DE69623337T2 - Zwei-moden funkempfänger zum empfangen von breitband- und schmalbandsignalen - Google Patents

Zwei-moden funkempfänger zum empfangen von breitband- und schmalbandsignalen

Info

Publication number
DE69623337T2
DE69623337T2 DE69623337T DE69623337T DE69623337T2 DE 69623337 T2 DE69623337 T2 DE 69623337T2 DE 69623337 T DE69623337 T DE 69623337T DE 69623337 T DE69623337 T DE 69623337T DE 69623337 T2 DE69623337 T2 DE 69623337T2
Authority
DE
Germany
Prior art keywords
radio receivers
mode radio
narrowband signals
receiving broadband
broadband
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 - Lifetime
Application number
DE69623337T
Other languages
English (en)
Other versions
DE69623337D1 (de
Inventor
W Dent
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ericsson Inc
Original Assignee
Ericsson Inc
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 Ericsson Inc filed Critical Ericsson Inc
Application granted granted Critical
Publication of DE69623337D1 publication Critical patent/DE69623337D1/de
Publication of DE69623337T2 publication Critical patent/DE69623337T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • H04B1/0003—Software-defined radio [SDR] systems, i.e. systems wherein components typically implemented in hardware, e.g. filters or modulators/demodulators, are implented using software, e.g. by involving an AD or DA conversion stage such that at least part of the signal processing is performed in the digital domain
    • H04B1/0007—Software-defined radio [SDR] systems, i.e. systems wherein components typically implemented in hardware, e.g. filters or modulators/demodulators, are implented using software, e.g. by involving an AD or DA conversion stage such that at least part of the signal processing is performed in the digital domain wherein the AD/DA conversion occurs at radiofrequency or intermediate frequency stage
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G5/00—Tone control or bandwidth control in amplifiers
    • H03G5/16—Automatic control
    • H03G5/24—Automatic control in frequency-selective amplifiers
    • 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
    • H04B1/0003—Software-defined radio [SDR] systems, i.e. systems wherein components typically implemented in hardware, e.g. filters or modulators/demodulators, are implented using software, e.g. by involving an AD or DA conversion stage such that at least part of the signal processing is performed in the digital domain
    • 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
    • H04B1/005—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 adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
    • 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
    • H04B1/005—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 adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
    • H04B1/0053—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 adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with common antenna for more than one band
    • H04B1/0057—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 adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with common antenna for more than one band using diplexing or multiplexing filters for selecting the desired band
    • 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
    • H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
    • H04B1/1027—Means associated with receiver for limiting or suppressing noise or interference assessing signal quality or detecting noise/interference for the received signal
    • 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
    • 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
    • H04B1/26—Circuits for superheterodyne receivers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/12—Frequency diversity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
    • H04B7/2643—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using time-division multiple access [TDMA]
    • H04B7/2646—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using time-division multiple access [TDMA] for broadband transmission
    • 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
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • H04B1/403—Circuits using the same oscillator for generating both the transmitter frequency and the receiver local oscillator frequency
    • H04B1/406—Circuits using the same oscillator for generating both the transmitter frequency and the receiver local oscillator frequency with more than one transmission mode, e.g. analog and digital modes
    • 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
    • H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
    • H04B1/1027—Means associated with receiver for limiting or suppressing noise or interference assessing signal quality or detecting noise/interference for the received signal
    • H04B2001/1054—Means associated with receiver for limiting or suppressing noise or interference assessing signal quality or detecting noise/interference for the received signal by changing bandwidth

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Radio Transmission System (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Circuits Of Receivers In General (AREA)
  • Structure Of Receivers (AREA)
DE69623337T 1993-10-14 1996-03-01 Zwei-moden funkempfänger zum empfangen von breitband- und schmalbandsignalen Expired - Lifetime DE69623337T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US13554293A 1993-10-14 1993-10-14
PCT/US1996/003069 WO1997032403A1 (en) 1993-10-14 1996-03-01 Dual-mode radio receiver for receiving narrowband and wideband signals

Publications (2)

Publication Number Publication Date
DE69623337D1 DE69623337D1 (de) 2002-10-02
DE69623337T2 true DE69623337T2 (de) 2003-01-16

Family

ID=51452935

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69623337T Expired - Lifetime DE69623337T2 (de) 1993-10-14 1996-03-01 Zwei-moden funkempfänger zum empfangen von breitband- und schmalbandsignalen

Country Status (9)

Country Link
US (1) US5668837A (de)
EP (1) EP0883934B1 (de)
JP (1) JP3846738B2 (de)
CN (1) CN1106720C (de)
AU (1) AU716365B2 (de)
BR (1) BR9612534A (de)
CA (1) CA2247911A1 (de)
DE (1) DE69623337T2 (de)
WO (1) WO1997032403A1 (de)

Families Citing this family (101)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7924783B1 (en) * 1994-05-06 2011-04-12 Broadcom Corporation Hierarchical communications system
US6970434B1 (en) * 1995-06-07 2005-11-29 Broadcom Corporation Hierarchical communication system providing intelligent data, program and processing migration
US6195555B1 (en) 1994-01-11 2001-02-27 Ericsson Inc. Method of directing a call to a mobile telephone in a dual mode cellular satellite communication network
SG55053A1 (en) * 1994-01-11 1998-12-21 Erricsson Inc Position registration for cellular satellite communication systems
US6868270B2 (en) 1994-01-11 2005-03-15 Telefonaktiebolaget L.M. Ericsson Dual-mode methods, systems, and terminals providing reduced mobile terminal registrations
US6418324B1 (en) 1995-06-01 2002-07-09 Padcom, Incorporated Apparatus and method for transparent wireless communication between a remote device and host system
US5914990A (en) * 1995-11-22 1999-06-22 Telefonaktiebolaget Lm Ericsson Filtering in a receiver that uses log-polar signal processing
KR0159201B1 (ko) * 1995-12-06 1998-12-01 양승택 Cdma 시스템에서의 동기식 이중 채널 qpsk 변복조 장치 및 그 변복조방법
US7590083B2 (en) * 1995-12-07 2009-09-15 Transcore Link Logistics Corp. Wireless packet data distributed communications system
SE512927C2 (sv) * 1997-01-30 2000-06-05 Ericsson Telefon Ab L M Trådlös terminal arbetande enligt fler än ett luftgränssnittsprotokoll
US6151373A (en) * 1997-04-03 2000-11-21 At&T Corp. Weak signal resolver
US6169733B1 (en) * 1997-05-12 2001-01-02 Northern Telecom Limited Multiple mode capable radio receiver device
US6178314B1 (en) * 1997-06-27 2001-01-23 Visteon Global Technologies, Inc. Radio receiver with adaptive bandwidth controls at intermediate frequency and audio frequency sections
US6295461B1 (en) * 1997-11-03 2001-09-25 Intermec Ip Corp. Multi-mode radio frequency network system
JPH11346172A (ja) * 1998-03-30 1999-12-14 Kokusai Electric Co Ltd 受信機
US5970105A (en) * 1998-05-11 1999-10-19 Cleveland Medical Devices Inc. Apparatus and method for efficient wireless communications in the presence of frequency error
US5978365A (en) * 1998-07-07 1999-11-02 Orbital Sciences Corporation Communications system handoff operation combining turbo coding and soft handoff techniques
US6496546B1 (en) * 1998-07-15 2002-12-17 Lucent Technologies Inc. Software-defined transceiver for a wireless telecommunications system
US6192239B1 (en) 1998-07-29 2001-02-20 Nortel Networks Limited Handset based automatic call re-initiation for multi-mode handsets
JP3974712B2 (ja) * 1998-08-31 2007-09-12 富士通株式会社 ディジタル放送用送信・受信再生方法及びディジタル放送用送信・受信再生システム並びにディジタル放送用送信装置及びディジタル放送用受信再生装置
US6714898B1 (en) * 1998-09-02 2004-03-30 Anritsu Company Flexible noise figure measurement apparatus
GB2341993B (en) * 1998-09-25 2003-03-12 Nec Technologies Radio receivers
US6134427A (en) * 1998-09-30 2000-10-17 Conexant Systems, Inc. Using a single low-noise amplifier in a multi-band wireless station
US8078727B2 (en) 1998-10-09 2011-12-13 Netmotion Wireless, Inc. Method and apparatus for providing mobile and other intermittent connectivity in a computing environment
US6546425B1 (en) * 1998-10-09 2003-04-08 Netmotion Wireless, Inc. Method and apparatus for providing mobile and other intermittent connectivity in a computing environment
US8060656B2 (en) 1998-10-09 2011-11-15 Netmotion Wireless, Inc. Method and apparatus for providing mobile and other intermittent connectivity in a computing environment
US7136645B2 (en) 1998-10-09 2006-11-14 Netmotion Wireless, Inc. Method and apparatus for providing mobile and other intermittent connectivity in a computing environment
US7778260B2 (en) 1998-10-09 2010-08-17 Netmotion Wireless, Inc. Method and apparatus for providing mobile and other intermittent connectivity in a computing environment
US7293107B1 (en) 1998-10-09 2007-11-06 Netmotion Wireless, Inc. Method and apparatus for providing mobile and other intermittent connectivity in a computing environment
DK0998054T3 (da) * 1998-10-27 2002-04-08 Bosch Gmbh Robert Fremgangsmåde til estimering af et impulssvar af en signaltransmissionskanal og en mobil station
US6205334B1 (en) * 1998-11-24 2001-03-20 Ericsson Inc. Accelerated scanning of cellular channels by cellular radiotelephones
US6782264B2 (en) 1999-01-08 2004-08-24 Trueposition, Inc. Monitoring of call information in a wireless location system
US6873290B2 (en) * 1999-01-08 2005-03-29 Trueposition, Inc. Multiple pass location processor
US6765531B2 (en) 1999-01-08 2004-07-20 Trueposition, Inc. System and method for interference cancellation in a location calculation, for use in a wireless location system
US6463290B1 (en) 1999-01-08 2002-10-08 Trueposition, Inc. Mobile-assisted network based techniques for improving accuracy of wireless location system
US6334059B1 (en) 1999-01-08 2001-12-25 Trueposition, Inc. Modified transmission method for improving accuracy for e-911 calls
US7783299B2 (en) 1999-01-08 2010-08-24 Trueposition, Inc. Advanced triggers for location-based service applications in a wireless location system
WO2000041319A2 (en) * 1999-01-08 2000-07-13 Trueposition, Inc. Multiple demodulation protocols for a wireless location system
US6646604B2 (en) 1999-01-08 2003-11-11 Trueposition, Inc. Automatic synchronous tuning of narrowband receivers of a wireless location system for voice/traffic channel tracking
US6184829B1 (en) 1999-01-08 2001-02-06 Trueposition, Inc. Calibration for wireless location system
WO2000041402A2 (en) 1999-01-08 2000-07-13 Trueposition, Inc. A signal collection system
FR2788904A1 (fr) * 1999-01-27 2000-07-28 France Telecom Procede de traitement de signal pour radio logicielle et architecture de reception radio correspondante
US7882247B2 (en) 1999-06-11 2011-02-01 Netmotion Wireless, Inc. Method and apparatus for providing secure connectivity in mobile and other intermittent computing environments
EP1111803B1 (de) * 1999-12-23 2004-10-27 Motorola, Inc. Doppelmodus mit einem einzelnen Empfängerschaltkreis
US20010030988A1 (en) * 2000-03-31 2001-10-18 Fry Terry L. Spread spectrum, frequency hopping transceiver with frequency discriminator quadrature filter
JP2001345731A (ja) 2000-06-06 2001-12-14 Matsushita Electric Ind Co Ltd マルチモード携帯電話端末
JP2002033675A (ja) * 2000-07-13 2002-01-31 Sony Corp マルチバンド送受信用信号発生装置及び方法、並びにマルチバンド無線信号送受信装置
US6823170B1 (en) * 2000-07-26 2004-11-23 Ericsson Inc. Satellite communications system using multiple earth stations
US6859652B2 (en) 2000-08-02 2005-02-22 Mobile Satellite Ventures, Lp Integrated or autonomous system and method of satellite-terrestrial frequency reuse using signal attenuation and/or blockage, dynamic assignment of frequencies and/or hysteresis
US7289461B2 (en) * 2001-03-15 2007-10-30 Qualcomm Incorporated Communications using wideband terminals
US20020193090A1 (en) * 2001-05-23 2002-12-19 Sugar Gary L. System and method for dynamic sampling rate adjustment to minimize power consumption in wideband radios
US7644171B2 (en) 2001-09-12 2010-01-05 Netmotion Wireless, Inc. Mobile networking system and method using IPv4 and IPv6
WO2003036623A1 (de) * 2001-09-28 2003-05-01 Siemens Aktiengesellschaft Sprachextender und verfahren zum schätzen eines breitbandigen sprachsignals anhand eines schmalbandigen sprachsignals
US7020230B2 (en) 2001-12-28 2006-03-28 Tropian, Inc. Frequency synthesizer for dual mode receiver
GB0204108D0 (en) * 2002-02-21 2002-04-10 Analog Devices Inc 3G radio
US7221688B2 (en) * 2002-07-31 2007-05-22 Ibiquity Digital Corporation Method and apparatus for receiving a digital audio broadcasting signal
TW566011B (en) * 2002-09-23 2003-12-11 Ind Tech Res Inst Dual mode receiving method and device
SE0202847L (sv) * 2002-09-26 2004-03-27 Lars Edman Förfarande och anordning
US7203488B2 (en) * 2002-11-08 2007-04-10 Louis Luneau Flexible software radio transceiver
US6970685B2 (en) * 2003-02-14 2005-11-29 Ibiquity Digital Corporation Method and apparatus for dynamic filter selection in radio receivers
JP2004349805A (ja) * 2003-05-20 2004-12-09 Alpine Electronics Inc Ｉｂｏｃ放送受信機
US8204149B2 (en) 2003-12-17 2012-06-19 Qualcomm Incorporated Spatial spreading in a multi-antenna communication system
US7336746B2 (en) * 2004-12-09 2008-02-26 Qualcomm Incorporated Data transmission with spatial spreading in a MIMO communication system
US7433708B2 (en) 2004-02-04 2008-10-07 Nokia Corporation Variable bandwidth in a communication system
US8169889B2 (en) * 2004-02-18 2012-05-01 Qualcomm Incorporated Transmit diversity and spatial spreading for an OFDM-based multi-antenna communication system
US20050180312A1 (en) * 2004-02-18 2005-08-18 Walton J. R. Transmit diversity and spatial spreading for an OFDM-based multi-antenna communication system
US20050238111A1 (en) * 2004-04-09 2005-10-27 Wallace Mark S Spatial processing with steering matrices for pseudo-random transmit steering in a multi-antenna communication system
US8285226B2 (en) * 2004-05-07 2012-10-09 Qualcomm Incorporated Steering diversity for an OFDM-based multi-antenna communication system
US8923785B2 (en) * 2004-05-07 2014-12-30 Qualcomm Incorporated Continuous beamforming for a MIMO-OFDM system
US7110463B2 (en) * 2004-06-30 2006-09-19 Qualcomm, Incorporated Efficient computation of spatial filter matrices for steering transmit diversity in a MIMO communication system
US7978649B2 (en) * 2004-07-15 2011-07-12 Qualcomm, Incorporated Unified MIMO transmission and reception
US7978778B2 (en) 2004-09-03 2011-07-12 Qualcomm, Incorporated Receiver structures for spatial spreading with space-time or space-frequency transmit diversity
US7672258B1 (en) * 2004-09-24 2010-03-02 Nortel Networks Limited Signalling channel and radio system for power saving in wireless devices
US20070015472A1 (en) * 2005-07-15 2007-01-18 Simo Murtojarvi Multimode transmitter, module, communication device and chip set
CN100346579C (zh) * 2005-11-18 2007-10-31 杭州天寅无线通信有限公司 天线馈线信号的双模传输方法
US7933577B2 (en) * 2005-11-29 2011-04-26 Electronics And Telecommunications Research Institute Method and apparatus for sharing portable terminal in CDMA system and mobile RFID system
US8543070B2 (en) 2006-04-24 2013-09-24 Qualcomm Incorporated Reduced complexity beam-steered MIMO OFDM system
US8290089B2 (en) * 2006-05-22 2012-10-16 Qualcomm Incorporated Derivation and feedback of transmit steering matrix
US8265585B2 (en) * 2006-08-31 2012-09-11 Clarion Co., Ltd. IBOC broadcasting receiver
US8660104B2 (en) * 2006-09-29 2014-02-25 Broadcom Corporation Method and system for communicating information in a multi-antenna system
WO2008054306A2 (en) * 2006-11-01 2008-05-08 Telefonaktiebolaget Lm Ericsson (Publ) Method and arrangement for reducing power consumption in user equipments in multi-carrier radio systems.
KR100963513B1 (ko) 2006-12-04 2010-06-15 삼성전자주식회사 광대역 무선통신시스템의 프레임 구성 장치 및 방법
JP4274240B2 (ja) * 2006-12-28 2009-06-03 ブラザー工業株式会社 通信装置
US20080169878A1 (en) * 2007-01-12 2008-07-17 Giuseppe Resnati Low loss combiner for narrowband and wideband rf signals
EP2210352B1 (de) 2007-10-24 2020-05-06 LifeSignals, Inc. Systeme und netze für drahtlose halb- und vollduplexkommunikation unter verwendung mehrerer funkgeräte
US8879983B2 (en) * 2008-02-06 2014-11-04 Hmicro, Inc. Wireless communications systems using multiple radios
EP2239860B1 (de) * 2009-04-07 2012-08-15 The Swatch Group Research and Development Ltd. SIGNALEMPFÄNGER MIT FSK-MODULATION GROßER SENSIBILITÄT MIT GERINGEM DURCHSATZ
US8213957B2 (en) 2009-04-22 2012-07-03 Trueposition, Inc. Network autonomous wireless location system
CN102893530B (zh) * 2010-05-06 2014-09-17 联发科技股份有限公司 信号接收器与相关的信号接收方法
US10419063B2 (en) 2016-12-30 2019-09-17 Waviot Integrated Systems, Llc Method and system for receiving telemetry messages over RF channel
US10326556B2 (en) 2016-12-30 2019-06-18 Waviot Integrated Systems, Llc Method and system of frequency correction in LPWAN networks
WO2018126197A1 (en) 2016-12-30 2018-07-05 Waviot Integrated Systems, Llc A method for multichannel signal search and demodulation and tech nique to demodulate and detect dbpsk fdma ultra-narrow band signal
US10291363B2 (en) 2016-12-30 2019-05-14 Waviot Integrated Systems, Llc Method for simultaneous confirmation of many messages in low power wide area networks, and use of correction of frequency when transmitting data over UNB LPWAN networks, based on analysis of data obtained on receiving
WO2018126195A1 (en) * 2016-12-30 2018-07-05 Waviot Integrated Systems, Llc System-on-chip for low-speed noise-resistant data transmission
CN110447210A (zh) 2017-03-24 2019-11-12 瑞典爱立信有限公司 在窄带接收机中接收周期性宽带同步信号
RU2721157C1 (ru) 2017-03-24 2020-05-18 Телефонактиеболагет Лм Эрикссон (Пабл) Широкополосное обнаружение сигнала синхронизации в системе nr
US10711762B2 (en) 2017-07-20 2020-07-14 Jmcc Wing, Llc Wind energy systems
WO2019170875A1 (en) * 2018-03-09 2019-09-12 Nokia Solutions And Networks Oy Reception of signals from multiple sources
CN111030715B (zh) * 2019-02-26 2022-07-15 安天科技集团股份有限公司 窄带射频前端接收宽带射频信号的方法、装置及存储介质
CN111426889B (zh) * 2020-04-14 2022-04-29 中国科学院国家天文台 一种宽带双模数字接收机及其信号处理方法
CN113630732B (zh) * 2020-05-07 2022-07-22 海能达通信股份有限公司 一种融合通信方法、终端、系统及存储介质

Family Cites Families (38)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51127609A (en) * 1975-04-28 1976-11-06 Trio Kenwood Corp Switching circuit for band width of intermediate frequency amplifying stage of fm receiver
US4045740A (en) * 1975-10-28 1977-08-30 The United States Of America As Represented By The Secretary Of The Army Method for optimizing the bandwidth of a radio receiver
US4356567A (en) * 1977-06-28 1982-10-26 Pioneer Electronic Corporation Radio receiver with bandwidth switching
US4267605A (en) * 1979-02-26 1981-05-12 Trio Kabushiki Kaisha Interference eliminator in communication receiver
US4262361A (en) * 1979-06-29 1981-04-14 Edmac Associates, Inc. Variable bandwidth filtering and frequency converting system
US4352208A (en) * 1980-03-04 1982-09-28 Motorola, Inc. Automatic IF selectivity for radio receiver system
FR2490427B1 (fr) * 1980-09-16 1986-04-18 Thomson Csf Demodulateur d'un signal module en frequence et systeme de television comportant un tel demodulateur
JPS5793704A (en) * 1980-12-03 1982-06-10 Alps Electric Co Ltd Fm demodulation circuit
CA1190289A (en) * 1981-04-28 1985-07-09 Nippon Hoso Kyokai Fm signal demodulation system
US4406019A (en) * 1981-11-16 1983-09-20 The Bendix Corporation Selectivity means in amplitude modulated radio receivers
US4479257A (en) * 1982-12-30 1984-10-23 Yaesu Musen Co., Ltd. Superheterodyne circuit having variable bandwidth and center frequency shift function
US4792993A (en) * 1985-10-30 1988-12-20 Capetronic (Bsr) Ltd. TVRD receiver system with automatic bandwidth adjustment
US4761829A (en) * 1985-11-27 1988-08-02 Motorola Inc. Adaptive signal strength and/or ambient noise driven audio shaping system
DE3724604A1 (de) * 1987-04-15 1988-12-01 H U C Elektronik Gmbh Anordnung zum filtern eines fm-ukw-empfangssignals
US4816770A (en) * 1987-07-10 1989-03-28 Satellite Transmission Systems Adaptive FM threshold extension demodulator
US5136645A (en) * 1987-07-17 1992-08-04 Brockman Milton H Bandwidth controller for phase-locked-loop
JPS6489709A (en) * 1987-09-30 1989-04-04 Toshiba Corp Band width variable circuit
SE8802229D0 (sv) * 1988-06-14 1988-06-14 Ericsson Telefon Ab L M Forfarande vid mobilradiostation
JPH02186723A (ja) * 1988-08-25 1990-07-23 Nec Corp 受信機
SE463540B (sv) * 1988-09-19 1990-12-03 Ericsson Telefon Ab L M Saett foer att i ett radiokommunikationssystem digitalisera godtyckliga radiosignaler samt anordning foer utoevande av saettet
CH676179A5 (de) * 1988-09-29 1990-12-14 Ascom Zelcom Ag
US4885553A (en) * 1988-11-30 1989-12-05 Motorola, Inc. Continuously adaptive phase locked loop synthesizer
US5105164A (en) * 1989-02-28 1992-04-14 At&T Bell Laboratories High efficiency uhf linear power amplifier
SE463584B (sv) * 1989-04-20 1990-12-10 Ericsson Telefon Ab L M Saett och anordning foer noggrann digital maetning av tids- eller faslaeget i ett signalpulstaag
US5058204A (en) * 1989-08-02 1991-10-15 Motorola, Inc. Synthesized selective call receiver having variable characteristics
US5012490A (en) * 1989-12-26 1991-04-30 At&T Bell Laboratories Varying bandwidth digital signal detector
SE465597B (sv) * 1990-02-16 1991-09-30 Ericsson Telefon Ab L M Foerfarande att reducera inverkan av faedning hos en viterbimottagare med minst tvaa antenner
DE4005272A1 (de) * 1990-02-20 1991-08-22 Bosch Gmbh Robert Verfahren zur zf-bandbreitenumschaltung sowie zf-bandbreitenumschaltvorrichtung
US5084669A (en) * 1990-03-08 1992-01-28 Telefonaktiebolaget L M Ericsson Direct phase digitization
US5241702A (en) * 1990-09-06 1993-08-31 Telefonaktiebolaget L M Ericsson D.c. offset compensation in a radio receiver
US5287556A (en) * 1990-09-28 1994-02-15 Motorola, Inc. Interference reduction using an adaptive receiver filter, signal strength, and BER sensing
US5068625A (en) * 1990-12-14 1991-11-26 Motorola, Inc. Method for fast frequency acquisition in a phase locked loop
US5097221A (en) * 1990-12-21 1992-03-17 The United States Of America As Represented By The Secretary Of The Navy Adaptive filter technique for suppression of wideband or offset narrowband radio frequency interference
JP2982354B2 (ja) * 1991-03-20 1999-11-22 ソニー株式会社 送受信装置
CA2066851C (en) * 1991-06-13 1996-08-06 Edwin A. Kelley Multiple user digital receiver apparatus and method with combined multiple frequency channels
US5367539A (en) * 1991-12-31 1994-11-22 At&T Bell Laboratories Digital block processor for processing a plurality of transmission channels in a wireless radiotelephony system
US5233626A (en) * 1992-05-11 1993-08-03 Space Systems/Loral Inc. Repeater diversity spread spectrum communication system
US5323391A (en) * 1992-10-26 1994-06-21 Motorola, Inc. Multi-channel digital transmitter and receiver

Also Published As

Publication number Publication date
BR9612534A (pt) 1999-07-20
JP3846738B2 (ja) 2006-11-15
AU716365B2 (en) 2000-02-24
JP2000505628A (ja) 2000-05-09
CA2247911A1 (en) 1997-09-04
EP0883934B1 (de) 2002-08-28
CN1106720C (zh) 2003-04-23
EP0883934A1 (de) 1998-12-16
US5668837A (en) 1997-09-16
WO1997032403A1 (en) 1997-09-04
DE69623337D1 (de) 2002-10-02
CN1217100A (zh) 1999-05-19
AU5419196A (en) 1997-09-16

Similar Documents

Publication Publication Date Title
DE69623337T2 (de) Zwei-moden funkempfänger zum empfangen von breitband- und schmalbandsignalen
DE69733126D1 (de) Antennenkombination für den empfang von satelliten- und uhf-/vhf-signalen
DE69328406D1 (de) Frequenzdiversitysender und -Empfänger
DE69432004T2 (de) Radioempfänger
DE69323361D1 (de) Empfänger zum Empfang von HF-Signalen
DE69317371D1 (de) RDS-Rundfunkempfänger
BR9605916A (pt) Aparelho e aparelho de sintonizaçao
DE69411469D1 (de) Rundfunksignalempfänger
DE69429302D1 (de) Radioempfänger
DE69435152D1 (de) Quadraturempfänger für Spreizspektrumsignale
DE59407500D1 (de) Hochfrequenzempfänger
DE69428184D1 (de) Funkempfänger
DE69522050T2 (de) AM-Funkempfänger
DE69431699D1 (de) Radioempfänger
DE69605304D1 (de) Antennenanordnung und funkgerät
DE69530359D1 (de) Radioempfänger
DE59606150D1 (de) Stereorundfunkempfänger
GB2283143B (en) Radio receivers
DE29603971U1 (de) Abschirmung für Sende- und Empfangsgeräte
DE68925230D1 (de) Übertrager und Empfänger für Fernsehsignale
DE69632177D1 (de) Funkempfänger
DE69518063T2 (de) Funkrufempfänger
DE69633685D1 (de) Rundfunkempfänger
DE59812691D1 (de) Empfänger zum Empfang von DAB-Signalen
GB9500018D0 (en) Radio receivers

Legal Events

Date Code Title Description
8364 No opposition during term of opposition