CA2098372A1 - Receiver adaptively operable for multiple signal transmission systems - Google Patents

Receiver adaptively operable for multiple signal transmission systems

Info

Publication number
CA2098372A1
CA2098372A1 CA002098372A CA2098372A CA2098372A1 CA 2098372 A1 CA2098372 A1 CA 2098372A1 CA 002098372 A CA002098372 A CA 002098372A CA 2098372 A CA2098372 A CA 2098372A CA 2098372 A1 CA2098372 A1 CA 2098372A1
Authority
CA
Canada
Prior art keywords
modulated signals
demodulator
signals
high frequency
receiver
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.)
Granted
Application number
CA002098372A
Other languages
French (fr)
Other versions
CA2098372C (en
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 CA2098372A1 publication Critical patent/CA2098372A1/en
Application granted granted Critical
Publication of CA2098372C publication Critical patent/CA2098372C/en
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

Abstract

A receiver for selectively receiving high frequency signals from analog modulated signals and digital modulated signals. The receiver has an intermediate frequency signal circuit for selecting a desired channel of the high frequency signals and for frequency-converting the high frequency signal of the selected channel into an intermediate frequency signal, a demodulator for demodulating the intermediate frequency signal, which is adapted to be capable of demodulating modulated signals in a variety of modulation systems, the demodulator including at least a digital section, and a controller for controlling the demodulator to be able to discriminate between the analog modulated signals and the digital modulated signals, based on a demodulated signal output from the digital section of the demodulator and to be switched into a demodulation mode suited for modulation system of the selected channel of the high frequency signals.
CA002098372A 1992-06-12 1993-06-14 Receiver adaptively operable for multiple signal transmission systems Expired - Fee Related CA2098372C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP04-153475 1992-06-12
JP15347592A JP3241098B2 (en) 1992-06-12 1992-06-12 Multi-system receiver

Publications (2)

Publication Number Publication Date
CA2098372A1 true CA2098372A1 (en) 1993-12-13
CA2098372C CA2098372C (en) 2002-12-31

Family

ID=15563389

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002098372A Expired - Fee Related CA2098372C (en) 1992-06-12 1993-06-14 Receiver adaptively operable for multiple signal transmission systems

Country Status (6)

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

Families Citing this family (127)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0617531A1 (en) * 1993-03-25 1994-09-28 Matsushita Electric Industrial Co., Ltd. Multiresolution transmission system
AU660123B2 (en) * 1993-03-25 1995-06-08 Matsushita Electric Industrial Co., Ltd. Communication system
JP2616417B2 (en) * 1993-12-24 1997-06-04 日本電気株式会社 Method and apparatus for preventing instantaneous interruption of mobile radio terminal
KR100209461B1 (en) * 1994-01-24 1999-07-15 나카무라 노부히데 Broadcasting system discrimination tv receiver
JP3371506B2 (en) * 1994-02-14 2003-01-27 株式会社日立製作所 Receiver
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 (en) * 1994-02-28 2001-06-25 富士通株式会社 Receiving apparatus and receiving signal output method in multimedia communication
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 (en) * 1994-04-12 1996-10-10 엘지전자 주식회사 Terrestrial and cable hd broadcasting signal common receiving apparatus
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
TW274170B (en) * 1994-06-17 1996-04-11 Terrastar Inc Satellite communication system, receiving antenna & components for use therein
US5745084A (en) * 1994-06-17 1998-04-28 Lusignan; Bruce B. Very small aperture terminal & antenna 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 (en) * 1995-09-25 1997-04-04 Alps Electric Co Ltd Double conversion television tuner
KR100213048B1 (en) * 1995-09-29 1999-08-02 윤종용 Receiver having analog and digital video mode and receiving method thereof
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 (en) * 1995-12-04 2003-01-08 シャープ株式会社 Satellite tuner
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 (en) * 1996-02-26 2002-06-04 松下電器産業株式会社 Data receiving device
JP3118419B2 (en) * 1996-06-07 2000-12-18 株式会社ケンウッド AM data multiplex modulator
US5949878A (en) * 1996-06-28 1999-09-07 Transcrypt International, Inc. Method and apparatus for providing voice privacy in electronic communication systems
KR100244745B1 (en) * 1996-06-29 2000-02-15 김영환 Sync. word detecting circuit
JP3660068B2 (en) * 1996-09-12 2005-06-15 株式会社ルネサステクノロジ Phase comparator
JPH1098449A (en) * 1996-09-25 1998-04-14 Canon Inc Information signal communication equipment and method therefor
US6005640A (en) * 1996-09-27 1999-12-21 Sarnoff Corporation Multiple modulation format television signal receiver system
KR100433236B1 (en) * 1996-11-29 2004-09-18 엘지전자 주식회사 Complicated medium processing system, especially in relation to watching analog and digital catv broadcast programs, and performing data communication such as the internet through tv
BR9706428A (en) * 1996-12-19 1999-05-25 Matsushita Electric Ind Co Ltd Transmission receiving apparatus
JP3327152B2 (en) * 1996-12-25 2002-09-24 三菱電機株式会社 Automatic frequency control circuit
JPH10224420A (en) * 1997-02-05 1998-08-21 Toshiba Corp Afc circuit for digital demodulator
US5995563A (en) * 1997-02-10 1999-11-30 Lsi Logic Corporation System and method for fast channel switching in a satellite receiver
DE19705612A1 (en) * 1997-02-14 1998-08-20 Alsthom Cge Alcatel Tuner for multi frequency signal reception
JP3549361B2 (en) * 1997-05-13 2004-08-04 三菱電機株式会社 Digital audio broadcasting receiver
EP1523125A3 (en) 1997-07-09 2007-04-25 Matsushita Electric Industrial Co., Ltd. Transmission of data between a central device and a plurality of remote devices
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 (en) * 1997-08-22 2000-09-15 윤종용 A tv-set having a tuner combinig use for analog/digital
KR100480687B1 (en) * 1997-08-28 2005-06-16 엘지전자 주식회사 Tv receiver for receiving combined analog and digital signals
KR100222994B1 (en) * 1997-10-23 1999-10-01 윤종용 Apparatus and method of receiving analog television of digital television receiver
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
US6348955B1 (en) * 1998-02-23 2002-02-19 Zenith Electronics Corporation Tuner with switched analog and digital demodulators
US6377316B1 (en) * 1998-02-23 2002-04-23 Zenith Electronics Corporation Tuner with switched analog and digital modulators
US6147713A (en) * 1998-03-09 2000-11-14 General Instrument Corporation Digital signal processor for multistandard television reception
JPH11261922A (en) * 1998-03-16 1999-09-24 Alps Electric Co Ltd Digital television tuner
CN1294806A (en) * 1998-04-14 2001-05-09 弗兰霍菲尔运输应用研究公司 Dual-mode receiver for receiving satellite and terrestrial signals in digital broadcast system
US6433835B1 (en) * 1998-04-17 2002-08-13 Encamera Sciences Corporation Expanded information capacity for existing communication transmission systems
JP3250661B2 (en) * 1998-04-28 2002-01-28 松下電器産業株式会社 Circuit and method for automatically determining audio intermediate frequency
JP3361995B2 (en) * 1998-07-03 2003-01-07 株式会社東芝 Carrier recovery circuit and carrier recovery method
JP3825179B2 (en) * 1998-07-17 2006-09-20 富士通株式会社 Correlator
US6424192B1 (en) 1998-07-24 2002-07-23 Gct Semiconductor, Inc. Phase lock loop (PLL) apparatus and method
US6335952B1 (en) 1998-07-24 2002-01-01 Gct Semiconductor, Inc. Single chip CMOS transmitter/receiver
US6313688B1 (en) 1998-07-24 2001-11-06 Gct Semiconductor, Inc. Mixer structure and method of using same
US6483355B1 (en) 1998-07-24 2002-11-19 Gct Semiconductor, Inc. Single chip CMOS transmitter/receiver and method of using same
US6194947B1 (en) * 1998-07-24 2001-02-27 Global Communication Technology Inc. VCO-mixer structure
US7035351B1 (en) 1998-07-24 2006-04-25 Gct Semiconductor, Inc. Automatic gain control loop apparatus
JP4545932B2 (en) * 1998-07-24 2010-09-15 ジー・シー・ティー・セミコンダクター・インク Single chip CMOS transmitter / receiver and VCO-mixer structure
US6754478B1 (en) 1998-07-24 2004-06-22 Gct Semiconductor, Inc. CMOS low noise amplifier
JP2000059746A (en) * 1998-08-07 2000-02-25 Hitachi Ltd Catv system and its terminal device
AU766152B2 (en) * 1999-07-15 2003-10-09 Thomson Licensing S.A. Demodulation section in a multiple protocol receiver
EP1197078A1 (en) * 1999-07-16 2002-04-17 Thomson Licensing S.A. Method and apparatus for autoprogramming a television receiver
JP3576880B2 (en) * 1999-09-09 2004-10-13 日本電気株式会社 Automatic modulation system identification device and automatic modulation system identification method
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
US6298100B1 (en) * 1999-10-26 2001-10-02 Thomson Licensing S.A. Phase error estimation method for a demodulator in an HDTV receiver
US6707861B1 (en) * 1999-10-26 2004-03-16 Thomson Licensing S.A. Demodulator for an HDTV receiver
JP3540242B2 (en) 2000-03-30 2004-07-07 松下電器産業株式会社 Multi-system receiver
JP2002044557A (en) * 2000-07-19 2002-02-08 Sony Corp Television receiver
JP3587245B2 (en) * 2000-09-26 2004-11-10 船井電機株式会社 TV broadcast receiving apparatus and TV broadcast receiving method
US6658241B1 (en) * 2000-09-29 2003-12-02 Northrop Grumman Corporation Radio receiver automatic frequency control techniques
JP3589178B2 (en) 2000-11-29 2004-11-17 船井電機株式会社 Digital / analog television signal receiver
DE20112183U1 (en) * 2001-02-01 2001-09-27 Grundig Ag Device for receiving digital radio signals
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
ES2306730T3 (en) * 2001-09-19 2008-11-16 SIEMENS HOME AND OFFICE COMMUNICATIONS DEVICES GMBH & CO. KG MULTIBAND RECEIVER AND ASSOCIATED PROCEDURE.
KR100407970B1 (en) * 2001-12-29 2003-12-01 엘지전자 주식회사 apparatus and method for selecting of audio input signal
WO2003077435A1 (en) * 2002-03-12 2003-09-18 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 (en) * 2003-09-12 2006-06-07 株式会社日立製作所 Receiver
JP2005136790A (en) * 2003-10-31 2005-05-26 Sanyo Electric Co Ltd Analog/digital common front end module
KR20050048052A (en) * 2003-11-18 2005-05-24 삼성전자주식회사 Method and apparatus for management of broadcasting signal
KR20050070953A (en) * 2003-12-31 2005-07-07 삼성전자주식회사 Analogue/digital signal processing apparatus for outputting the analogue input signal without eliminating the copy protection signal included therein and method thereof
US7272375B2 (en) * 2004-06-30 2007-09-18 Silicon Laboratories Inc. Integrated low-IF terrestrial audio broadcast receiver and associated method
DE102004047424A1 (en) * 2004-09-28 2006-04-06 Micronas Gmbh Circuit and method for carrier recovery
JP4271121B2 (en) * 2004-10-14 2009-06-03 三菱電機株式会社 Digital broadcast receiver
JP4635609B2 (en) * 2005-01-06 2011-02-23 ソニー株式会社 High frequency signal receiver
KR100675368B1 (en) * 2005-03-14 2007-01-29 삼성전자주식회사 Image display apparatus for removing noise of tuner uniting analog and digital and noise removing method thereof
KR100686636B1 (en) * 2005-06-01 2007-02-26 한국전자통신연구원 METHOD AND APPARATUS FOR IDENTIFYING ANALOG SIGNAL OR DIGITAL SIGNAL USING DoE FILTER
JP2007037023A (en) * 2005-07-29 2007-02-08 Fujitsu Ten Ltd Analog tv receiver having analog broadcast/digital broadcast discriminating function
JP2007088717A (en) * 2005-09-21 2007-04-05 Toshiba Corp Information processing device and power saving control method
JP2007221203A (en) * 2006-02-14 2007-08-30 Oki Electric Ind Co Ltd Demodulation system
FR2899417B1 (en) * 2006-03-31 2009-07-31 Imra Europ Sas Soc Par Actions DEMODULATION METHOD AND DEVICE
CN101416393A (en) 2006-03-31 2009-04-22 日本电波工业株式会社 Frequency synthesizer
JP2008079241A (en) * 2006-09-25 2008-04-03 Sharp Corp Detection circuit, modulation mode discrimination circuit, integrated circuit, tuner device, and multi-system compatible receiver
TWI348316B (en) * 2007-09-12 2011-09-01 Mstar Semiconductor Inc Smart channel scan method and associated apparatus
US8107562B2 (en) * 2007-12-14 2012-01-31 Silicon Laboratories Inc. Combining soft decisions in a weather band radio
US8045656B2 (en) * 2007-12-14 2011-10-25 Silicon Laboratories Inc. Weather band radio having digital frequency control
US8073418B2 (en) * 2008-08-04 2011-12-06 Mediatek Inc. Receiving systems and methods for audio processing
JP5402037B2 (en) * 2009-02-05 2014-01-29 株式会社リコー FM / AM demodulator, radio receiver, electronic device, and image correction adjustment method
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 (en) * 2010-02-24 2010-06-09 구 스티브 Method and apparatus of an 8vsb sfn distributed translator system
US8737531B2 (en) 2011-11-29 2014-05-27 Viasat, Inc. Vector generator using octant symmetry
US8699626B2 (en) 2011-11-29 2014-04-15 Viasat, Inc. General purpose hybrid
MX350686B (en) * 2012-01-20 2017-09-13 Fraunhofer Ges Forschung Apparatus and method for audio encoding and decoding employing sinusoidal substitution.
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
EP2981038A4 (en) * 2013-03-28 2016-11-02 Kyocera Corp Radio communication device and signal processing method
CN110531325A (en) * 2019-07-30 2019-12-03 中国人民解放军91550部队 Digital if receiver and method for monopulse radar
TWI756730B (en) * 2020-07-03 2022-03-01 立積電子股份有限公司 Frequency modulation demodulation device and control method of frequency modulation demodulation device
TWI791257B (en) * 2021-08-02 2023-02-01 群聯電子股份有限公司 Signal re-driving device, data storage system and mode control method

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 (en) * 1989-06-30 1991-02-15 Mitsubishi Electric Corp Automatic signal discriminator
JPH0398537A (en) * 1989-09-08 1991-04-24 Itokazu Hideko Carbonated ptisan and carbonated oolong tea
KR920004944Y1 (en) * 1989-11-15 1992-07-23 삼성전자주식회사 Sound multiplex demodulation circuit of 12/nicam common using
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 (en) * 1990-06-30 1997-02-11 삼성전자 주식회사 Apparatus for detecting n.i.c.a.m. language
US5163159A (en) * 1990-07-30 1992-11-10 Motorola, Inc. Dual mode automatic frequency control
JP2749456B2 (en) * 1991-03-06 1998-05-13 三菱電機株式会社 Wireless communication equipment

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KR940001723A (en) 1994-01-11
KR960015838B1 (en) 1996-11-21
JP3241098B2 (en) 2001-12-25
EP0574273A1 (en) 1993-12-15
EP0574273B1 (en) 1998-09-09
US5418815A (en) 1995-05-23
DE69320868D1 (en) 1998-10-15
CA2098372C (en) 2002-12-31
DE69320868T2 (en) 1999-01-28
JPH05347736A (en) 1993-12-27

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