CN100364229C - 用于适配天线特性的、具有电可调整响应的调谐器输入滤波器 - Google Patents

用于适配天线特性的、具有电可调整响应的调谐器输入滤波器 Download PDF

Info

Publication number
CN100364229C
CN100364229C CNB038148587A CN03814858A CN100364229C CN 100364229 C CN100364229 C CN 100364229C CN B038148587 A CNB038148587 A CN B038148587A CN 03814858 A CN03814858 A CN 03814858A CN 100364229 C CN100364229 C CN 100364229C
Authority
CN
China
Prior art keywords
signal
channel
input filter
television
tuned
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
CNB038148587A
Other languages
English (en)
Chinese (zh)
Other versions
CN1663123A (zh
Inventor
迈克尔·A·普格尔
库马·拉马斯瓦米
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.)
Thomson Licensing SAS
Original Assignee
Thomson Licensing SAS
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 Thomson Licensing SAS filed Critical Thomson Licensing SAS
Publication of CN1663123A publication Critical patent/CN1663123A/zh
Application granted granted Critical
Publication of CN100364229C publication Critical patent/CN100364229C/zh
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Classifications

    • 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

Landscapes

  • 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)
CNB038148587A 2002-04-26 2003-04-25 用于适配天线特性的、具有电可调整响应的调谐器输入滤波器 Expired - Fee Related CN100364229C (zh)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US37612702P 2002-04-26 2002-04-26
US37612802P 2002-04-26 2002-04-26
US60/376,127 2002-04-26
US60/376,128 2002-04-26

Publications (2)

Publication Number Publication Date
CN1663123A CN1663123A (zh) 2005-08-31
CN100364229C true CN100364229C (zh) 2008-01-23

Family

ID=29273049

Family Applications (1)

Application Number Title Priority Date Filing Date
CNB038148587A Expired - Fee Related CN100364229C (zh) 2002-04-26 2003-04-25 用于适配天线特性的、具有电可调整响应的调谐器输入滤波器

Country Status (9)

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

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20040104604A (ko) * 2002-04-26 2004-12-10 톰슨 라이센싱 소시에떼 아노님 안테나 특성에 적응하기 위해 전자적으로 조정가능한 중심주파수를 갖는 튜너 입력 필터
EP1500193B1 (en) * 2002-04-26 2008-10-01 Thomson Licensing Tuner input filter with electronically adjustable response 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
DE202011110299U1 (de) * 2011-12-02 2013-08-27 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 (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0047505A2 (de) * 1980-09-10 1982-03-17 Koenig & Bauer Aktiengesellschaft Verfahren und Einrichtung zum Einstellen von farbzonenbreiten Farbdosierelementen von Druckmaschinen

Family Cites Families (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
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
GB2196197B (en) * 1986-10-01 1990-09-19 Telefunken Electronic Gmbh Television tuner
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
US5715531A (en) * 1995-11-20 1998-02-03 Nextlevel Systems (Taiwan), Ltd. Synchronous tracking filter circuit for a broadcast satellite tuner
JPH11205700A (ja) * 1998-01-12 1999-07-30 Alps Electric Co Ltd 複同調回路
US6111603A (en) 1998-10-02 2000-08-29 Sony Corporation Portable field tester for measuring signal reception of a digitally broadcast signal
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
JP2001313580A (ja) * 2000-04-28 2001-11-09 New Japan Radio Co Ltd イメージ信号除去フィルタ
JP2002009573A (ja) * 2000-06-26 2002-01-11 Mitsubishi Electric Corp チューナブルフィルタ
EP1500193B1 (en) * 2002-04-26 2008-10-01 Thomson Licensing Tuner input filter with electronically adjustable response for adapting to antenna characteristic
JP4297136B2 (ja) * 2006-06-07 2009-07-15 ソニー株式会社 記憶装置

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0047505A2 (de) * 1980-09-10 1982-03-17 Koenig & Bauer Aktiengesellschaft Verfahren und Einrichtung zum Einstellen von farbzonenbreiten Farbdosierelementen von Druckmaschinen

Also Published As

Publication number Publication date
KR100997468B1 (ko) 2010-12-01
US20050237389A1 (en) 2005-10-27
JP2005524274A (ja) 2005-08-11
US7668519B2 (en) 2010-02-23
KR20040104605A (ko) 2004-12-10
EP1500193A1 (en) 2005-01-26
US7983638B2 (en) 2011-07-19
JP4987951B2 (ja) 2012-08-01
CN1663123A (zh) 2005-08-31
WO2003092160A1 (en) 2003-11-06
MXPA04010620A (es) 2004-12-13
DE60323825D1 (de) 2008-11-13
US20090310031A1 (en) 2009-12-17
AU2003223743A1 (en) 2003-11-10
EP1500193B1 (en) 2008-10-01
JP2010098747A (ja) 2010-04-30

Similar Documents

Publication Publication Date Title
US7983638B2 (en) Tuner input filter with electronically adjustable response for adapting to antenna characteristic
US5101509A (en) Rf filter alignment using digital processor clock
US7620379B2 (en) Radio frequency tuner
US20050162570A1 (en) Tuner input filter with electronically adjustable center frequency for adapting to antenna characteristic
US6954625B2 (en) Tuner and method of aligning a tuner
US4881272A (en) Multi-band FM receiver for receiving FM broadcasting signals and TV broadcasting sound signals
JP3250785B2 (ja) テレビチューナ
JPH0463012A (ja) ダブルコンバージョンチューナーの自動同調方法
JP2004215034A (ja) トラッキングフィルタの自動調整可能なチューナ
JP2005510933A (ja) チューナの入力における信号強度を判定する方法
US7650123B2 (en) Receiver and a method of attenuating a disturbance signal by a trap circuit having its resonance frequency adjustable
JP3816089B2 (ja) ラジオ受信機のトラッキング調整方法及びラジオ受信機
JP3893338B2 (ja) ラジオ受信機
JP2008271403A (ja) Ｐｌｌ周波数シンセサイザ、受信装置及び送信装置
JPS6174412A (ja) テレビジヨンチユ−ナ
JPH05115048A (ja) チユーナー回路
JP3106693U (ja) ラジオ受信機
JP2001036384A (ja) 可変同調フィルタ及びその調整方法及びそれを用いた受信装置及び送信装置
JPS6174411A (ja) テレビジヨンチユ−ナ
JPH11205167A (ja) Ｆｍ受信機
JPH06252705A (ja) 電子同調受信機

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20080123

Termination date: 20130425