FR2151124B1 - - Google Patents

Info

Publication number
FR2151124B1
FR2151124B1 FR727231279A FR7231279A FR2151124B1 FR 2151124 B1 FR2151124 B1 FR 2151124B1 FR 727231279 A FR727231279 A FR 727231279A FR 7231279 A FR7231279 A FR 7231279A FR 2151124 B1 FR2151124 B1 FR 2151124B1
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
FR727231279A
Other languages
French (fr)
Other versions
FR2151124A1 (xx
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.)
Pioneer Corp
Original Assignee
Pioneer Electronic 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
Priority claimed from JP8032671U external-priority patent/JPS5122664Y2/ja
Priority claimed from JP8032871U external-priority patent/JPS5228522Y2/ja
Priority claimed from JP8032771U external-priority patent/JPS5228521Y2/ja
Priority claimed from JP8032971U external-priority patent/JPS5122665Y2/ja
Application filed by Pioneer Electronic Corp filed Critical Pioneer Electronic Corp
Publication of FR2151124A1 publication Critical patent/FR2151124A1/fr
Application granted granted Critical
Publication of FR2151124B1 publication Critical patent/FR2151124B1/fr
Expired 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
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H04R9/04—Construction, mounting, or centering of coil
    • H04R9/041—Centering
    • H04R9/042—Centering by pressurised air

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
FR727231279A 1971-09-04 1972-09-04 Expired FR2151124B1 (xx)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP8032671U JPS5122664Y2 (xx) 1971-09-04 1971-09-04
JP8032871U JPS5228522Y2 (xx) 1971-09-04 1971-09-04
JP8032771U JPS5228521Y2 (xx) 1971-09-04 1971-09-04
JP8032971U JPS5122665Y2 (xx) 1971-09-04 1971-09-04

Publications (2)

Publication Number Publication Date
FR2151124A1 FR2151124A1 (xx) 1973-04-13
FR2151124B1 true FR2151124B1 (xx) 1979-02-09

Family

ID=27466421

Family Applications (1)

Application Number Title Priority Date Filing Date
FR727231279A Expired FR2151124B1 (xx) 1971-09-04 1972-09-04

Country Status (3)

Country Link
US (1) US3819876A (xx)
DE (1) DE2243427A1 (xx)
FR (1) FR2151124B1 (xx)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5253220Y2 (xx) * 1972-06-20 1977-12-02
US3983337A (en) * 1973-06-21 1976-09-28 Babbco, Ltd. Broad-band acoustic speaker
WO1994016536A1 (en) * 1993-01-06 1994-07-21 Velodyne Acoustics, Inc. Speaker containing dual coil
JP4260333B2 (ja) * 2000-03-16 2009-04-30 スター精密株式会社 電気音響変換器
US8155372B2 (en) * 2007-06-15 2012-04-10 Donald North Wire suspension for speakers
JP5751090B2 (ja) * 2011-08-22 2015-07-22 ソニー株式会社 スピーカー装置

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE372585A (xx) * 1929-09-03
US1960016A (en) * 1933-04-07 1934-05-22 Rca Corp Sound translating device
FR902890A (fr) * 1943-03-27 1945-09-14 Dispositif de suspension de l'élément mobile de haut-parleurs électrodynamiques
GB776280A (en) * 1954-05-26 1957-06-05 Cole E K Ltd Improvements in or relating to moving coil loudspeakers and microphones
GB889967A (en) * 1957-03-13 1962-02-21 Rola Celestion Ltd Improvements in or relating to electro-acoustic transducers
US3095942A (en) * 1959-01-23 1963-07-02 Wilfred E Thibodean Sonic vibrator
US3518460A (en) * 1968-10-30 1970-06-30 Euphonics Corp Ultrasonic transducer employing suspended piezoelectric plate

Also Published As

Publication number Publication date
US3819876A (en) 1974-06-25
DE2243427A1 (de) 1973-04-12
FR2151124A1 (xx) 1973-04-13

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Legal Events

Date Code Title Description
ST Notification of lapse