HK76784A - Digitally-controlled wide range a.g.c. - Google Patents
Digitally-controlled wide range a.g.c.Info
- Publication number
- HK76784A HK76784A HK767/84A HK76784A HK76784A HK 76784 A HK76784 A HK 76784A HK 767/84 A HK767/84 A HK 767/84A HK 76784 A HK76784 A HK 76784A HK 76784 A HK76784 A HK 76784A
- Authority
- HK
- Hong Kong
- Prior art keywords
- counter
- output voltage
- controlled
- amplifier
- digital
- Prior art date
Links
- 230000005540 biological transmission Effects 0.000 abstract 2
- 230000002401 inhibitory effect Effects 0.000 abstract 1
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
- H03G3/3036—Automatic control in amplifiers having semiconductor devices in high-frequency amplifiers or in frequency-changers
-
- 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
-
- 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
- H03G3/301—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers the gain being continuously variable
- H03G3/3015—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers the gain being continuously variable using diodes or transistors
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Control Of Amplification And Gain Control (AREA)
- Liquid Crystal Substances (AREA)
- Vending Machines For Individual Products (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
- Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
- Oscillators With Electromechanical Resonators (AREA)
- Optical Record Carriers And Manufacture Thereof (AREA)
- Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
- Reinforcement Elements For Buildings (AREA)
- Transmitters (AREA)
- Radio Relay Systems (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB7931951 | 1979-09-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
HK76784A true HK76784A (en) | 1984-10-19 |
Family
ID=10507838
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
HK767/84A HK76784A (en) | 1979-09-14 | 1984-10-11 | Digitally-controlled wide range a.g.c. |
Country Status (16)
Country | Link |
---|---|
US (1) | US4360787A (de) |
EP (1) | EP0025681B1 (de) |
JP (1) | JPS5647111A (de) |
AT (1) | ATE6715T1 (de) |
AU (1) | AU538419B2 (de) |
CA (1) | CA1157100A (de) |
DE (1) | DE3066992D1 (de) |
DK (1) | DK389780A (de) |
ES (1) | ES8105529A1 (de) |
HK (1) | HK76784A (de) |
IE (1) | IE50791B1 (de) |
NO (1) | NO149264C (de) |
NZ (1) | NZ195215A (de) |
PT (1) | PT71786B (de) |
SG (1) | SG44084G (de) |
ZA (1) | ZA805415B (de) |
Families Citing this family (38)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3142199A1 (de) * | 1980-11-03 | 1982-06-16 | Naamloze Vennootschap Philips' Gloeilampenfabrieken, 5621 Eindhoven | Schaltungsanordnung zur verstaerkung elektrischer signale, die mit einer schaltung zum ausgleichen einer unerwuenschten komponente versehen ist |
US4471311A (en) * | 1981-04-10 | 1984-09-11 | Pioneer Electronic Corporation | Detector circuit having AGC function |
US4433304A (en) * | 1981-08-19 | 1984-02-21 | General Electric Company | Automatic noise rejection for use in scanner and the like |
US4441082A (en) * | 1981-10-09 | 1984-04-03 | American Microsystems, Inc. | Switched capacitor automatic gain control loop |
JPS58168314A (ja) * | 1982-03-30 | 1983-10-04 | Nec Corp | 自動利得制御増巾回路 |
GB2133943B (en) * | 1983-01-12 | 1986-09-17 | Ncr Co | Automatic gain control circuit |
US4485349A (en) * | 1983-04-08 | 1984-11-27 | Varian Associates, Inc. | Stabilized microwave power amplifier system |
US4604645A (en) * | 1983-09-30 | 1986-08-05 | Rca Corporation | Coarse/fine automatic chrominance gain control using a gain adjustable IF amplifier in a digital television receiver |
AT379928B (de) * | 1984-05-24 | 1986-03-10 | Viennatone Gmbh | Regelschaltung fuer verstaerker, insbesondere fuer hoergeraete |
JPS6173416A (ja) * | 1984-09-19 | 1986-04-15 | Nec Corp | 自動周波数制御・自動利得制御回路 |
US4638260A (en) * | 1984-09-21 | 1987-01-20 | Hamley James P | Audio amplifier |
US4634997A (en) * | 1984-11-13 | 1987-01-06 | At&T Bell Laboratories | Automatic gain control amplifier circuit |
US4731590A (en) * | 1986-07-03 | 1988-03-15 | American Telephone And Telegraph Company, At&T Bell Laboratories | Circuits with multiple controlled gain elements |
FR2620283B1 (fr) * | 1987-09-08 | 1989-12-01 | Thomson Csf | Dispositif de commande de la puissance de sortie d'un amplificateur fonctionnant en classe c |
JPH01185008A (ja) * | 1988-01-19 | 1989-07-24 | Nec Corp | 利得可変増幅器 |
GB2233516B (en) * | 1989-06-23 | 1994-01-05 | Orbitel Mobile Communications | An automatic gain control system |
EP0569688A1 (de) * | 1992-04-29 | 1993-11-18 | Hagenuk Telecom GmbH | Verfahren und Gerät zur Mehrwegeschwundkompensation in einem TDMA-Empfänger |
GB2273009A (en) * | 1992-11-28 | 1994-06-01 | Motorola Gmbh | RF Power amplifier ramp control of power level rise and fall |
US5606284A (en) * | 1994-08-26 | 1997-02-25 | Matsushita Electric Industrial Co., Ltd. | Automatic gain control device for producing constant amplitude output signal |
US5642075A (en) * | 1995-12-21 | 1997-06-24 | Itt Corporation | Sampled data automatic gain control |
US6118342A (en) * | 1999-04-13 | 2000-09-12 | Space Systems/Loral, Inc. | System and method for providing precise RF amplifier gain control over temperature |
DE10043436B4 (de) * | 2000-09-04 | 2008-10-09 | Infineon Technologies Ag | Verfahren und Schaltung zur automatischen Verstärkungsregelung eines Signalverstärkers |
US6927632B2 (en) * | 2001-06-20 | 2005-08-09 | Texas Instruments Incorporated | Low distortion compression amplifier |
KR100925430B1 (ko) * | 2002-12-28 | 2009-11-06 | 엘지전자 주식회사 | Rf 스위치 |
EP1618654B1 (de) * | 2003-04-16 | 2007-10-31 | Nxp B.V. | Verfahren zur regelung eines verstärkers mit variabler verstärkung und elektronische schaltung |
US6982594B2 (en) * | 2003-11-13 | 2006-01-03 | Skyworks Solutions Inc. | System for developing a secondary control signal in a power amplifier control loop |
US7522892B2 (en) * | 2003-12-22 | 2009-04-21 | Black Sand Technologies, Inc. | Power amplifier with serial interface and associated methods |
US7502601B2 (en) * | 2003-12-22 | 2009-03-10 | Black Sand Technologies, Inc. | Power amplifier with digital power control and associated methods |
JP4139800B2 (ja) * | 2004-08-24 | 2008-08-27 | 松下電器産業株式会社 | Agc回路 |
JP2007243606A (ja) * | 2006-03-08 | 2007-09-20 | Sony Corp | 信号増幅装置 |
DE102006034349B3 (de) * | 2006-07-25 | 2008-02-07 | Texas Instruments Deutschland Gmbh | Integrator und Fehlerverstärker |
DE102006038410B3 (de) * | 2006-08-17 | 2008-01-17 | Infineon Technologies Ag | Vorrichtung und Verfahren zur Regelung der Ausgangsleistung einer Verstärkerstufe |
JP4879783B2 (ja) * | 2007-03-09 | 2012-02-22 | パナソニック株式会社 | 自動利得制御回路 |
US7573335B2 (en) * | 2007-10-23 | 2009-08-11 | Seiko Epson Corporation | Automatic gain control (AGC) with lock detection |
JP5267321B2 (ja) * | 2009-05-18 | 2013-08-21 | 富士通株式会社 | 増幅器、送信装置および利得補償方法 |
TW201218621A (en) * | 2010-10-29 | 2012-05-01 | Anpec Electronics Corp | Device and method for signal amplification |
KR101287657B1 (ko) * | 2011-12-05 | 2013-07-24 | 삼성전기주식회사 | 전력 증폭기 |
GB2498946A (en) * | 2012-01-31 | 2013-08-07 | Texas Instruments Ltd | Fast start-up circuit for phase locked loop (PLL) |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3636462A (en) * | 1970-12-11 | 1972-01-18 | Atomic Energy Commission | Automatic dc level controlling system for a dc-coupled amplifier |
FR2151533A5 (de) * | 1971-09-01 | 1973-04-20 | Inst Francais Du Petrole | |
DE2161657C2 (de) * | 1971-12-11 | 1982-10-14 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Regeleinrichtung |
US4066977A (en) * | 1976-03-30 | 1978-01-03 | E-Systems, Inc. | Digitized AGC amplifier with gain hysteresis circuit |
JPS5317333A (en) * | 1976-07-30 | 1978-02-17 | Canon Inc | Automatic gain control circuit for simultaneous sound recording cine camera |
US4112384A (en) * | 1977-05-24 | 1978-09-05 | Morgan Industries | Controlled recovery automatic gain control amplifier |
-
1980
- 1980-09-02 ZA ZA00805415A patent/ZA805415B/xx unknown
- 1980-09-03 AU AU61996/80A patent/AU538419B2/en not_active Ceased
- 1980-09-03 NO NO802608A patent/NO149264C/no unknown
- 1980-09-05 CA CA000359614A patent/CA1157100A/en not_active Expired
- 1980-09-05 DE DE8080303140T patent/DE3066992D1/de not_active Expired
- 1980-09-05 AT AT80303140T patent/ATE6715T1/de not_active IP Right Cessation
- 1980-09-05 EP EP80303140A patent/EP0025681B1/de not_active Expired
- 1980-09-10 PT PT71786A patent/PT71786B/pt unknown
- 1980-09-12 ES ES495020A patent/ES8105529A1/es not_active Expired
- 1980-09-12 JP JP12707080A patent/JPS5647111A/ja active Pending
- 1980-09-12 IE IE1924/80A patent/IE50791B1/en unknown
- 1980-09-12 DK DK389780A patent/DK389780A/da not_active Application Discontinuation
- 1980-09-12 US US06/186,770 patent/US4360787A/en not_active Expired - Lifetime
- 1980-10-09 NZ NZ195215A patent/NZ195215A/en unknown
-
1984
- 1984-06-18 SG SG440/84A patent/SG44084G/en unknown
- 1984-10-11 HK HK767/84A patent/HK76784A/xx unknown
Also Published As
Publication number | Publication date |
---|---|
NO149264B (no) | 1983-12-05 |
CA1157100A (en) | 1983-11-15 |
NO149264C (no) | 1984-03-14 |
EP0025681A2 (de) | 1981-03-25 |
EP0025681A3 (en) | 1981-04-15 |
ATE6715T1 (de) | 1984-03-15 |
AU538419B2 (en) | 1984-08-16 |
US4360787A (en) | 1982-11-23 |
DK389780A (da) | 1981-03-15 |
DE3066992D1 (en) | 1984-04-19 |
NZ195215A (en) | 1984-10-19 |
AU6199680A (en) | 1981-03-19 |
ZA805415B (en) | 1981-08-26 |
PT71786A (en) | 1980-10-01 |
JPS5647111A (en) | 1981-04-28 |
IE801924L (en) | 1981-03-14 |
ES495020A0 (es) | 1981-06-01 |
EP0025681B1 (de) | 1984-03-14 |
IE50791B1 (en) | 1986-07-23 |
PT71786B (en) | 1981-06-30 |
ES8105529A1 (es) | 1981-06-01 |
NO802608L (no) | 1981-03-16 |
SG44084G (en) | 1985-09-13 |
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