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EP1115266A4 - Sound-reproduction device - Google Patents

Sound-reproduction device

Info

Publication number
EP1115266A4
EP1115266A4 EP00946273A EP00946273A EP1115266A4 EP 1115266 A4 EP1115266 A4 EP 1115266A4 EP 00946273 A EP00946273 A EP 00946273A EP 00946273 A EP00946273 A EP 00946273A EP 1115266 A4 EP1115266 A4 EP 1115266A4
Authority
EP
European Patent Office
Prior art keywords
sound
reproduction device
reproduction
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.)
Withdrawn
Application number
EP00946273A
Other languages
German (de)
French (fr)
Other versions
EP1115266A1 (en
Inventor
Masahide Onishi
Fumiyasu Konno
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 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
Publication of EP1115266A1 publication Critical patent/EP1115266A1/en
Publication of EP1115266A4 publication Critical patent/EP1115266A4/en
Withdrawn legal-status Critical Current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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Control Of Amplification And Gain Control (AREA)
EP00946273A 1999-07-16 2000-07-12 Sound-reproduction device Withdrawn EP1115266A4 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP20307499A JP2001036984A (en) 1999-07-16 1999-07-16 Acoustic reproducing device
JP20307499 1999-07-16
PCT/JP2000/004652 WO2001006809A1 (en) 1999-07-16 2000-07-12 Sound-reproduction device

Publications (2)

Publication Number Publication Date
EP1115266A1 EP1115266A1 (en) 2001-07-11
EP1115266A4 true EP1115266A4 (en) 2005-12-07

Family

ID=16467929

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00946273A Withdrawn EP1115266A4 (en) 1999-07-16 2000-07-12 Sound-reproduction device

Country Status (3)

Country Link
EP (1) EP1115266A4 (en)
JP (1) JP2001036984A (en)
WO (1) WO2001006809A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003009276A (en) * 2001-06-19 2003-01-10 Matsushita Electric Ind Co Ltd Automatic sound volume controller
CN101044785A (en) * 2004-10-21 2007-09-26 皇家飞利浦电子股份有限公司 Loudspeaker feedback
JP5538249B2 (en) * 2011-01-20 2014-07-02 日本電信電話株式会社 Stereo headset

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01282996A (en) * 1988-05-10 1989-11-14 Citizen Watch Co Ltd Detection driving system in noise eliminating device
EP0951201A2 (en) * 1998-04-15 1999-10-20 Matsushita Electric Industrial Co., Ltd. Audio reproducing apparatus

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5210001B1 (en) * 1967-12-30 1977-03-19
JPS5863207A (en) * 1981-10-13 1983-04-15 Matsushita Electric Ind Co Ltd Sound reproducer
JP3548347B2 (en) * 1996-08-12 2004-07-28 ティーオーエー株式会社 Automatic volume control

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01282996A (en) * 1988-05-10 1989-11-14 Citizen Watch Co Ltd Detection driving system in noise eliminating device
EP0951201A2 (en) * 1998-04-15 1999-10-20 Matsushita Electric Industrial Co., Ltd. Audio reproducing apparatus

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 014, no. 062 (E - 0883) 5 February 1990 (1990-02-05) *
See also references of WO0106809A1 *

Also Published As

Publication number Publication date
EP1115266A1 (en) 2001-07-11
JP2001036984A (en) 2001-02-09
WO2001006809A1 (en) 2001-01-25

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20010316

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

RBV Designated contracting states (corrected)

Designated state(s): DE FR GB

A4 Supplementary search report drawn up and despatched

Effective date: 20051021

RIC1 Information provided on ipc code assigned before grant

Ipc: 7H 03G 3/32 B

Ipc: 7H 04R 3/04 A

Ipc: 7H 04R 3/00 B

17Q First examination report despatched

Effective date: 20060801

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: PANASONIC CORPORATION

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20110201