FR3003418B1 - Mecanisme d'anticollision pour dispositif nfc - Google Patents

Mecanisme d'anticollision pour dispositif nfc

Info

Publication number
FR3003418B1
FR3003418B1 FR1352324A FR1352324A FR3003418B1 FR 3003418 B1 FR3003418 B1 FR 3003418B1 FR 1352324 A FR1352324 A FR 1352324A FR 1352324 A FR1352324 A FR 1352324A FR 3003418 B1 FR3003418 B1 FR 3003418B1
Authority
FR
France
Prior art keywords
nfc device
anticollision mechanism
mode
antenna
amplitude
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.)
Expired - Fee Related
Application number
FR1352324A
Other languages
English (en)
Other versions
FR3003418A1 (fr
Inventor
Pierre Rizzo
Nathalie Vallespin
Emmanuel Papart
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
STMicroelectronics Rousset SAS
Original Assignee
STMicroelectronics Rousset SAS
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 STMicroelectronics Rousset SAS filed Critical STMicroelectronics Rousset SAS
Priority to FR1352324A priority Critical patent/FR3003418B1/fr
Priority to US14/209,132 priority patent/US9425862B2/en
Publication of FR3003418A1 publication Critical patent/FR3003418A1/fr
Priority to US15/217,430 priority patent/US9634725B2/en
Application granted granted Critical
Publication of FR3003418B1 publication Critical patent/FR3003418B1/fr
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H04B5/70—
    • H04B5/73—
    • H04B5/77—

Abstract

L'invention concerne un procédé d'anticollision pour dispositif NFC (1) dans lequel en mode lecteur, on surveille une variation d'une information représentative de l'amplitude du signal dans une antenne (14) du dispositif, et si cette information excède un seuil, on provoque une commutation du dispositif en mode carte.
FR1352324A 2013-03-15 2013-03-15 Mecanisme d'anticollision pour dispositif nfc Expired - Fee Related FR3003418B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FR1352324A FR3003418B1 (fr) 2013-03-15 2013-03-15 Mecanisme d'anticollision pour dispositif nfc
US14/209,132 US9425862B2 (en) 2013-03-15 2014-03-13 Anticollision mechanism for an NFC device
US15/217,430 US9634725B2 (en) 2013-03-15 2016-07-22 Anticollision mechanism for an NFC device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1352324A FR3003418B1 (fr) 2013-03-15 2013-03-15 Mecanisme d'anticollision pour dispositif nfc

Publications (2)

Publication Number Publication Date
FR3003418A1 FR3003418A1 (fr) 2014-09-19
FR3003418B1 true FR3003418B1 (fr) 2016-07-29

Family

ID=48656077

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1352324A Expired - Fee Related FR3003418B1 (fr) 2013-03-15 2013-03-15 Mecanisme d'anticollision pour dispositif nfc

Country Status (2)

Country Link
US (2) US9425862B2 (fr)
FR (1) FR3003418B1 (fr)

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2833785B1 (fr) * 2001-12-18 2005-06-24 Inside Technologies Lecteur de circuit integre sans contact comprenant un mode de veille active a faible consommation electrique
JP2004215225A (ja) * 2002-12-17 2004-07-29 Sony Corp 通信システムおよび通信方法、並びにデータ処理装置
US7593745B2 (en) * 2005-01-05 2009-09-22 Faraday Technology Corp. Method for operating wireless local area network cards in a power-saving mode
JP2007148670A (ja) * 2005-11-25 2007-06-14 Matsushita Electric Ind Co Ltd 携帯端末装置
JP4787945B2 (ja) * 2006-07-14 2011-10-05 ソニー・エリクソン・モバイルコミュニケーションズ株式会社 非接触通信回路及び携帯端末
EP2339501A1 (fr) * 2009-12-21 2011-06-29 Nxp B.V. Dispositifs de communication à champ proche
EP2390817A1 (fr) * 2010-05-27 2011-11-30 Gemalto SA Procédé de gestion de la communication avec un controlleur NFC
US9042814B2 (en) * 2011-06-27 2015-05-26 Broadcom Corporation Measurement and reporting of received signal strength in NFC-enabled devices
TWI508477B (zh) * 2012-09-10 2015-11-11 Mstar Semiconductor Inc 模式切換模組以及模式切換方法

Also Published As

Publication number Publication date
FR3003418A1 (fr) 2014-09-19
US20160329932A1 (en) 2016-11-10
US9634725B2 (en) 2017-04-25
US20140273836A1 (en) 2014-09-18
US9425862B2 (en) 2016-08-23

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