NL7205367A - - Google Patents

Info

Publication number
NL7205367A
NL7205367A NL7205367A NL7205367A NL7205367A NL 7205367 A NL7205367 A NL 7205367A NL 7205367 A NL7205367 A NL 7205367A NL 7205367 A NL7205367 A NL 7205367A NL 7205367 A NL7205367 A NL 7205367A
Authority
NL
Netherlands
Application number
NL7205367A
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
Priority claimed from JP46025892A external-priority patent/JPS5138541B1/ja
Priority claimed from JP6073771A external-priority patent/JPS5138544B2/ja
Application filed filed Critical
Publication of NL7205367A publication Critical patent/NL7205367A/xx

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/3005—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers
    • H03G3/301—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers the gain being continuously variable
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/3005—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers
    • H03G3/301—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers the gain being continuously variable
    • H03G3/3015—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers the gain being continuously variable using diodes or transistors
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/34—Muting amplifier when no signal is present
    • H03G3/341—Muting when no signals or only weak signals are present
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G5/00—Tone control or bandwidth control in amplifiers
    • H03G5/16—Automatic control
    • H03G5/18—Automatic control in untuned amplifiers
    • H03G5/22—Automatic control in untuned amplifiers having semiconductor devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Networks Using Active Elements (AREA)
  • Amplifiers (AREA)
NL7205367A 1971-04-20 1972-04-20 NL7205367A (cs)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP46025892A JPS5138541B1 (cs) 1971-04-20 1971-04-20
JP6073771A JPS5138544B2 (cs) 1971-08-10 1971-08-10

Publications (1)

Publication Number Publication Date
NL7205367A true NL7205367A (cs) 1972-10-24

Family

ID=26363584

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7205367A NL7205367A (cs) 1971-04-20 1972-04-20

Country Status (5)

Country Link
US (1) US3798559A (cs)
CA (1) CA957950A (cs)
FR (1) FR2133912B1 (cs)
GB (1) GB1384944A (cs)
NL (1) NL7205367A (cs)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR41119E (fr) * 1972-07-19 1932-12-01 Asea Ab Procédé et dispositif pour éliminer l'humidité contenue dans la vapeur des turbines à vapeur, et récupérer la chaleur emmagasinée dans l'humidité
JPS5051646A (cs) * 1973-09-07 1975-05-08
NL7416330A (nl) * 1974-12-16 1976-06-18 Philips Nv Inrichting voor het uitlezen van de ladings- toestand van een fototransistor.
CA1184506A (en) * 1980-04-21 1985-03-26 Akira Komatsu Method and system for discriminating human voice signal
US4540946A (en) * 1980-06-06 1985-09-10 National Research Development Corp. Variable characteristic filters
IT1212744B (it) * 1983-05-19 1989-11-30 Sogs Ates Componenti Elettroni Circuito per l'attenuazione dei disturbi in un radioricevitore mediante l'impiego di un filtro passa-basso a banda passante regolabile.
US4609834A (en) * 1984-12-24 1986-09-02 Burroughs Corporation Integrated logic circuit incorporating a module which generates a control signal that cancels switching noise
JPS61234118A (ja) * 1985-04-09 1986-10-18 Mitsubishi Electric Corp 波形整形回路
JPS6210930A (ja) * 1985-07-06 1987-01-19 Nec Corp スケルチ検出回路
US4970419A (en) * 1987-03-23 1990-11-13 Unisys Corporation Low-noise transmission line termination circuitry
US4872145A (en) * 1987-05-04 1989-10-03 Hazeltine Corporation Noise trap circuit
US5426394A (en) * 1993-03-12 1995-06-20 Thomson Consumer Electronics S.A. Sound intermediate frequency amplifier for a broadcast receiver
US5461223A (en) * 1992-10-09 1995-10-24 Eastman Kodak Company Bar code detecting circuitry
DE19505697A1 (de) * 1995-02-20 1996-08-22 Siemens Ag Verstärkereinrichtung zum Verstärken elektrischer Signale in einem vorgegebenen Frequenzbereich mit steuerbarer Verstärkung
US5828592A (en) * 1997-03-12 1998-10-27 Information Storage Devices, Inc. Analog signal recording and playback integrated circuit and message management system
US5942930A (en) * 1997-09-25 1999-08-24 Lucent Technologies, Inc. Shaping and level adjusting filter
DE69909087T2 (de) * 1998-05-11 2004-05-13 Texas Instruments Denmark A/S Verfahren zum reduzieren von verzerrungen und geräuschen von rechteckimpulsen,schaltung zum erzeugen von minimal verzerrten pulsen sowie gebrauch des verfahrens und der schaltung
US6204715B1 (en) * 1999-02-26 2001-03-20 General Motors Corporation Signal amplifying circuit
DE10134557C2 (de) * 2001-07-16 2003-07-31 Infineon Technologies Ag Schaltungsanordnung und Verfahren zum Entladen mindestens eines Schaltungsknotens
EP1588347B1 (en) * 2003-01-09 2009-04-08 Aerielle Technologies, Inc. Circuit and method for providing an auto-off and/or auto-on capability for an audio device
CN103414440A (zh) * 2013-08-14 2013-11-27 董志伟 一种增益随时间变化的信号放大电路

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE156C (de) * 1877-08-09 H. RÖSICKE, Ingenieur, in Berlin Dampf-Wasserofen
NL66C (nl) * 1912-06-01 1913-12-01 Wilson George Muntregelingstoestel voor gas- of vloeistof-automaten
US3117287A (en) * 1959-10-29 1964-01-07 Raytheon Co Transistor electronic attenuators
DE1235999B (de) * 1964-09-12 1967-03-09 Telefunken Patent Impulsfilter, das nur dann elektrische Impulse abgibt, wenn Eingangsimpulse einer bestimmten vorgegebenen Zeitdauer vorhanden sind
US3448292A (en) * 1966-08-01 1969-06-03 Ibm Wideband agc circuit
DE1499809A1 (de) * 1966-10-04 1970-02-19 Philips Nv Aufzeichnungs- und/oder Wiedergabegeraet
US3496481A (en) * 1967-02-02 1970-02-17 Columbia Broadcasting Syst Inc Automatic gain control system with noise variable threshold
US3497815A (en) * 1967-11-28 1970-02-24 Us Navy Automatic noise rejection apparatus
US3560768A (en) * 1968-04-11 1971-02-02 Grundig Emv Control circuit for a low-frequency amplifier
DE1299043B (de) * 1968-04-25 1969-07-10 Blaupunkt Werke Gmbh Fernbedienbare Lautstaerkeregelung
US3596192A (en) * 1969-02-13 1971-07-27 North American Rockwell Nonlinear low-pass filter
US3548334A (en) * 1969-07-28 1970-12-15 Matsushita Electric Industrial Co Ltd Noise reduction circuit and system
US3588705A (en) * 1969-11-12 1971-06-28 Nasa Frequency-modulation demodulator threshold extension device
US3638037A (en) * 1970-05-26 1972-01-25 Eastech Automatic tracking filter
US3714588A (en) * 1970-10-13 1973-01-30 Nasa Self tuning bandpass filter
US3701059A (en) * 1971-04-16 1972-10-24 Us Navy Remote controlled, adjustable bandwidth low pass filter
US3716726A (en) * 1971-07-13 1973-02-13 Bell Telephone Labor Inc Center clipper

Also Published As

Publication number Publication date
CA957950A (en) 1974-11-19
FR2133912B1 (cs) 1977-01-14
US3798559A (en) 1974-03-19
FR2133912A1 (cs) 1972-12-01
GB1384944A (en) 1975-02-26

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Legal Events

Date Code Title Description
BV The patent application has lapsed