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JPS55105498A - Speaker - Google Patents

Speaker

Info

Publication number
JPS55105498A
JPS55105498A JP1368679A JP1368679A JPS55105498A JP S55105498 A JPS55105498 A JP S55105498A JP 1368679 A JP1368679 A JP 1368679A JP 1368679 A JP1368679 A JP 1368679A JP S55105498 A JPS55105498 A JP S55105498A
Authority
JP
Japan
Prior art keywords
magnetic
gap
coil
aural
coils
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
JP1368679A
Other languages
Japanese (ja)
Inventor
Takahisa Aoi
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP1368679A priority Critical patent/JPS55105498A/en
Publication of JPS55105498A publication Critical patent/JPS55105498A/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
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H04R9/04—Construction, mounting, or centering of coil
    • H04R9/045—Mounting

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)

Abstract

PURPOSE:To reduce the distortion of the higher harmonic by using in switching plural number of voice coils which are turned in division to the axial direction of the coil bobbin and in accordance with the aural input signal. CONSTITUTION:Voice coils 9a-9d are turned round coil bobbin 6 connected to diaphragm 8 and then inserted into gap 5 of the magnetic circuit consisting of magnetic yoke 1, center pole 2, magnet 3 and magnetic plate 4 each. For coils 9a-9d, only the coil opposing to plate 4 is selected via the input aural signal and by the circuit which is not shown in the diagram and then driven by the aural signal. Accordingly, the voice coil protruded outside magnetic gap 5 is never driven, thus causing no distortion due to the fluctuation of the magnetic flux density outside gap 5.
JP1368679A 1979-02-07 1979-02-07 Speaker Pending JPS55105498A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1368679A JPS55105498A (en) 1979-02-07 1979-02-07 Speaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1368679A JPS55105498A (en) 1979-02-07 1979-02-07 Speaker

Publications (1)

Publication Number Publication Date
JPS55105498A true JPS55105498A (en) 1980-08-13

Family

ID=11840063

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1368679A Pending JPS55105498A (en) 1979-02-07 1979-02-07 Speaker

Country Status (1)

Country Link
JP (1) JPS55105498A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7050602B2 (en) * 2000-08-14 2006-05-23 Knowles Electronics Llc. Low capacitance receiver coil
US9872109B2 (en) 2014-12-17 2018-01-16 Knowles Electronics, Llc Shared coil receiver

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7050602B2 (en) * 2000-08-14 2006-05-23 Knowles Electronics Llc. Low capacitance receiver coil
US9872109B2 (en) 2014-12-17 2018-01-16 Knowles Electronics, Llc Shared coil receiver

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