FR2242811B1 - - Google Patents

Info

Publication number
FR2242811B1
FR2242811B1 FR7429143A FR7429143A FR2242811B1 FR 2242811 B1 FR2242811 B1 FR 2242811B1 FR 7429143 A FR7429143 A FR 7429143A FR 7429143 A FR7429143 A FR 7429143A FR 2242811 B1 FR2242811 B1 FR 2242811B1
Authority
FR
France
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
Application number
FR7429143A
Other versions
FR2242811A1 (fr
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.)
Sony Corp
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Publication of FR2242811A1 publication Critical patent/FR2242811A1/fr
Application granted granted Critical
Publication of FR2242811B1 publication Critical patent/FR2242811B1/fr
Expired legal-status Critical Current

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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Control Of Amplification And Gain Control (AREA)
  • Stereo-Broadcasting Methods (AREA)
FR7429143A 1973-08-27 1974-08-26 Expired FR2242811B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1973100433U JPS5337558Y2 (fr) 1973-08-27 1973-08-27

Publications (2)

Publication Number Publication Date
FR2242811A1 FR2242811A1 (fr) 1975-03-28
FR2242811B1 true FR2242811B1 (fr) 1978-10-13

Family

ID=14273805

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7429143A Expired FR2242811B1 (fr) 1973-08-27 1974-08-26

Country Status (8)

Country Link
US (1) US3893038A (fr)
JP (1) JPS5337558Y2 (fr)
CA (1) CA1018621A (fr)
DE (1) DE2441024A1 (fr)
FR (1) FR2242811B1 (fr)
GB (1) GB1476516A (fr)
IT (1) IT1019101B (fr)
NL (1) NL7411416A (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5172261A (fr) * 1974-12-20 1976-06-22 Hitachi Ltd
US3992584A (en) * 1975-05-09 1976-11-16 Dugan Daniel W Automatic microphone mixer
DE2638286C3 (de) * 1976-08-25 1979-03-01 Dasy Inter S.A., Genf (Schweiz) Schaltungsanordnung für ein Freisprechertelefon
US4181818A (en) * 1976-11-05 1980-01-01 Gentex Corporation Personal amplifier system
JPS54106161A (en) * 1978-02-08 1979-08-20 Saun Design Japan:Kk Switch circuit
US4229625A (en) * 1978-12-29 1980-10-21 Bell Telephone Laboratories, Incorporated Repeater level control circuit
JPS5760714A (en) * 1980-09-29 1982-04-12 Toshiba Corp Adjusting device for frequency characteristic
US5291558A (en) * 1992-04-09 1994-03-01 Rane Corporation Automatic level control of multiple audio signal sources
US6757395B1 (en) 2000-01-12 2004-06-29 Sonic Innovations, Inc. Noise reduction apparatus and method

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3509289A (en) * 1967-10-26 1970-04-28 Zenith Radio Corp Binaural hearing aid system

Also Published As

Publication number Publication date
CA1018621A (en) 1977-10-04
GB1476516A (en) 1977-06-16
NL7411416A (nl) 1975-03-03
DE2441024A1 (de) 1975-03-13
US3893038A (en) 1975-07-01
IT1019101B (it) 1977-11-10
JPS5046043U (fr) 1975-05-08
JPS5337558Y2 (fr) 1978-09-12
FR2242811A1 (fr) 1975-03-28

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Legal Events

Date Code Title Description
ST Notification of lapse