AU2003211528A1 - Mute circuit for preventing pop noise, and speaker drive circuit - Google Patents

Mute circuit for preventing pop noise, and speaker drive circuit

Info

Publication number
AU2003211528A1
AU2003211528A1 AU2003211528A AU2003211528A AU2003211528A1 AU 2003211528 A1 AU2003211528 A1 AU 2003211528A1 AU 2003211528 A AU2003211528 A AU 2003211528A AU 2003211528 A AU2003211528 A AU 2003211528A AU 2003211528 A1 AU2003211528 A1 AU 2003211528A1
Authority
AU
Australia
Prior art keywords
circuit
speaker drive
pop noise
drive circuit
mute
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.)
Abandoned
Application number
AU2003211528A
Inventor
Kazuhiko Fujimori
Osatoshi Tokawa
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
Publication of AU2003211528A1 publication Critical patent/AU2003211528A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/30—Modifications of amplifiers to reduce influence of variations of temperature or supply voltage or other physical parameters
    • H03F1/305—Modifications of amplifiers to reduce influence of variations of temperature or supply voltage or other physical parameters in case of switching on or off of a power supply

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
AU2003211528A 2002-03-04 2003-03-04 Mute circuit for preventing pop noise, and speaker drive circuit Abandoned AU2003211528A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2002-057901 2002-03-04
JP2002057901A JP2003258559A (en) 2002-03-04 2002-03-04 Mute circuit for preventing pop noise and speaker drive circuit
PCT/JP2003/002458 WO2003075456A1 (en) 2002-03-04 2003-03-04 Mute circuit for preventing pop noise, and speaker drive circuit

Publications (1)

Publication Number Publication Date
AU2003211528A1 true AU2003211528A1 (en) 2003-09-16

Family

ID=27784675

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2003211528A Abandoned AU2003211528A1 (en) 2002-03-04 2003-03-04 Mute circuit for preventing pop noise, and speaker drive circuit

Country Status (3)

Country Link
JP (1) JP2003258559A (en)
AU (1) AU2003211528A1 (en)
WO (1) WO2003075456A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4568572B2 (en) 2004-10-07 2010-10-27 ローム株式会社 Audio signal output circuit and electronic device for generating audio output
JP2007336310A (en) * 2006-06-16 2007-12-27 Onkyo Corp Controller of sound mute circuit
WO2010060809A1 (en) * 2008-11-26 2010-06-03 Arcelik Anonim Sirketi An electronic device
EP2317644B1 (en) 2009-10-30 2015-10-28 ST-Ericsson SA Amplifier activation
US10965253B2 (en) 2019-01-07 2021-03-30 Synaptics Incorporated Mute mechanism with reduced pop noise in audio amplifier systems and methods

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5762605A (en) * 1980-10-02 1982-04-15 Matsushita Electric Ind Co Ltd Suppressing device for electric power on-and-off sound of amplifier
JPS59148409A (en) * 1983-02-14 1984-08-25 Hitachi Ltd Amplifier
JP6066592B2 (en) * 2012-06-12 2017-01-25 キヤノン株式会社 Exposure apparatus and device manufacturing method

Also Published As

Publication number Publication date
WO2003075456A1 (en) 2003-09-12
JP2003258559A (en) 2003-09-12

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Legal Events

Date Code Title Description
MK6 Application lapsed section 142(2)(f)/reg. 8.3(3) - pct applic. not entering national phase