DE60042674D1 - Kontaktose IC Karte zum Verhindern falscher Datenrückgewinnung bei der Demodulation einer amplitudenmodulierten Trägerwelle - Google Patents

Kontaktose IC Karte zum Verhindern falscher Datenrückgewinnung bei der Demodulation einer amplitudenmodulierten Trägerwelle

Info

Publication number
DE60042674D1
DE60042674D1 DE60042674T DE60042674T DE60042674D1 DE 60042674 D1 DE60042674 D1 DE 60042674D1 DE 60042674 T DE60042674 T DE 60042674T DE 60042674 T DE60042674 T DE 60042674T DE 60042674 D1 DE60042674 D1 DE 60042674D1
Authority
DE
Germany
Prior art keywords
kontaktose
demodulation
card
carrier wave
data recovery
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 - Lifetime
Application number
DE60042674T
Other languages
English (en)
Inventor
Joji Nakane
Tatsumi Sumi
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.)
Panasonic Corp
Original Assignee
Panasonic Corp
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 Panasonic Corp filed Critical Panasonic Corp
Application granted granted Critical
Publication of DE60042674D1 publication Critical patent/DE60042674D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (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)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Credit Cards Or The Like (AREA)
DE60042674T 1999-09-22 2000-09-20 Kontaktose IC Karte zum Verhindern falscher Datenrückgewinnung bei der Demodulation einer amplitudenmodulierten Trägerwelle Expired - Lifetime DE60042674D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP26863299A JP3931500B2 (ja) 1999-09-22 1999-09-22 非接触ｉｃカードおよびそのデータ処理方法

Publications (1)

Publication Number Publication Date
DE60042674D1 true DE60042674D1 (de) 2009-09-17

Family

ID=17461254

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60042674T Expired - Lifetime DE60042674D1 (de) 1999-09-22 2000-09-20 Kontaktose IC Karte zum Verhindern falscher Datenrückgewinnung bei der Demodulation einer amplitudenmodulierten Trägerwelle

Country Status (8)

Country Link
US (1) US6907088B1 (de)
EP (1) EP1087333B1 (de)
JP (1) JP3931500B2 (de)
KR (1) KR20010050578A (de)
CN (1) CN100525135C (de)
DE (1) DE60042674D1 (de)
HK (1) HK1036138A1 (de)
TW (1) TW496048B (de)

Families Citing this family (23)

* 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
JP2003296683A (ja) * 2002-04-04 2003-10-17 Matsushita Electric Ind Co Ltd 非接触ｉｃカード
JP2005142889A (ja) * 2003-11-07 2005-06-02 Matsushita Electric Ind Co Ltd データキャリアの通信方法
CN1988523B (zh) * 2005-12-21 2011-08-17 上海华虹集成电路有限责任公司 一种幅度调制信号解调方法及其电路
US20080252367A1 (en) * 2007-04-10 2008-10-16 Micrel, Inc. Demodulator with Multiple Operating Modes for Amplitude Shift Keyed Signals
KR100866602B1 (ko) * 2007-05-22 2008-11-03 삼성전자주식회사 Ａｓｋ ｒｆ 신호 디코딩 장치 및 그 방법
DE102007040854A1 (de) * 2007-08-29 2009-03-12 Texas Instruments Deutschland Gmbh Transponderdemodulator für einen niedrigen Antennenbegrenzerschwellwert
US7971794B2 (en) * 2008-02-07 2011-07-05 Infineon Technologies Ag Actively regulated modulation index for contactless IC devices
KR101543646B1 (ko) * 2009-03-13 2015-08-12 삼성전자주식회사 Ｔｙｐｅ－ａ 복조 장치 및 이를 구비한 집적회로 카드
US8478332B2 (en) 2009-07-31 2013-07-02 Stmicroelectronics, S.R.L. Receiver for signal communication system with disturbance rejection circuit
EP2282406B1 (de) * 2009-07-31 2016-04-20 STMicroelectronics Srl Signalempfänger mit Störungsunterdrückung
JP5519367B2 (ja) * 2010-03-29 2014-06-11 パナソニック株式会社 受電装置及び電力伝送システム
WO2011136415A1 (ko) * 2010-04-30 2011-11-03 주식회사 에세텔 저전력 ａｓｋ 복조기
CN103872989B (zh) * 2012-12-17 2018-02-13 上海华虹集成电路有限责任公司 幅度调制信号解调电路
JP5938142B1 (ja) * 2014-09-22 2016-06-22 株式会社コスモネット データキャリアおよびデータキャリアシステム
CN105897638A (zh) * 2014-12-22 2016-08-24 飞思卡尔半导体公司 反向散射调制数据的数字解码
CN104573794B (zh) * 2014-12-23 2017-07-28 宁波远志立方能源科技有限公司 一种用于无源射频卡的频率调制返回电路
WO2016161464A1 (en) * 2015-04-03 2016-10-06 Smith James A Communication system using schumann resonance frequencies
CN105550740B (zh) * 2015-12-24 2018-09-25 北京奇虎科技有限公司 非接触式ic卡及其运作方法、读卡器及其读卡方法
US10447350B2 (en) 2017-01-11 2019-10-15 Mediatek Singapore Pte. Ltd. High-speed circuits for active load modulation and related methods
US10491437B2 (en) 2017-01-11 2019-11-26 Mediatek Singapore Pte. Ltd. Circuits for amplitude demodulation and related methods
US10374848B2 (en) * 2017-01-11 2019-08-06 Mediatek Singapore Pte. Ltd. Amplitude demodulators and related methods
CN108521386B (zh) * 2018-03-28 2021-01-15 京信通信***（中国）有限公司 载波信号识别电路、方法及通信***

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3628059A (en) * 1970-06-01 1971-12-14 Fairchild Camera Instr Co High voltage functional comparator
JP2549192B2 (ja) * 1990-09-19 1996-10-30 三菱電機株式会社 非接触ｉｃカード及びその使用方法
DE4243108A1 (de) * 1992-12-18 1994-06-23 Eurosil Electronic Gmbh IC-Karte
JP3565966B2 (ja) * 1995-12-20 2004-09-15 株式会社ルネサステクノロジ 通信装置
JPH1013312A (ja) 1996-06-20 1998-01-16 Sony Corp データ処理装置および方法、並びに、送受信装置および方法
FR2751148B1 (fr) 1996-07-12 1998-09-18 Inside Technologies Demodulateur d'un signal alternatif module en amplitude recu dans une bobine par induction electromagnetique
US5949823A (en) * 1996-09-13 1999-09-07 Hitachi, Ltd. Data communication system and radio IC card system
US5812942A (en) * 1996-09-24 1998-09-22 Motorola, Inc. Balanced differential radio receiver and method of operation
US5930304A (en) * 1997-03-20 1999-07-27 Motorola, Inc. Wireless powered communication device with adaptive data detection and method
WO1999038114A1 (en) 1998-01-23 1999-07-29 Motorola Inc. Portable data device and method of switching between a power and data mode of operation
JP2002150250A (ja) * 2000-11-16 2002-05-24 Matsushita Electric Ind Co Ltd 非接触ｉｃカード用ｉｃチップ

Also Published As

Publication number Publication date
KR20010050578A (ko) 2001-06-15
EP1087333A2 (de) 2001-03-28
JP2001092938A (ja) 2001-04-06
CN1289188A (zh) 2001-03-28
CN100525135C (zh) 2009-08-05
EP1087333B1 (de) 2009-08-05
TW496048B (en) 2002-07-21
JP3931500B2 (ja) 2007-06-13
EP1087333A3 (de) 2002-09-04
US6907088B1 (en) 2005-06-14
HK1036138A1 (en) 2001-12-21

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