JPS60232797A - スピ−カ装置 - Google Patents

スピ−カ装置

Info

Publication number
JPS60232797A
JPS60232797A JP8825684A JP8825684A JPS60232797A JP S60232797 A JPS60232797 A JP S60232797A JP 8825684 A JP8825684 A JP 8825684A JP 8825684 A JP8825684 A JP 8825684A JP S60232797 A JPS60232797 A JP S60232797A
Authority
JP
Japan
Prior art keywords
speaker
microphone
amplifier
signal
filter
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
JP8825684A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0582800B2 (enrdf_load_stackoverflow
Inventor
Koshin Shimada
島田　康臣
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 JP8825684A 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)
JP8825684A 1984-05-04 1984-05-04 スピ−カ装置 Granted JPS60232797A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8825684A JPS60232797A (ja) 1984-05-04 1984-05-04 スピ−カ装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8825684A JPS60232797A (ja) 1984-05-04 1984-05-04 スピ−カ装置

Publications (2)

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

Family

ID=13937789

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8825684A Granted JPS60232797A (ja) 1984-05-04 1984-05-04 スピ−カ装置

Country Status (1)

Country Link
JP (1) JPS60232797A (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999037119A1 (en) * 1998-01-16 1999-07-22 Ray Mumford Feedback control circuit
WO2005104610A1 (ja) * 2004-04-27 2005-11-03 Toa Corporation 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

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999037119A1 (en) * 1998-01-16 1999-07-22 Ray Mumford Feedback control circuit
WO2005104610A1 (ja) * 2004-04-27 2005-11-03 Toa Corporation 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
US7965850B2 (en) 2004-04-27 2011-06-21 Toa Corporation Resonance frequency determining method, resonance frequency selecting method, and resonance frequency determining apparatus

Also Published As

Publication number Publication date
JPH0582800B2 (enrdf_load_stackoverflow) 1993-11-22

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