KR100997468B1 - 안테나 특성에 적응하는 전자 조정가능한 응답을 갖는 튜너입력 필터 - Google Patents

안테나 특성에 적응하는 전자 조정가능한 응답을 갖는 튜너입력 필터 Download PDF

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KR100997468B1
KR100997468B1 KR1020047017059A KR20047017059A KR100997468B1 KR 100997468 B1 KR100997468 B1 KR 100997468B1 KR 1020047017059 A KR1020047017059 A KR 1020047017059A KR 20047017059 A KR20047017059 A KR 20047017059A KR 100997468 B1 KR100997468 B1 KR 100997468B1
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South Korea
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signal
input filter
channel
television
voltage
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KR1020047017059A
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Korean (ko)
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KR20040104605A (ko
Inventor
마이클 안토니 푸겔
쿠마르 라마스와미
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톰슨 라이센싱
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Assigned to 톰슨 라이센싱 디티브이 reassignment 톰슨 라이센싱 디티브이 권리의 전부이전등록 Assignors: 톰슨 라이센싱
Assigned to 인터디지탈 매디슨 페이튼트 홀딩스 reassignment 인터디지탈 매디슨 페이튼트 홀딩스 권리의 전부이전등록 Assignors: 톰슨 라이센싱 디티브이
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    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J1/00—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general
    • 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
    • H04N5/50—Tuning indicators; Automatic tuning control
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J1/00—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general
    • H03J1/0008—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general using a central processing unit, e.g. a microprocessor
    • H03J1/0058—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general using a central processing unit, e.g. a microprocessor provided with channel identification means
    • H03J1/0066—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general using a central processing unit, e.g. a microprocessor provided with channel identification means with means for analysing the received signal strength
    • 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
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/438—Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving encoded video stream packets from an IP network
    • H04N21/4383—Accessing a communication channel
    • 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
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/442—Monitoring of processes or resources, e.g. detecting the failure of a recording device, monitoring the downstream bandwidth, the number of times a movie has been viewed, the storage space available from the internal hard disk
    • H04N21/44209—Monitoring of downstream path of the transmission network originating from a server, e.g. bandwidth variations of a wireless network
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J2200/00—Indexing scheme relating to tuning resonant circuits and selecting resonant circuits
    • H03J2200/28—Automatic self-alignment of a receiver
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J3/00—Continuous tuning
    • H03J3/02—Details
    • H03J3/16—Tuning without displacement of reactive element, e.g. by varying permeability
    • H03J3/18—Tuning without displacement of reactive element, e.g. by varying permeability by discharge tube or semiconductor device simulating variable reactance
    • H03J3/185—Tuning without displacement of reactive element, e.g. by varying permeability by discharge tube or semiconductor device simulating variable reactance with varactors, i.e. voltage variable reactive diodes
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J3/00—Continuous tuning
    • H03J3/20—Continuous tuning of single resonant circuit by varying inductance only or capacitance only
    • 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
    • H04N5/52—Automatic gain control

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Databases & Information Systems (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
KR1020047017059A 2002-04-26 2003-04-25 안테나 특성에 적응하는 전자 조정가능한 응답을 갖는 튜너입력 필터 Expired - Lifetime KR100997468B1 (ko)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US37612802P 2002-04-26 2002-04-26
US37612702P 2002-04-26 2002-04-26
US60/376,127 2002-04-26
US60/376,128 2002-04-26
PCT/US2003/012925 WO2003092160A1 (en) 2002-04-26 2003-04-25 Tuner input filter with electronically adjustable response for adapting to antenna characteristic

Publications (2)

Publication Number Publication Date
KR20040104605A KR20040104605A (ko) 2004-12-10
KR100997468B1 true KR100997468B1 (ko) 2010-12-01

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020047017059A Expired - Lifetime KR100997468B1 (ko) 2002-04-26 2003-04-25 안테나 특성에 적응하는 전자 조정가능한 응답을 갖는 튜너입력 필터

Country Status (9)

Country Link
US (2) US7668519B2 (https=)
EP (1) EP1500193B1 (https=)
JP (2) JP2005524274A (https=)
KR (1) KR100997468B1 (https=)
CN (1) CN100364229C (https=)
AU (1) AU2003223743A1 (https=)
DE (1) DE60323825D1 (https=)
MX (1) MXPA04010620A (https=)
WO (1) WO2003092160A1 (https=)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100997468B1 (ko) * 2002-04-26 2010-12-01 톰슨 라이센싱 안테나 특성에 적응하는 전자 조정가능한 응답을 갖는 튜너입력 필터
US20050162570A1 (en) * 2002-04-26 2005-07-28 Hall Edward A. Tuner input filter with electronically adjustable center frequency for adapting to antenna characteristic
US6990324B2 (en) * 2004-04-15 2006-01-24 Flarion Technologies, Inc. Methods and apparatus for selecting between multiple carriers using a single receiver chain tuned to a single carrier
US7801257B2 (en) * 2005-09-28 2010-09-21 Genesis Microchip Inc Adaptive reception techniques for over-sampled receivers
US8063839B2 (en) * 2006-10-17 2011-11-22 Quantenna Communications, Inc. Tunable antenna system
US20080152049A1 (en) * 2006-12-08 2008-06-26 Texas Instruments Deutschland Gmbh Digital audio broadcast receiver
US20080158076A1 (en) * 2006-12-28 2008-07-03 Broadcom Corporation Dynamically adjustable narrow bandwidth antenna for wide band systems
US8457574B2 (en) * 2007-02-16 2013-06-04 Broadcom Corporation Front-end integrated circuit for television receivers
US8169551B2 (en) * 2007-12-07 2012-05-01 Himax Technologies Limited Method and apparatus for adjusting center frequency of filter
US8370890B2 (en) * 2008-07-18 2013-02-05 At&T Intellectual Property I, L.P. Methods and apparatus for frequency agile band-pass filtering of broadcast signals
CN102098065A (zh) * 2009-12-11 2011-06-15 无锡华润矽科微电子有限公司 一种带通滤波接收装置及其控制方法
DE102011087682B3 (de) * 2011-12-02 2013-05-29 Technisat Digital Gmbh TV-Empfangsteil mit Eingangsfiltermitteln zum Unterdrücken von Störleistung in einem Eingangskreis
US9019039B1 (en) 2012-03-07 2015-04-28 Space Systems/Loral, Llc Frequency and bandwidth tunable microwave filter
US9554359B2 (en) * 2014-02-07 2017-01-24 Apple Inc. Dynamic antenna tuner setting for carrier aggregation scenarios
JP6451123B2 (ja) 2014-07-22 2019-01-16 船井電機株式会社 高周波回路

Citations (3)

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Publication number Priority date Publication date Assignee Title
US4907292A (en) 1986-10-01 1990-03-06 Telefunken Electronic Gmbh Television tuner
US5715531A (en) 1995-11-20 1998-02-03 Nextlevel Systems (Taiwan), Ltd. Synchronous tracking filter circuit for a broadcast satellite tuner
US6111603A (en) 1998-10-02 2000-08-29 Sony Corporation Portable field tester for measuring signal reception of a digitally broadcast signal

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US4584544A (en) * 1985-02-28 1986-04-22 Rca Corporation Bandswitched interstage coupling network including a high side coupled capacitor
JPS6046895B2 (ja) * 1978-08-04 1985-10-18 アルプス電気株式会社 電子同調チユ−ナ
DE3033994A1 (de) * 1980-09-10 1982-04-15 Koenig & Bauer Ag Verfahren und einrichtung zum einstellen von farbzonenbreiten farbdosierelementen von druckmaschinen
US4349840A (en) * 1980-11-25 1982-09-14 Rca Corporation Apparatus for automatically steering an electrically steerable television antenna
US4404686A (en) * 1980-12-01 1983-09-13 Zenith Radio Corporation Four band VHF varactor tuner to cover extended CATV band utilizing two switching diodes per resonant circuit
DE3509517A1 (de) * 1985-03-16 1986-09-25 Philips Patentverwaltung Gmbh, 2000 Hamburg Schaltungsanordnung fuer einen tuner zur umschaltung zweier frequenzbaender
DE3512873A1 (de) * 1985-04-11 1986-10-30 Deutsche Thomson-Brandt Gmbh, 7730 Villingen-Schwenningen Abstimmsystem fuer fernsehgeraete
US4972509A (en) * 1988-06-20 1990-11-20 Sony Coporation Band switching circuit of a tuner
JP2911136B2 (ja) * 1989-07-05 1999-06-23 松下電器産業株式会社 入力同調フィルタ
US5101509A (en) * 1990-09-14 1992-03-31 Ford Motor Company Rf filter alignment using digital processor clock
JPH04297136A (ja) * 1991-01-09 1992-10-21 Clarion Co Ltd アンテナ増幅器
GB2276786B (en) * 1993-03-22 1996-07-10 Motorola Gmbh A voltage controlled filter and a radio communications device comprising the same
JPH07131276A (ja) * 1993-10-29 1995-05-19 Toshiba Corp 可変フィルタ
JPH0974318A (ja) * 1995-03-31 1997-03-18 Ikeda Takeshi 受信機
KR0153730B1 (ko) * 1995-10-26 1998-12-15 김광호 전압동조튜닝방식의 채널선국방법
JPH11205700A (ja) * 1998-01-12 1999-07-30 Alps Electric Co Ltd 複同調回路
JP2000151448A (ja) * 1998-11-10 2000-05-30 Harness Syst Tech Res Ltd 車載アンテナ装置
FR2787262A1 (fr) 1998-12-14 2000-06-16 Cit Alcatel Systeme de transmission a fibre optique a filtre de reception de largeur variable
SE514174C2 (sv) * 1999-03-09 2001-01-15 Ericsson Telefon Ab L M Resonator med variabel resonansfrekvens
US6291924B1 (en) 1999-07-01 2001-09-18 Trw Inc. Adjustable saw device
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JP2002009573A (ja) * 2000-06-26 2002-01-11 Mitsubishi Electric Corp チューナブルフィルタ
KR100997468B1 (ko) * 2002-04-26 2010-12-01 톰슨 라이센싱 안테나 특성에 적응하는 전자 조정가능한 응답을 갖는 튜너입력 필터
JP4297136B2 (ja) * 2006-06-07 2009-07-15 ソニー株式会社 記憶装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4907292A (en) 1986-10-01 1990-03-06 Telefunken Electronic Gmbh Television tuner
US5715531A (en) 1995-11-20 1998-02-03 Nextlevel Systems (Taiwan), Ltd. Synchronous tracking filter circuit for a broadcast satellite tuner
US6111603A (en) 1998-10-02 2000-08-29 Sony Corporation Portable field tester for measuring signal reception of a digitally broadcast signal

Also Published As

Publication number Publication date
AU2003223743A1 (en) 2003-11-10
JP2005524274A (ja) 2005-08-11
US20050237389A1 (en) 2005-10-27
JP2010098747A (ja) 2010-04-30
DE60323825D1 (de) 2008-11-13
US20090310031A1 (en) 2009-12-17
US7668519B2 (en) 2010-02-23
CN1663123A (zh) 2005-08-31
MXPA04010620A (es) 2004-12-13
EP1500193A1 (en) 2005-01-26
WO2003092160A1 (en) 2003-11-06
JP4987951B2 (ja) 2012-08-01
EP1500193B1 (en) 2008-10-01
KR20040104605A (ko) 2004-12-10
CN100364229C (zh) 2008-01-23
US7983638B2 (en) 2011-07-19

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