ZA893873B - Automatic gain control device - Google Patents

Automatic gain control device

Info

Publication number
ZA893873B
ZA893873B ZA893873A ZA893873A ZA893873B ZA 893873 B ZA893873 B ZA 893873B ZA 893873 A ZA893873 A ZA 893873A ZA 893873 A ZA893873 A ZA 893873A ZA 893873 B ZA893873 B ZA 893873B
Authority
ZA
South Africa
Prior art keywords
control device
gain control
automatic gain
automatic
gain
Prior art date
Application number
ZA893873A
Inventor
Anthony Fagan
Fagan Anthony
Original Assignee
Taldat 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 Taldat Ltd filed Critical Taldat Ltd
Publication of ZA893873B publication Critical patent/ZA893873B/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
    • H03G3/3052—Automatic control in amplifiers having semiconductor devices in bandpass amplifiers (H.F. or I.F.) or in frequency-changers used in a (super)heterodyne receiver
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/12—Analogue/digital converters
    • H03M1/18—Automatic control for modifying the range of signals the converter can handle, e.g. gain ranging
    • H03M1/181—Automatic control for modifying the range of signals the converter can handle, e.g. gain ranging in feedback mode, i.e. by determining the range to be selected from one or more previous digital output values
    • H03M1/183—Automatic control for modifying the range of signals the converter can handle, e.g. gain ranging in feedback mode, i.e. by determining the range to be selected from one or more previous digital output values the feedback signal controlling the gain of an amplifier or attenuator preceding the analogue/digital converter
    • H03M1/185—Automatic control for modifying the range of signals the converter can handle, e.g. gain ranging in feedback mode, i.e. by determining the range to be selected from one or more previous digital output values the feedback signal controlling the gain of an amplifier or attenuator preceding the analogue/digital converter the determination of the range being based on more than one digital output value, e.g. on a running average, a power estimation or the rate of change

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Control Of Amplification And Gain Control (AREA)
  • Analogue/Digital Conversion (AREA)
ZA893873A 1989-03-16 1989-05-23 Automatic gain control device ZA893873B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IE86089A IE62843B1 (en) 1989-03-16 1989-03-16 Automatic gain control devices

Publications (1)

Publication Number Publication Date
ZA893873B true ZA893873B (en) 1990-03-28

Family

ID=11019050

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA893873A ZA893873B (en) 1989-03-16 1989-05-23 Automatic gain control device

Country Status (3)

Country Link
GB (1) GB2229333B (en)
IE (1) IE62843B1 (en)
ZA (1) ZA893873B (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2713846B1 (en) * 1993-12-07 1996-01-05 Thomson Csf Method of automatic gain control in a digital radio receiver and receiver implementing this method.
GB2297443B (en) * 1995-01-26 1999-09-08 Sony Uk Ltd Amplifier
GB2298750B (en) * 1995-03-10 2000-06-28 Motorola Israel Ltd Radio receiver
JPH09130245A (en) * 1995-11-06 1997-05-16 Sony Corp Gain varying circuit
US7076225B2 (en) 2001-02-16 2006-07-11 Qualcomm Incorporated Variable gain selection in direct conversion receiver
US7085334B2 (en) * 2002-09-30 2006-08-01 Lsi Logic Corporation Automatic gain control with analog and digital gain
US7206030B2 (en) * 2003-01-30 2007-04-17 Texas Instruments Incorporated Fast-convergence two-stage automatic gain control (AGC)
US7443455B2 (en) * 2003-12-30 2008-10-28 Texas Instruments Incorporated Automatic gain control based on multiple input references in a video decoder
US7222037B2 (en) * 2004-10-15 2007-05-22 Genesis Microchip Inc. Hybrid automatic gain control (AGC)
US7274322B2 (en) 2005-07-25 2007-09-25 Honeywell International Inc. Systems and methods for automatic gain control for multichannel receivers
JP2007142775A (en) * 2005-11-17 2007-06-07 Toshiba Corp Receiver and automatic gain control method
EP2002651A1 (en) * 2006-03-24 2008-12-17 Nxp B.V. Automatic gain control circuit
WO2010129038A1 (en) 2009-05-04 2010-11-11 Maxlinear, Inc. Self-calibrating gain control system
CN102457239B (en) * 2010-11-02 2014-06-04 安凯(广州)微电子技术有限公司 Gain control system and method

Also Published As

Publication number Publication date
GB8910530D0 (en) 1989-06-21
GB2229333B (en) 1993-08-25
GB2229333A (en) 1990-09-19
IE62843B1 (en) 1995-03-08

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