WO1997008811A3 - Convertisseur cc-cc a modulateur fsk integre - Google Patents
Convertisseur cc-cc a modulateur fsk integre Download PDFInfo
- 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
Links
Classifications
-
- 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
- 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.
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 |
---|---|---|---|
CH235495 | 1995-08-17 | ||
CH2354/95-0 | 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)
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)
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 |
-
1996
- 1996-08-19 WO PCT/EP1996/003646 patent/WO1997008811A2/fr active Application Filing
- 1996-08-19 AU AU68744/96A patent/AU6874496A/en not_active Abandoned
Patent Citations (4)
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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