WO2007145920A3 - Rf device comparing dac output to incoming signal for selectively performing an action - Google Patents

Rf device comparing dac output to incoming signal for selectively performing an action Download PDF

Info

Publication number
WO2007145920A3
WO2007145920A3 PCT/US2007/013199 US2007013199W WO2007145920A3 WO 2007145920 A3 WO2007145920 A3 WO 2007145920A3 US 2007013199 W US2007013199 W US 2007013199W WO 2007145920 A3 WO2007145920 A3 WO 2007145920A3
Authority
WO
WIPO (PCT)
Prior art keywords
action
incoming signal
selectively performing
dac output
device comparing
Prior art date
Application number
PCT/US2007/013199
Other languages
French (fr)
Other versions
WO2007145920A2 (en
Inventor
Naresh Batra
Heena Nandu
Original Assignee
Intelleflex Corp
Naresh Batra
Heena Nandu
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 Intelleflex Corp, Naresh Batra, Heena Nandu filed Critical Intelleflex Corp
Priority to EP07795742A priority Critical patent/EP2027571A2/en
Publication of WO2007145920A2 publication Critical patent/WO2007145920A2/en
Publication of WO2007145920A3 publication Critical patent/WO2007145920A3/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
    • G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
    • G06K19/07749—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card
    • 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
    • G06K19/0716—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 a sensor or an interface to a sensor

Abstract

A Radio Frequency (RF) device such as a Radio Frequency Identification (RFID) tag according to one embodiment includes a Digital to Analog Converter (DAC) for generating a reference signal based on a stored digital comparison criteria value, and a mechanism for comparing an incoming signal to the reference signal. The device performs an action such as backscattering based on the comparison. Additional systems and methods are also disclosed.
PCT/US2007/013199 2006-06-09 2007-06-04 Rf device comparing dac output to incoming signal for selectively performing an action WO2007145920A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP07795742A EP2027571A2 (en) 2006-06-09 2007-06-04 Rf device comparing dac output to incoming signal for selectively performing an action

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/423,411 US8098159B2 (en) 2006-06-09 2006-06-09 RF device comparing DAC output to incoming signal for selectively performing an action
US11/423,411 2006-06-09

Publications (2)

Publication Number Publication Date
WO2007145920A2 WO2007145920A2 (en) 2007-12-21
WO2007145920A3 true WO2007145920A3 (en) 2008-08-14

Family

ID=38821321

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2007/013199 WO2007145920A2 (en) 2006-06-09 2007-06-04 Rf device comparing dac output to incoming signal for selectively performing an action

Country Status (4)

Country Link
US (1) US8098159B2 (en)
EP (1) EP2027571A2 (en)
CN (1) CN101438331A (en)
WO (1) WO2007145920A2 (en)

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Also Published As

Publication number Publication date
CN101438331A (en) 2009-05-20
US8098159B2 (en) 2012-01-17
US20070285237A1 (en) 2007-12-13
EP2027571A2 (en) 2009-02-25
WO2007145920A2 (en) 2007-12-21

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