MXPA05013203A - Receptor optoco que tiene un circuito de control de ganancia automatica de ciclo abierto. - Google Patents

Receptor optoco que tiene un circuito de control de ganancia automatica de ciclo abierto.

Info

Publication number
MXPA05013203A
MXPA05013203A MXPA05013203A MXPA05013203A MXPA05013203A MX PA05013203 A MXPA05013203 A MX PA05013203A MX PA05013203 A MXPA05013203 A MX PA05013203A MX PA05013203 A MXPA05013203 A MX PA05013203A MX PA05013203 A MXPA05013203 A MX PA05013203A
Authority
MX
Mexico
Prior art keywords
input
optical receiver
gain control
open loop
automatic gain
Prior art date
Application number
MXPA05013203A
Other languages
English (en)
Inventor
John Skrobko
Original Assignee
Scientific Atlanta
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 Scientific Atlanta filed Critical Scientific Atlanta
Publication of MXPA05013203A publication Critical patent/MXPA05013203A/es

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/60—Receivers
    • H04B10/66—Non-coherent receivers, e.g. using direct detection
    • H04B10/69—Electrical arrangements in the receiver
    • H04B10/693—Arrangements for optimizing the preamplifier in the receiver
    • H04B10/6931—Automatic gain control of the preamplifier

Abstract

La presente invencion se dirige hacia un receptor optico que tiene un circuito de control de ganancia automatica de ciclo abierto (AGC). Las senales opticas recibidas por el receptor optico se convierten en senales electricas por medio de un fotodiodo. Las senales electricas se amplifican subsecuentemente a traves de una etapa de amplificador de salida y entada. La senal amplificada se convierte asi en senales RF y se proporcionan a un puerto de salida para mayor transmision. De manera concurrente, el circuito AGC detecta el nivel de energia optica de entrada en el fotodiodo de entrada. El nivel de energia optica de entrada se compara con un voltaje de referencia, proporcionando de tal modo un voltaje diferente. El voltaje diferente se aplica a etapas de amplificador de salida y entrada para corregir las senales electricas a fin de asegurar un nivel de energia de salida constante.
MXPA05013203A 2003-06-06 2004-06-07 Receptor optoco que tiene un circuito de control de ganancia automatica de ciclo abierto. MXPA05013203A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/456,817 US7599629B2 (en) 2003-06-06 2003-06-06 Optical receiver having an open loop automatic gain control circuit
PCT/US2004/017980 WO2004109938A2 (en) 2003-06-06 2004-06-07 Optical receiver having an open loop automatic gain control circuit

Publications (1)

Publication Number Publication Date
MXPA05013203A true MXPA05013203A (es) 2006-03-09

Family

ID=33490242

Family Applications (1)

Application Number Title Priority Date Filing Date
MXPA05013203A MXPA05013203A (es) 2003-06-06 2004-06-07 Receptor optoco que tiene un circuito de control de ganancia automatica de ciclo abierto.

Country Status (6)

Country Link
US (1) US7599629B2 (es)
EP (1) EP1649603B1 (es)
JP (1) JP2006527545A (es)
CA (1) CA2528260C (es)
MX (1) MXPA05013203A (es)
WO (1) WO2004109938A2 (es)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100630181B1 (ko) * 2004-10-08 2006-09-29 삼성전자주식회사 비디오 오버레이 광 수신기
JP4550712B2 (ja) * 2005-10-17 2010-09-22 ルネサスエレクトロニクス株式会社 受光回路
JP2007189571A (ja) * 2006-01-16 2007-07-26 Dx Antenna Co Ltd 光受信機
US7548696B2 (en) * 2006-02-15 2009-06-16 Scientific-Atlanta, Inc. Fiber-to-the-home (FTTH) optical receiver with distributed gain control
US8824701B2 (en) * 2011-02-11 2014-09-02 Fairchild Semiconductor Corporation Determining automatic gain control levels
US8849230B2 (en) 2011-03-03 2014-09-30 Sony Corporation Attenuator and method for attenuating
JP6952713B2 (ja) 2016-01-19 2021-10-20 マジック リープ， インコーポレイテッドＭａｇｉｃ Ｌｅａｐ，Ｉｎｃ． 反射を利用する拡張現実システムおよび方法
WO2017147527A1 (en) 2016-02-24 2017-08-31 Magic Leap, Inc. Polarizing beam splitter with low light leakage
NZ787464A (en) 2016-04-26 2023-06-30 Magic Leap Inc Electromagnetic tracking with augmented reality systems

Family Cites Families (47)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2238023A (en) * 1939-03-23 1941-04-08 Esme E Rosaire Equalizer
GB1302272A (es) * 1970-02-27 1973-01-04
JPS5442959A (en) * 1977-08-19 1979-04-05 Nec Corp Variable resistance attenuator
JPS6057728B2 (ja) * 1977-12-26 1985-12-17 日本電気株式会社 可変抵抗減衰器
JPS57168513A (en) * 1981-04-09 1982-10-16 Nec Corp Automatic gain controlling system of optical receiver
US4459557A (en) * 1982-02-04 1984-07-10 Mcquilken Mark A Compressor limiter for audio signal processing
JPS58155153U (ja) * 1982-04-13 1983-10-17 三菱電機株式会社 光受信機
JPS59148403A (ja) * 1983-02-15 1984-08-25 Nippon Telegr & Teleph Corp <Ntt> スロツト線路化定抵抗可変減衰器
JPS61182908U (es) * 1985-05-07 1986-11-14
JPS61267404A (ja) * 1985-05-21 1986-11-27 Mitsubishi Electric Corp 光受信装置
JPS6266745A (ja) 1985-09-18 1987-03-26 Toshiba Corp 復調装置
JPS63301610A (ja) * 1987-05-29 1988-12-08 Sony Tektronix Corp 可変減衰器
US4975604A (en) * 1987-05-29 1990-12-04 Triquint Semiconductor, Inc. Automatic return-loss optimization of a variable fet attenuator
US4875023A (en) * 1988-05-10 1989-10-17 Grumman Aerospace Corporation Variable attenuator having voltage variable FET resistor with chosen resistance-voltage relationship
JPH0722246B2 (ja) * 1988-07-25 1995-03-08 デイエツクスアンテナ株式会社 温度補償回路
JPH0323846U (es) * 1989-07-14 1991-03-12
JPH04138704A (ja) * 1990-09-28 1992-05-13 Fujitsu Ltd 光受信装置
US5282072A (en) * 1991-11-19 1994-01-25 Harmonic Lightwaves, Inc. Shunt-expansive predistortion linearizers for optical analog transmitters
JPH05206780A (ja) * 1991-12-03 1993-08-13 Nec Corp 可変減衰器
JPH06140993A (ja) * 1992-10-23 1994-05-20 Fujitsu Ltd 光受信器
JPH0758563A (ja) * 1993-08-18 1995-03-03 Hitachi Ltd ステップ減衰器
JP3202867B2 (ja) 1993-09-07 2001-08-27 松下電器産業株式会社 信号圧縮回路および光送信器
JPH088978A (ja) * 1994-06-23 1996-01-12 Oki Electric Ind Co Ltd 信号伝送回路
JP3425235B2 (ja) * 1994-09-13 2003-07-14 株式会社東芝 可変減衰器
JPH08172236A (ja) 1994-12-15 1996-07-02 Nec Corp Ａｐｃ回路
JPH08265073A (ja) * 1995-03-20 1996-10-11 Fujitsu Ltd Ａｇｃ回路
US5666089A (en) * 1996-04-12 1997-09-09 Hewlett-Packard Company Monolithic step attenuator having internal frequency compensation
GB2314714B (en) * 1996-06-26 2000-04-05 Northern Telecom Ltd Optical amplifier modules
US5912599A (en) * 1997-10-21 1999-06-15 Trw Inc. Bandwidth compensated bridged-tee attenuator
JPH11127039A (ja) * 1997-10-24 1999-05-11 Nec Corp 光受信回路と光受信方法
JPH11163803A (ja) * 1997-11-28 1999-06-18 Nec Corp 光信号受信装置
US6137607A (en) 1998-02-23 2000-10-24 Lucent Technologies Inc. Broadband communications method and apparatus for reducing optical beat interference
JP3839577B2 (ja) 1998-03-11 2006-11-01 富士通株式会社 半導体レーザ駆動回路
JP2000033775A (ja) * 1998-07-17 2000-02-02 Taiyo Yuden Co Ltd 光情報記録媒体
JP3967472B2 (ja) * 1998-09-07 2007-08-29 富士通株式会社 Ｃｄｍａ受信機
JP3511934B2 (ja) * 1999-03-02 2004-03-29 富士通株式会社 伝送路インタフェース・モジュール及び伝送システム
JP2000261290A (ja) * 1999-03-10 2000-09-22 Matsushita Electric Ind Co Ltd 高周波可変減衰器および高周波可変減衰器の制御方法
JP3593646B2 (ja) 1999-03-19 2004-11-24 富士通株式会社 バースト光送信回路
WO2001011740A1 (fr) 1999-08-03 2001-02-15 Fujitsu Limited Circuit de commande d'un laser a semi-conducteur et procede associe
JP2002044030A (ja) 2000-07-28 2002-02-08 Victor Co Of Japan Ltd 光無線通信装置
US20040253003A1 (en) * 2001-07-05 2004-12-16 Wave 7 Optics, Inc. Gain compensating optical receiver circuit
EP1289137A1 (en) * 2001-08-06 2003-03-05 Semiconductor Ideas to The Market (ItoM) BV Integrated RC Filter
US6674967B2 (en) 2001-11-14 2004-01-06 Scientific-Atlanta, Inc. Fiber-to-the-home (FTTH) optical receiver having gain control and a remote enable
ATE354215T1 (de) * 2002-07-11 2007-03-15 Koninkl Philips Electronics Nv Optische empfängerschaltung
US6885873B2 (en) * 2002-12-19 2005-04-26 Intel Corporation Adaptively extending tunable range of frequency in a closed loop
EP1458115A1 (en) * 2003-03-10 2004-09-15 Alcatel Attenuator for ADSL signals
JP4755502B2 (ja) * 2006-02-02 2011-08-24 日本オプネクスト株式会社 光受信機

Also Published As

Publication number Publication date
CA2528260A1 (en) 2004-12-16
US7599629B2 (en) 2009-10-06
JP2006527545A (ja) 2006-11-30
EP1649603A4 (en) 2009-08-12
EP1649603B1 (en) 2014-02-19
CA2528260C (en) 2011-04-26
WO2004109938A2 (en) 2004-12-16
EP1649603A2 (en) 2006-04-26
US20040247327A1 (en) 2004-12-09
WO2004109938A3 (en) 2006-04-13

Similar Documents

Publication Publication Date Title
AU6902000A (en) Automatic gain control loop for frequency conversion of quadrature signals
WO2001037436A3 (en) Complex filtering/agc radio receiver architecture for low-if or zero-if
US6778021B2 (en) Wide dynamic range transimpedance amplifier with a controlled low frequency cutoff at high optical power
JP2009010741A (ja) 前置増幅器および光受信装置
EP1237297A3 (en) Radio communication terminal &amp; gain control circuit for the same
WO2009014740A3 (en) Reduced distortion radio frequency amplifiers
AU2002302637A1 (en) Automatic gain control circuit and an rf receiver and method using such a circuit
MXPA05013203A (es) Receptor optoco que tiene un circuito de control de ganancia automatica de ciclo abierto.
US7355471B2 (en) Circuit for DC offset cancellation
US7899420B2 (en) Wireless transmission device in which transmission output is controlled in feedback control
TW200707897A (en) Amplifier circuit having a compensating amplifier unit for improving loop gain and linearity
US20200083846A1 (en) Reconfigurable optical receivers for extended maximum input signals
GB2381162A (en) Wireless transmitter and device for mobile station
EP1176813A3 (en) Image sensor
WO2007008314A3 (en) Rf receiver, wireless communication terminal and method of operation
CN201733383U (zh) 有线电视光自动增益控制电路单元
AU2003244981A1 (en) Optical receiver circuit
WO2005025056A8 (ja) 自動利得制御増幅装置、受信機器及び無線通信機器
CN201063634Y (zh) 光接收机
KR100536667B1 (ko) 고전력 검출 장치
JP2508962B2 (ja) 光受信信号レベル制御装置
EP1519481A4 (en) AUTOMATIC GAIN CONTROL CIRCUIT (AGC)
KR200299862Y1 (ko) 기지국시스템의 업컨버터 자동이득조절장치
JP2002171177A (ja) 中間周波数がゼロである構造の送信機で、ｈｔｂ技術によるパワー増幅器を使用可能にする制御方法および回路
US6687490B2 (en) Transmission apparatus and method for a mobile communication terminal

Legal Events

Date Code Title Description
FG Grant or registration