FR2016588A1 - - Google Patents

Info

Publication number
FR2016588A1
FR2016588A1 FR6929427A FR6929427A FR2016588A1 FR 2016588 A1 FR2016588 A1 FR 2016588A1 FR 6929427 A FR6929427 A FR 6929427A FR 6929427 A FR6929427 A FR 6929427A FR 2016588 A1 FR2016588 A1 FR 2016588A1
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.)
Withdrawn
Application number
FR6929427A
Other languages
French (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.)
SERVO SOUND
Original Assignee
SERVO SOUND
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 SERVO SOUND filed Critical SERVO SOUND
Publication of FR2016588A1 publication Critical patent/FR2016588A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/002—Damping circuit arrangements for transducers, e.g. motional feedback circuits
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/34—Negative-feedback-circuit arrangements with or without positive feedback

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Amplifiers (AREA)
  • Circuit For Audible Band Transducer (AREA)
FR6929427A 1968-08-29 1969-08-28 Withdrawn FR2016588A1 (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE720115 1968-08-29

Publications (1)

Publication Number Publication Date
FR2016588A1 true FR2016588A1 (ja) 1970-05-08

Family

ID=3853448

Family Applications (1)

Application Number Title Priority Date Filing Date
FR6929427A Withdrawn FR2016588A1 (ja) 1968-08-29 1969-08-28

Country Status (4)

Country Link
US (1) US3647969A (ja)
BE (1) BE720115A (ja)
FR (1) FR2016588A1 (ja)
GB (1) GB1276344A (ja)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4638258A (en) * 1982-02-26 1987-01-20 Barcus-Berry Electronics, Inc. Reference load amplifier correction system
NL8401041A (nl) * 1984-04-03 1985-11-01 Philips Nv Elektro-akoestische inrichting.
US5031221A (en) * 1987-06-02 1991-07-09 Yamaha Corporation Dynamic loudspeaker driving apparatus
US5009281A (en) * 1988-03-10 1991-04-23 Yamaha Corporation Acoustic apparatus
EP0340435A3 (en) * 1988-04-01 1991-04-24 Yamaha Corporation Acoustic apparatus
JPH0728473B2 (ja) * 1988-05-06 1995-03-29 ヤマハ株式会社 インピーダンス補償回路
US4985925A (en) * 1988-06-24 1991-01-15 Sensor Electronics, Inc. Active noise reduction system
GB2234880A (en) * 1989-07-31 1991-02-13 David Robin Birt Controlling the Q factor of loudspeakers
US5604813A (en) * 1994-05-02 1997-02-18 Noise Cancellation Technologies, Inc. Industrial headset
US6683965B1 (en) 1995-10-20 2004-01-27 Bose Corporation In-the-ear noise reduction headphones
US6396930B1 (en) 1998-02-20 2002-05-28 Michael Allen Vaudrey Active noise reduction for audiometry
FR2778741B1 (fr) * 1998-05-12 2001-04-27 Ct Scient Tech Batiment Cstb Dispositif de controle actif d'impedance acoustique
CA2408045A1 (en) * 2001-10-16 2003-04-16 Audio Products International Corp. Loudspeaker with large displacement motional feedback
DE102007002920B4 (de) 2007-01-19 2012-09-20 Wolfgang Halang Verfahren zur Bestimmung der Membranengeschwindigkeit eines dynamischen Lautsprechers
GB201712391D0 (en) 2017-08-01 2017-09-13 Turner Michael James Controller for an electromechanical transducer
JP7015681B2 (ja) * 2017-11-30 2022-02-03 Koa株式会社 ヒータ温度制御回路、及び、それを用いたセンサ装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2887532A (en) * 1956-10-31 1959-05-19 Rca Corp Audio frequency amplifier
US3047661A (en) * 1957-01-18 1962-07-31 Daniel E Winker High fidelity audio system
US3530244A (en) * 1967-02-13 1970-09-22 Martin G Reiffin Motional feedback amplifier systems
US3525812A (en) * 1969-05-08 1970-08-25 James E Verdier Transducer circuit and method of operation

Also Published As

Publication number Publication date
BE720115A (ja) 1969-02-03
GB1276344A (en) 1972-06-01
US3647969A (en) 1972-03-07

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Legal Events

Date Code Title Description
ST Notification of lapse