DE69028077D1 - Automatische Verstärkerschaltung - Google Patents
Automatische VerstärkerschaltungInfo
- Publication number
- DE69028077D1 DE69028077D1 DE69028077T DE69028077T DE69028077D1 DE 69028077 D1 DE69028077 D1 DE 69028077D1 DE 69028077 T DE69028077 T DE 69028077T DE 69028077 T DE69028077 T DE 69028077T DE 69028077 D1 DE69028077 D1 DE 69028077D1
- Authority
- DE
- Germany
- Prior art keywords
- amplifier circuit
- automatic amplifier
- automatic
- circuit
- amplifier
- 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
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
- H03G3/3078—Circuits generating control signals for digitally modulated signals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L7/00—Arrangements for synchronising receiver with transmitter
- H04L7/04—Speed or phase control by synchronisation signals
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1300889A JPH0812979B2 (ja) | 1989-11-21 | 1989-11-21 | 自動利得制御装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69028077D1 true DE69028077D1 (de) | 1996-09-19 |
DE69028077T2 DE69028077T2 (de) | 1996-12-19 |
Family
ID=17890345
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69028077T Expired - Fee Related DE69028077T2 (de) | 1989-11-21 | 1990-11-20 | Automatische Verstärkerschaltung |
Country Status (6)
Country | Link |
---|---|
US (1) | US5050192A (de) |
EP (1) | EP0430034B1 (de) |
JP (1) | JPH0812979B2 (de) |
AU (1) | AU630053B2 (de) |
CA (1) | CA2030355C (de) |
DE (1) | DE69028077T2 (de) |
Families Citing this family (41)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5184349A (en) * | 1991-01-16 | 1993-02-02 | Motorola, Inc. | Amplitude control of a burst signal in a receiver |
KR970000793B1 (ko) * | 1991-01-16 | 1997-01-20 | 모토로라 인코포레이티드 | 수신기 버스트 신호의 진폭제어 |
JPH056943U (ja) * | 1991-02-28 | 1993-01-29 | 株式会社東芝 | ゲインコントロール回路 |
JP2730347B2 (ja) * | 1991-10-09 | 1998-03-25 | 松下電器産業株式会社 | 受信機の自動利得制御方法 |
DE69220558T2 (de) * | 1991-12-18 | 1997-11-13 | Texas Instruments Inc | System zur Dynamikerhöhung eines Empfängers |
US5347537A (en) * | 1992-03-17 | 1994-09-13 | Clarion Co., Ltd. | Spread spectrum communication device |
JP3254733B2 (ja) * | 1992-06-16 | 2002-02-12 | 松下電器産業株式会社 | 自動利得制御回路 |
US5369533A (en) * | 1992-12-30 | 1994-11-29 | International Business Machines Corporation | Data storage device having different storage densities for differing types of data |
US5408695A (en) * | 1992-12-31 | 1995-04-18 | Coded Communications Corporation | Intelligent automatic deviation compensation for wireless modems |
AU673390B2 (en) * | 1993-01-20 | 1996-11-07 | Nec Corporation | An AGC circuit for burst signal |
JPH06244889A (ja) * | 1993-02-15 | 1994-09-02 | Fujitsu Ltd | モデム復調部用受信レベル調整回路 |
WO1996008925A1 (en) * | 1994-09-12 | 1996-03-21 | Scientific-Atlanta, Inc. | Cable television apparatus employing two-way communication |
US5568518A (en) * | 1994-09-14 | 1996-10-22 | Ericsson Ge Mobile Communications Inc. | Fast automatic gain control |
US5563916A (en) * | 1995-06-05 | 1996-10-08 | Hitachi America, Ltd. | Apparatus and method for varying the slew rate of a digital automatic gain control circuit |
GB2314705B (en) * | 1996-06-25 | 2000-06-28 | Nec Technologies | Frequency hopping communications receivers |
JP2993558B2 (ja) * | 1996-10-23 | 1999-12-20 | 日本電気株式会社 | 受信機 |
KR100208942B1 (ko) * | 1997-01-20 | 1999-07-15 | 윤종용 | 부호분할다중접속 통신시스템의 수신신호 전력레벨 추적장치 및 방법 |
US6148048A (en) * | 1997-09-26 | 2000-11-14 | Cirrus Logic, Inc. | Receive path implementation for an intermediate frequency transceiver |
JP3185872B2 (ja) * | 1998-05-21 | 2001-07-11 | 日本電気株式会社 | 自動利得制御回路 |
US7024221B2 (en) * | 2001-01-12 | 2006-04-04 | Silicon Laboratories Inc. | Notch filter for DC offset reduction in radio-frequency apparatus and associated methods |
US6993314B2 (en) | 1998-05-29 | 2006-01-31 | Silicon Laboratories Inc. | Apparatus for generating multiple radio frequencies in communication circuitry and associated methods |
US7221921B2 (en) | 1998-05-29 | 2007-05-22 | Silicon Laboratories | Partitioning of radio-frequency apparatus |
US7242912B2 (en) | 1998-05-29 | 2007-07-10 | Silicon Laboratories Inc. | Partitioning of radio-frequency apparatus |
US7035607B2 (en) | 1998-05-29 | 2006-04-25 | Silicon Laboratories Inc. | Systems and methods for providing an adjustable reference signal to RF circuitry |
US6970717B2 (en) * | 2001-01-12 | 2005-11-29 | Silicon Laboratories Inc. | Digital architecture for radio-frequency apparatus and associated methods |
US7092675B2 (en) * | 1998-05-29 | 2006-08-15 | Silicon Laboratories | Apparatus and methods for generating radio frequencies in communication circuitry using multiple control signals |
US6804497B2 (en) | 2001-01-12 | 2004-10-12 | Silicon Laboratories, Inc. | Partitioned radio-frequency apparatus and associated methods |
US7228109B2 (en) * | 2001-01-12 | 2007-06-05 | Silicon Laboratories Inc. | DC offset reduction in radio-frequency apparatus and associated methods |
JP2001024454A (ja) * | 1999-07-07 | 2001-01-26 | Matsushita Electric Ind Co Ltd | 自動利得制御装置及び方法、並びに自動利得制御機能を持った無線通信装置 |
JP2001077714A (ja) * | 1999-09-03 | 2001-03-23 | Matsushita Electric Ind Co Ltd | 無線受信機、無線受信方法および記録媒体 |
US20010048727A1 (en) * | 2000-01-10 | 2001-12-06 | Schmutz Thomas R. | Method and apparatus for automatic gain control on a time slot by time slot basis |
US6903617B2 (en) | 2000-05-25 | 2005-06-07 | Silicon Laboratories Inc. | Method and apparatus for synthesizing high-frequency signals for wireless communications |
US7177610B2 (en) * | 2001-01-12 | 2007-02-13 | Silicon Laboratories Inc. | Calibrated low-noise current and voltage references and associated methods |
US7031683B2 (en) * | 2001-01-12 | 2006-04-18 | Silicon Laboratories Inc. | Apparatus and methods for calibrating signal-processing circuitry |
US7138858B2 (en) | 2001-01-12 | 2006-11-21 | Silicon Laboratories, Inc. | Apparatus and methods for output buffer circuitry with constant output power in radio-frequency circuitry |
US20030232613A1 (en) * | 2001-01-12 | 2003-12-18 | Kerth Donald A. | Quadrature signal generation in radio-frequency apparatus and associated methods |
US7158574B2 (en) * | 2001-01-12 | 2007-01-02 | Silicon Laboratories Inc. | Digital interface in radio-frequency apparatus and associated methods |
US7035611B2 (en) * | 2001-01-12 | 2006-04-25 | Silicon Laboratories Inc. | Apparatus and method for front-end circuitry in radio-frequency apparatus |
KR101031735B1 (ko) * | 2002-03-15 | 2011-04-29 | 실리콘 래버래토리즈 인코포레이티드 | 무선주파수장치 및 관련 방법 |
US7443455B2 (en) * | 2003-12-30 | 2008-10-28 | Texas Instruments Incorporated | Automatic gain control based on multiple input references in a video decoder |
CN101563843B (zh) | 2006-12-21 | 2012-05-09 | 三菱电机株式会社 | 光接收器 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3958213A (en) * | 1975-01-03 | 1976-05-18 | Gte Sylvania Incorporated | Adaptive gain control and method for signal processor |
JPS568916A (en) * | 1979-07-04 | 1981-01-29 | Fujitsu Ltd | Unique word detecting circuit |
FR2520952A1 (fr) * | 1982-02-03 | 1983-08-05 | Trt Telecom Radio Electr | Dispositif de controle automatique de gain (cag) a action rapide |
JPS6094513A (ja) * | 1983-10-28 | 1985-05-27 | Victor Co Of Japan Ltd | 音量調整装置 |
US4625240A (en) * | 1984-07-25 | 1986-11-25 | Eeco, Inc. | Adaptive automatic gain control |
FR2576472B1 (fr) * | 1985-01-22 | 1988-02-12 | Alcatel Thomson Faisceaux | Procede et dispositif de commande automatique de gain d'un recepteur en acces multiple a repartition temporelle |
JPH063894B2 (ja) * | 1985-12-14 | 1994-01-12 | 日本電気株式会社 | 非同期デ−タ変換回路 |
DE3781698T2 (de) * | 1986-02-07 | 1993-02-11 | Matsushita Electric Ind Co Ltd | Geraet zur wiedergabe von digitalinformationen. |
JPS62216511A (ja) * | 1986-03-18 | 1987-09-24 | Nec Corp | 自動利得制御装置 |
CA1278610C (en) * | 1987-09-21 | 1991-01-02 | Eisaku Sasaki | Stepped square-qam demodulator utilizing all signal points to generate control signals |
US4989074A (en) * | 1988-09-27 | 1991-01-29 | Matsushita Electric Industrial Co., Ltd. | Digital automatic gain control apparatus |
-
1989
- 1989-11-21 JP JP1300889A patent/JPH0812979B2/ja not_active Expired - Lifetime
-
1990
- 1990-11-20 CA CA002030355A patent/CA2030355C/en not_active Expired - Fee Related
- 1990-11-20 DE DE69028077T patent/DE69028077T2/de not_active Expired - Fee Related
- 1990-11-20 EP EP90122177A patent/EP0430034B1/de not_active Expired - Lifetime
- 1990-11-21 AU AU66821/90A patent/AU630053B2/en not_active Ceased
- 1990-11-21 US US07/616,956 patent/US5050192A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0430034A2 (de) | 1991-06-05 |
JPH03162115A (ja) | 1991-07-12 |
AU630053B2 (en) | 1992-10-15 |
EP0430034B1 (de) | 1996-08-14 |
CA2030355A1 (en) | 1991-05-22 |
CA2030355C (en) | 1994-01-11 |
DE69028077T2 (de) | 1996-12-19 |
AU6682190A (en) | 1991-05-30 |
US5050192A (en) | 1991-09-17 |
EP0430034A3 (en) | 1991-10-16 |
JPH0812979B2 (ja) | 1996-02-07 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |