GB2444298B - Audio communication unit and method for providing acoustic protection - Google Patents

Audio communication unit and method for providing acoustic protection

Info

Publication number
GB2444298B
GB2444298B GB0623811A GB0623811A GB2444298B GB 2444298 B GB2444298 B GB 2444298B GB 0623811 A GB0623811 A GB 0623811A GB 0623811 A GB0623811 A GB 0623811A GB 2444298 B GB2444298 B GB 2444298B
Authority
GB
United Kingdom
Prior art keywords
communication unit
audio communication
providing acoustic
acoustic protection
protection
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.)
Active
Application number
GB0623811A
Other versions
GB2444298A (en
GB0623811D0 (en
Inventor
Aryeh Vered
Yossy Binhas
Nicholay A Kopnov
Shilo Ninburg
Hadi Shvartz
Sergey Vaisman
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.)
Motorola Solutions Inc
Original Assignee
Motorola Inc
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 Motorola Inc filed Critical Motorola Inc
Priority to GB0623811A priority Critical patent/GB2444298B/en
Publication of GB0623811D0 publication Critical patent/GB0623811D0/en
Publication of GB2444298A publication Critical patent/GB2444298A/en
Application granted granted Critical
Publication of GB2444298B publication Critical patent/GB2444298B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/3005—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers
    • H03G3/3026—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers the gain being discontinuously variable, e.g. controlled by switching
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G11/00—Limiting amplitude; Limiting rate of change of amplitude ; Clipping in general

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Amplifiers (AREA)
GB0623811A 2006-11-29 2006-11-29 Audio communication unit and method for providing acoustic protection Active GB2444298B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0623811A GB2444298B (en) 2006-11-29 2006-11-29 Audio communication unit and method for providing acoustic protection

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0623811A GB2444298B (en) 2006-11-29 2006-11-29 Audio communication unit and method for providing acoustic protection

Publications (3)

Publication Number Publication Date
GB0623811D0 GB0623811D0 (en) 2007-01-10
GB2444298A GB2444298A (en) 2008-06-04
GB2444298B true GB2444298B (en) 2009-04-29

Family

ID=37671506

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0623811A Active GB2444298B (en) 2006-11-29 2006-11-29 Audio communication unit and method for providing acoustic protection

Country Status (1)

Country Link
GB (1) GB2444298B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012213580A1 (en) * 2012-08-01 2014-02-06 Robert Bosch Gmbh Method and device for evaluating a received alternating signal

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4944015A (en) * 1988-04-29 1990-07-24 Juve Ronald A Audio compression circuit for television audio signals
GB2285356A (en) * 1993-12-28 1995-07-05 Nec Corp Reception volume limiting circuit for telephones
US5630014A (en) * 1993-10-27 1997-05-13 Nec Corporation Gain controller with automatic adjustment using integration energy values
GB2312799A (en) * 1996-04-30 1997-11-05 Sgs Thomson Microelectronics Arrangement for reducing audio level when a received signal is increased, for example during TV adverts
GB2320146A (en) * 1996-12-04 1998-06-10 Lg Electronics Inc Adjusting audio level using a switchable voltage divider
GB2359947A (en) * 1999-12-01 2001-09-05 Sagem Method of adjusting the gain of an amplifier in a mobile phone to keep the audio output below a maximum pain threshold and above a minimum audible threshold
US20060147049A1 (en) * 2004-12-30 2006-07-06 Plantronics, Inc. Sound pressure level limiter with anti-startle feature

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4944015A (en) * 1988-04-29 1990-07-24 Juve Ronald A Audio compression circuit for television audio signals
US5630014A (en) * 1993-10-27 1997-05-13 Nec Corporation Gain controller with automatic adjustment using integration energy values
GB2285356A (en) * 1993-12-28 1995-07-05 Nec Corp Reception volume limiting circuit for telephones
GB2312799A (en) * 1996-04-30 1997-11-05 Sgs Thomson Microelectronics Arrangement for reducing audio level when a received signal is increased, for example during TV adverts
GB2320146A (en) * 1996-12-04 1998-06-10 Lg Electronics Inc Adjusting audio level using a switchable voltage divider
GB2359947A (en) * 1999-12-01 2001-09-05 Sagem Method of adjusting the gain of an amplifier in a mobile phone to keep the audio output below a maximum pain threshold and above a minimum audible threshold
US20060147049A1 (en) * 2004-12-30 2006-07-06 Plantronics, Inc. Sound pressure level limiter with anti-startle feature

Also Published As

Publication number Publication date
GB2444298A (en) 2008-06-04
GB0623811D0 (en) 2007-01-10

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