CN1034459C - 动态范围增大器 - Google Patents

动态范围增大器 Download PDF

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Publication number
CN1034459C
CN1034459C CN92103443A CN92103443A CN1034459C CN 1034459 C CN1034459 C CN 1034459C CN 92103443 A CN92103443 A CN 92103443A CN 92103443 A CN92103443 A CN 92103443A CN 1034459 C CN1034459 C CN 1034459C
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CN
China
Prior art keywords
signal
level
signal level
input
output
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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
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CN92103443A
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English (en)
Chinese (zh)
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CN1067143A (zh
Inventor
保罗·亨德里克·莱莫桑
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AT&T Labs Inc
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Southwestern Bell Technology Resources Inc
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Publication of CN1067143A publication Critical patent/CN1067143A/zh
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Publication of CN1034459C publication Critical patent/CN1034459C/zh
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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    • 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
    • H03G3/3084—Automatic control in amplifiers having semiconductor devices in receivers or transmitters for electromagnetic waves other than radiowaves, e.g. lightwaves
    • 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
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0298—Wavelength-division multiplex systems with sub-carrier multiplexing [SCM]

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Transmitters (AREA)
  • Mobile Radio Communication Systems (AREA)
CN92103443A 1991-05-22 1992-05-11 动态范围增大器 Expired - Fee Related CN1034459C (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/704,114 US5321849A (en) 1991-05-22 1991-05-22 System for controlling signal level at both ends of a transmission link based on a detected valve
US704,114 1991-05-22

Publications (2)

Publication Number Publication Date
CN1067143A CN1067143A (zh) 1992-12-16
CN1034459C true CN1034459C (zh) 1997-04-02

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN92103443A Expired - Fee Related CN1034459C (zh) 1991-05-22 1992-05-11 动态范围增大器

Country Status (7)

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US (2) US5321849A (enExample)
CN (1) CN1034459C (enExample)
AU (1) AU2027192A (enExample)
CA (1) CA2109587A1 (enExample)
MX (1) MX9202375A (enExample)
TW (1) TW198124B (enExample)
WO (1) WO1992021179A1 (enExample)

Families Citing this family (198)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6847611B1 (en) 1990-12-10 2005-01-25 At&T Corp. Traffic management for frame relay switched data service
US5678198A (en) * 1991-05-22 1997-10-14 Southwestern Bell Technology Resources, Inc. System for controlling signal level at both ends of a transmission link, based upon a detected value
US5321849A (en) * 1991-05-22 1994-06-14 Southwestern Bell Technology Resources, Inc. System for controlling signal level at both ends of a transmission link based on a detected valve
US5627879A (en) 1992-09-17 1997-05-06 Adc Telecommunications, Inc. Cellular communications system with centralized base stations and distributed antenna units
US5420711A (en) * 1993-01-19 1995-05-30 Snyder; Dan E. Fiber optic link amplitude stabilization circuit
US5434850A (en) 1993-06-17 1995-07-18 Skydata Corporation Frame relay protocol-based multiplex switching scheme for satellite
US6771617B1 (en) 1993-06-17 2004-08-03 Gilat Satellite Networks, Ltd. Frame relay protocol-based multiplex switching scheme for satellite mesh network
JPH07143056A (ja) * 1993-09-24 1995-06-02 Hitachi Ltd 移動体通信装置
JPH07176969A (ja) * 1993-12-03 1995-07-14 Nec Corp 歪対策受信回路
US6018358A (en) * 1994-06-09 2000-01-25 Trilithic, Inc. Radio frequency leakage detection system for CATV system
US5634191A (en) * 1994-10-24 1997-05-27 Pcs Microcell International, Inc. Self-adjusting RF repeater arrangements for wireless telephone systems
US5918166A (en) * 1994-11-30 1999-06-29 Nec Corportion Level control circuit for portable radio communication apparatus
US5722063A (en) * 1994-12-16 1998-02-24 Qualcomm Incorporated Method and apparatus for increasing receiver immunity to interference
US6122482A (en) * 1995-02-22 2000-09-19 Global Communications, Inc. Satellite broadcast receiving and distribution system
US6333690B1 (en) * 1995-03-29 2001-12-25 Medical Tracking Systems Wide area multipurpose tracking system
US5523875A (en) * 1995-04-24 1996-06-04 Scientific-Atlanta, Inc. Automatic gain control circuit
US5721757A (en) * 1996-03-20 1998-02-24 Lucent Technologies Inc. Automatic gain control loop
US5786923A (en) * 1996-03-29 1998-07-28 Dominion Communications, Llc Point-to-multipoint wide area telecommunications network via atmospheric laser transmission through a remote optical router
US6348986B1 (en) 1996-03-29 2002-02-19 Dominion Lasercom. Inc. Wireless fiber-coupled telecommunication systems based on atmospheric transmission of laser signals
US6931183B2 (en) 1996-03-29 2005-08-16 Dominion Lasercom, Inc. Hybrid electro-optic cable for free space laser antennas
SE9601620L (sv) * 1996-04-29 1997-10-30 Radio Design Innovation Tj Ab Anpassningsbar radiomottagarapparat
US6025947A (en) * 1996-05-02 2000-02-15 Fujitsu Limited Controller which controls a variable optical attenuator to control the power level of a wavelength-multiplexed optical signal when the number of channels are varied
US6369938B1 (en) * 1996-05-28 2002-04-09 Fujitsu Limited Multi-wavelength light amplifier
KR100206468B1 (ko) * 1996-05-31 1999-07-01 윤종용 이동통신 시스템의 출력제어 장치 및 방법
US5907798A (en) * 1996-06-21 1999-05-25 Lucent Technologies Inc. Wireless telephone intermodulation performance enhancement techniques
US5909645A (en) * 1996-06-21 1999-06-01 Lucent Technologies Inc. Receiver with dynamic attenuation control for adaptive intermodulation performance enhancement
US6580905B1 (en) * 1996-07-02 2003-06-17 Ericsson Inc. System and method for controlling the level of signals output to transmission media in a distributed antenna network
US6108385A (en) * 1996-07-08 2000-08-22 Silicon Wireless Limited Method and apparatus for reducing intermodulation distortion in digital wideband transmission systems
FR2753285B1 (fr) * 1996-09-06 1998-10-09 Alsthom Cge Alcatel Amplificateur optique a semi conducteur
WO1998017062A1 (en) * 1996-10-11 1998-04-23 The Whitaker Corporation Level control for a broadband distribution system
JPH10145250A (ja) * 1996-11-12 1998-05-29 Nec Corp 無線受信装置
IL119972A (en) * 1997-01-07 2001-01-28 Foxcom Ltd Satellite distributed television
US20060280140A9 (en) * 1997-02-06 2006-12-14 Mahany Ronald L LOWER POWER WIRELESS BEACONING NETWORK SUPPORTING PROXIMAL FORMATION, SEPARATION AND REFORMATION OF WIRELESS LOCAL AREA NETWORKS (LAN's), AS TERMINALS MOVE IN AND OUT RANGE OF ONE ANOTHER
WO1998045956A1 (en) * 1997-04-08 1998-10-15 Lgc Wireless, Inc. Rf distribution system providing fixed wireless local loop service and increased antenna functionality
US6115589A (en) * 1997-04-29 2000-09-05 Motorola, Inc. Speech-operated noise attenuation device (SONAD) control system method and apparatus
US6215514B1 (en) 1997-06-27 2001-04-10 Trilithic, Inc. Ingress monitoring system
US6081524A (en) 1997-07-03 2000-06-27 At&T Corp. Frame relay switched data service
US6307593B1 (en) * 1997-10-03 2001-10-23 Wavetek Corporation Pulsed leakage tagging signal
JPH11112435A (ja) * 1997-10-07 1999-04-23 Fujitsu Ltd 光増幅器
JP3979712B2 (ja) * 1997-10-20 2007-09-19 富士通株式会社 光信号受信装置および方法
KR100492000B1 (ko) * 1997-12-10 2005-08-29 주식회사 팬택앤큐리텔 무선가입자망시스템의기지국용주파수하향변환기
KR100289284B1 (ko) * 1997-12-27 2001-05-02 박종섭 이동통신 시스템 기지국의 순방향 전력제어장치 및 그 제어방법
US6603596B2 (en) * 1998-03-19 2003-08-05 Fujitsu Limited Gain and signal level adjustments of cascaded optical amplifiers
JP3874145B2 (ja) * 1998-06-10 2007-01-31 ソニー株式会社 変調回路、送信装置及び送信回路
US6052566A (en) * 1998-06-26 2000-04-18 Lucent Technologies Inc. Combined RSSI/SNR-driven intermodulation-mitigation scheme for CDMA terminals
US6268946B1 (en) * 1998-07-01 2001-07-31 Radio Frequency Systems, Inc. Apparatus for communicating diversity signals over a transmission medium
US6445732B1 (en) * 1998-09-23 2002-09-03 Conexant Systems, Inc. Dynamic range reduction circuitry for a digital communications receiver
JP4063419B2 (ja) * 1998-10-06 2008-03-19 松下電器産業株式会社 光伝送システム
EP0994575A1 (en) * 1998-10-12 2000-04-19 Hewlett-Packard Company Extraction of primary and co-channel signals using propagation path metrics
JP3173484B2 (ja) * 1998-12-10 2001-06-04 日本電気株式会社 減衰器、無線通信器および受信レベルの制御方法
JP3512154B2 (ja) * 1999-01-25 2004-03-29 松下電器産業株式会社 基地局装置
WO2000046937A1 (en) * 1999-02-05 2000-08-10 Interdigital Technology Corporation Communication station with automatic cable loss compensation
US7123939B1 (en) * 1999-02-05 2006-10-17 Interdigital Technology Corporation Communication station with automatic cable loss compensation
US6374083B1 (en) * 1999-03-01 2002-04-16 Nokia Corporation Apparatus, and associated method, for selectively modifying characteristics of the receive signal received at a receiving station
JP3554218B2 (ja) * 1999-03-17 2004-08-18 富士通株式会社 電力制御回路および送信機
US6611150B1 (en) 1999-03-31 2003-08-26 Sadelco, Inc. Leakage detector for use in combination with a signal level meter
US7969965B2 (en) * 1999-04-21 2011-06-28 Lgc Wireless, Inc. Architecture for signal and power distribution in wireless data network
US8379569B2 (en) * 1999-04-21 2013-02-19 Adc Telecommunications, Inc. Architecture for signal distribution in wireless data network
US6522984B1 (en) * 1999-07-01 2003-02-18 Canberra Industries, Inc. Instant pole-zero corrector for digital radiation spectrometers and the same with automatic attenuator calibration
US6804826B1 (en) 1999-07-28 2004-10-12 Trilithic, Inc. Radio frequency leakage detection system for CATV system
US6434135B1 (en) * 1999-08-31 2002-08-13 Interdigital Technology Corporation Adaptive RF amplifier prelimiter
KR100680075B1 (ko) * 1999-09-13 2007-02-09 유티스타콤코리아 유한회사 코드 분할 다중 접속방식 이동통신 기지국 시스템의 무선주파수 수신장치에서 에프에이간 전력레벨 제어장치
US6658269B1 (en) * 1999-10-01 2003-12-02 Raytheon Company Wireless communications system
US6207949B1 (en) * 1999-11-10 2001-03-27 Telcordia Technologies, Inc. Method and apparatus for stabilizing attenuators in optical networks
US7206420B2 (en) * 1999-11-29 2007-04-17 Syfx Tekworks Softclip method and apparatus
JP3991543B2 (ja) 2000-01-11 2007-10-17 株式会社日立製作所 撮像装置
US6813510B1 (en) * 2000-01-11 2004-11-02 Lucent Technologies Inc. System for automatically adjusting receive path gain
EP2094058B1 (en) 2000-03-27 2013-01-16 LGC Wireless, LLC A radio frequency signal distribution system
US6625238B2 (en) * 2000-03-29 2003-09-23 Sony Corporation Low power and high linearity receivers with reactively biased front ends
US6782062B1 (en) * 2000-03-29 2004-08-24 Sony Corporation Low power and high linearity receivers with reactively biased front ends
US6668028B1 (en) * 2000-03-29 2003-12-23 Sony Corporation Low-power CDMA receiver
CA2442592C (en) * 2000-03-29 2009-12-22 Transcept Opencell, Inc. Operations and maintenance architecture for multiprotocol distributed system
US6473597B1 (en) * 2000-04-12 2002-10-29 Thomas M. Johnson Method and apparatus for modeling transmitter bandwidth for telecommunications analysis
US7003275B1 (en) * 2000-05-18 2006-02-21 Broadband Innovations, Inc. Agile frequency converter for multichannel systems using IF-RF level exhange and tunable filters
US6704545B1 (en) 2000-07-19 2004-03-09 Adc Telecommunications, Inc. Point-to-multipoint digital radio frequency transport
WO2002025843A1 (en) * 2000-09-21 2002-03-28 Nokia Corporation Method and system for transmitting a signal via a non-linear transmission unit
US20030058511A1 (en) * 2000-09-21 2003-03-27 Leonid Bogod Method and system for transmitting a signal via a non linear transmission unit
EP1226670A1 (en) * 2000-09-21 2002-07-31 Nokia Corporation Method and system for transmitting a signal via a non-linear transmission unit
US7471935B2 (en) * 2000-10-23 2008-12-30 Intel Corporation Automatic level control
EP1209635A1 (fr) * 2000-11-24 2002-05-29 eSecurium SA Télécommande securisée
US6782212B2 (en) * 2001-02-14 2004-08-24 National Science Council Coherent optical communication receiver of satellite optical communication system
US7006483B2 (en) 2001-02-23 2006-02-28 Ipr Licensing, Inc. Qualifying available reverse link coding rates from access channel power setting
US6404284B1 (en) * 2001-04-19 2002-06-11 Anadigics, Inc. Amplifier bias adjustment circuit to maintain high-output third-order intermodulation distortion performance
US7061993B2 (en) * 2001-08-29 2006-06-13 Sony Corporation CDMA receiver architecture for lower bypass switch point
KR100438177B1 (ko) * 2001-12-04 2004-07-01 엘지전자 주식회사 억세스 포인트의 신호 처리 장치 및 방법
US6687491B2 (en) * 2002-01-18 2004-02-03 Sony Corporation Direct conversion of low power high linearity receiver
US7184728B2 (en) * 2002-02-25 2007-02-27 Adc Telecommunications, Inc. Distributed automatic gain control system
US7412208B1 (en) * 2002-03-11 2008-08-12 Agilent Technologies, Inc. Transmission system for transmitting RF signals, power and control signals via RF coaxial cables
FR2838190B1 (fr) 2002-04-08 2004-10-15 Cit Alcatel Dispositif de mesure et/ou de controle dynamique de perte de puissance dans une ligne de transmission optique a canal de supervision, et procede associe
US8744366B1 (en) * 2002-04-15 2014-06-03 Richard K. Steen Digitally programmable circuit for controlling an attenuator
US7184730B2 (en) * 2002-05-03 2007-02-27 Motorola, Inc. Automatic gain control system having a wide range of continuous gain control
US6831901B2 (en) * 2002-05-31 2004-12-14 Opencell Corporation System and method for retransmission of data
US7177606B2 (en) * 2002-07-10 2007-02-13 General Instrument Corporation Control system for controlling an output signal power level of a wireless transmitter
US20040092185A1 (en) * 2002-11-13 2004-05-13 Grafe Timothy H. Wipe material with nanofiber layer
US7171244B2 (en) * 2002-12-03 2007-01-30 Adc Telecommunications, Inc. Communication system and method with gain control for signals from distributed antennas
US7103377B2 (en) * 2002-12-03 2006-09-05 Adc Telecommunications, Inc. Small signal threshold and proportional gain distributed digital communications
US8958789B2 (en) 2002-12-03 2015-02-17 Adc Telecommunications, Inc. Distributed digital antenna system
US20040126107A1 (en) * 2002-12-31 2004-07-01 Intelligent Photonics Control Corporation Optical control system
US7277685B2 (en) * 2003-04-17 2007-10-02 Realtek Semiconductor Corp. Automatic gain control of multiple antenna OFDM receiver
US7257078B2 (en) * 2003-04-17 2007-08-14 Realtek Semiconductor Corp. Multiple antenna OFDM transceiver and method for transceiving
US7567172B2 (en) * 2003-08-26 2009-07-28 Nelson Bernard C Wide area multipurpose tracking system
JP2005175826A (ja) * 2003-12-10 2005-06-30 Matsushita Electric Ind Co Ltd 光ファイバ無線伝送システム、送信装置及び受信装置
DE102004025576B4 (de) * 2004-05-25 2006-03-30 Infineon Technologies Ag Sende-und Empfangsanordnung mit einer Regelung zur Störsignalunterdrückung
EP1605655A3 (en) * 2004-06-07 2008-02-27 Broadcom Corporation Upstream power cutback
KR100615535B1 (ko) * 2004-07-26 2006-08-25 삼성전자주식회사 Ａｇｃ를 이용한 무선 수신장치 및 수신방법
ES2259888B1 (es) * 2004-10-27 2007-10-01 Fagor, S. Coop. Cabecera de recepcion de tv, con un circuito de control automatico de los niveles de salida.
DE102005002195A1 (de) * 2005-01-17 2006-07-27 Siemens Ag Verfahren und Anordnung zur Regeneration eines optischen Datensignals
US7787854B2 (en) * 2005-02-01 2010-08-31 Adc Telecommunications, Inc. Scalable distributed radio network
US7583735B2 (en) * 2005-03-31 2009-09-01 Adc Telecommunications, Inc. Methods and systems for handling underflow and overflow in a software defined radio
US7640019B2 (en) * 2005-03-31 2009-12-29 Adc Telecommunications, Inc. Dynamic reallocation of bandwidth and modulation protocols
US7423988B2 (en) * 2005-03-31 2008-09-09 Adc Telecommunications, Inc. Dynamic reconfiguration of resources through page headers
US7593450B2 (en) * 2005-03-31 2009-09-22 Adc Telecommunications, Inc. Dynamic frequency hopping
US7398106B2 (en) * 2005-03-31 2008-07-08 Adc Telecommunications, Inc. Dynamic readjustment of power
US20060222020A1 (en) * 2005-03-31 2006-10-05 Adc Telecommunications, Inc. Time start in the forward path
US20070008939A1 (en) * 2005-06-10 2007-01-11 Adc Telecommunications, Inc. Providing wireless coverage into substantially closed environments
US7797694B2 (en) * 2005-09-19 2010-09-14 Adc Telecommunications, Inc. Mechanism to upgrade system capability without affecting service
US20070071450A1 (en) * 2005-09-29 2007-03-29 Adc Telecommunications, Inc. Systems and methods for optical power window control
US7729620B2 (en) * 2005-09-29 2010-06-01 Adc Telecommunications, Inc. Methods and systems for controlling optical power attenuation
US8207777B1 (en) * 2005-11-21 2012-06-26 Analog Devices, Inc. Compensation with ratiometric attenuation
US7603093B2 (en) * 2005-12-14 2009-10-13 Adc Telecommunications, Inc. System and method to monitor broadband radio frequency transport systems
CN101371492B (zh) * 2006-01-17 2012-08-15 美国博通公司 以太网供电控制器及对供电设备检测和分级的方法
US20070195905A1 (en) * 2006-02-21 2007-08-23 Adc Telecommunications, Inc. Forward error correction in wideband digital RF transport systems
US7610046B2 (en) * 2006-04-06 2009-10-27 Adc Telecommunications, Inc. System and method for enhancing the performance of wideband digital RF transport systems
US7805073B2 (en) * 2006-04-28 2010-09-28 Adc Telecommunications, Inc. Systems and methods of optical path protection for distributed antenna systems
EP1860803A1 (en) 2006-05-22 2007-11-28 Alcatel Lucent Method and system for optical transmission signal level configuration
US20080008604A1 (en) * 2006-07-06 2008-01-10 Bristol Compressors, Inc. High-frequency control of devices internal to a hermetic compressor
US8287245B2 (en) * 2006-07-06 2012-10-16 Bristol Compressors International, Inc. System and method for control of devices internal to a hermetic compressor
US7962174B2 (en) * 2006-07-12 2011-06-14 Andrew Llc Transceiver architecture and method for wireless base-stations
US7844273B2 (en) * 2006-07-14 2010-11-30 Lgc Wireless, Inc. System for and method of for providing dedicated capacity in a cellular network
US7848770B2 (en) * 2006-08-29 2010-12-07 Lgc Wireless, Inc. Distributed antenna communications system and methods of implementing thereof
US7817958B2 (en) * 2006-12-22 2010-10-19 Lgc Wireless Inc. System for and method of providing remote coverage area for wireless communications
US8583100B2 (en) 2007-01-25 2013-11-12 Adc Telecommunications, Inc. Distributed remote base station system
US8737454B2 (en) 2007-01-25 2014-05-27 Adc Telecommunications, Inc. Modular wireless communications platform
US7660570B2 (en) * 2007-03-12 2010-02-09 John Mezzalingua Associates, Inc. Active step attenuator
US20080227441A1 (en) * 2007-03-12 2008-09-18 Adc Telecommunications, Inc. Systems and methods for a universal base station
US8005050B2 (en) * 2007-03-23 2011-08-23 Lgc Wireless, Inc. Localization of a mobile device in distributed antenna communications system
US20080240225A1 (en) * 2007-03-27 2008-10-02 Adc Telecommunications, Inc. Method and system for enhancing the performance of wideband digital rf transport systems
US8457562B2 (en) * 2007-03-27 2013-06-04 Adc Telecommunications, Inc. Digitized reverse link monitor
US7668153B2 (en) * 2007-03-27 2010-02-23 Adc Telecommunications, Inc. Method for data converter sample clock distribution
US20120230683A1 (en) * 2007-04-23 2012-09-13 Constantin Lacatus System and Method for Remotely Monitoring Communication Equipment and Signals
US8010116B2 (en) * 2007-06-26 2011-08-30 Lgc Wireless, Inc. Distributed antenna communications system
US7948897B2 (en) * 2007-08-15 2011-05-24 Adc Telecommunications, Inc. Delay management for distributed communications networks
US7974244B2 (en) * 2007-08-21 2011-07-05 Adc Telecommunications, Inc. Method and system for reducing uplink noise in wireless communication systems
US9112547B2 (en) * 2007-08-31 2015-08-18 Adc Telecommunications, Inc. System for and method of configuring distributed antenna communications system
US8462661B2 (en) * 2007-09-21 2013-06-11 Adc Dsl Systems, Inc. Auto-discovery in a switch
JP2009130809A (ja) * 2007-11-27 2009-06-11 Nec Electronics Corp 通信装置
JP5412444B2 (ja) 2008-02-08 2014-02-12 エイディシィ・テレコミュニケーションズ・インコーポレイテッド ライセンスを取得した無線周波数スペクトルおよびセッション開始プロトコルを使用してセルラーワイヤレスサービスを提供するための企業モバイルネットワーク
WO2009114738A2 (en) * 2008-03-12 2009-09-17 Hypres, Inc. Digital radio-frequency tranceiver system and method
US8310963B2 (en) * 2008-06-24 2012-11-13 Adc Telecommunications, Inc. System and method for synchronized time-division duplex signal switching
US7961689B2 (en) * 2008-08-18 2011-06-14 Adc Telecommunications, Inc. Method and apparatus for determining an end of a subframe in a TDD system
EP2159933B1 (en) * 2008-08-28 2013-03-27 Alcatel Lucent Levelling amplifiers in a distributed antenna system
US20100080198A1 (en) * 2008-09-30 2010-04-01 Adc Telecommunications, Inc. Internet protocol cellular private branch exchange
US8305993B2 (en) * 2008-09-30 2012-11-06 Altobridge Limited Integration of a private cellular system into a unified communications solution
US20100135674A1 (en) * 2008-12-02 2010-06-03 Adc Telecommunications, Inc. Complex optical modulation for real time communication
US8165169B2 (en) * 2008-12-02 2012-04-24 Adc Telecommunications, Inc. Clock priority chain level systems and methods
US8184745B2 (en) * 2008-12-04 2012-05-22 Altobridge Limited System and method of generating soft bits
USRE47466E1 (en) 2009-01-13 2019-06-25 Commscope Technologies Llc Systems and methods for IP communication over a distributed antenna system transport
US8213401B2 (en) 2009-01-13 2012-07-03 Adc Telecommunications, Inc. Systems and methods for IP communication over a distributed antenna system transport
WO2010083182A2 (en) 2009-01-13 2010-07-22 Adc Telecommunications, Inc. Systems and methods for improved digital rf transport in distributed antenna systems
US8346278B2 (en) * 2009-01-13 2013-01-01 Adc Telecommunications, Inc. Systems and methods for mobile phone location with digital distributed antenna systems
EP2392075A4 (en) 2009-01-27 2013-08-07 Adc Telecommunications Inc METHOD AND APPARATUS FOR DIGITIALLY EQUALIZING A SIGNAL IN A DISTRIBUTED ANTENNA SYSTEM
US8306563B2 (en) * 2009-01-29 2012-11-06 Adc Telecommunications, Inc. Method and apparatus for muting a digital link in a distributed antenna system
US8676214B2 (en) * 2009-02-12 2014-03-18 Adc Telecommunications, Inc. Backfire distributed antenna system (DAS) with delayed transport
US20100208777A1 (en) * 2009-02-17 2010-08-19 Adc Telecommunications, Inc. Distributed antenna system using gigabit ethernet physical layer device
US8270522B2 (en) * 2009-04-13 2012-09-18 Altobridge Limited Joint channel estimation and modulation detection
US8379761B2 (en) * 2009-04-13 2013-02-19 Altobridge Limited Smooth modulation switching
US9001811B2 (en) * 2009-05-19 2015-04-07 Adc Telecommunications, Inc. Method of inserting CDMA beacon pilots in output of distributed remote antenna nodes
US8229393B2 (en) * 2009-06-26 2012-07-24 Altobridge Limited Private cellular system with auto-registration functionality
WO2011020479A1 (en) * 2009-08-18 2011-02-24 Verigy (Singapore) Pte. Ltd. Optimized automated test equipment multi-path receiver concept
US8472579B2 (en) 2010-07-28 2013-06-25 Adc Telecommunications, Inc. Distributed digital reference clock
US8532242B2 (en) 2010-10-27 2013-09-10 Adc Telecommunications, Inc. Distributed antenna system with combination of both all digital transport and hybrid digital/analog transport
US8462683B2 (en) 2011-01-12 2013-06-11 Adc Telecommunications, Inc. Distinct transport path for MIMO transmissions in distributed antenna systems
US8743718B2 (en) 2011-06-21 2014-06-03 Adc Telecommunications, Inc. End-to-end delay management for distributed communications networks
US9065691B2 (en) 2011-10-24 2015-06-23 Mediatek Inc. Sliced transmitter front-end
CN103067035B (zh) * 2011-10-24 2015-11-18 联发科技股份有限公司 切片式传送器前端电路及相关方法
US8693342B2 (en) 2011-10-28 2014-04-08 Adc Telecommunications, Inc. Distributed antenna system using time division duplexing scheme
US9117099B2 (en) * 2011-12-19 2015-08-25 Avatekh, Inc. Method and apparatus for signal filtering and for improving properties of electronic devices
KR102161668B1 (ko) 2013-02-22 2020-10-05 콤스코프 테크놀로지스 엘엘씨 분산형 안테나 시스템으로부터 소싱된 기지국 네트워크 인터페이스를 위한 마스터 기준
US9178636B2 (en) 2013-02-22 2015-11-03 Adc Telecommunications, Inc. Universal remote radio head
US9450689B2 (en) 2013-10-07 2016-09-20 Commscope Technologies Llc Systems and methods for delay management in distributed antenna system with direct digital interface to base station
US9787457B2 (en) 2013-10-07 2017-10-10 Commscope Technologies Llc Systems and methods for integrating asynchronous signals in distributed antenna system with direct digital interface to base station
EP3058659B1 (en) 2013-10-17 2020-02-19 Telefonaktiebolaget LM Ericsson (publ) Method and apparatus for automatic gain control
US10285160B2 (en) * 2013-10-31 2019-05-07 Lg Electronics Inc. Broadcast channel transmitting method through massive MIMO in wireless communication system and apparatus therefor
AU2015219260A1 (en) 2014-02-18 2016-08-25 Commscope Technologies Llc Selectively combining uplink signals in distributed antenna systems
US9596322B2 (en) 2014-06-11 2017-03-14 Commscope Technologies Llc Bitrate efficient transport through distributed antenna systems
CN104617902A (zh) * 2014-12-16 2015-05-13 上海新纳通信技术有限公司 一种利用光功率自动控制有线电视光接收机增益的方法
US9667312B2 (en) * 2015-01-13 2017-05-30 Hughes Network Systems, Llc Radio based automatic level control for linear radio calibration
US10499269B2 (en) 2015-11-12 2019-12-03 Commscope Technologies Llc Systems and methods for assigning controlled nodes to channel interfaces of a controller
US10404499B2 (en) * 2016-12-22 2019-09-03 Intel Corporation Dispersion compensation for waveguide communication channels
US10171057B1 (en) * 2018-03-21 2019-01-01 Elenion Technologies, Llc Automatic gain control loop
US11005573B2 (en) * 2018-11-20 2021-05-11 Macom Technology Solutions Holdings, Inc. Optic signal receiver with dynamic control
US11159248B2 (en) * 2019-12-18 2021-10-26 Teradyne, Inc. Optical receiving device
JP7232211B2 (ja) * 2020-04-17 2023-03-02 アンリツ株式会社 信号発生装置及び信号発生方法
US12013423B2 (en) 2020-09-30 2024-06-18 Macom Technology Solutions Holdings, Inc. TIA bandwidth testing system and method
US11658630B2 (en) 2020-12-04 2023-05-23 Macom Technology Solutions Holdings, Inc. Single servo loop controlling an automatic gain control and current sourcing mechanism
CN112671360A (zh) * 2020-12-30 2021-04-16 四川长虹电器股份有限公司 多通道可控增益放大器
US11394471B1 (en) * 2021-03-24 2022-07-19 The United States Of America As Represented By The Secretary Of The Army High-power radio frequency (RF) power detector
US11894873B2 (en) * 2022-06-29 2024-02-06 Raytheon Company Photonic integrated circuit with inverted H-tree unit cell design

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4553105A (en) * 1983-01-31 1985-11-12 Fujitsu Limited Multistage linear amplifier for a wide range of input signal levels

Family Cites Families (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL151596B (nl) * 1964-10-06 1976-11-15 Philips Nv Communicatiestelsel voor de tweedraadsoverdracht van signalen tussen een beginpost en een eindpost over een transmissieleiding.
US3444469A (en) * 1965-04-16 1969-05-13 Nippon Electric Co Variable-emphasis communications system of the frequency or phasemodulation type
US3518585A (en) * 1966-12-30 1970-06-30 Texas Instruments Inc Voltage controlled a.c. signal attenuator
US4004224A (en) * 1972-01-17 1977-01-18 Siemens Aktiengesellschaft Method for fade correction of communication transmission over directional radio paths
IT995990B (it) * 1973-10-19 1975-11-20 Ates Componenti Elettron Attenuatore attivo a minima distorsione armonica totale per amplificatori in alternata con controllo automatico del livello d uscita
US4169219A (en) * 1977-03-30 1979-09-25 Beard Terry D Compander noise reduction method and apparatus
US4188587A (en) * 1978-06-26 1980-02-12 Motorola, Inc. Linear gain control apparatus utilizing feed forward level control
FR2452208A1 (fr) * 1979-03-20 1980-10-17 Thomson Csf Tete h.f. a dynamique autoadaptative et recepteur comportant une telle tete h.f.
JPS5639641A (en) * 1979-09-07 1981-04-15 Toshiba Corp Light communication system
NL190093C (nl) * 1979-12-17 1993-10-18 Victor Company Of Japan Comprimeer- en expandeerstelsel.
JPS583406A (ja) * 1981-06-30 1983-01-10 Fujitsu Ltd ディジタル形自動利得制御方法
DE3144289A1 (de) * 1981-11-07 1983-05-19 Blaupunkt-Werke Gmbh, 3200 Hildesheim Rundfunkempfaenger
US4545075A (en) * 1981-11-18 1985-10-01 Times Fiber Communications, Inc. Satellite block transmission using wideband fiber optic links
US4457020A (en) * 1982-12-27 1984-06-26 Rockwell International Corporation Signal processing device for use on radio links
US4531234A (en) * 1983-02-14 1985-07-23 International Jensen Incorporated Optimizing antenna interface for automobile radio receivers
GB8305858D0 (en) * 1983-03-03 1983-04-07 Indep Broadcasting Authority Noise reduction for video
JPS6035844A (ja) * 1983-08-08 1985-02-23 Fujitsu Ltd 光信号受信回路
GB2162400B (en) * 1984-07-11 1988-01-06 Matsushita Electric Industrial Co Ltd Analog optical transmission system
US4665560A (en) * 1985-05-20 1987-05-12 Texas Instruments Incorporated Wide band automatic gain control with limiting amplifiers
US4769853A (en) * 1985-06-27 1988-09-06 Trw Inc. High dynamic range fiber optical link
US4654891A (en) * 1985-09-12 1987-03-31 Clyde Smith Optical communication of video information with distortion correction
US4754495A (en) * 1985-12-16 1988-06-28 Minori Kawano Cell enhancer for cellular radio telephone system having bandpass filter arrangement
US4910791A (en) * 1985-12-26 1990-03-20 Am Communications, Inc. Monitoring and control of data communications
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
US4811423A (en) * 1986-12-23 1989-03-07 Motorola, Inc. SSB receiver with improved feedforward AGC
US4772956A (en) * 1987-06-02 1988-09-20 Eastman Kodak Company Dual block still video compander processor
US4849711A (en) * 1987-09-04 1989-07-18 Digital Equipment Corporation Automatic gain control system
US4893300A (en) * 1988-08-01 1990-01-09 American Telephone And Telegraph Company Technique for reducing distortion characteristics in fiber-optic links
US4947459A (en) * 1988-11-25 1990-08-07 Honeywell, Inc. Fiber optic link noise measurement and optimization system
US5067147A (en) * 1989-11-07 1991-11-19 Pactel Corporation Microcell system for cellular telephone system
US5321849A (en) * 1991-05-22 1994-06-14 Southwestern Bell Technology Resources, Inc. System for controlling signal level at both ends of a transmission link based on a detected valve

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4553105A (en) * 1983-01-31 1985-11-12 Fujitsu Limited Multistage linear amplifier for a wide range of input signal levels

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US5457811A (en) 1995-10-10
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