TW200733594A - Improved RF device - Google Patents

Improved RF device

Info

Publication number
TW200733594A
TW200733594A TW095137391A TW95137391A TW200733594A TW 200733594 A TW200733594 A TW 200733594A TW 095137391 A TW095137391 A TW 095137391A TW 95137391 A TW95137391 A TW 95137391A TW 200733594 A TW200733594 A TW 200733594A
Authority
TW
Taiwan
Prior art keywords
control unit
radio frequency
inductor
contact
smart card
Prior art date
Application number
TW095137391A
Other languages
Chinese (zh)
Inventor
Derk Reefman
Peter Jan Slikkerveer
Pawel Musial
Original Assignee
Koninkl Philips Electronics Nv
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 Koninkl Philips Electronics Nv filed Critical Koninkl Philips Electronics Nv
Publication of TW200733594A publication Critical patent/TW200733594A/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
    • G06K19/073—Special arrangements for circuits, e.g. for protecting identification code in memory
    • G06K19/07309—Means for preventing undesired reading or writing from or onto record carriers
    • G06K19/07345—Means for preventing undesired reading or writing from or onto record carriers by activating or deactivating at least a part of the circuit on the record carrier, e.g. ON/OFF switches
    • 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
    • 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

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)
  • Computer Security & Cryptography (AREA)
  • General Engineering & Computer Science (AREA)
  • Near-Field Transmission Systems (AREA)

Abstract

A contact-less radio frequency smart card (102) comprises a control unit (108) and an inductor (104) configured to be connected to the control unit and configured to interact with a radio frequency electromagnetic field (116) and thereby convey energy and/or modulated information to the control unit. The contact-less radio frequency smart card also comprises switching means (106) that are configured to at least switch the inductor from being connected to the control unit to being disconnected from the control unit.
TW095137391A 2005-10-13 2006-10-11 Improved RF device TW200733594A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP05109503 2005-10-13

Publications (1)

Publication Number Publication Date
TW200733594A true TW200733594A (en) 2007-09-01

Family

ID=37836974

Family Applications (1)

Application Number Title Priority Date Filing Date
TW095137391A TW200733594A (en) 2005-10-13 2006-10-11 Improved RF device

Country Status (2)

Country Link
TW (1) TW200733594A (en)
WO (1) WO2007042995A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2600465B (en) * 2020-10-30 2024-05-22 Drayson Tech Europe Ltd Method and apparatus for controlling circuitry with particular application to smartcards

Also Published As

Publication number Publication date
WO2007042995A2 (en) 2007-04-19

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