JPH0582800B2 - - Google Patents

Info

Publication number
JPH0582800B2
JPH0582800B2 JP59088256A JP8825684A JPH0582800B2 JP H0582800 B2 JPH0582800 B2 JP H0582800B2 JP 59088256 A JP59088256 A JP 59088256A JP 8825684 A JP8825684 A JP 8825684A JP H0582800 B2 JPH0582800 B2 JP H0582800B2
Authority
JP
Japan
Prior art keywords
speaker
microphone
feedback
filter
amplifier
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.)
Expired - Lifetime
Application number
JP59088256A
Other languages
English (en)
Japanese (ja)
Other versions
JPS60232797A (ja
Inventor
Koshin Shimada
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 JP59088256A priority Critical patent/JPS60232797A/ja
Publication of JPS60232797A publication Critical patent/JPS60232797A/ja
Publication of JPH0582800B2 publication Critical patent/JPH0582800B2/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
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/02—Circuits for transducers, loudspeakers or microphones for preventing acoustic reaction, i.e. acoustic oscillatory feedback
    • 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)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Circuit For Audible Band Transducer (AREA)
JP59088256A 1984-05-04 1984-05-04 スピ−カ装置 Granted JPS60232797A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59088256A JPS60232797A (ja) 1984-05-04 1984-05-04 スピ−カ装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59088256A JPS60232797A (ja) 1984-05-04 1984-05-04 スピ−カ装置

Publications (2)

Publication Number Publication Date
JPS60232797A JPS60232797A (ja) 1985-11-19
JPH0582800B2 true JPH0582800B2 (cs) 1993-11-22

Family

ID=13937789

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59088256A Granted JPS60232797A (ja) 1984-05-04 1984-05-04 スピ−カ装置

Country Status (1)

Country Link
JP (1) JPS60232797A (cs)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9800796D0 (en) * 1998-01-16 1998-03-11 Mumford Ray Feedback control circuit
JP4209806B2 (ja) * 2004-04-27 2009-01-14 ティーオーエー株式会社 共鳴周波数検出方法、共鳴周波数選択方法、および、共鳴周波数検出装置

Also Published As

Publication number Publication date
JPS60232797A (ja) 1985-11-19

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