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ES2531200T3 - Procedimiento y dispositivo de modulación de carga activa con amortiguación de auto oscilación - Google Patents

Procedimiento y dispositivo de modulación de carga activa con amortiguación de auto oscilación Download PDF

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Publication number
ES2531200T3
ES2531200T3 ES11771252T ES11771252T ES2531200T3 ES 2531200 T3 ES2531200 T3 ES 2531200T3 ES 11771252 T ES11771252 T ES 11771252T ES 11771252 T ES11771252 T ES 11771252T ES 2531200 T3 ES2531200 T3 ES 2531200T3
Authority
ES
Spain
Prior art keywords
antenna
antenna circuit
signal
periodic signal
cks
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.)
Active
Application number
ES11771252T
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English (en)
Inventor
FRéDéRIC BERNARD
Nicolas Cordier
Bruno Charrat
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.)
Inside Secure SA
Original Assignee
Inside Secure SA
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=44211855&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ES2531200(T3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Inside Secure SA filed Critical Inside Secure SA
Application granted granted Critical
Publication of ES2531200T3 publication Critical patent/ES2531200T3/es
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/3816—Mechanical arrangements for accommodating identification devices, e.g. cards or chips; with connectors for programming identification devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
    • H04B5/20—Near-field transmission systems, e.g. inductive or capacitive transmission systems characterised by the transmission technique; characterised by the transmission medium
    • H04B5/24—Inductive coupling
    • H04B5/26—Inductive coupling using coils
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
    • H04B5/40—Near-field transmission systems, e.g. inductive or capacitive transmission systems characterised by components specially adapted for near-field transmission
    • H04B5/45—Transponders
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
    • H04B5/40—Near-field transmission systems, e.g. inductive or capacitive transmission systems characterised by components specially adapted for near-field transmission
    • H04B5/48—Transceivers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • H04L7/04—Speed or phase control by synchronisation signals
    • H04L7/08—Speed or phase control by synchronisation signals the synchronisation signals recurring cyclically

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Near-Field Transmission Systems (AREA)
  • Amplitude Modulation (AREA)

Abstract

Procedimiento de emisión de datos mediante acoplamiento inductivo, que comprende las etapas que consisten en: - aplicar un campo magnético externo alternativo (FLD1) en un circuito de antena inductivo (ACT, AC1) sintonizado en una frecuencia portadora del campo magnético externo; - extraer una señal de antena (AS) del circuito de antena; - extraer de la señal de antena (AS) una primera señal periódica (CKe); - producir una segunda señal periódica (CKs) por medio de un oscilador síncrono (SO, OSC1) que presenta un modo de oscilación síncrona bloqueado en fase en la primera señal periódica (CKe) y un modo de oscilación libre; - poner al oscilador en el modo de oscilación libre; y - aplicar en el circuito de antena una ráfaga de la segunda señal periódica (CKs), caracterizado por que comprende, después de haber aplicado en el circuito de antena una ráfaga de la segunda señal periódica: - una etapa de atenuación (Pd) que consiste en modificar (DCT) la impedancia del circuito de antena para reducir la amplitud de la señal de antena (AS); - una etapa de restablecimiento (Pr) que consiste en dejar de modificar la impedancia del circuito de antena, para restablecer la amplitud de la señal de antena; y - una etapa de resincronización (PSyn) que consiste en poner al oscilador en el modo de oscilación síncrona (Psyn) antes de aplicar una nueva ráfaga de la segunda señal periódica (CKs) en el circuito de antena.
ES11771252T 2010-09-21 2011-09-21 Procedimiento y dispositivo de modulación de carga activa con amortiguación de auto oscilación Active ES2531200T3 (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1003754A FR2965082B1 (fr) 2010-09-21 2010-09-21 Procede et dispositif de modulation de charge active par couplage inductif
PCT/FR2011/052183 WO2012038664A2 (fr) 2010-09-21 2011-09-21 Procede et dispositif de modulation de charge active a amortissement d'auto oscillation

Publications (1)

Publication Number Publication Date
ES2531200T3 true ES2531200T3 (es) 2015-03-11

Family

ID=44211855

Family Applications (2)

Application Number Title Priority Date Filing Date
ES11181125T Active ES2421618T3 (es) 2010-09-21 2011-09-13 Procedimiento y dispositivo de modulación de carga activa por acoplamiento inductivo
ES11771252T Active ES2531200T3 (es) 2010-09-21 2011-09-21 Procedimiento y dispositivo de modulación de carga activa con amortiguación de auto oscilación

Family Applications Before (1)

Application Number Title Priority Date Filing Date
ES11181125T Active ES2421618T3 (es) 2010-09-21 2011-09-13 Procedimiento y dispositivo de modulación de carga activa por acoplamiento inductivo

Country Status (8)

Country Link
US (5) US8838023B2 (es)
EP (2) EP2431925B1 (es)
KR (1) KR101819072B1 (es)
CN (1) CN102411698B (es)
CA (1) CA2752757C (es)
ES (2) ES2421618T3 (es)
FR (1) FR2965082B1 (es)
WO (1) WO2012038664A2 (es)

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Also Published As

Publication number Publication date
CA2752757C (fr) 2019-05-07
EP2431925B1 (fr) 2013-04-17
US9331748B2 (en) 2016-05-03
US20130288599A1 (en) 2013-10-31
WO2012038664A3 (fr) 2012-07-19
EP2431925A1 (fr) 2012-03-21
CN102411698A (zh) 2012-04-11
ES2421618T3 (es) 2013-09-04
FR2965082B1 (fr) 2012-09-28
US20170180008A1 (en) 2017-06-22
US8838023B2 (en) 2014-09-16
US20180227016A1 (en) 2018-08-09
WO2012038664A2 (fr) 2012-03-29
KR20120030985A (ko) 2012-03-29
FR2965082A1 (fr) 2012-03-23
EP2625653B1 (fr) 2014-11-26
EP2625653A2 (fr) 2013-08-14
US9941934B2 (en) 2018-04-10
CA2752757A1 (fr) 2012-03-21
US10305546B2 (en) 2019-05-28
US10560156B2 (en) 2020-02-11
CN102411698B (zh) 2016-08-03
US20160308584A1 (en) 2016-10-20
US20120071089A1 (en) 2012-03-22
KR101819072B1 (ko) 2018-01-16

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