JP4282490B2 - フィルタ自動調整装置及び通信機 - Google Patents

フィルタ自動調整装置及び通信機 Download PDF

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Publication number
JP4282490B2
JP4282490B2 JP2004001455A JP2004001455A JP4282490B2 JP 4282490 B2 JP4282490 B2 JP 4282490B2 JP 2004001455 A JP2004001455 A JP 2004001455A JP 2004001455 A JP2004001455 A JP 2004001455A JP 4282490 B2 JP4282490 B2 JP 4282490B2
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JP
Japan
Prior art keywords
filter
value
signal
counter value
adjustment
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
JP2004001455A
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English (en)
Japanese (ja)
Other versions
JP2005197975A (ja
JP2005197975A5 (enExample
Inventor
勝 福泉
修一 黒田
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.)
Panasonic Corp
Panasonic Holdings Corp
Original Assignee
Panasonic Corp
Matsushita Electric Industrial 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 Panasonic Corp, Matsushita Electric Industrial Co Ltd filed Critical Panasonic Corp
Priority to JP2004001455A priority Critical patent/JP4282490B2/ja
Priority to US11/007,620 priority patent/US7400868B2/en
Priority to CN200510004178.4A priority patent/CN1638275A/zh
Publication of JP2005197975A publication Critical patent/JP2005197975A/ja
Publication of JP2005197975A5 publication Critical patent/JP2005197975A5/ja
Application granted granted Critical
Publication of JP4282490B2 publication Critical patent/JP4282490B2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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
    • 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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H11/00—Networks using active elements
    • H03H11/02—Multiple-port networks
    • H03H11/04—Frequency selective two-port networks
    • H03H11/0422—Frequency selective two-port networks using transconductance amplifiers, e.g. gmC filters
    • H03H11/0472—Current or voltage controlled filters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
    • H04B1/1027—Means associated with receiver for limiting or suppressing noise or interference assessing signal quality or detecting noise/interference for the received signal
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H2210/00—Indexing scheme relating to details of tunable filters
    • H03H2210/02—Variable filter component
    • H03H2210/021—Amplifier, e.g. transconductance amplifier
    • H03H2210/023—Tuning of transconductance via tail current source
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H2210/00—Indexing scheme relating to details of tunable filters
    • H03H2210/04—Filter calibration method
    • 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
    • H03J2200/32—Tuning of tracking filter

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Networks Using Active Elements (AREA)
JP2004001455A 2004-01-06 2004-01-06 フィルタ自動調整装置及び通信機 Expired - Fee Related JP4282490B2 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2004001455A JP4282490B2 (ja) 2004-01-06 2004-01-06 フィルタ自動調整装置及び通信機
US11/007,620 US7400868B2 (en) 2004-01-06 2004-12-08 Automatic tuning apparatus for filter and communication instrument
CN200510004178.4A CN1638275A (zh) 2004-01-06 2005-01-06 滤波器和通信仪器的自动调谐装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2004001455A JP4282490B2 (ja) 2004-01-06 2004-01-06 フィルタ自動調整装置及び通信機

Publications (3)

Publication Number Publication Date
JP2005197975A JP2005197975A (ja) 2005-07-21
JP2005197975A5 JP2005197975A5 (enExample) 2005-10-27
JP4282490B2 true JP4282490B2 (ja) 2009-06-24

Family

ID=34709003

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2004001455A Expired - Fee Related JP4282490B2 (ja) 2004-01-06 2004-01-06 フィルタ自動調整装置及び通信機

Country Status (3)

Country Link
US (1) US7400868B2 (enExample)
JP (1) JP4282490B2 (enExample)
CN (1) CN1638275A (enExample)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7761067B1 (en) * 2003-05-15 2010-07-20 Marvell International Ltd. Iterative filter circuit calibration
US7583948B2 (en) * 2005-04-28 2009-09-01 Kabushiki Kaisha Toshiba Time constant automatic adjusting circuit, filter circuit system, and method of automatically adjusting time constant
JP2007129616A (ja) 2005-11-07 2007-05-24 Matsushita Electric Ind Co Ltd 受信機
JP4922649B2 (ja) * 2006-04-03 2012-04-25 株式会社東芝 フィルタの調整回路
US7561865B2 (en) * 2006-09-29 2009-07-14 Silicon Laboratories, Inc. System and method for determining a resonant frequency in a communications device
US7937058B2 (en) * 2006-10-18 2011-05-03 Freescale Semiconductor, Inc. Controlling the bandwidth of an analog filter
JP4887242B2 (ja) * 2007-08-30 2012-02-29 オンセミコンダクター・トレーディング・リミテッド 中間周波数フィルタ帯域切替制御装置
KR20100078231A (ko) * 2008-12-30 2010-07-08 삼성전자주식회사 무선 통신 시스템의 참조 귀환 회로를 이용한 필터링 장치 및 방법
GB0916369D0 (en) * 2009-09-18 2009-10-28 Schrader Electronics Ltd Tracking filter apparatus for wheel monitoring systems
US8554267B2 (en) * 2009-12-26 2013-10-08 Motorola Solutions, Inc. Broadband input frequency adaptive technique for filter tuning and quadrature generation
JP2011250035A (ja) * 2010-05-25 2011-12-08 Sony Corp 受信装置、受信方法、プログラム、および受信システム
JP5517808B2 (ja) * 2010-07-22 2014-06-11 三菱電機株式会社 フィルタ装置
JP5017436B2 (ja) * 2010-08-19 2012-09-05 株式会社東芝 フィルタ調整装置、電源制御システム、およびフィルタ調整方法、
JP6078868B2 (ja) * 2012-04-23 2017-02-15 セミコンダクター・コンポーネンツ・インダストリーズ・リミテッド・ライアビリティ・カンパニー チューナ
JP5323230B1 (ja) * 2012-06-15 2013-10-23 株式会社東芝 電子機器、フィルタ調整装置、フィルタ調整方法、及びフィルタ調整プログラム
CN103424688B (zh) * 2013-08-23 2016-10-05 沈阳东软医疗系统有限公司 检测de-q故障的方法、装置、电路和检测高压故障的系统
US9673782B1 (en) * 2016-08-16 2017-06-06 Qualcomm Inc. Center frequency and Q tuning of biquad filter by amplitude-limited oscillation-based calibration
CN106911321B (zh) * 2017-03-31 2023-11-03 泉芯电子技术(深圳)有限公司 一种快速调谐电路
CN113996562A (zh) * 2021-11-23 2022-02-01 格林美股份有限公司 一种基于伏安特性曲线的电池分选方法、装置及电子设备

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3921085A (en) * 1973-11-23 1975-11-18 William J Keane Frequency discriminator apparatus
JPS622038B2 (enExample) * 1979-12-26 1987-01-17 Daiyamondo Shamurotsuku Tekunorojiizu Sa
US4539566A (en) * 1982-11-04 1985-09-03 Texas Instruments Incorporated Automatic interference canceling apparatus
JPH0693594B2 (ja) * 1989-02-16 1994-11-16 株式会社東芝 アナログフィルタの自動調整回路
US5438304A (en) * 1990-12-19 1995-08-01 Jennings; Peter R. Automatically tuned notch filter for providing bandpass and band reject signals
US5369793A (en) * 1991-12-12 1994-11-29 Raytheon Company RF receiver adapted to process received RF pulses and reject RF continuous wave signals
DE59209222D1 (de) * 1992-05-12 1998-04-09 Nokia Deutschland Gmbh Übertragungsanordnung für die übertragung eines auf eine trägerschwingung aufmodulierten nutzsignales
JPH0983294A (ja) * 1995-09-14 1997-03-28 Asahi Kasei Micro Syst Kk Ｇｍ−Ｃフィルタ回路およびＧｍ−Ｃフィルタの調整方法
JP3164008B2 (ja) * 1997-03-04 2001-05-08 日本電気株式会社 無線受信機
US6058148A (en) * 1997-06-27 2000-05-02 Ford Motor Company Digital processing radio receiver with adaptive bandwidth control
US6178314B1 (en) * 1997-06-27 2001-01-23 Visteon Global Technologies, Inc. Radio receiver with adaptive bandwidth controls at intermediate frequency and audio frequency sections
US6307443B1 (en) * 1999-09-24 2001-10-23 Agere Systems Guardian Corp. Bandpass filters with automatic tuning adjustment
CA2357491A1 (en) * 2001-09-17 2003-03-17 Ralph Mason Filter tuning using direct digital sub-sampling
US6888411B2 (en) * 2003-06-06 2005-05-03 Broadcom Corporation Radio frequency variable gain amplifier with linearity insensitive to gain

Also Published As

Publication number Publication date
US7400868B2 (en) 2008-07-15
JP2005197975A (ja) 2005-07-21
CN1638275A (zh) 2005-07-13
US20050148309A1 (en) 2005-07-07

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