CA2191794A1 - Circuit d'alimentation et de modulation pour une etiquette interrogeable a distance - Google Patents
Circuit d'alimentation et de modulation pour une etiquette interrogeable a distanceInfo
- Publication number
- CA2191794A1 CA2191794A1 CA002191794A CA2191794A CA2191794A1 CA 2191794 A1 CA2191794 A1 CA 2191794A1 CA 002191794 A CA002191794 A CA 002191794A CA 2191794 A CA2191794 A CA 2191794A CA 2191794 A1 CA2191794 A1 CA 2191794A1
- Authority
- CA
- Canada
- Prior art keywords
- circuit
- inductive field
- distance
- series
- power
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
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
- G06K19/0723—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
Abstract
L'invention concerne un circuit d'alimentation et de modulation, notamment pour une étiquette interrogeable à distance. Ce circuit comprend notamment un bobinage pour capter un champ inducteur et moduler ce champ, des moyens pour constituer avec le bobinage un circuit résonnant en série en l'absence de modulation, des moyens pour constituer avec le bobinage un circuit résonnant parallèle pour moduler le champ inducteur, et des moyens pour redresser la tension induite par le champ inducteur dans le bobinagepour fournir une tension d'alimentation. Application notamment aux secteurs d'activité nécessitant le comptage, la comptabilisation, l'orientation, le contrôle d'objets et/ou de personnes munis d'étiquettes.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9514253 | 1995-12-01 | ||
FR9514253A FR2741978B1 (fr) | 1995-12-01 | 1995-12-01 | Circuit d'alimentation et de modulation pour une etiquette interrogeable a distance |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2191794A1 true CA2191794A1 (fr) | 1997-06-02 |
CA2191794C CA2191794C (fr) | 2006-06-13 |
Family
ID=9485076
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002191794A Expired - Fee Related CA2191794C (fr) | 1995-12-01 | 1996-11-29 | Circuit d'alimentation et de modulation pour une etiquette interrogeable a distance |
Country Status (7)
Country | Link |
---|---|
US (1) | US5808550A (fr) |
EP (1) | EP0777193B1 (fr) |
AT (1) | ATE214821T1 (fr) |
CA (1) | CA2191794C (fr) |
DE (1) | DE69619937T2 (fr) |
ES (1) | ES2174041T3 (fr) |
FR (1) | FR2741978B1 (fr) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE69733201T2 (de) * | 1997-12-23 | 2006-01-26 | Em Microelectronic-Marin S.A. | Transponder für "Halbduplex"-Kommunikation |
US6127929A (en) * | 1997-12-23 | 2000-10-03 | Em Microelectronic-Marin Sa | Transponder for half-duplex communication |
US6008727A (en) * | 1998-09-10 | 1999-12-28 | Xerox Corporation | Selectively enabled electronic tags |
FR2787655B1 (fr) * | 1998-12-21 | 2001-03-09 | St Microelectronics Sa | Modulation capacitive dans un transpondeur electromagnetique |
US6351906B1 (en) | 1999-11-05 | 2002-03-05 | Ernest M. Honig, Jr. | Firearm automatic locking system and method |
US6208269B1 (en) | 1999-12-29 | 2001-03-27 | The Boeing Company | Automatically activated rescue radio and associated method |
KR100721057B1 (ko) * | 2005-11-03 | 2007-05-22 | 한국전자통신연구원 | 무선주파수 식별 태그를 위한 전압체배기 |
EP2036000B1 (fr) * | 2006-06-14 | 2012-07-11 | International Business Machines Corporation | Procede et systeme pour lire un transpondeur |
US8234507B2 (en) | 2009-01-13 | 2012-07-31 | Metrologic Instruments, Inc. | Electronic-ink display device employing a power switching mechanism automatically responsive to predefined states of device configuration |
US9179492B2 (en) * | 2011-10-26 | 2015-11-03 | Texas Instruments Deutschland Gmbh | Electronic device, method and system for half duplex data transmission |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1577920A (en) * | 1976-11-01 | 1980-10-29 | Nedap Nv | Detection plate for identification systems |
NL8601021A (nl) * | 1986-04-22 | 1987-11-16 | Nedap Nv | Programmeerbare responder. |
NL8701565A (nl) * | 1987-07-03 | 1989-02-01 | Nedap Nv | Identificatiesysteem met twee werkingsmodes. |
NL8901659A (nl) | 1989-06-30 | 1991-01-16 | Nedap Nv | Multipassysteem. |
DK164336C (da) * | 1990-02-19 | 1992-11-02 | Karsten Gyde Pilested | Sikringssystem til at overvaage emners, f.eks. varers, passage forbi bestemte zoner |
US5317330A (en) * | 1992-10-07 | 1994-05-31 | Westinghouse Electric Corp. | Dual resonant antenna circuit for RF tags |
US5491468A (en) * | 1993-06-24 | 1996-02-13 | Westinghouse Electric Corporation | Identification system and method with passive tag |
DE69533507D1 (de) * | 1995-06-30 | 2004-10-21 | St Microelectronics Srl | Elektronisch getriebener Schalter, diesen verwendende integrierte Schaltung und elektronische Karte |
-
1995
- 1995-12-01 FR FR9514253A patent/FR2741978B1/fr not_active Expired - Fee Related
-
1996
- 1996-11-27 AT AT96402555T patent/ATE214821T1/de active
- 1996-11-27 DE DE69619937T patent/DE69619937T2/de not_active Expired - Lifetime
- 1996-11-27 ES ES96402555T patent/ES2174041T3/es not_active Expired - Lifetime
- 1996-11-27 EP EP96402555A patent/EP0777193B1/fr not_active Expired - Lifetime
- 1996-11-27 US US08/757,470 patent/US5808550A/en not_active Expired - Lifetime
- 1996-11-29 CA CA002191794A patent/CA2191794C/fr not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
FR2741978B1 (fr) | 1998-01-23 |
DE69619937T2 (de) | 2002-11-14 |
US5808550A (en) | 1998-09-15 |
DE69619937D1 (de) | 2002-04-25 |
CA2191794C (fr) | 2006-06-13 |
FR2741978A1 (fr) | 1997-06-06 |
ES2174041T3 (es) | 2002-11-01 |
EP0777193A1 (fr) | 1997-06-04 |
ATE214821T1 (de) | 2002-04-15 |
EP0777193B1 (fr) | 2002-03-20 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed |
Effective date: 20141201 |