CN1663122A - 用于适配天线特性的、具有电可调整中心频率的调谐器输入滤波器 - Google Patents

用于适配天线特性的、具有电可调整中心频率的调谐器输入滤波器 Download PDF

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Publication number
CN1663122A
CN1663122A CN038148560A CN03814856A CN1663122A CN 1663122 A CN1663122 A CN 1663122A CN 038148560 A CN038148560 A CN 038148560A CN 03814856 A CN03814856 A CN 03814856A CN 1663122 A CN1663122 A CN 1663122A
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CN
China
Prior art keywords
signal
channel
input filter
tuner
frequency
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.)
Pending
Application number
CN038148560A
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English (en)
Chinese (zh)
Inventor
迈克尔·A·帕格尔
加里·D·格拉布斯
爱德华·A·霍尔
马克斯·W·马特斯波格
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 CN1663122A publication Critical patent/CN1663122A/zh
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)
CN038148560A 2002-04-26 2003-04-25 用于适配天线特性的、具有电可调整中心频率的调谐器输入滤波器 Pending CN1663122A (zh)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US37612702P 2002-04-26 2002-04-26
US37612802P 2002-04-26 2002-04-26
US37609902P 2002-04-26 2002-04-26
US60/376,127 2002-04-26
US60/376,128 2002-04-26
US60/376,099 2002-04-26

Publications (1)

Publication Number Publication Date
CN1663122A true CN1663122A (zh) 2005-08-31

Family

ID=29273644

Family Applications (1)

Application Number Title Priority Date Filing Date
CN038148560A Pending CN1663122A (zh) 2002-04-26 2003-04-25 用于适配天线特性的、具有电可调整中心频率的调谐器输入滤波器

Country Status (8)

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

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101154949B (zh) * 2006-09-29 2011-05-18 美国博通公司 在通信系统中处理信号的方法及系统
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
CN105323027A (zh) * 2014-07-22 2016-02-10 船井电机株式会社 广播接收机和调谐装置
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
CN119362001A (zh) * 2024-12-25 2025-01-24 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

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US8063839B2 (en) * 2006-10-17 2011-11-22 Quantenna Communications, Inc. Tunable antenna system
GB0624982D0 (en) * 2006-12-14 2007-01-24 Cambridge Silicon Radio Ltd FM signal quality measurement
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
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

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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 (enExample) * 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
US6671002B1 (en) * 1998-09-28 2003-12-30 Matsushita Electric Industrial Co., Ltd. VSB receiver
US6111603A (en) * 1998-10-02 2000-08-29 Sony Corporation Portable field tester for measuring signal reception of a digitally broadcast signal
DE19904604A1 (de) * 1999-02-05 2000-06-15 Temic Semiconductor Gmbh Verfahren zum Abgleichen eines Bandpasses und Schaltungsanordnung zur Durchführung des Verfahrens
US6577688B1 (en) * 1999-11-01 2003-06-10 Lucent Technologies Inc. Host rejection filtering in a digital audio broadcasting system
EP1500193B1 (en) * 2002-04-26 2008-10-01 Thomson Licensing Tuner input filter with electronically adjustable response for adapting to antenna characteristic

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101154949B (zh) * 2006-09-29 2011-05-18 美国博通公司 在通信系统中处理信号的方法及系统
US8149799B2 (en) 2006-09-29 2012-04-03 Broadcom Corporation Method and system for interfacing to a plurality of antennas
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
CN105323027A (zh) * 2014-07-22 2016-02-10 船井电机株式会社 广播接收机和调谐装置
CN105323027B (zh) * 2014-07-22 2019-01-22 船井电机株式会社 广播接收机和调谐装置
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
CN119362001A (zh) * 2024-12-25 2025-01-24 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

Also Published As

Publication number Publication date
AU2003234225A1 (en) 2003-11-10
MXPA04010619A (es) 2004-12-13
WO2003092159A1 (en) 2003-11-06
JP2005524273A (ja) 2005-08-11
EP1500194A1 (en) 2005-01-26
US20050162570A1 (en) 2005-07-28
KR20040104604A (ko) 2004-12-10

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Effective date of abandoning: 20050831

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