CA2062776C - Digital automatic gain control - Google Patents
Digital automatic gain controlInfo
- Publication number
- CA2062776C CA2062776C CA002062776A CA2062776A CA2062776C CA 2062776 C CA2062776 C CA 2062776C CA 002062776 A CA002062776 A CA 002062776A CA 2062776 A CA2062776 A CA 2062776A CA 2062776 C CA2062776 C CA 2062776C
- Authority
- CA
- Canada
- Prior art keywords
- receiver
- error signal
- gain
- predetermined time
- signal
- 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
- 238000000034 method Methods 0.000 claims description 21
- 238000001914 filtration Methods 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 4
- 230000001413 cellular effect Effects 0.000 claims description 4
- 230000003247 decreasing effect Effects 0.000 claims 2
- 238000005259 measurement Methods 0.000 claims 2
- 230000004044 response Effects 0.000 abstract description 5
- 230000007246 mechanism Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 10
- 230000015654 memory Effects 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- 238000004891 communication Methods 0.000 description 3
- 238000012935 Averaging Methods 0.000 description 2
- 230000002238 attenuated effect Effects 0.000 description 2
- 239000000969 carrier Substances 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 101150034533 ATIC gene Proteins 0.000 description 1
- YFONKFDEZLYQDH-OPQQBVKSSA-N N-[(1R,2S)-2,6-dimethyindan-1-yl]-6-[(1R)-1-fluoroethyl]-1,3,5-triazine-2,4-diamine Chemical compound C[C@@H](F)C1=NC(N)=NC(N[C@H]2C3=CC(C)=CC=C3C[C@@H]2C)=N1 YFONKFDEZLYQDH-OPQQBVKSSA-N 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 101150014126 incG gene Proteins 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000013139 quantization Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/52—TPC using AGC [Automatic Gain Control] circuits or amplifiers
-
- 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
- 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
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/16—Circuits
- H04B1/30—Circuits for homodyne or synchrodyne receivers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
- H04L27/22—Demodulator circuits; Receiver circuits
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Control Of Amplification And Gain Control (AREA)
- Circuits Of Receivers In General (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US51590090A | 1990-04-27 | 1990-04-27 | |
| US515,900 | 1990-04-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2062776A1 CA2062776A1 (en) | 1991-10-28 |
| CA2062776C true CA2062776C (en) | 1996-06-04 |
Family
ID=24053240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002062776A Expired - Fee Related CA2062776C (en) | 1990-04-27 | 1991-04-09 | Digital automatic gain control |
Country Status (8)
| Country | Link |
|---|---|
| EP (1) | EP0484476A4 (ko) |
| JP (1) | JP2586214B2 (ko) |
| KR (1) | KR950009559B1 (ko) |
| AU (1) | AU635134B2 (ko) |
| BR (1) | BR9105733A (ko) |
| CA (1) | CA2062776C (ko) |
| FI (1) | FI107089B (ko) |
| WO (1) | WO1991017606A1 (ko) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5509030A (en) * | 1992-03-04 | 1996-04-16 | Alcatel Network Systems, Inc. | RF receiver AGC incorporating time domain equalizer circuity |
| JPH05327378A (ja) * | 1992-05-22 | 1993-12-10 | Toshiba Corp | 無線通信装置の自動利得制御回路 |
| DE4332161A1 (de) * | 1993-09-22 | 1995-03-23 | Thomson Brandt Gmbh | Hochfrequenzempfänger |
| DE69433879T2 (de) * | 1993-09-30 | 2005-08-25 | Skyworks Solutions, Inc., Irvine | Basisstation für ein digitales schnurloses Telefon mit Mehrfachantennenanordnung |
| JP3274055B2 (ja) * | 1996-01-29 | 2002-04-15 | 沖電気工業株式会社 | スペクトル拡散方式に従う受信機の飽和防止回路 |
| EP0859462A4 (en) * | 1996-09-05 | 1999-11-24 | Mitsubishi Electric Corp | METHOD FOR GAIN CONTROL AND RELATED RECEIVERS |
| KR100595839B1 (ko) * | 1999-10-04 | 2006-07-05 | 에스케이 텔레콤주식회사 | 잡음신호를 이용한 이득 보상 장치 및 그 방법 |
| SG93224A1 (en) * | 2000-02-02 | 2002-12-17 | Koninkl Philips Electronics Nv | Measuring antenna signal strength with automatic gain control receiver |
| EP1458117B1 (en) * | 2000-10-19 | 2006-07-05 | Interdigital Technology Corporation | TDD receiver with selectively activated agc signal measurement unit |
| US7085255B2 (en) | 2000-10-19 | 2006-08-01 | Interdigital Technology Corporation | Selectively activated AGC signal measurement unit |
| GB2400272B (en) * | 2003-04-04 | 2006-08-02 | Ubinetics Ltd | Method of controlling the transmit power of a mobile communications device |
| DE10343835B4 (de) * | 2003-09-22 | 2005-07-28 | Infineon Technologies Ag | Amplitudenkomprimierung von Signalen in einem Mehrträgersystem |
| US7817731B2 (en) | 2003-09-22 | 2010-10-19 | Infineon Technologies Ag | Amplitude compression of signals in a multicarrier system |
| JP5407596B2 (ja) * | 2009-06-30 | 2014-02-05 | 株式会社リコー | 無線通信装置及び信号強度の測定方法 |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4227256A (en) * | 1978-01-06 | 1980-10-07 | Quadracast Systems, Inc. | AM Broadcast tuner with automatic gain control |
| JPS5544225A (en) * | 1978-09-25 | 1980-03-28 | Nec Corp | Time sharing gain adjustment circuit |
| US4191995A (en) * | 1979-01-02 | 1980-03-04 | Bell Telephone Laboratories, Incorporated | Digital automatic gain control circuit |
| JPS5752741A (en) * | 1980-09-12 | 1982-03-29 | Toshiba Corp | Liquid heating apparatus |
| FR2520952A1 (fr) * | 1982-02-03 | 1983-08-05 | Trt Telecom Radio Electr | Dispositif de controle automatique de gain (cag) a action rapide |
| JPS6027234A (ja) * | 1983-07-22 | 1985-02-12 | Nec Corp | 受信機 |
| 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 |
| DK163699C (da) * | 1986-02-11 | 1992-08-17 | Poul Richter Joergensen | Fremgangsmaade til automatisk forstaerkningsstyring af et signal samt et kredsloeb til udoevelse af fremgangsmaaden |
| US4696027A (en) * | 1986-08-01 | 1987-09-22 | Motorola, Inc. | Handoff apparatus and method with interference reduction for a radio system |
| IE64560B1 (en) * | 1988-11-30 | 1995-08-23 | Motorola Inc | Digital automatic gain control |
-
1991
- 1991-04-09 EP EP19910907940 patent/EP0484476A4/en not_active Withdrawn
- 1991-04-09 WO PCT/US1991/002409 patent/WO1991017606A1/en active IP Right Grant
- 1991-04-09 KR KR1019910701981A patent/KR950009559B1/ko not_active IP Right Cessation
- 1991-04-09 CA CA002062776A patent/CA2062776C/en not_active Expired - Fee Related
- 1991-04-09 JP JP3507876A patent/JP2586214B2/ja not_active Expired - Fee Related
- 1991-04-09 BR BR919105733A patent/BR9105733A/pt not_active Application Discontinuation
- 1991-04-09 AU AU76895/91A patent/AU635134B2/en not_active Ceased
- 1991-12-27 FI FI916141A patent/FI107089B/fi active
Also Published As
| Publication number | Publication date |
|---|---|
| AU7689591A (en) | 1991-11-27 |
| CA2062776A1 (en) | 1991-10-28 |
| JPH04507182A (ja) | 1992-12-10 |
| WO1991017606A1 (en) | 1991-11-14 |
| BR9105733A (pt) | 1992-05-19 |
| FI107089B (fi) | 2001-05-31 |
| FI916141A0 (fi) | 1991-12-27 |
| EP0484476A1 (en) | 1992-05-13 |
| AU635134B2 (en) | 1993-03-11 |
| KR950009559B1 (ko) | 1995-08-24 |
| KR920702803A (ko) | 1992-10-06 |
| EP0484476A4 (en) | 1993-02-24 |
| JP2586214B2 (ja) | 1997-02-26 |
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| CN115102612A (zh) | 增益控制方法、装置、增益控制器及信号接收端 | |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |