DE2136247B2 - Lautstarkeregelung fur Mehrkanal NF Systeme - Google Patents

Lautstarkeregelung fur Mehrkanal NF Systeme

Info

Publication number
DE2136247B2
DE2136247B2 DE2136247A DE2136247A DE2136247B2 DE 2136247 B2 DE2136247 B2 DE 2136247B2 DE 2136247 A DE2136247 A DE 2136247A DE 2136247 A DE2136247 A DE 2136247A DE 2136247 B2 DE2136247 B2 DE 2136247B2
Authority
DE
Germany
Prior art keywords
transistor
transistors
signal
volume
channels
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.)
Pending
Application number
DE2136247A
Other languages
German (de)
English (en)
Other versions
DE2136247A1 (de
Inventor
Ronald Jay Addison Freimark
Philip Durand Prospect Heights Gunderson
Paul Jacob Des Plaines Niffenegger
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 DE2136247A1 publication Critical patent/DE2136247A1/de
Publication of DE2136247B2 publication Critical patent/DE2136247B2/de
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G1/00—Details of arrangements for controlling amplification
    • H03G1/0005—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal
    • H03G1/0035—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal using continuously variable impedance elements
    • H03G1/0082—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal using continuously variable impedance elements using bipolar transistor-type devices
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/68—Combinations of amplifiers, e.g. multi-channel amplifiers for stereophonics
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G1/00—Details of arrangements for controlling amplification
    • H03G1/0005—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal
    • H03G1/0017—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal the device being at least one of the amplifying solid-state elements
    • H03G1/0023—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal the device being at least one of the amplifying solid-state elements in emitter-coupled or cascode amplifiers
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Amplification And Gain Control (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
  • Amplifiers (AREA)
DE2136247A 1970-07-20 1971-07-20 Lautstarkeregelung fur Mehrkanal NF Systeme Pending DE2136247B2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US5630170A 1970-07-20 1970-07-20
US5631370A 1970-07-20 1970-07-20

Publications (2)

Publication Number Publication Date
DE2136247A1 DE2136247A1 (de) 1972-03-02
DE2136247B2 true DE2136247B2 (de) 1973-10-25

Family

ID=26735199

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2136247A Pending DE2136247B2 (de) 1970-07-20 1971-07-20 Lautstarkeregelung fur Mehrkanal NF Systeme

Country Status (6)

Country Link
US (2) US3769459A (OSRAM)
JP (1) JPS5610014Y2 (OSRAM)
CA (2) CA940605A (OSRAM)
DE (1) DE2136247B2 (OSRAM)
FR (1) FR2099484B1 (OSRAM)
GB (1) GB1346233A (OSRAM)

Cited By (1)

* 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

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3793484A (en) * 1972-11-13 1974-02-19 Audiometric Teleprocessing Inc Programmable audio level control useful in audiometric apparatus
US3875334A (en) * 1973-06-19 1975-04-01 Motorola Inc Multi-channel control circuit with D-C operated control devices
US3937885A (en) * 1974-09-06 1976-02-10 Motorola, Inc. Control circuit for a matrixed four channel audio reproducing system
JPS5226144A (en) * 1975-08-22 1977-02-26 Shinshirasuna Denki Kk Automatic gain control circuit
US4063032A (en) * 1976-03-16 1977-12-13 John C. Bogue Constant power balance controls for stereophonic and quadraphonic sound systems
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
US4181818A (en) * 1976-11-05 1980-01-01 Gentex Corporation Personal amplifier system
US4155047A (en) * 1978-01-11 1979-05-15 Baskind David Lee Voltage controlled attenuator
US4404527A (en) * 1980-11-03 1983-09-13 General Motors Corporation Bridge audio amplifier including low level fade control
US4545278A (en) * 1983-04-06 1985-10-08 Fender Musical Instruments Corporation Apparatus and method for adjusting the characteristic sounds of electric guitars, and for controlling tones
AT393576B (de) * 1989-09-28 1991-11-11 Philips Nv Schaltungsanordnung zur elektronischen pegelsteuerung eines tonsignals
US6281749B1 (en) 1997-06-17 2001-08-28 Srs Labs, Inc. Sound enhancement system
US6088461A (en) * 1997-09-26 2000-07-11 Crystal Semiconductor Corporation Dynamic volume control system
FR2781591B1 (fr) * 1998-07-22 2000-09-22 Technical Maintenance Corp Systeme de reproduction audiovisuelle
WO2008092111A2 (en) * 2007-01-26 2008-07-31 Jm Electronics Ltd. Llc Drivers and methods for driving a load
US8867776B2 (en) 2012-01-09 2014-10-21 Imation Corp. Audio speaker frame for multimedia device
EP2803206A4 (en) 2012-01-09 2015-10-21 Imation Corp WIRELESS AUDIO READER AND SPEAKER SYSTEM
US9071906B2 (en) * 2012-01-09 2015-06-30 Imation Corp. Wireless audio player and speaker system
USD718736S1 (en) 2012-01-09 2014-12-02 Imation Corp. Audio player and speaker system

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3071648A (en) * 1963-01-01 Stereo amplifier apparatus and the like
CA800674A (en) * 1968-12-03 A. Priddle William Bass control circuit
US1931664A (en) * 1930-08-21 1933-10-24 Rca Corp Audio frequency transmission circuits
US2488410A (en) * 1945-01-26 1949-11-15 Rca Corp Control circuits for alternating current transmission networks
US3036158A (en) * 1957-09-25 1962-05-22 Webcor Inc Binaural volume tuner
US3039062A (en) * 1959-10-26 1962-06-12 Capitol Records Balance control system for stereo amplifier
GB915404A (en) * 1961-01-13 1963-01-09 Marconi Wireless Telegraph Co Improvements in or relating to variable gain circuit arrangements
US3222599A (en) * 1961-01-17 1965-12-07 Solid States Systems Inc Differential amplifier metering circuit with temperature compensation
US3135830A (en) * 1961-07-12 1964-06-02 Motorola Inc Stereophonic amplifier system
US3247464A (en) * 1961-09-08 1966-04-19 Rca Corp Audio amplifier including volume compression means
US3284713A (en) * 1963-03-26 1966-11-08 Motorola Inc Emitter coupled high frequency amplifier
US3260952A (en) * 1964-01-21 1966-07-12 Northern Electric Co Fader amplifier comprising variable gain transistor circuits
US3512096A (en) * 1967-05-31 1970-05-12 Hitachi Ltd Transistor circuit having stabilized output d.c. level

Cited By (1)

* 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

Also Published As

Publication number Publication date
DE2136247A1 (de) 1972-03-02
JPS5610014Y2 (OSRAM) 1981-03-05
CA940456A (en) 1974-01-22
FR2099484B1 (OSRAM) 1976-10-29
CA940605A (en) 1974-01-22
GB1346233A (en) 1974-02-06
FR2099484A1 (OSRAM) 1972-03-17
US3725583A (en) 1973-04-03
JPS5347344U (OSRAM) 1978-04-21
US3769459A (en) 1973-10-30

Similar Documents

Publication Publication Date Title
DE2136247B2 (de) Lautstarkeregelung fur Mehrkanal NF Systeme
DE2262089A1 (de) Schaltungsanordnung zur elektronischen frequenzgangbeeinflussung, insbesondere elektronischer klangeinsteller
DE69223219T2 (de) Durch eine Steuerspannung regelbarer Verstärker mit einem Operationsverstärker
DE2653624B2 (de) Farbvideosignalverstärker
DE2851410A1 (de) Elektronische umschalteinrichtung
DE3017669A1 (de) Regelverstaerker
DE2459759A1 (de) Entzerreranordnung
EP0027519A1 (de) Schaltungsanordnung zum selbsttätigen Einstellen der Lautstärke eines Lautsprechers in Abhängigkeit von einem am Lautsprecherort herrschenden Störgeräuschpegel
DE3323315C2 (de) Pufferverstärker mit einer Sourcefolger-Eingangsstufe
DE2744249C3 (OSRAM)
EP0700153A2 (de) Schaltungsanordnung mit steuerbarem Übertragungsverhalten
DE3019145A1 (de) Schaltungsanordnung zum selbsttaetigen anpassen der lautstaerke mindestens eines lautsprechers an einen am lautsprecherort herrschenden stoergeraeuschpegel fuer rundfunkempfaenger, insbesondere autorad
DE2854196A1 (de) Schaltungsanordnung zur einschaltverzoegerung bei einer verstaerkerschaltung
DE3624391C2 (OSRAM)
DE2755827A1 (de) Schaltungsanordnung mit einem durch eine steuergleichspannung veraenderbaren frequenzgang
DE2711520C3 (de) Belastungsschaltung für eine Signalquelle
DE4233475C2 (de) Schaltungsanordnung zum Stummschalten von Tonteilen
DE3103237C2 (de) Schaltungsanordnung für Kompander zur Rauschabstandsvergrößerung
DE1188658B (de) Transistorverstaerker mit einem geregelten Transistor und einem Regeltransistor
DE1263098B (de) Verstaerker mit frequenzabhaengiger Gegenkopplung zur Egalisierung des Frequenzgangs
DE2110526C (de) Verstarker fur hochfrequente Signale
DE3834143A1 (de) Schaltungsanordnung zur verstellung der groesse eines signals
DE2613199C2 (de) Automatische Verstärkungsregelschaltung
DE3518235C2 (OSRAM)
DE3201655A1 (de) Schaltung fuer entzerrer