NO20093455L - Metode og anordning for a dempe et lydsignal - Google Patents

Metode og anordning for a dempe et lydsignal

Info

Publication number
NO20093455L
NO20093455L NO20093455A NO20093455A NO20093455L NO 20093455 L NO20093455 L NO 20093455L NO 20093455 A NO20093455 A NO 20093455A NO 20093455 A NO20093455 A NO 20093455A NO 20093455 L NO20093455 L NO 20093455L
Authority
NO
Norway
Prior art keywords
attenuating
audible signal
headphone
earphone
processor
Prior art date
Application number
NO20093455A
Other languages
English (en)
Inventor
Roger Kihlberg
Oscar Karekull
Original Assignee
3M Svenska Ab
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 3M Svenska Ab filed Critical 3M Svenska Ab
Publication of NO20093455L publication Critical patent/NO20093455L/no

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G7/00—Volume compression or expansion in amplifiers
    • H03G7/007—Volume compression or expansion in amplifiers of digital or coded signals
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
    • G01H3/00—Measuring characteristics of vibrations by using a detector in a fluid
    • G01H3/10—Amplitude; Power
    • G01H3/14—Measuring mean amplitude; Measuring mean power; Measuring time integral of power
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H04R1/1041—Mechanical or electronic switches, or control elements
    • 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
    • H04R3/007—Protection circuits for transducers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2430/00—Signal processing covered by H04R, not provided for in its groups
    • H04R2430/01—Aspects of volume control, not necessarily automatic, in sound systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R5/00—Stereophonic arrangements
    • H04R5/033—Headphones for stereophonic communication

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • General Physics & Mathematics (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Headphones And Earphones (AREA)

Abstract

Fremgangsmåte for begrensing av lydvolumet i en øretelefon, en hodetelefon (8) eller lignende til et maksimalt tillatt nivå. Fremgangsmåten innbefatter at et inngangssignal (2) avføles av en prosessor (4) og dempes med en demper (6) dersom nivået er alt for høyt. Deretter sendes signalet (7) til øretelefonen, hodetelefonen (8) eller lignende. Prosessoren (4) svitsjes mellom en aktiv modus og en hvilemodus. En innretning for begrensing av lydvolumet i samsvar med fremgangsmåten, innbefatter en mikroprosessor (4) og en demper (6).
NO20093455A 2007-05-07 2009-12-01 Metode og anordning for a dempe et lydsignal NO20093455L (no)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE0701101A SE532191C2 (sv) 2007-05-07 2007-05-07 Förfarande och anordning för dämpning av en ljudsignal
PCT/SE2008/000260 WO2008136723A1 (en) 2007-05-07 2008-04-10 A method and an apparatus for damping a sonic signal

Publications (1)

Publication Number Publication Date
NO20093455L true NO20093455L (no) 2009-12-01

Family

ID=39943735

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20093455A NO20093455L (no) 2007-05-07 2009-12-01 Metode og anordning for a dempe et lydsignal

Country Status (8)

Country Link
US (1) US20100128903A1 (no)
EP (1) EP2147568B1 (no)
CN (1) CN101690259A (no)
AU (1) AU2008246380C1 (no)
BR (1) BRPI0810348A2 (no)
NO (1) NO20093455L (no)
SE (1) SE532191C2 (no)
WO (1) WO2008136723A1 (no)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB201114915D0 (en) * 2011-08-30 2011-10-12 Limitear Ltd Hearing dose management
WO2016079513A1 (en) 2014-11-18 2016-05-26 Limitear Ltd Portable programmable device, system, method and computer program product

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE410695B (sv) * 1976-12-22 1979-10-22 Gullfiber Ab Horselskydd med hortelefoner
EP0095902A1 (en) * 1982-05-28 1983-12-07 British Broadcasting Corporation Headphone level protection circuit
US4538296A (en) * 1983-07-22 1985-08-27 Short Robert S Sound inhibitor for audio transducers
US4944015A (en) * 1988-04-29 1990-07-24 Juve Ronald A Audio compression circuit for television audio signals
US4975949A (en) * 1989-06-15 1990-12-04 Plantronics, Inc. Electronic headset telephone
US5369711A (en) * 1990-08-31 1994-11-29 Bellsouth Corporation Automatic gain control for a headset
CN2135888Y (zh) * 1992-05-18 1993-06-09 喻光强 耳机的音量安全装置
US5701352A (en) * 1994-07-14 1997-12-23 Bellsouth Corporation Tone suppression automatic gain control for a headset
US6711271B2 (en) * 2000-07-03 2004-03-23 Apherma Corporation Power management for hearing aid device
US6757318B1 (en) * 2000-10-10 2004-06-29 Computer Access Technology Corporation Apparatus and method for synchronizing with a communication network by shadowing a page response connection to the network
US6970571B2 (en) * 2002-02-02 2005-11-29 Jackson Products, Inc. Low cost hearing protection device
US7151838B2 (en) * 2002-08-21 2006-12-19 Galler Bernard A Digital hearing aid battery conservation method and apparatus
US20040120534A1 (en) * 2002-12-19 2004-06-24 Mills William H. Headphone automatic gain control system
TWI240573B (en) * 2004-07-15 2005-09-21 Ali Corp Methods and related circuit for automatic audio volume level control
EP1558059B1 (en) * 2005-04-18 2010-06-16 Phonak Ag Controlling a gain setting in a hearing instrument
US7903833B2 (en) * 2006-03-06 2011-03-08 Hearing Enhancement Group Headworn listening device and method
CN101072016B (zh) * 2006-05-12 2011-06-08 鸿富锦精密工业（深圳）有限公司 增益自动控制装置、方法及其应用的音频处理设备及耳机
SE530105C2 (sv) * 2006-07-12 2008-03-04 Peltor Ab Förfarande för begränsning av den maximalt tillåtna ljudvolymen i en hörlur samt hörlur för genomförande av förfarandet
US7623667B2 (en) * 2008-01-14 2009-11-24 Apple Inc. Electronic device accessory with ultrasonic tone generator

Also Published As

Publication number Publication date
AU2008246380A1 (en) 2008-11-13
EP2147568A4 (en) 2012-01-25
EP2147568B1 (en) 2017-01-04
AU2008246380B2 (en) 2012-01-19
AU2008246380C1 (en) 2012-08-30
SE532191C2 (sv) 2009-11-10
CN101690259A (zh) 2010-03-31
SE0701101L (sv) 2008-11-08
EP2147568A1 (en) 2010-01-27
WO2008136723A1 (en) 2008-11-13
BRPI0810348A2 (pt) 2014-10-14
US20100128903A1 (en) 2010-05-27

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Legal Events

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FC2A Withdrawal, rejection or dismissal of laid open patent application