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GB2229333B - Automatic gain control devices - Google Patents

Automatic gain control devices

Info

Publication number
GB2229333B
GB2229333B GB8910530A GB8910530A GB2229333B GB 2229333 B GB2229333 B GB 2229333B GB 8910530 A GB8910530 A GB 8910530A GB 8910530 A GB8910530 A GB 8910530A GB 2229333 B GB2229333 B GB 2229333B
Authority
GB
United Kingdom
Prior art keywords
control devices
gain control
automatic gain
automatic
devices
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.)
Expired - Fee Related
Application number
GB8910530A
Other versions
GB2229333A (en
GB8910530D0 (en
Inventor
Anthony Fagan
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.)
TALDAT Ltd
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 GB8910530D0 publication Critical patent/GB8910530D0/en
Publication of GB2229333A publication Critical patent/GB2229333A/en
Application granted granted Critical
Publication of GB2229333B publication Critical patent/GB2229333B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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)
  • Analogue/Digital Conversion (AREA)
  • Control Of Amplification And Gain Control (AREA)
GB8910530A 1989-03-16 1989-05-08 Automatic gain control devices Expired - Fee Related GB2229333B (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 (3)

Publication Number Publication Date
GB8910530D0 GB8910530D0 (en) 1989-06-21
GB2229333A GB2229333A (en) 1990-09-19
GB2229333B true GB2229333B (en) 1993-08-25

Family

ID=11019050

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8910530A Expired - Fee Related GB2229333B (en) 1989-03-16 1989-05-08 Automatic gain control devices

Country Status (3)

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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2379825C2 (en) * 2001-02-16 2010-01-20 Квэлкомм Инкорпорейтед Architecture of receiver with direct conversion

Families Citing this family (13)

* 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 Variable gain circuit
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
WO2007110816A1 (en) 2006-03-24 2007-10-04 Nxp B.V. Automatic gain control circuit
TW201042913A (en) 2009-05-04 2010-12-01 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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2379825C2 (en) * 2001-02-16 2010-01-20 Квэлкомм Инкорпорейтед Architecture of receiver with direct conversion

Also Published As

Publication number Publication date
GB2229333A (en) 1990-09-19
IE62843B1 (en) 1995-03-08
ZA893873B (en) 1990-03-28
GB8910530D0 (en) 1989-06-21

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20050508