JP2005524273A - アンテナ特性に適応するための電子的調整可能中心周波数を有するチューナ入力フィルタ - Google Patents

アンテナ特性に適応するための電子的調整可能中心周波数を有するチューナ入力フィルタ Download PDF

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Publication number
JP2005524273A
JP2005524273A JP2004500406A JP2004500406A JP2005524273A JP 2005524273 A JP2005524273 A JP 2005524273A JP 2004500406 A JP2004500406 A JP 2004500406A JP 2004500406 A JP2004500406 A JP 2004500406A JP 2005524273 A JP2005524273 A JP 2005524273A
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JP
Japan
Prior art keywords
signal
channel
input filter
television
tuned
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Pending
Application number
JP2004500406A
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English (en)
Japanese (ja)
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JP2005524273A5 (https=
Inventor
ピューゲル，マイケル，アントニー
グラブス，ゲイリー，ディーン
ホール，エドワード，アレン
マッターズポー，マックス，ワード
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Thomson Licensing SAS
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Thomson Licensing SAS
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Publication date
Application filed by Thomson Licensing SAS filed Critical Thomson Licensing SAS
Publication of JP2005524273A publication Critical patent/JP2005524273A/ja
Publication of JP2005524273A5 publication Critical patent/JP2005524273A5/ja
Pending legal-status Critical Current

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    • 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
    • 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)
JP2004500406A 2002-04-26 2003-04-25 アンテナ特性に適応するための電子的調整可能中心周波数を有するチューナ入力フィルタ Pending JP2005524273A (ja)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US37612802P 2002-04-26 2002-04-26
US37612702P 2002-04-26 2002-04-26
US37609902P 2002-04-26 2002-04-26
PCT/US2003/012871 WO2003092159A1 (en) 2002-04-26 2003-04-25 Tuner input filter with electronically adjustable center frequency for adapting to antenna characteristic

Publications (2)

Publication Number Publication Date
JP2005524273A true JP2005524273A (ja) 2005-08-11
JP2005524273A5 JP2005524273A5 (https=) 2006-06-15

Family

ID=29273644

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2004500406A Pending JP2005524273A (ja) 2002-04-26 2003-04-25 アンテナ特性に適応するための電子的調整可能中心周波数を有するチューナ入力フィルタ

Country Status (8)

Country Link
US (1) US20050162570A1 (https=)
EP (1) EP1500194A1 (https=)
JP (1) JP2005524273A (https=)
KR (1) KR20040104604A (https=)
CN (1) CN1663122A (https=)
AU (1) AU2003234225A1 (https=)
MX (1) MXPA04010619A (https=)
WO (1) WO2003092159A1 (https=)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011239466A (ja) * 2006-12-14 2011-11-24 Csr Plc Ｆｍ信号の品質測定

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JP2004048121A (ja) * 2002-07-09 2004-02-12 Alps Electric Co Ltd テレビジョンチューナ
KR100925430B1 (ko) * 2002-12-28 2009-11-06 엘지전자 주식회사 Ｒｆ 스위치
US7680477B2 (en) * 2004-09-03 2010-03-16 Texas Instruments Incorporated Integrated radio frequency filters for multiband transceivers
US8149799B2 (en) 2006-09-29 2012-04-03 Broadcom Corporation Method and system for interfacing to a plurality of antennas
US8063839B2 (en) * 2006-10-17 2011-11-22 Quantenna Communications, Inc. Tunable antenna system
US20080158076A1 (en) * 2006-12-28 2008-07-03 Broadcom Corporation Dynamically adjustable narrow bandwidth antenna for wide band systems
US20110034139A1 (en) * 2009-08-04 2011-02-10 Quintic Holdings System and Method of Automatic Tuning Adjustment for Portable Radio Frequency Receivers
TWI387764B (zh) * 2009-09-08 2013-03-01 Wistron Neweb Corp 天線偵測電路及其相關數位廣播接收器
CN102023254B (zh) * 2009-09-16 2012-11-21 启碁科技股份有限公司 天线检测电路及其相关数字广播接收器
JP4818439B2 (ja) * 2010-01-15 2011-11-16 株式会社東芝 電子機器および受信チャンネルのプリセット方法
JP6451123B2 (ja) * 2014-07-22 2019-01-16 船井電機株式会社 高周波回路
CN110934558A (zh) * 2019-12-05 2020-03-31 深圳市资福医疗技术有限公司 一种胶囊内窥镜的数据通信系统及方法
US11201602B1 (en) 2020-09-17 2021-12-14 Analog Devices, Inc. Apparatus and methods for tunable filtering
US11201600B1 (en) 2020-10-05 2021-12-14 Analog Devices, Inc. Apparatus and methods for control and calibration of tunable filters
CN119362001B (zh) * 2024-12-25 2025-03-07 南京赛格微电子科技股份有限公司 具备自动调谐功能的微波腔体滤波器系统

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US5187115A (en) * 1977-12-05 1993-02-16 Plasma Physics Corp. Method of forming semiconducting materials and barriers using a dual enclosure apparatus
US4349840A (en) * 1980-11-25 1982-09-14 Rca Corporation Apparatus for automatically steering an electrically steerable television antenna
DE3512873A1 (de) * 1985-04-11 1986-10-30 Deutsche Thomson-Brandt Gmbh, 7730 Villingen-Schwenningen Abstimmsystem fuer fernsehgeraete
NL8503274A (nl) * 1985-11-27 1987-06-16 Philips Nv Ontvanger voorzien van een automatische frequentieregellus.
JPH0232248U (https=) * 1988-08-24 1990-02-28
JP2542955B2 (ja) * 1990-06-29 1996-10-09 三洋電機株式会社 自動選局回路における信号強度のピ―ク検出回路
US5101509A (en) * 1990-09-14 1992-03-31 Ford Motor Company Rf filter alignment using digital processor clock
US5287115A (en) * 1992-07-10 1994-02-15 General Instrument Corporation Automatic adjustment of receiver apparatus based on channel-bit-error-rate-affected parameter measurement
TW353245B (en) * 1995-06-06 1999-02-21 Thomson Consumer Electronics Saw filter for a tuner of a digital satellite receiver
EP0834991A1 (en) * 1996-10-02 1998-04-08 Irdeto B.V. Method for automatically searching a frequency range for signal channels in a receiver for digitally modulated signals, and receiver for applying such a method
BR9909264A (pt) * 1998-09-28 2002-01-02 Matsushita Eletric Industrtial Receptor vsb
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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KR100997468B1 (ko) * 2002-04-26 2010-12-01 톰슨 라이센싱 안테나 특성에 적응하는 전자 조정가능한 응답을 갖는 튜너입력 필터

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011239466A (ja) * 2006-12-14 2011-11-24 Csr Plc Ｆｍ信号の品質測定

Also Published As

Publication number Publication date
AU2003234225A1 (en) 2003-11-10
MXPA04010619A (es) 2004-12-13
KR20040104604A (ko) 2004-12-10
CN1663122A (zh) 2005-08-31
WO2003092159A1 (en) 2003-11-06
US20050162570A1 (en) 2005-07-28
EP1500194A1 (en) 2005-01-26

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