BR9808937A - Data communication terminal and method of adjusting a generated strength signal from it - Google Patents

Data communication terminal and method of adjusting a generated strength signal from it

Info

Publication number
BR9808937A
BR9808937A BR9808937-4A BR9808937A BR9808937A BR 9808937 A BR9808937 A BR 9808937A BR 9808937 A BR9808937 A BR 9808937A BR 9808937 A BR9808937 A BR 9808937A
Authority
BR
Brazil
Prior art keywords
communication terminal
data communication
adjusting
strength signal
portable
Prior art date
Application number
BR9808937-4A
Other languages
Portuguese (pt)
Inventor
Stephen Leigh Kuffner
Original Assignee
Motorola Inc
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 Motorola Inc filed Critical Motorola Inc
Publication of BR9808937A publication Critical patent/BR9808937A/en

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)

Abstract

<B>TERMINAL DE COMUNICAçãO DE DADOS E MéTODO DE AJUSTAR UM SINAL DE FORçA GERADO DO MESMO<D> Um terminal (102) de comunicação de dados inclui um circuito (106) de antena para distribuir um sinal de força para um dispositivo portátil de dados. O terminal abrange ainda um método para ajustar automaticamente a força vista pelo dispositivo portátil de dados sem qualquer realimentação de comunicação a partir do dispositivo portátil de dados mediante monitoração de uma características de impedância para o circuito de antena. Quando é detectada uma mudança nas características de impedância monitoradas, o terminal de comunicação de dados ajusta o nível de força para o sinal de força distribuído para o dispositivo portátil de dados.<B> DATA COMMUNICATION TERMINAL AND METHOD OF ADJUSTING A GENERATED POWER SIGNAL OF THE SAME <D> A data communication terminal (102) includes an antenna circuit (106) to distribute a power signal to a portable Dice. The terminal also includes a method for automatically adjusting the force seen by the portable data device without any communication feedback from the portable data device by monitoring an impedance characteristics for the antenna circuit. When a change in the monitored impedance characteristics is detected, the data communication terminal adjusts the strength level for the strength signal distributed to the portable data device.

BR9808937-4A 1998-02-19 1998-12-18 Data communication terminal and method of adjusting a generated strength signal from it BR9808937A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US2582698A 1998-02-19 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
BR9808937A true BR9808937A (en) 2000-08-01

Family

ID=21828254

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9808937-4A BR9808937A (en) 1998-02-19 1998-12-18 Data communication terminal and method of adjusting a generated strength signal from it

Country Status (9)

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

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FR2780221B1 (en) 1998-06-22 2000-09-29 Sgs Thomson Microelectronics TRANSMISSION OF AN OPERATING INSTRUCTION BY AN ALTERNATIVE POWER SUPPLY LINE
FR2780220A1 (en) 1998-06-22 1999-12-24 Sgs Thomson Microelectronics TRANSMISSION OF DIGITAL DATA ON AN ALTERNATIVE POWER LINE
FR2792132B1 (en) 1999-04-07 2001-11-02 St Microelectronics Sa READING TERMINAL OF AN ELECTROMAGNETIC TRANSPONDER OPERATING IN VERY CLOSE COUPLING
FR2792136B1 (en) 1999-04-07 2001-11-16 St Microelectronics Sa DUPLEX TRANSMISSION IN AN ELECTROMAGNETIC TRANSPONDER SYSTEM
FR2792135B1 (en) 1999-04-07 2001-11-02 St Microelectronics Sa VERY CLOSE COMPLAGE OPERATION OF AN ELECTROMAGNETIC TRANSPONDER SYSTEM
FR2792134B1 (en) 1999-04-07 2001-06-22 St Microelectronics Sa DISTANCE DETECTION BETWEEN AN ELECTROMAGNETIC TRANSPONDER AND A TERMINAL
FR2792130B1 (en) 1999-04-07 2001-11-16 St Microelectronics Sa ELECTROMAGNETIC TRANSPONDER WITH VERY CLOSE COUPLING OPERATION
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
FR2804557B1 (en) * 2000-01-31 2003-06-27 St Microelectronics Sa ADAPTING THE TRANSMISSION POWER OF AN ELECTROMAGNETIC TRANSPONDER DRIVE
FR2808945B1 (en) * 2000-05-12 2002-08-16 St Microelectronics Sa EVALUATION OF THE NUMBER OF ELECTROMAGNETIC TRANSPONDERS IN THE FIELD OF A READER
FR2808942B1 (en) 2000-05-12 2002-08-16 St Microelectronics Sa VALIDATION OF THE PRESENCE OF AN ELECTROMAGNETIC TRANSPONDER IN THE FIELD OF A PHASE DEMODULATION READER
FR2808946A1 (en) * 2000-05-12 2001-11-16 St Microelectronics Sa VALIDATION OF THE PRESENCE OF AN ELECTROMAGNETIC TRANSPONDER IN THE FIELD OF A READER
FR2812986B1 (en) * 2000-08-09 2002-10-31 St Microelectronics Sa DETECTION OF AN ELECTRIC SIGNATURE OF AN ELECTROMAGNETIC TRANSPONDER
US20030169169A1 (en) 2000-08-17 2003-09-11 Luc Wuidart Antenna generating an electromagnetic field for transponder
JP2004166384A (en) 2002-11-12 2004-06-10 Sharp Corp Non-contact power feeding system, electromagnetic coupling characteristic adjustment method therein and power feeder
JP4198552B2 (en) * 2003-07-25 2008-12-17 株式会社エヌ・ティ・ティ・ドコモ Wireless receiver, wireless transmitter, and impedance control method
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EP1782331B1 (en) 2004-08-16 2018-01-31 Giesecke+Devrient Mobile Security GmbH User input device including user input evaluation and method
WO2006018231A1 (en) 2004-08-16 2006-02-23 Giesecke & Devrient Gmbh Controlled wireless charging of an accumulator in a chipcard
DE102005011611A1 (en) 2005-03-14 2006-09-21 Giesecke & Devrient Gmbh Data transmission method and RFID reader
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GB2443234B8 (en) * 2006-10-24 2009-01-28 Innovision Res & Tech Plc Near field RF communicators and near field RF communications enabled devices
WO2008084353A1 (en) 2007-01-08 2008-07-17 Nxp B.V. Transponders and methods for operating a transponder
JP5159396B2 (en) 2008-04-03 2013-03-06 キヤノン株式会社 Communication device, control method thereof, and program
EP2254074A1 (en) 2009-05-20 2010-11-24 Legic Identsystems Ag Read/write device for non-contact communication
KR101198006B1 (en) * 2011-03-23 2012-11-05 삼성전기주식회사 Wireless power transmitter and wireless power transceiver
US9191829B2 (en) 2011-05-31 2015-11-17 Facebook, Inc. Sensing proximity utilizing a wireless radio subsystem
US8903329B2 (en) 2011-05-31 2014-12-02 Facebook, Inc. Switchable antenna elements for a wireless communications device
FR2978890B1 (en) * 2011-08-05 2014-06-13 Continental Automotive France METHOD FOR CALIBRATING AN RFID READER AND RFID READER FOR CARRYING OUT SAID METHOD
TWI464957B (en) * 2011-10-07 2014-12-11 Wistron Corp Adjustment module, electronic device with the adjustment module, and antenna performance adjusting method thereof
KR101382929B1 (en) * 2011-12-19 2014-04-09 엘지이노텍 주식회사 Apparatus for matching impedence and method for matching impedence
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 (en) 2012-07-10 2018-04-13 삼성전자주식회사 Method for controlling power trasnmitting of wireless power transmitter and the wireless power transmitter thereof
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KR102283255B1 (en) * 2014-10-10 2021-07-28 삼성전자주식회사 Semiconductor device
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Also Published As

Publication number Publication date
WO1999043096A1 (en) 1999-08-26
CA2287441A1 (en) 1999-08-26
AU2004099A (en) 1999-09-06
TR199902594T1 (en) 2000-07-21
EP0976203A1 (en) 2000-02-02
CN1252908A (en) 2000-05-10
JP2001520855A (en) 2001-10-30
EP0976203A4 (en) 2002-08-28
KR20010006519A (en) 2001-01-26

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Legal Events

Date Code Title Description
B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: REFERENTE AO DESPACHO 8.6 PUBLICADO NA RPI 1891 DE 03/04/2007.