HK1040577B - 數碼自動放大率調節器 - Google Patents

數碼自動放大率調節器

Info

Publication number
HK1040577B
HK1040577B HK02101694.5A HK02101694A HK1040577B HK 1040577 B HK1040577 B HK 1040577B HK 02101694 A HK02101694 A HK 02101694A HK 1040577 B HK1040577 B HK 1040577B
Authority
HK
Hong Kong
Prior art keywords
gain control
automatic gain
input
variable gain
digital automatic
Prior art date
Application number
HK02101694.5A
Other languages
English (en)
Other versions
HK1040577A1 (en
Inventor
Kazakevich Leonid
Ozluturk Fatih
Original Assignee
Interdigital Tech Corp
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 Interdigital Tech Corp filed Critical Interdigital Tech Corp
Publication of HK1040577A1 publication Critical patent/HK1040577A1/xx
Publication of HK1040577B publication Critical patent/HK1040577B/zh

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G7/00—Volume compression or expansion in amplifiers
    • H03G7/001—Volume compression or expansion in amplifiers without controlling loop
    • 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

Landscapes

  • Control Of Amplification And Gain Control (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Circuits Of Receivers In General (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
HK02101694.5A 2000-03-27 2002-03-05 數碼自動放大率調節器 HK1040577B (zh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US19228900P 2000-03-27 2000-03-27

Publications (2)

Publication Number Publication Date
HK1040577A1 HK1040577A1 (en) 2002-06-14
HK1040577B true HK1040577B (zh) 2005-12-09

Family

ID=22709059

Family Applications (1)

Application Number Title Priority Date Filing Date
HK02101694.5A HK1040577B (zh) 2000-03-27 2002-03-05 數碼自動放大率調節器

Country Status (7)

Country Link
US (2) US6934344B2 (zh)
EP (1) EP1143611B1 (zh)
AT (1) ATE299622T1 (zh)
DE (1) DE60111885T2 (zh)
DK (1) DK1143611T3 (zh)
ES (1) ES2245957T3 (zh)
HK (1) HK1040577B (zh)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6934344B2 (en) * 2000-03-27 2005-08-23 Interdigital Technology Corporation Digital automatic gain control
US8094869B2 (en) 2001-07-02 2012-01-10 Digimarc Corporation Fragile and emerging digital watermarks
JPWO2003034588A1 (ja) * 2001-10-12 2005-02-10 三菱電機株式会社 増幅装置および受信機
US7440491B2 (en) * 2003-01-16 2008-10-21 Texas Instruments Incorporated Ultra-wideband communications system devices
DE102004021867B4 (de) * 2004-05-04 2012-02-16 Infineon Technologies Ag Verfahren zur Signalverarbeitung, insbesondere in einem Hochfrequenzempfänger und Signalaufbereitungsschaltung
US7817755B2 (en) 2007-03-05 2010-10-19 Hanan Cohen System, device and method for generating a logarithmic function according to a plurality of communication signals
WO2009089404A1 (en) * 2008-01-11 2009-07-16 Clemson University Rejection of a close-in-frequency interferer employing a log detector and classical down converter
CN103457561B (zh) * 2013-09-16 2016-07-06 浙江嘉科电子有限公司 一种多通道输入微波增益控制模块
US10063667B2 (en) * 2015-12-09 2018-08-28 Audio-Technica, U.S., Inc. Plug-on networked audio adapter
CN106230398A (zh) * 2016-08-31 2016-12-14 北京和利时智能技术有限公司 一种自动增益控制电路及其控制方法

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4188587A (en) * 1978-06-26 1980-02-12 Motorola, Inc. Linear gain control apparatus utilizing feed forward level control
US4193034A (en) * 1978-07-06 1980-03-11 International Standard Electric Corporation Radio receiver for FSK signals
US4785418A (en) * 1986-08-29 1988-11-15 International Business Machines Corporation Proportional automatic gain control
JP2671595B2 (ja) * 1990-10-25 1997-10-29 日本電気株式会社 復調装置
US6408017B1 (en) * 1993-12-21 2002-06-18 Unisys Corporation High speed demux parallel correlator system
US6195399B1 (en) * 1994-03-28 2001-02-27 Ericsson Inc. Method and apparatus for converting a wideband if signal to a complex (quadrature) baseband signal
JP3455934B2 (ja) * 1995-04-11 2003-10-14 日本電信電話株式会社 変調器
US5914990A (en) * 1995-11-22 1999-06-22 Telefonaktiebolaget Lm Ericsson Filtering in a receiver that uses log-polar signal processing
FR2742611B1 (fr) * 1995-12-19 1998-01-16 Alcatel Telspace Systeme de codage/decodage utilisant la modulation maq-16 codee en blocs a multiniveaux
JPH09186729A (ja) * 1996-01-08 1997-07-15 Hitachi Denshi Ltd 直交変調器および直交復調器の振幅誤差制御方法
US5852772A (en) * 1997-02-25 1998-12-22 Ericsson Inc. Receiver IF system with active filters
DE19736660C1 (de) * 1997-08-22 1999-03-11 Siemens Ag Regelanordnung zur Linearisierung einer Verstärkerschaltung
US6873663B1 (en) * 2000-02-16 2005-03-29 Telefonaktiebolaget Lm Ericsson Reception of M-ary PSK-modulated signals
US6721368B1 (en) * 2000-03-04 2004-04-13 Qualcomm Incorporated Transmitter architectures for communications systems
US6934344B2 (en) * 2000-03-27 2005-08-23 Interdigital Technology Corporation Digital automatic gain control

Also Published As

Publication number Publication date
ATE299622T1 (de) 2005-07-15
US20050190866A1 (en) 2005-09-01
US7664201B2 (en) 2010-02-16
HK1040577A1 (en) 2002-06-14
DK1143611T3 (da) 2005-11-14
DE60111885T2 (de) 2006-04-20
DE60111885D1 (de) 2005-08-18
EP1143611B1 (en) 2005-07-13
US20020012409A1 (en) 2002-01-31
EP1143611A1 (en) 2001-10-10
ES2245957T3 (es) 2006-02-01
US6934344B2 (en) 2005-08-23

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Legal Events

Date Code Title Description
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)

Effective date: 20150327