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FI97001C - Switching to process a speech signal - Google Patents

Switching to process a speech signal

Info

Publication number
FI97001C
FI97001C FI932021A FI932021A FI97001C FI 97001 C FI97001 C FI 97001C FI 932021 A FI932021 A FI 932021A FI 932021 A FI932021 A FI 932021A FI 97001 C FI97001 C FI 97001C
Authority
FI
Finland
Prior art keywords
switching
speech signal
speech
signal
Prior art date
Application number
FI932021A
Other languages
Finnish (fi)
Swedish (sv)
Other versions
FI932021A0 (en
FI932021A (en
FI97001B (en
Inventor
Jari Hagqvist
Original Assignee
Nokia Mobile Phones 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 Nokia Mobile Phones Ltd filed Critical Nokia Mobile Phones Ltd
Priority to FI932021A priority Critical patent/FI97001C/en
Publication of FI932021A0 publication Critical patent/FI932021A0/en
Priority to GB9408187A priority patent/GB2277840B/en
Publication of FI932021A publication Critical patent/FI932021A/en
Publication of FI97001B publication Critical patent/FI97001B/en
Application granted granted Critical
Publication of FI97001C publication Critical patent/FI97001C/en

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Control Of Amplification And Gain Control (AREA)
  • Analogue/Digital Conversion (AREA)
FI932021A 1993-05-05 1993-05-05 Switching to process a speech signal FI97001C (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FI932021A FI97001C (en) 1993-05-05 1993-05-05 Switching to process a speech signal
GB9408187A GB2277840B (en) 1993-05-05 1994-04-25 Circuit for handling a speech signal

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI932021 1993-05-05
FI932021A FI97001C (en) 1993-05-05 1993-05-05 Switching to process a speech signal

Publications (4)

Publication Number Publication Date
FI932021A0 FI932021A0 (en) 1993-05-05
FI932021A FI932021A (en) 1994-12-01
FI97001B FI97001B (en) 1996-06-14
FI97001C true FI97001C (en) 1996-09-25

Family

ID=8537860

Family Applications (1)

Application Number Title Priority Date Filing Date
FI932021A FI97001C (en) 1993-05-05 1993-05-05 Switching to process a speech signal

Country Status (2)

Country Link
FI (1) FI97001C (en)
GB (1) GB2277840B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19606261C2 (en) * 1996-02-06 1998-04-09 Stage Tec Entwicklungsgesellsc Microphone with assigned amplifier
US6766176B1 (en) 1996-07-23 2004-07-20 Qualcomm Incorporated Method and apparatus for automatically adjusting speaker and microphone gains within a mobile telephone
EP1811660B1 (en) * 1999-03-30 2013-10-09 Qualcomm Incorporated Method and apparatus for automatically adjusting speaker gain within a mobile telephone
CN100514989C (en) * 1999-03-30 2009-07-15 高通股份有限公司 Microphone gains regulator of communication device
GB2407012B (en) * 2003-09-27 2008-04-23 Motorola Inc Speech communication unit and method of level adjustment therein
JP4241443B2 (en) 2004-03-10 2009-03-18 ソニー株式会社 Audio signal processing apparatus and audio signal processing method

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2166612B (en) * 1982-02-22 1986-12-03 Rca Corp Television receiver with digital agc
DE3401748A1 (en) * 1984-01-19 1985-08-01 Siemens AG, 1000 Berlin und 8000 München CIRCUIT ARRANGEMENT FOR DIGITAL LEVEL CONTROL
DK163699C (en) * 1986-02-11 1992-08-17 Poul Richter Joergensen PROCEDURE FOR AUTOMATIC AMPLIFIER CONTROL OF A SIGNAL AND A CIRCUIT FOR EXERCISING THE PROCEDURE
GB8610347D0 (en) * 1986-04-28 1986-06-04 Gen Electric Co Plc Agc circuit
FR2606956A1 (en) * 1986-11-14 1988-05-20 Radiotechnique Compelec ANALOG-DIGITAL CONVERSION DEVICE HAVING AUTOMATIC GAIN CONTROL DEVICE
JPS63209209A (en) * 1987-02-25 1988-08-30 Yamaha Corp Digital signal processing circuit
US5083124A (en) * 1990-04-17 1992-01-21 Teleco Oilfield Services Inc. Nuclear logging tool electronics including programmable gain amplifier and peak detection circuits
CA2066711C (en) * 1990-08-24 1996-09-03 Randall Wayne Rich Dual mode automatic gain control

Also Published As

Publication number Publication date
FI932021A0 (en) 1993-05-05
GB2277840A (en) 1994-11-09
FI932021A (en) 1994-12-01
GB9408187D0 (en) 1994-06-15
FI97001B (en) 1996-06-14
GB2277840B (en) 1997-05-21

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Legal Events

Date Code Title Description
FG Patent granted

Owner name: NOKIA MOBILE PHONES LTD

BB Publication of examined application