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WO1997008811A3 - Convertisseur cc-cc a modulateur fsk integre - Google Patents

Convertisseur cc-cc a modulateur fsk integre Download PDF

Info

Publication number
WO1997008811A3
WO1997008811A3 PCT/EP1996/003646 EP9603646W WO9708811A3 WO 1997008811 A3 WO1997008811 A3 WO 1997008811A3 EP 9603646 W EP9603646 W EP 9603646W WO 9708811 A3 WO9708811 A3 WO 9708811A3
Authority
WO
WIPO (PCT)
Prior art keywords
converter
clock pulses
fsk modulator
quartz
controlled
Prior art date
Application number
PCT/EP1996/003646
Other languages
German (de)
English (en)
Other versions
WO1997008811A2 (fr
Inventor
Roland Kueng
Heinrich Zweifel
Original Assignee
Tagix Ag
Roland Kueng
Heinrich Zweifel
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 Tagix Ag, Roland Kueng, Heinrich Zweifel filed Critical Tagix Ag
Priority to AU68744/96A priority Critical patent/AU6874496A/en
Publication of WO1997008811A2 publication Critical patent/WO1997008811A2/fr
Publication of WO1997008811A3 publication Critical patent/WO1997008811A3/fr

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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 OR CALCULATING; 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)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)

Abstract

L'influence perturbatrice des impulsions d'horloge inévitablement émises par un convertisseur dans un système à transpondeur passif peut assurer une fonction utile si l'on utilise dans un convertisseur CC-CC des impulsions d'horloge commandées par un cristal de quartz au lieu du multivibrateur flou commandé par une horloge RC. Si l'on commande la fréquence du cristal de quartz à l'aide de diviseurs, on peut utiliser les impulsions d'horloge du convertisseur comme modulation FSK et transmettre ainsi des données du transpondeur ou de l'étiquette au lecteur.
PCT/EP1996/003646 1995-08-17 1996-08-19 Convertisseur cc-cc a modulateur fsk integre WO1997008811A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU68744/96A AU6874496A (en) 1995-08-17 1996-08-19 Dc-dc converter with integrated fsk modulator

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH2354/95-0 1995-08-17
CH235495 1995-08-17

Publications (2)

Publication Number Publication Date
WO1997008811A2 WO1997008811A2 (fr) 1997-03-06
WO1997008811A3 true WO1997008811A3 (fr) 1997-04-10

Family

ID=4231829

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1996/003646 WO1997008811A2 (fr) 1995-08-17 1996-08-19 Convertisseur cc-cc a modulateur fsk integre

Country Status (2)

Country Link
AU (1) AU6874496A (fr)
WO (1) WO1997008811A2 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19958265A1 (de) 1999-12-05 2001-06-21 Iq Mobil Electronics Gmbh Drahtloses Energieübertragungssystem mit erhöhter Ausgangsspannung

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3760256A (en) * 1972-07-31 1973-09-18 Us Army Synchronous dc power supply
EP0281142A2 (fr) * 1987-03-06 1988-09-07 Omron Tateisi Electronics Co. Système d'identification d'objets
EP0596124A1 (fr) * 1991-12-04 1994-05-11 Citizen Watch Co. Ltd. Support de donnees
WO1995000922A1 (fr) * 1993-06-24 1995-01-05 Westinghouse Electric Corporation Systeme et procede d'identification avec etiquette passive

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3760256A (en) * 1972-07-31 1973-09-18 Us Army Synchronous dc power supply
EP0281142A2 (fr) * 1987-03-06 1988-09-07 Omron Tateisi Electronics Co. Système d'identification d'objets
EP0596124A1 (fr) * 1991-12-04 1994-05-11 Citizen Watch Co. Ltd. Support de donnees
WO1995000922A1 (fr) * 1993-06-24 1995-01-05 Westinghouse Electric Corporation Systeme et procede d'identification avec etiquette passive

Also Published As

Publication number Publication date
WO1997008811A2 (fr) 1997-03-06
AU6874496A (en) 1997-03-19

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