DE69320868D1 - Empfänger mit einem kombinierten AM-FM-Demodulator - Google Patents

Empfänger mit einem kombinierten AM-FM-Demodulator

Info

Publication number
DE69320868D1
DE69320868D1 DE69320868T DE69320868T DE69320868D1 DE 69320868 D1 DE69320868 D1 DE 69320868D1 DE 69320868 T DE69320868 T DE 69320868T DE 69320868 T DE69320868 T DE 69320868T DE 69320868 D1 DE69320868 D1 DE 69320868D1
Authority
DE
Germany
Prior art keywords
demodulator
receiver
combined
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
Application number
DE69320868T
Other languages
English (en)
Other versions
DE69320868T2 (de
Inventor
Tatsuya Ishikawa
Noboru Taga
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.)
Toshiba Corp
Toshiba AVE Co Ltd
Original Assignee
Toshiba Corp
Toshiba AVE Co Ltd
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 Toshiba Corp, Toshiba AVE Co Ltd filed Critical Toshiba Corp
Publication of DE69320868D1 publication Critical patent/DE69320868D1/de
Application granted granted Critical
Publication of DE69320868T2 publication Critical patent/DE69320868T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/46—Receiver circuitry for the reception of television signals according to analogue transmission standards for receiving on more than one standard at will
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D3/00—Demodulation of angle-, frequency- or phase- modulated oscillations
    • H03D3/007—Demodulation of angle-, frequency- or phase- modulated oscillations by converting the oscillations into two quadrature related signals
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D3/00—Demodulation of angle-, frequency- or phase- modulated oscillations
    • H03D3/02—Demodulation of angle-, frequency- or phase- modulated oscillations by detecting phase difference between two signals obtained from input signal
    • H03D3/24—Modifications of demodulators to reject or remove amplitude variations by means of locked-in oscillator circuits
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D5/00—Circuits for demodulating amplitude-modulated or angle-modulated oscillations at will
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
    • H03D7/16—Multiple-frequency-changing
    • H03D7/165—Multiple-frequency-changing at least two frequency changers being located in different paths, e.g. in two paths with carriers in quadrature
    • H03D7/166—Multiple-frequency-changing at least two frequency changers being located in different paths, e.g. in two paths with carriers in quadrature using two or more quadrature frequency translation stages
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0008—Modulated-carrier systems arrangements for allowing a transmitter or receiver to use more than one type of modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/38—Demodulator circuits; Receiver circuits
    • H04L27/3818—Demodulator circuits; Receiver circuits using coherent demodulation, i.e. using one or more nominally phase synchronous carriers
    • H04L27/3827—Demodulator circuits; Receiver circuits using coherent demodulation, i.e. using one or more nominally phase synchronous carriers in which the carrier is recovered using only the demodulated baseband signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/426—Internal components of the client ; Characteristics thereof
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/426—Internal components of the client ; Characteristics thereof
    • H04N21/42607—Internal components of the client ; Characteristics thereof for processing the incoming bitstream
    • H04N21/4263—Internal components of the client ; Characteristics thereof for processing the incoming bitstream involving specific tuning arrangements, e.g. two tuners
    • H04N21/42638—Internal components of the client ; Characteristics thereof for processing the incoming bitstream involving specific tuning arrangements, e.g. two tuners involving a hybrid front-end, e.g. analog and digital tuners
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/455—Demodulation-circuits
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B28/00—Generation of oscillations by methods not covered by groups H03B5/00 - H03B27/00, including modification of the waveform to produce sinusoidal oscillations
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D1/00—Demodulation of amplitude-modulated oscillations
    • H03D1/22—Homodyne or synchrodyne circuits
    • H03D1/2245—Homodyne or synchrodyne circuits using two quadrature channels
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D3/00—Demodulation of angle-, frequency- or phase- modulated oscillations
    • H03D3/006—Demodulation of angle-, frequency- or phase- modulated oscillations by sampling the oscillations and further processing the samples, e.g. by computing techniques
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
    • H03D7/16—Multiple-frequency-changing
    • H03D7/161—Multiple-frequency-changing all the frequency changers being connected in cascade
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
    • H03D7/16—Multiple-frequency-changing
    • H03D7/165—Multiple-frequency-changing at least two frequency changers being located in different paths, e.g. in two paths with carriers in quadrature

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Color Television Systems (AREA)
  • Circuits Of Receivers In General (AREA)
  • Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
  • Superheterodyne Receivers (AREA)
DE69320868T 1992-06-12 1993-06-14 Empfänger mit einem kombinierten AM-FM-Demodulator Expired - Fee Related DE69320868T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15347592A JP3241098B2 (ja) 1992-06-12 1992-06-12 多方式対応の受信装置

Publications (2)

Publication Number Publication Date
DE69320868D1 true DE69320868D1 (de) 1998-10-15
DE69320868T2 DE69320868T2 (de) 1999-01-28

Family

ID=15563389

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69320868T Expired - Fee Related DE69320868T2 (de) 1992-06-12 1993-06-14 Empfänger mit einem kombinierten AM-FM-Demodulator

Country Status (6)

Country Link
US (1) US5418815A (de)
EP (1) EP0574273B1 (de)
JP (1) JP3241098B2 (de)
KR (2) KR940001723A (de)
CA (1) CA2098372C (de)
DE (1) DE69320868T2 (de)

Families Citing this family (127)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU660123B2 (en) * 1993-03-25 1995-06-08 Matsushita Electric Industrial Co., Ltd. Communication system
EP0617531A1 (de) * 1993-03-25 1994-09-28 Matsushita Electric Industrial Co., Ltd. Mehrfachauflösungsübertragungssystem
JP2616417B2 (ja) * 1993-12-24 1997-06-04 日本電気株式会社 移動無線端末機の瞬断防止方法と装置
KR100209461B1 (ko) * 1994-01-24 1999-07-15 나카무라 노부히데 방송방식 판별 텔레비전 수상기
JP3371506B2 (ja) * 1994-02-14 2003-01-27 株式会社日立製作所 受信装置
US5572264A (en) 1994-02-14 1996-11-05 Hitachi, Ltd. High definition TV signal receiver
US5557337A (en) * 1994-02-18 1996-09-17 Hitachi America, Ltd. Automatic television signal detector to differentiate NTSC signals from HDJV/AJV signals
JP3179957B2 (ja) * 1994-02-28 2001-06-25 富士通株式会社 マルチメディア通信における受信装置及び受信信号出力方法
US5764699A (en) * 1994-03-31 1998-06-09 Motorola, Inc. Method and apparatus for providing adaptive modulation in a radio communication system
CA2144596A1 (en) * 1994-04-05 1995-10-06 Richard Prodan Modulator/demodulator using baseband filtering
KR960013649B1 (ko) * 1994-04-12 1996-10-10 엘지전자 주식회사 에이치디티브이(hdtv)의 지상 및 케이블 방송신호 공동수신장치
US5636252A (en) * 1994-05-04 1997-06-03 Samsung Electronics Co., Ltd. Automatic gain control of radio receiver for receiving digital high-definition television signals
US5745084A (en) * 1994-06-17 1998-04-28 Lusignan; Bruce B. Very small aperture terminal & antenna for use therein
TW274170B (en) * 1994-06-17 1996-04-11 Terrastar Inc Satellite communication system, receiving antenna & components for use therein
US5649318A (en) * 1995-03-24 1997-07-15 Terrastar, Inc. Apparatus for converting an analog c-band broadcast receiver into a system for simultaneously receiving analog and digital c-band broadcast television signals
US5793799A (en) * 1994-08-03 1998-08-11 Deutsche Thomson-Brandt Gmbh Switchable circuit for processing and demodulating digital and analog signals
US5673293A (en) * 1994-09-08 1997-09-30 Hitachi America, Ltd. Method and apparatus for demodulating QAM and VSB signals
CA2156871C (en) * 1994-09-09 2005-04-05 Thomas Patrick Newberry Unified program guide interface
US5592508A (en) * 1994-09-22 1997-01-07 Cooper; J. Carl Analog signal coding and transmission apparatus and method capable of operation with multiple types of analog and digital signals
US5640670A (en) * 1994-12-08 1997-06-17 Broadcom Corporation Narrow-band quadrature demodulator for recovering analog video and digital audio in a direct broadcast system
US5774195A (en) * 1995-01-24 1998-06-30 Kabushiki Kaisha Toshiba Broadcasting system discriminating television receiver for differentiating between analog and digital telecast signals
US5825833A (en) * 1995-01-31 1998-10-20 Mitsumi Electric Co., Ltd. Digital and analog reception apparatus
US5648923A (en) * 1995-03-02 1997-07-15 Hitachi America, Ltd. Nyquist filter for use in a joint VSB/QAM demodulator
US5742595A (en) 1995-06-02 1998-04-21 Dsc Communications Corporation Processing CDMA signals
US5666170A (en) * 1995-07-12 1997-09-09 Thomson Consumer Electronics, Inc. Apparatus for decoding video signals encoded in different formats
GB2304245B (en) * 1995-08-04 1999-12-22 Plessey Semiconductors Ltd Digital I-Q converter circuit
US5757864A (en) * 1995-08-17 1998-05-26 Rockwell Semiconductor Systems, Inc. Receiver with filters offset correction
JPH0993152A (ja) * 1995-09-25 1997-04-04 Alps Electric Co Ltd ダブルコンバージョンテレビチューナ
KR100213048B1 (ko) * 1995-09-29 1999-08-02 윤종용 아날로그와 디지탈 비디오 모드를 갖는 수신기와 그 수신방법
US5841814A (en) * 1995-10-17 1998-11-24 Paradyne Corporation Sampling system for radio frequency receiver
US5689816A (en) * 1995-11-02 1997-11-18 Atmel Corporation Method and apparatus for differentiating a wireless analog signal from a wireless digitally encoded signal
JP3364098B2 (ja) * 1995-12-04 2003-01-08 シャープ株式会社 衛星放送チューナ
US5799037A (en) * 1996-02-16 1998-08-25 David Sarnoff Research Center Inc. Receiver capable of demodulating multiple digital modulation formats
US5809065A (en) * 1996-02-20 1998-09-15 Usa Digital Radio Partners, L.P. Method and apparatus for improving the quality of AM compatible digital broadcast system signals in the presence of distortion
GB9603609D0 (en) * 1996-02-21 1996-04-17 Cedardell Ltd Apparatus for processing radiated radio frequency signals
JP3288574B2 (ja) * 1996-02-26 2002-06-04 松下電器産業株式会社 データ受信装置
JP3118419B2 (ja) * 1996-06-07 2000-12-18 株式会社ケンウッド Ａｍデータ多重変調装置
US5949878A (en) * 1996-06-28 1999-09-07 Transcrypt International, Inc. Method and apparatus for providing voice privacy in electronic communication systems
KR100244745B1 (ko) * 1996-06-29 2000-02-15 김영환 싱크 워드 검출회로
JP3660068B2 (ja) * 1996-09-12 2005-06-15 株式会社ルネサステクノロジ 位相比較器
JPH1098449A (ja) * 1996-09-25 1998-04-14 Canon Inc 情報信号通信装置及び方法
US6005640A (en) * 1996-09-27 1999-12-21 Sarnoff Corporation Multiple modulation format television signal receiver system
KR100433236B1 (ko) * 1996-11-29 2004-09-18 엘지전자 주식회사 복합매체처리시스템
BR9706428A (pt) * 1996-12-19 1999-05-25 Matsushita Electric Ind Co Ltd Aparelho de recepção de transmissão
JP3327152B2 (ja) * 1996-12-25 2002-09-24 三菱電機株式会社 自動周波数制御回路
JPH10224420A (ja) * 1997-02-05 1998-08-21 Toshiba Corp デジタル復調装置のａｆｃ回路
US5995563A (en) * 1997-02-10 1999-11-30 Lsi Logic Corporation System and method for fast channel switching in a satellite receiver
DE19705612A1 (de) * 1997-02-14 1998-08-20 Alsthom Cge Alcatel Tuner zum Empfang von Frequenzmultiplexsignalen
JP3549361B2 (ja) * 1997-05-13 2004-08-04 三菱電機株式会社 ディジタル音声放送受信機
EP1523122A3 (de) * 1997-07-09 2007-04-25 Matsushita Electric Industrial Co., Ltd. Datenübertragung zwischen einer zentralen Einrichtung und einer Mehrzahl an entfernten Einrichtungen
US5982820A (en) 1997-07-10 1999-11-09 Samsung Electronics Co., Ltd. Bandpass phase tracker with hilbert transformation before plural-phase analog-to-digital conversion
KR100265236B1 (ko) * 1997-08-22 2000-09-15 윤종용 아날로그/디지털겸용튜너를구비한tv수상기
KR100480687B1 (ko) * 1997-08-28 2005-06-16 엘지전자 주식회사 아날로그및디지털신호겸용티브이(tv)수신장치
KR100222994B1 (ko) * 1997-10-23 1999-10-01 윤종용 디지털 방송 수신기의 아날로그 방송 수신방법 및 장치
US6078801A (en) * 1998-01-05 2000-06-20 Motorola, Inc. Method and apparatus for optimized post detection filtering for simulcast receivers
US6714608B1 (en) * 1998-01-27 2004-03-30 Broadcom Corporation Multi-mode variable rate digital satellite receiver
US6377316B1 (en) * 1998-02-23 2002-04-23 Zenith Electronics Corporation Tuner with switched analog and digital modulators
US6348955B1 (en) * 1998-02-23 2002-02-19 Zenith Electronics Corporation Tuner with switched analog and digital demodulators
US6147713A (en) * 1998-03-09 2000-11-14 General Instrument Corporation Digital signal processor for multistandard television reception
JPH11261922A (ja) * 1998-03-16 1999-09-24 Alps Electric Co Ltd ディジタルテレビジョンチュ−ナ
DK1072132T3 (da) * 1998-04-14 2002-02-18 Fraunhofer Ges Forschung Dual-mode modtager til modtagelse af satellit- og jordsignaler i et digitalt transmissionssystem
US6433835B1 (en) * 1998-04-17 2002-08-13 Encamera Sciences Corporation Expanded information capacity for existing communication transmission systems
JP3250661B2 (ja) * 1998-04-28 2002-01-28 松下電器産業株式会社 音声中間周波数自動判別回路及び方法
JP3361995B2 (ja) * 1998-07-03 2003-01-07 株式会社東芝 搬送波再生回路並びに搬送波再生方法
JP3825179B2 (ja) * 1998-07-17 2006-09-20 富士通株式会社 相関器
US7035351B1 (en) 1998-07-24 2006-04-25 Gct Semiconductor, Inc. Automatic gain control loop apparatus
WO2000005815A1 (en) * 1998-07-24 2000-02-03 Global Communication Technology, Inc. Single chip cmos transmitter/receiver and vco-mixer structure
US6194947B1 (en) * 1998-07-24 2001-02-27 Global Communication Technology Inc. VCO-mixer structure
US6313688B1 (en) 1998-07-24 2001-11-06 Gct Semiconductor, Inc. Mixer structure and method of using same
US6335952B1 (en) * 1998-07-24 2002-01-01 Gct Semiconductor, Inc. Single chip CMOS transmitter/receiver
US6483355B1 (en) 1998-07-24 2002-11-19 Gct Semiconductor, Inc. Single chip CMOS transmitter/receiver and method of using same
US6424192B1 (en) 1998-07-24 2002-07-23 Gct Semiconductor, Inc. Phase lock loop (PLL) apparatus and method
US6754478B1 (en) 1998-07-24 2004-06-22 Gct Semiconductor, Inc. CMOS low noise amplifier
JP2000059746A (ja) * 1998-08-07 2000-02-25 Hitachi Ltd Ｃａｔｖシステム及びその端末装置
JP2003505942A (ja) * 1999-07-15 2003-02-12 トムソン ライセンシング ソシエテ アノニム マルチプロトコル受信機の復調部
CN1361983A (zh) * 1999-07-16 2002-07-31 汤姆森许可公司 自动编程电视接收机的方法和装置
JP3576880B2 (ja) * 1999-09-09 2004-10-13 日本電気株式会社 自動変調方式識別装置及び自動変調方式識別方法
US7194752B1 (en) * 1999-10-19 2007-03-20 Iceberg Industries, Llc Method and apparatus for automatically recognizing input audio and/or video streams
US6675024B1 (en) * 1999-09-30 2004-01-06 Skyworks Solutions, Inc. System and method for receiving analog and digital signals
US6707861B1 (en) * 1999-10-26 2004-03-16 Thomson Licensing S.A. Demodulator for an HDTV receiver
US6298100B1 (en) * 1999-10-26 2001-10-02 Thomson Licensing S.A. Phase error estimation method for a demodulator in an HDTV receiver
JP3540242B2 (ja) 2000-03-30 2004-07-07 松下電器産業株式会社 多方式対応受信装置
JP2002044557A (ja) * 2000-07-19 2002-02-08 Sony Corp テレビジョン受信装置
JP3587245B2 (ja) * 2000-09-26 2004-11-10 船井電機株式会社 Ｔｖ放送受信装置およびｔｖ放送受信方法
US6658241B1 (en) * 2000-09-29 2003-12-02 Northrop Grumman Corporation Radio receiver automatic frequency control techniques
JP3589178B2 (ja) 2000-11-29 2004-11-17 船井電機株式会社 ディジタル／アナログテレビジョン信号受信機
DE10104441A1 (de) * 2001-02-01 2002-08-08 Grundig Ag Vorrichtung zum Empfang von digitalen Rundfunksignalen
US7349486B2 (en) * 2001-07-19 2008-03-25 Agere Systems Guardian Corporation System and method for recognizing zero-amplitude symbols in a QAM signal and digital receiver incorporating the same
JP2005504476A (ja) 2001-09-19 2005-02-10 シーメンス　アクチエンゲゼルシヤフト マルチバンド受信器および関連方法
KR100407970B1 (ko) * 2001-12-29 2003-12-01 엘지전자 주식회사 오디오 입력 신호 선택 장치 및 방법
AU2003252815A1 (en) * 2002-03-12 2003-09-22 Koninklijke Philips Electronics N.V. Receiver with a signal path
US7068950B2 (en) * 2002-03-18 2006-06-27 Lucent Technologies Inc. Correcting misalignment between data and a carrier signal in transmitters
US7233624B2 (en) * 2002-06-11 2007-06-19 Interdigital Technology Corporation Method and system for all digital gain control
JP3783704B2 (ja) * 2003-09-12 2006-06-07 株式会社日立製作所 受信装置
JP2005136790A (ja) * 2003-10-31 2005-05-26 Sanyo Electric Co Ltd アナログ／デジタル共用フロントエンドモジュール
KR20050048052A (ko) * 2003-11-18 2005-05-24 삼성전자주식회사 방송 신호 처리 장치 및 그 방법
KR20050070953A (ko) * 2003-12-31 2005-07-07 삼성전자주식회사 아날로그 입력 신호에 포함된 복제 방지 신호를손상시키지 않고 출력할 수 있는 아날로그/디지털 신호처리 장치 및 그 방법
US7272375B2 (en) 2004-06-30 2007-09-18 Silicon Laboratories Inc. Integrated low-IF terrestrial audio broadcast receiver and associated method
DE102004047424A1 (de) * 2004-09-28 2006-04-06 Micronas Gmbh Schaltung und Verfahren zur Trägerrückgewinnung
JP4271121B2 (ja) * 2004-10-14 2009-06-03 三菱電機株式会社 デジタル放送受信装置
JP4635609B2 (ja) * 2005-01-06 2011-02-23 ソニー株式会社 高周波信号受信装置
KR100675368B1 (ko) * 2005-03-14 2007-01-29 삼성전자주식회사 아날로그/디지털 통합 튜너의 잡음 제거가 가능한 영상표시기기 및 그 잡음 제거방법
KR100686636B1 (ko) * 2005-06-01 2007-02-26 한국전자통신연구원 차이추정 필터를 이용한 아날로그와 디지털 신호 구분 방법및 장치
JP2007037023A (ja) * 2005-07-29 2007-02-08 Fujitsu Ten Ltd アナログ放送／デジタル放送判別機能を備えたアナログｔｖ受信機
JP2007088717A (ja) * 2005-09-21 2007-04-05 Toshiba Corp 情報処理装置及び省電力制御方法
JP2007221203A (ja) * 2006-02-14 2007-08-30 Oki Electric Ind Co Ltd 復調システム
CN101416393A (zh) * 2006-03-31 2009-04-22 日本电波工业株式会社 频率合成器
FR2899417B1 (fr) * 2006-03-31 2009-07-31 Imra Europ Sas Soc Par Actions Methode et dispositif de demodulation
JP2008079241A (ja) * 2006-09-25 2008-04-03 Sharp Corp 検波回路、変調方式判定回路、集積回路、チューナ装置、および多方式共用受信装置
TWI348316B (en) * 2007-09-12 2011-09-01 Mstar Semiconductor Inc Smart channel scan method and associated apparatus
US8045656B2 (en) * 2007-12-14 2011-10-25 Silicon Laboratories Inc. Weather band radio having digital frequency control
US8107562B2 (en) * 2007-12-14 2012-01-31 Silicon Laboratories Inc. Combining soft decisions in a weather band radio
US8073418B2 (en) * 2008-08-04 2011-12-06 Mediatek Inc. Receiving systems and methods for audio processing
JP5402037B2 (ja) * 2009-02-05 2014-01-29 株式会社リコー Ｆｍ・ａｍ復調装置とラジオ受信機および電子機器ならびにイメージ補正調整方法
US8817672B2 (en) * 2009-04-13 2014-08-26 Viasat, Inc. Half-duplex phased array antenna system
US10516219B2 (en) 2009-04-13 2019-12-24 Viasat, Inc. Multi-beam active phased array architecture with independent polarization control
US8693970B2 (en) 2009-04-13 2014-04-08 Viasat, Inc. Multi-beam active phased array architecture with independant polarization control
US20110001886A1 (en) * 2009-07-01 2011-01-06 Tien-Ju Tsai Carrier tracking system and method
KR100962996B1 (ko) * 2010-02-24 2010-06-09 구 스티브 분산중계기간 주파수 및 데이터 일치 제어시스템
US8699626B2 (en) 2011-11-29 2014-04-15 Viasat, Inc. General purpose hybrid
US8737531B2 (en) 2011-11-29 2014-05-27 Viasat, Inc. Vector generator using octant symmetry
BR112013026452B1 (pt) * 2012-01-20 2021-02-17 Fraunhofer-Gellschaft Zur Förderung Der Angewandten Forschung E.V. aparelho e método para codificação e decodificação de áudio empregando substituição sinusoidal
US8693591B1 (en) * 2012-09-20 2014-04-08 Phuong Huynh Apparatus and method for tuning the frequency of a bandpass filter to an offset frequency around a carrier frequency
JP6257587B2 (ja) * 2013-03-28 2018-01-10 京セラ株式会社 無線通信装置及び信号処理方法
CN110531325A (zh) * 2019-07-30 2019-12-03 中国人民解放军91550部队 用于单脉冲雷达的数字中频接收机及方法
TWI756730B (zh) * 2020-07-03 2022-03-01 立積電子股份有限公司 調頻解調變裝置及調頻解調變裝置的控制方法
TWI791257B (zh) * 2021-08-02 2023-02-01 群聯電子股份有限公司 訊號重驅動裝置、資料儲存系統及模式控制方法

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4750214A (en) * 1986-06-11 1988-06-07 Rockwell International Corporation Digital FM demodulator using delayed signal product with arctangent
US4852086A (en) * 1986-10-31 1989-07-25 Motorola, Inc. SSB communication system with FM data capability
US4882725A (en) * 1987-01-30 1989-11-21 Hitachi, Ltd. Multiplex transmission method and apparatus
JPH0335673A (ja) * 1989-06-30 1991-02-15 Mitsubishi Electric Corp 自動信号判別装置
JPH0398537A (ja) * 1989-09-08 1991-04-24 Itokazu Hideko 炭酸麦茶と炭酸ウーロン茶
KR920004944Y1 (ko) * 1989-11-15 1992-07-23 삼성전자주식회사 A2/NiCam공용의 음성 다중 복조회로
US5072297A (en) * 1990-03-27 1991-12-10 Nippon Hoso Kyokai Method and system for transmitting and receiving PCM audio signals in combination with a video signal
US5063445A (en) * 1990-04-19 1991-11-05 Nippon Hoso Kyokai Multiple sub-sampling transmitting/receiving system performing interfield and interframe offset sub-sampling of a broad bandwidth television signal
KR970001625B1 (ko) * 1990-06-30 1997-02-11 삼성전자 주식회사 Nicam 언어 다중 방송 탐색 장치 및 그 방법
US5163159A (en) * 1990-07-30 1992-11-10 Motorola, Inc. Dual mode automatic frequency control
JP2749456B2 (ja) * 1991-03-06 1998-05-13 三菱電機株式会社 無線通信機

Also Published As

Publication number Publication date
EP0574273A1 (de) 1993-12-15
EP0574273B1 (de) 1998-09-09
US5418815A (en) 1995-05-23
CA2098372A1 (en) 1993-12-13
KR940001723A (ko) 1994-01-11
DE69320868T2 (de) 1999-01-28
KR960015838B1 (ko) 1996-11-21
JPH05347736A (ja) 1993-12-27
JP3241098B2 (ja) 2001-12-25
CA2098372C (en) 2002-12-31

Similar Documents

Publication Publication Date Title
DE69320868D1 (de) Empfänger mit einem kombinierten AM-FM-Demodulator
DE69433469D1 (de) Träger-Demodulator
GB2218871B (en) Fm/am receiver
DE69309050D1 (de) Navigationsempfänger mit gekoppelten signalverfolgenden kanälen
DE69430785D1 (de) Demodulator
DE69434800D1 (de) Mit sonnenbatterien ausgestattetes dach
DE69424407D1 (de) Empfänger mit regelbarem bandpassfilter
GR3020428T3 (en) A central solar receiver
DE69524351D1 (de) FM-Emfänger mit mehreren Antennen
DE69313520D1 (de) FM-Quadratur-Demodulator
GB2259926B (en) Roofing component
IL107656A0 (en) Demodulator
DE69326315D1 (de) FM-Tuner
DE69226318D1 (de) FSK-Demodulator mit direkter Umwandlung
DE69001747D1 (de) Fahrzeug mit einem faltdach.
DE69330808D1 (de) FSK-Empfänger
DE69216928D1 (de) Empfänger mit Direktumsetzung
GB2264614B (en) FSK demodulator
ATA38794A (de) Autoradio mit einem decoder
DE69106405D1 (de) Fernsehempfänger mit einem FM Demodulator mit reduziertem Schwellwert.
EP0442818A3 (en) Fm demodulator
DE69416802D1 (de) FM Signal-Demodulator
GB9127075D0 (en) Demodulator
GB2250450B (en) Spillage recovery
GB9102500D0 (en) Roofing

Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee