JPS57118496A - Movable coil loudspeaker - Google Patents

Movable coil loudspeaker

Info

Publication number
JPS57118496A
JPS57118496A JP13963681A JP13963681A JPS57118496A JP S57118496 A JPS57118496 A JP S57118496A JP 13963681 A JP13963681 A JP 13963681A JP 13963681 A JP13963681 A JP 13963681A JP S57118496 A JPS57118496 A JP S57118496A
Authority
JP
Japan
Prior art keywords
coil loudspeaker
movable coil
movable
loudspeaker
coil
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
JP13963681A
Other languages
Japanese (ja)
Inventor
Arekusandaa Furaiyaa Peetaa
Jiyosefu Deitsupu Jiyon
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.)
Rank Organization Ltd
Original Assignee
Rank Organization Ltd
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 Rank Organization Ltd filed Critical Rank Organization Ltd
Publication of JPS57118496A publication Critical patent/JPS57118496A/en
Pending 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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
JP13963681A 1980-09-04 1981-09-04 Movable coil loudspeaker Pending JPS57118496A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8028560 1980-09-04

Publications (1)

Publication Number Publication Date
JPS57118496A true JPS57118496A (en) 1982-07-23

Family

ID=10515843

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13963681A Pending JPS57118496A (en) 1980-09-04 1981-09-04 Movable coil loudspeaker

Country Status (2)

Country Link
EP (1) EP0048116A1 (en)
JP (1) JPS57118496A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5961693U (en) * 1982-10-15 1984-04-23 株式会社ケンウッド Speaker sensor

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19604086C2 (en) * 1996-02-06 1999-06-10 Alfred Ziegenberg Loudspeaker with integrated electronic sensor sound pressure control
EP1569497A1 (en) * 2004-02-25 2005-08-31 Harman Becker Automotive Systems GmbH Motional feedback loudspeaker
ES2653837T3 (en) 2010-06-18 2018-02-09 Fob Synthesis, Inc. Carbapenem antibacterials with gram-negative activity
WO2016082046A1 (en) 2014-11-28 2016-06-02 Audera Acoustics Inc. High displacement acoustic transducer systems
US10034109B2 (en) * 2015-04-09 2018-07-24 Audera Acoustics Inc. Acoustic transducer systems with position sensing
GB201712391D0 (en) 2017-08-01 2017-09-13 Turner Michael James Controller for an electromechanical transducer
JP2020043402A (en) * 2018-09-07 2020-03-19 ヤマハ株式会社 Position detection device
US11019441B2 (en) 2019-08-02 2021-05-25 Analog Devices, Inc. Position sensor for a voice coil
CN111193972A (en) * 2019-09-29 2020-05-22 扬州房慧智能科技有限公司 Intelligent sound box with illuminating lamp

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3014096A (en) * 1956-05-29 1961-12-19 Warner W Clements Sound reproducing means
US3047661A (en) * 1957-01-18 1962-07-31 Daniel E Winker High fidelity audio system
CA982055A (en) * 1972-09-11 1976-01-20 Toshiyuki Goto Sound reproducing system
FR2296985A1 (en) * 1975-01-02 1976-07-30 Lan Yan Fock Alain Distortion corrector fo r loudspeaker - uses modulation of ligit path to phototransistor providing feedback signal to drive amplifier
GB1585759A (en) * 1977-06-10 1981-03-11 Nat Res Dev Depressing resonant frequency of a suspended mass
FR2404368A1 (en) * 1977-09-27 1979-04-20 Boanich Jacques Servomotor control for loudspeaker - uses reflected light beam received by photoelectric cell producing signal to control speaker position
DE2815368A1 (en) * 1978-04-10 1979-10-18 Mueller Boehm Dirk Negative feedback system for loudspeaker - derives feedback from light beam modulated by movement of diaphragm and picked up by photodiode
DE2853676A1 (en) * 1978-12-13 1980-06-26 Licentia Gmbh Moving coil loudspeaker with feedback arrangement - has parabolic reflector with optical sensor in circuit with output amplifier

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5961693U (en) * 1982-10-15 1984-04-23 株式会社ケンウッド Speaker sensor

Also Published As

Publication number Publication date
EP0048116A1 (en) 1982-03-24

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