
JPS5313860A (en) * 1976-07-23 1978-02-07 Pioneer Electronic Corp Tone control device
US4113984A (en) * 1976-09-17 1978-09-12 General Motors Corporation Voltage translating circuit for volume and balance control of a four-channel audio system
US4076959A (en) * 1976-10-08 1978-02-28 General Motors Corporation Volume, tone and balance control for multi-channel audio systems
JPS5383553A (en) * 1976-12-29 1978-07-24 Matsushita Electric Ind Co Ltd Aural circuit
JPS5760714A (en) * 1980-09-29 1982-04-12 Toshiba Corp Adjusting device for frequency characteristic
US4404527A (en) * 1980-11-03 1983-09-13 General Motors Corporation Bridge audio amplifier including low level fade control
US4466118A (en) * 1983-02-01 1984-08-14 Motorola, Inc. Dual range audio level control
JPS6022265U (ja) * 1983-07-25 1985-02-15 株式会社　ジエ−アンドエム ドライバ
CH686753A5 (de) * 1993-07-19 1996-06-14 Yair Dr Schiftan Elektronische Vorrichtung zur Erzeugung von akustischen raeuumlichen Effekten.
AU765762B2 (en) * 1999-12-22 2003-09-25 2+2+2 Ag Method and arrangement for recording and playing back sounds
JP2002142300A (ja) * 2000-11-06 2002-05-17 Pioneer Electronic Corp 音場形成回路および音場形成装置
US8411877B2 (en) * 2009-10-13 2013-04-02 Conexant Systems, Inc. Tuning and DAC selection of high-pass filters for audio codecs
JP5327481B2 (ja) * 2011-01-13 2013-10-30 オンキヨー株式会社 トーンコントロール装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3466572A (en) * 1965-10-14 1969-09-09 Automatic Elect Lab Apparatus for regulating signals in response to their total root mean square value
US3631365A (en) * 1968-11-01 1971-12-28 Dolby Laboratories Inc Signal compressors and expanders
US3769459A (en) * 1970-07-20 1973-10-30 Motorola Inc Volume and tone control for multi-channel audio systems
US3752928A (en) * 1971-03-04 1973-08-14 D Flickinger Amplifier system utilizing regenerative and degenerative feedback to shape the frequency response
DE2262089C3 (de) * 1972-12-19 1975-10-30 Philips Patentverwaltung Gmbh, 2000 Hamburg Schaltungsanordnung zur elektronischen Frequenzbeeinflussung, insbesondere elektronischer Klangeinsteller

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2808027A1 (de) * 1977-03-10 1978-09-21 Motorola Inc Ferngesteuerter verstaerker
EP0060188A1 (fr) * 1981-03-13 1982-09-15 Thomson-Csf Circuit de commande de volume et de tonalité incorporant une correction physiologique sans filtre supplémentaire
FR2501935A1 (fr) * 1981-03-13 1982-09-17 Thomson Csf Circuit de commande de volume et de tonalite incorporant une correction physiologique sans filtre supplementaire
DE3627056A1 (de) * 1986-08-09 1988-02-18 Thomson Brandt Gmbh Schaltung zur dynamik-kompression oder -expansion in einem nutzsignalweg

Also Published As

Publication number Publication date
CA998619A (en) 1976-10-19
US3875334A (en) 1975-04-01
GB1461145A (en) 1977-01-13
JPS5037401A (enrdf_load_stackoverflow) 1975-04-08
IT1013490B (it) 1977-03-30
JPS5840367B2 (ja) 1983-09-05
HK73779A (en) 1979-10-26

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Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
8139 Disposal/non-payment of the annual fee