IN2014CN02489A - - Google Patents

Info

Publication number
IN2014CN02489A
IN2014CN02489A IN2489CHN2014A IN2014CN02489A IN 2014CN02489 A IN2014CN02489 A IN 2014CN02489A IN 2489CHN2014 A IN2489CHN2014 A IN 2489CHN2014A IN 2014CN02489 A IN2014CN02489 A IN 2014CN02489A
Authority
IN
India
Prior art keywords
transceiver
load modulation
amount
tag mode
power harvested
Prior art date
Application number
Inventor
Cristian Marcu
Jafar Savoj
Original Assignee
Qualcomm 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 Qualcomm Inc filed Critical Qualcomm Inc
Publication of IN2014CN02489A publication Critical patent/IN2014CN02489A/en

Links

Classifications

    • H04B5/48—
    • 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
    • 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
    • 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
    • G06K19/0723—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 the record carrier comprising an arrangement for non-contact communication, e.g. wireless communication circuits on transponder cards, non-contact smart cards or RFIDs
    • 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

Abstract

Exemplary embodiments are directed to adaptive signal scaling in NFC transceivers. A transceiver may include a programmable load modulation element configured for load modulation in a tag mode. Further the transceiver may include a sensing element for measuring an amount of power harvested by the transceiver in the tag mode. The transceiver may also include a controller configured for adjusting a depth of load modulation of the programmable load modulation element depending on the amount of power harvested.
IN2489CHN2014 2011-10-26 2012-10-26 IN2014CN02489A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US13/282,328 US9384373B2 (en) 2011-10-26 2011-10-26 Adaptive signal scaling in NFC transceivers
PCT/US2012/062286 WO2013063514A2 (en) 2011-10-26 2012-10-26 Adaptive signal scaling in nfc transceivers

Publications (1)

Publication Number Publication Date
IN2014CN02489A true IN2014CN02489A (en) 2015-06-26

Family

ID=47178348

Family Applications (1)

Application Number Title Priority Date Filing Date
IN2489CHN2014 IN2014CN02489A (en) 2011-10-26 2012-10-26

Country Status (7)

Country Link
US (1) US9384373B2 (en)
EP (1) EP2771838B1 (en)
JP (1) JP2014532927A (en)
KR (1) KR101621045B1 (en)
CN (1) CN104025112B (en)
IN (1) IN2014CN02489A (en)
WO (1) WO2013063514A2 (en)

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Also Published As

Publication number Publication date
KR101621045B1 (en) 2016-05-13
CN104025112B (en) 2018-10-19
US9384373B2 (en) 2016-07-05
US20130109304A1 (en) 2013-05-02
EP2771838B1 (en) 2017-03-08
WO2013063514A3 (en) 2013-06-13
WO2013063514A2 (en) 2013-05-02
EP2771838A2 (en) 2014-09-03
JP2014532927A (en) 2014-12-08
CN104025112A (en) 2014-09-03
KR20140096315A (en) 2014-08-05

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