JPS5538733A - Bone conduction hearing aid - Google Patents

Bone conduction hearing aid

Info

Publication number
JPS5538733A
JPS5538733A JP11118178A JP11118178A JPS5538733A JP S5538733 A JPS5538733 A JP S5538733A JP 11118178 A JP11118178 A JP 11118178A JP 11118178 A JP11118178 A JP 11118178A JP S5538733 A JPS5538733 A JP S5538733A
Authority
JP
Japan
Prior art keywords
piece
hearing aid
bone
vibrations
capacitor
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.)
Granted
Application number
JP11118178A
Other languages
Japanese (ja)
Other versions
JPS617080B2 (en
Inventor
Hiromasa Ishiwatari
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 JP11118178A priority Critical patent/JPS5538733A/en
Publication of JPS5538733A publication Critical patent/JPS5538733A/en
Publication of JPS617080B2 publication Critical patent/JPS617080B2/ja
Granted 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
    • H04R11/00—Transducers of moving-armature or moving-core type

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)

Abstract

PURPOSE:To secure the control for the frequency characteristics by detecting and then feeding back the vibrations of the telephone receiver, thus enhancing the articulation of the bone condution hearing aid. CONSTITUTION:Vibration bar 22 of the bone receiver is supported by spring 23, and the adjustment is given via spacer 24 between pole pieces 19 and 22. Vibration transmission part 25 is fixed to spring 23 along with pole piece 22, and capacitor is formed between pieces 22 and 19. The charged electret film 26 is adhered close to piece 22 so that the overlap voltage of the capacitor may vary when piece 22 has vibrations. And the overlap voltage receives such phase with which the negative feedback may be satisfied near the resonance frequency via the phase circuit, and is then fed back to the amplifier. Thus only the frequency characteristics near the resonance frequency is improved from 27-29 as shown in the graph.
JP11118178A 1978-09-08 1978-09-08 Bone conduction hearing aid Granted JPS5538733A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11118178A JPS5538733A (en) 1978-09-08 1978-09-08 Bone conduction hearing aid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11118178A JPS5538733A (en) 1978-09-08 1978-09-08 Bone conduction hearing aid

Publications (2)

Publication Number Publication Date
JPS5538733A true JPS5538733A (en) 1980-03-18
JPS617080B2 JPS617080B2 (en) 1986-03-04

Family

ID=14554537

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11118178A Granted JPS5538733A (en) 1978-09-08 1978-09-08 Bone conduction hearing aid

Country Status (1)

Country Link
JP (1) JPS5538733A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59174800U (en) * 1983-04-28 1984-11-21 シ−メンス・アクチエンゲゼルシヤフト hearing aid
US4791673A (en) * 1986-12-04 1988-12-13 Schreiber Simeon B Bone conduction audio listening device and method
KR100506039B1 (en) * 2002-05-24 2005-08-04 학교법인 을지학원 Control Device and Method of Bone Conduction Hearing Aid
US8144908B2 (en) 2003-09-19 2012-03-27 Cochlear Bone Anchored Solutions Ab Method and an arrangement for damping a resonance frequency

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59174800U (en) * 1983-04-28 1984-11-21 シ−メンス・アクチエンゲゼルシヤフト hearing aid
JPH0445360Y2 (en) * 1983-04-28 1992-10-26
US4791673A (en) * 1986-12-04 1988-12-13 Schreiber Simeon B Bone conduction audio listening device and method
KR100506039B1 (en) * 2002-05-24 2005-08-04 학교법인 을지학원 Control Device and Method of Bone Conduction Hearing Aid
US8144908B2 (en) 2003-09-19 2012-03-27 Cochlear Bone Anchored Solutions Ab Method and an arrangement for damping a resonance frequency

Also Published As

Publication number Publication date
JPS617080B2 (en) 1986-03-04

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