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CA2287441A1 - Data communications terminal and method of adjusting a power signal generated therefrom - Google Patents

Data communications terminal and method of adjusting a power signal generated therefrom Download PDF

Info

Publication number
CA2287441A1
CA2287441A1 CA002287441A CA2287441A CA2287441A1 CA 2287441 A1 CA2287441 A1 CA 2287441A1 CA 002287441 A CA002287441 A CA 002287441A CA 2287441 A CA2287441 A CA 2287441A CA 2287441 A1 CA2287441 A1 CA 2287441A1
Authority
CA
Canada
Prior art keywords
power
node
data communications
communications terminal
circuit
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.)
Abandoned
Application number
CA002287441A
Other languages
English (en)
French (fr)
Inventor
Stephen Leigh Kuffner
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.)
Motorola Solutions Inc
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2287441A1 publication Critical patent/CA2287441A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • G06K19/0701—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips at least one of the integrated circuit chips comprising an arrangement for power management
    • 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
    • H04B1/59—Responders; Transponders
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • G06K19/0701—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips at least one of the integrated circuit chips comprising an arrangement for power management
    • G06K19/0715—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips at least one of the integrated circuit chips comprising an arrangement for power management the arrangement including means to regulate power transfer to the integrated circuit
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/0008—General problems related to the reading of electronic memory record carriers, independent of its reading method, e.g. power transfer

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Transmitters (AREA)
  • Near-Field Transmission Systems (AREA)
  • Transceivers (AREA)
CA002287441A 1998-02-19 1998-12-18 Data communications terminal and method of adjusting a power signal generated therefrom Abandoned CA2287441A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US2582698A 1998-02-19 1998-02-19
US09/025,826 1998-02-19
PCT/US1998/027003 WO1999043096A1 (en) 1998-02-19 1998-12-18 Data communications terminal and method of adjusting a power signal generated therefrom

Publications (1)

Publication Number Publication Date
CA2287441A1 true CA2287441A1 (en) 1999-08-26

Family

ID=21828254

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002287441A Abandoned CA2287441A1 (en) 1998-02-19 1998-12-18 Data communications terminal and method of adjusting a power signal generated therefrom

Country Status (9)

Country Link
EP (1) EP0976203A4 (zh)
JP (1) JP2001520855A (zh)
KR (1) KR20010006519A (zh)
CN (1) CN1252908A (zh)
AU (1) AU2004099A (zh)
BR (1) BR9808937A (zh)
CA (1) CA2287441A1 (zh)
TR (1) TR199902594T1 (zh)
WO (1) WO1999043096A1 (zh)

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FR2780220A1 (fr) 1998-06-22 1999-12-24 Sgs Thomson Microelectronics Transmission de donnees numeriques sur une ligne d'alimentation alternative
FR2780221B1 (fr) 1998-06-22 2000-09-29 Sgs Thomson Microelectronics Emission d'une consigne de fonctionnement par une ligne d'alimentation alternative
FR2792135B1 (fr) 1999-04-07 2001-11-02 St Microelectronics Sa Fonctionnement en complage tres proche d'un systeme a transpondeur electromagnetique
US6650226B1 (en) 1999-04-07 2003-11-18 Stmicroelectronics S.A. Detection, by an electromagnetic transponder reader, of the distance separating it from a transponder
FR2792130B1 (fr) * 1999-04-07 2001-11-16 St Microelectronics Sa Transpondeur electromagnetique a fonctionnement en couplage tres proche
FR2792132B1 (fr) 1999-04-07 2001-11-02 St Microelectronics Sa Borne de lecture d'un transpondeur electromagnetique fonctionnant en couplage tres proche
FR2792134B1 (fr) 1999-04-07 2001-06-22 St Microelectronics Sa Detection de distance entre un transpondeur electromagnetique et une borne
FR2792136B1 (fr) 1999-04-07 2001-11-16 St Microelectronics Sa Transmission en duplex dans un systeme de transpondeurs electromagnetiques
US7049935B1 (en) 1999-07-20 2006-05-23 Stmicroelectronics S.A. Sizing of an electromagnetic transponder system for a dedicated distant coupling operation
FR2796781A1 (fr) 1999-07-20 2001-01-26 St Microelectronics Sa Dimensionnement d'un systeme a transpondeur electromagnetique pour un fonctionnement en hyperproximite
FR2804557B1 (fr) * 2000-01-31 2003-06-27 St Microelectronics Sa Adaptation de la puissance d'emission d'un lecteur de transpondeur electromagnetique
FR2808945B1 (fr) * 2000-05-12 2002-08-16 St Microelectronics Sa Evaluation du nombre de transpondeurs electromagnetiques dans le champ d'un lecteur
FR2808941B1 (fr) 2000-05-12 2002-08-16 St Microelectronics Sa Validation de la presence d'un transpondeur electromagnetique dans le champ d'un lecteur a demodulation d'amplitude
FR2808946A1 (fr) * 2000-05-12 2001-11-16 St Microelectronics Sa Validation de la presence d'un transpondeur electromagnetique dans le champ d'un lecteur
FR2808942B1 (fr) 2000-05-12 2002-08-16 St Microelectronics Sa Validation de la presence d'un transpondeur electromagnetique dans le champ d'un lecteur a demodulation de phase
FR2809235A1 (fr) 2000-05-17 2001-11-23 St Microelectronics Sa Antenne de generation d'un champ electromagnetique pour transpondeur
FR2812986B1 (fr) 2000-08-09 2002-10-31 St Microelectronics Sa Detection d'une signature electrique d'un transpondeur electromagnetique
US20030169169A1 (en) 2000-08-17 2003-09-11 Luc Wuidart Antenna generating an electromagnetic field for transponder
JP2004166384A (ja) 2002-11-12 2004-06-10 Sharp Corp 非接触型給電システムにおける電磁結合特性調整方法、給電装置、および非接触型給電システム
JP4198552B2 (ja) * 2003-07-25 2008-12-17 株式会社エヌ・ティ・ティ・ドコモ 無線受信機、無線送信機及びインピーダンス制御方法
DE102004022839A1 (de) * 2004-05-08 2005-12-01 Conti Temic Microelectronic Gmbh Sendeschaltung für ein Transpondersystem zur Übertragung eines digitalen Signals über eine Sendeantenne
EP1782331B1 (de) 2004-08-16 2018-01-31 Giesecke+Devrient Mobile Security GmbH Bidirektionaler, kontaktloser ladevorgang zwischen mehreren akkumulatoren
US8594567B2 (en) 2004-08-16 2013-11-26 Giesecke & Devrient Gmbh Controlled wireless charging of an accumulator in a chipcard
DE102005011611A1 (de) * 2005-03-14 2006-09-21 Giesecke & Devrient Gmbh Datenübertragungsverfahren und RFID-Lesegerät
US7926719B2 (en) 2005-10-17 2011-04-19 Nxp B.V. Electronic circuit for a contactless reader device
GB2443234B8 (en) 2006-10-24 2009-01-28 Innovision Res & Tech Plc Near field RF communicators and near field RF communications enabled devices
US8836481B2 (en) 2007-01-08 2014-09-16 Quotainne Enterprises Llc Transponders and methods for operating a transponder
JP5159396B2 (ja) 2008-04-03 2013-03-06 キヤノン株式会社 通信装置、その制御方法及びプログラム
EP2254074A1 (en) 2009-05-20 2010-11-24 Legic Identsystems Ag Read/write device for non-contact communication
KR101198006B1 (ko) 2011-03-23 2012-11-05 삼성전기주식회사 무선 전력 송신 장치 및 무선 전력 송수신 장치
US8903329B2 (en) 2011-05-31 2014-12-02 Facebook, Inc. Switchable antenna elements for a wireless communications device
US9191829B2 (en) * 2011-05-31 2015-11-17 Facebook, Inc. Sensing proximity utilizing a wireless radio subsystem
FR2978890B1 (fr) * 2011-08-05 2014-06-13 Continental Automotive France Procede de calibration d'un lecteur rfid et lecteur rfid pour la mise en oeuvre de ce procede
TWI464957B (zh) * 2011-10-07 2014-12-11 Wistron Corp 調整模組、具有調整模組之電子裝置及其天線效能調整之方法
KR101382929B1 (ko) * 2011-12-19 2014-04-09 엘지이노텍 주식회사 임피던스 정합 방법 및 임피던스 정합 장치
GB2502787B (en) * 2012-06-06 2015-06-17 Samsung Electronics Co Ltd Adaptive antenna impedance matching
GB2502848B (en) * 2012-06-06 2015-01-28 Samsung Electronics Co Ltd Adaptive antenna impedance matching
US9392558B2 (en) * 2012-06-08 2016-07-12 Qualcomm Incorporated Control of transmit power and adjustment of antenna tuning network of a wireless device
KR101848303B1 (ko) 2012-07-10 2018-04-13 삼성전자주식회사 전력 전송을 제어하기 위한 방법 및 이를 위한 전력 송신기
KR101428360B1 (ko) * 2013-01-24 2014-08-14 서울대학교산학협력단 무선으로 전력을 전송하는 방법, 시스템 및 컴퓨터 판독 가능한 기록 매체
KR102283255B1 (ko) * 2014-10-10 2021-07-28 삼성전자주식회사 반도체 장치
CN110208674B (zh) * 2019-05-08 2021-05-25 天津大学 一种用于非线性辐射信号检测的定向耦合近场探针及系统
WO2022104723A1 (zh) * 2020-11-20 2022-05-27 华为技术有限公司 一种反射系数测量方法及装置

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JP3068745B2 (ja) * 1994-05-27 2000-07-24 ローム株式会社 高周波タグおよびこれを利用した情報交換システム
US3646397A (en) * 1970-04-13 1972-02-29 Motorola Inc Amplifier protection circuit responsive to temperature and overcurrent
US3852669A (en) * 1973-06-26 1974-12-03 Us Army Circuit to protect rf output amplifier against mismatch damage
US4353037A (en) * 1980-08-11 1982-10-05 Motorola, Inc. Amplifier protection circuit
JP2597623B2 (ja) * 1987-10-08 1997-04-09 株式会社トキメック 電磁誘導結合による電源供給方式
US5389829A (en) * 1991-09-27 1995-02-14 Exar Corporation Output limiter for class-D BICMOS hearing aid output amplifier
JPH08191259A (ja) * 1995-01-11 1996-07-23 Sony Chem Corp 非接触式ｉｃカードシステム用送受信装置

Also Published As

Publication number Publication date
EP0976203A4 (en) 2002-08-28
KR20010006519A (ko) 2001-01-26
WO1999043096A1 (en) 1999-08-26
AU2004099A (en) 1999-09-06
JP2001520855A (ja) 2001-10-30
TR199902594T1 (xx) 2000-07-21
CN1252908A (zh) 2000-05-10
EP0976203A1 (en) 2000-02-02
BR9808937A (pt) 2000-08-01

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