NO995609L - AGC-system - Google Patents
AGC-systemInfo
- Publication number
- NO995609L NO995609L NO19995609A NO995609A NO995609L NO 995609 L NO995609 L NO 995609L NO 19995609 A NO19995609 A NO 19995609A NO 995609 A NO995609 A NO 995609A NO 995609 L NO995609 L NO 995609L
- Authority
- NO
- Norway
- Prior art keywords
- input
- signal
- output
- coupled
- receive
- Prior art date
Links
- 238000001514 detection method Methods 0.000 abstract 2
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
- H03G3/3089—Control of digital or coded signals
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/001—Digital control of analog signals
Landscapes
- Control Of Amplification And Gain Control (AREA)
Abstract
En automatisk forsterkningskontrollsystem som omfatter en systeminngang, en systemutgang, detekteringsorganer innret- tet til å konvertere et inngangssignal til en indikasjon på signalnivå, hvor detekteringsorganene inkluderer en like- retter og et 60 tapp FIR-filter med et Chebychev-vindu, en AGC-tilstandsmaskin koblet for å motta nevnte indikasjon og avgi et kontrollsignal for forsterkningsnivå, hvilken til- standsmaskin er innrettet til å justere nevnte kontrollsig- nal for forsterkningsnivå når det er et signal tilstede på systeminngangen, en forsterker med variabel forsterkning med en inngang koblet for å motta inngangssignalet fra sys- teminngangen, en utgang koblet til systemutgangen, og en kontrollinngang koblet for å motta nevnte kontrollsignal for forsterkningsnivå, for å kontrollere forsterkningen i nevnte forsterker med variabel forsterkning, for å kunne holde signalnivået på utgangen vesentlig konstant, ettersom nivået på inngangssignalet varierer.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NO19995609A NO995609L (no) | 1999-11-15 | 1999-11-15 | AGC-system |
US09/711,609 US6433633B1 (en) | 1999-11-15 | 2000-11-13 | Automatic gain control system with signal presence conditioning |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NO19995609A NO995609L (no) | 1999-11-15 | 1999-11-15 | AGC-system |
Publications (2)
Publication Number | Publication Date |
---|---|
NO995609D0 NO995609D0 (no) | 1999-11-15 |
NO995609L true NO995609L (no) | 2001-05-16 |
Family
ID=19903987
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO19995609A NO995609L (no) | 1999-11-15 | 1999-11-15 | AGC-system |
Country Status (2)
Country | Link |
---|---|
US (1) | US6433633B1 (no) |
NO (1) | NO995609L (no) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20030120484A1 (en) * | 2001-06-12 | 2003-06-26 | David Wong | Method and system for generating colored comfort noise in the absence of silence insertion description packets |
US7276967B2 (en) * | 2005-07-01 | 2007-10-02 | Sanyo Electric Co., Ltd. | Signal level adjusting apparatus, gain value updating method, and program |
US9401685B2 (en) * | 2012-06-08 | 2016-07-26 | Apple Inc. | Systems and methods for adjusting automatic gain control |
US20140073278A1 (en) * | 2012-09-10 | 2014-03-13 | Uniband Electronic Corp. | RSSI estimation based on VGA control and threshold detection |
CN110365302B (zh) * | 2019-06-14 | 2023-03-28 | 中国人民解放军空军工程大学 | 一种通信系统自动增益控制方法及装置 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3848194A (en) * | 1973-07-16 | 1974-11-12 | Matsushita Electric Co Ltd | Automatic gain control circuit |
US5016205A (en) | 1989-04-27 | 1991-05-14 | Motorola, Inc. | Digital signal processor based AGC |
JPH03175708A (ja) * | 1989-12-04 | 1991-07-30 | Fujitsu Ltd | 自動利得制御回路 |
US5369711A (en) * | 1990-08-31 | 1994-11-29 | Bellsouth Corporation | Automatic gain control for a headset |
US6201443B1 (en) * | 1997-11-20 | 2001-03-13 | Applied Micro Circuits Corporation | Radio frequency variable gain amplifier fabricated in complementary metal oxide semiconductor technology |
-
1999
- 1999-11-15 NO NO19995609A patent/NO995609L/no not_active Application Discontinuation
-
2000
- 2000-11-13 US US09/711,609 patent/US6433633B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US6433633B1 (en) | 2002-08-13 |
NO995609D0 (no) | 1999-11-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB2334394A (en) | Amplifier switch controller and system | |
KR970075964A (ko) | 파장 다중화 광섬유 증폭기용 파워 레벨 제어기 | |
CA2363400A1 (en) | System and method for inverting automatic gain control (agc) and soft limiting | |
CA2159976A1 (en) | Method and apparatus for leveling audio output | |
EP2209232A3 (en) | Gain and signal level adjustments of cascaded optical amplifiers | |
WO2003027967A3 (en) | Method and apparatus for coin or object sensing using adaptive operating point control | |
AU2001288461A1 (en) | Power amplifier saturation detection and compensation | |
EP1271868A3 (en) | Burst mode receiving apparatus having offset compensating function and data recovery method thereof | |
EP1130772A3 (en) | Automatic gain controller and automatic gain control method, and radio communications apparatus equipped with automatic gain control function | |
ATE257297T1 (de) | System mit durch rückkopplung kontrollierten optischen verstärkern | |
NO995609L (no) | AGC-system | |
TW324098B (en) | Automatic gain control circuit and method for full gain control | |
KR900002985B1 (en) | Automatic gain control circuit | |
US4333724A (en) | Photoelectric detector | |
WO1998056108A3 (en) | Automatic gain control circuit, e.g. for use in a hard disk drive | |
EP0939504A3 (en) | Infrared signal receiver with attenuating circuit | |
DK1020041T3 (da) | Fremgangsmåde og apparat til forögelse af modtagerimmunitet over for interferens | |
JPS57183607A (en) | Automatic eliminating device for undesired signal of recorder | |
JPS5939616Y2 (ja) | 信号処理回路 | |
JPS56169443A (en) | Detecting circuit for input signal interruption | |
EP1104183A3 (en) | Receiving device, and television receiver and recording and reproducing apparatus which use the device. | |
JPS5754444A (en) | Optical communication system | |
JPS5715544A (en) | Automatic threshold value control system for optical communication receiving system | |
JPS5369507A (en) | Pilot signal detecting circuit | |
JPS5742218A (en) | Delay automatic gain control circuit |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
FC2A | Withdrawal, rejection or dismissal of laid open patent application |