JPS57119596A - Motional feedback type speaker - Google Patents

Motional feedback type speaker

Info

Publication number
JPS57119596A
JPS57119596A JP706381A JP706381A JPS57119596A JP S57119596 A JPS57119596 A JP S57119596A JP 706381 A JP706381 A JP 706381A JP 706381 A JP706381 A JP 706381A JP S57119596 A JPS57119596 A JP S57119596A
Authority
JP
Japan
Prior art keywords
speaker
piezoelectric element
frequency characteristics
center
flatten
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
JP706381A
Other languages
Japanese (ja)
Inventor
Yasuhiro Ishii
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.)
Sanyo Electric Co Ltd
Sanyo Denki Co Ltd
Original Assignee
Sanyo Electric Co Ltd
Sanyo Denki 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 Sanyo Electric Co Ltd, Sanyo Denki Co Ltd filed Critical Sanyo Electric Co Ltd
Priority to JP706381A priority Critical patent/JPS57119596A/en
Publication of JPS57119596A publication Critical patent/JPS57119596A/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

Abstract

PURPOSE:To flatten the sound-pressure frequency characteristics of a speaker and to reduce nonlinear distortion by obtaining a detection signal, which has superior frequency characteristics and excellent linearity, from a discoidal piezoelectric element by driving the center of the piezoelectric element, and then by feeding back the detection signal to the drive system of the speaker. CONSTITUTION:A top plate 16 is fitted atop of the voice coil bobbin 11 of a speaker, a supporter 17 is stood on the center end of the top plate 16, and the center of a discoidal piezoelectric element 12 is stuck atop of the supprrter 17. The supporter 17 of this piezoelectric element 12 is fixed, together with a bobbin 11, to a diaphragm 15 as only one supporting means through a dust cap 16. Then, a detection output which has superior frequency characteristics and excellent linearity is obtained and fed back to the drive system of the speaker to flatten the sound-pressure frequency characteristics of the speaker, thereby reducing nonlinear distortion.
JP706381A 1981-01-19 1981-01-19 Motional feedback type speaker Pending JPS57119596A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP706381A JPS57119596A (en) 1981-01-19 1981-01-19 Motional feedback type speaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP706381A JPS57119596A (en) 1981-01-19 1981-01-19 Motional feedback type speaker

Publications (1)

Publication Number Publication Date
JPS57119596A true JPS57119596A (en) 1982-07-26

Family

ID=11655603

Family Applications (1)

Application Number Title Priority Date Filing Date
JP706381A Pending JPS57119596A (en) 1981-01-19 1981-01-19 Motional feedback type speaker

Country Status (1)

Country Link
JP (1) JPS57119596A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60119191U (en) * 1984-01-19 1985-08-12
US7006640B2 (en) 2003-01-30 2006-02-28 Mitsubishi Denki Kabushiki Kaisha Speaker

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60119191U (en) * 1984-01-19 1985-08-12
US7006640B2 (en) 2003-01-30 2006-02-28 Mitsubishi Denki Kabushiki Kaisha Speaker

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