DE69903609T2 - Datenträger mit wenigstens zwei demodulatoren zum empfang von ask-signale unterschiedlicher modulationstiefe - Google Patents

Datenträger mit wenigstens zwei demodulatoren zum empfang von ask-signale unterschiedlicher modulationstiefe

Info

Publication number
DE69903609T2
DE69903609T2 DE69903609T DE69903609T DE69903609T2 DE 69903609 T2 DE69903609 T2 DE 69903609T2 DE 69903609 T DE69903609 T DE 69903609T DE 69903609 T DE69903609 T DE 69903609T DE 69903609 T2 DE69903609 T2 DE 69903609T2
Authority
DE
Germany
Prior art keywords
data carrier
different modulation
demodulators
carrier
modulation depth
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
DE69903609T
Other languages
English (en)
Other versions
DE69903609D1 (de
Inventor
Franz Amtmann
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.)
NXP BV
Original Assignee
Koninklijke Philips Electronics NV
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 Koninklijke Philips Electronics NV filed Critical Koninklijke Philips Electronics NV
Application granted granted Critical
Publication of DE69903609D1 publication Critical patent/DE69903609D1/de
Publication of DE69903609T2 publication Critical patent/DE69903609T2/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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0008—Modulated-carrier systems arrangements for allowing a transmitter or receiver to use more than one type of modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/02—Amplitude-modulated carrier systems, e.g. using on-off keying; Single sideband or vestigial sideband modulation
    • H04L27/06—Demodulator circuits; Receiver circuits

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)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Near-Field Transmission Systems (AREA)
DE69903609T 1998-07-13 1999-07-02 Datenträger mit wenigstens zwei demodulatoren zum empfang von ask-signale unterschiedlicher modulationstiefe Expired - Lifetime DE69903609T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP98890203 1998-07-13
PCT/EP1999/004717 WO2000004686A1 (en) 1998-07-13 1999-07-02 Data carrier with at least two demodulators for receiving ask signals of differing modulation index

Publications (2)

Publication Number Publication Date
DE69903609D1 DE69903609D1 (de) 2002-11-28
DE69903609T2 true DE69903609T2 (de) 2003-06-26

Family

ID=8237181

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69903609T Expired - Lifetime DE69903609T2 (de) 1998-07-13 1999-07-02 Datenträger mit wenigstens zwei demodulatoren zum empfang von ask-signale unterschiedlicher modulationstiefe

Country Status (8)

Country Link
US (1) US6442215B1 (de)
EP (1) EP1034644B1 (de)
JP (1) JP4431279B2 (de)
CN (1) CN1126338C (de)
AT (1) ATE226775T1 (de)
DE (1) DE69903609T2 (de)
ES (1) ES2186387T3 (de)
WO (1) WO2000004686A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008046711A1 (de) * 2008-09-11 2010-03-25 Infineon Technologies Ag Chipkarte mit einstellbarer Demodulationseinheit

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10050878B4 (de) * 2000-10-13 2012-07-12 Atmel Automotive Gmbh Verfahren zur Übertragung von mehreren Informationssymbolen
EP1296276A1 (de) * 2001-09-21 2003-03-26 EM Microelectronic-Marin SA Verfahren zur Steuerung des Empfängers eines Transponders für grosse Entfernungen
FR2834148A1 (fr) * 2002-05-31 2003-06-27 Siemens Vdo Automotive Procede de communication entre un emeteur d'un systeme mains libres et un recepteur correspondant
CN1883227B (zh) * 2003-11-14 2012-07-11 楼氏电子亚洲有限公司 包括rfid电路的电声换能器
KR101563139B1 (ko) 2008-09-19 2015-10-26 가부시키가이샤 한도오따이 에네루기 켄큐쇼 반도체 장치
CN102111108B (zh) * 2009-12-24 2013-02-27 上海华虹集成电路有限责任公司 幅度键控调制信号的解调电路

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5347542A (en) * 1991-06-28 1994-09-13 Motorola, Inc. Demodulation selection for a communication signal
JP2776094B2 (ja) * 1991-10-31 1998-07-16 日本電気株式会社 可変変調通信方法
US5526061A (en) * 1994-03-23 1996-06-11 U.S. Philips Corporation Circuit arrangement for demodulating a video signal
DE19526998B4 (de) * 1994-07-26 2006-02-02 Matsushita Electric Works, Ltd., Kadoma Erkennungssystem für bewegliche Objekte
GB2308948B (en) * 1996-01-06 1999-11-24 Motorola Inc Data Transfer Circuit and Method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008046711A1 (de) * 2008-09-11 2010-03-25 Infineon Technologies Ag Chipkarte mit einstellbarer Demodulationseinheit
US8159289B2 (en) 2008-09-11 2012-04-17 Infineon Technologies Ag Chip card having an adjustable demodulation unit

Also Published As

Publication number Publication date
EP1034644B1 (de) 2002-10-23
ES2186387T3 (es) 2003-05-01
CN1273730A (zh) 2000-11-15
DE69903609D1 (de) 2002-11-28
EP1034644A1 (de) 2000-09-13
US6442215B1 (en) 2002-08-27
WO2000004686A1 (en) 2000-01-27
ATE226775T1 (de) 2002-11-15
CN1126338C (zh) 2003-10-29
JP2002521867A (ja) 2002-07-16
JP4431279B2 (ja) 2010-03-10

Similar Documents

Publication Publication Date Title
DE3853782D1 (de) Vorrichtung und verfahren zur modulierung in quadratur.
DE3784675T2 (de) Schaltung zur rueckgewinnung von traegersignalen.
DE69631406D1 (de) Verriegelungsschaltung zum Empfangen von Signalen mit niedriger Amplitude
EA200001064A1 (ru) Структура кадра и синхронизация частоты для систем с множеством несущих
DE69023366T2 (de) Empfangsvorrichtung zur Reduzierung von Rauschen.
DE69129250T2 (de) Demodulatorschaltung zur Demodulation von PSK-modulierten Signalen
DE3484588D1 (de) Schaltung zur erfassung von pruefeingaben.
DE60042674D1 (de) Kontaktose IC Karte zum Verhindern falscher Datenrückgewinnung bei der Demodulation einer amplitudenmodulierten Trägerwelle
DE3783837D1 (de) Traegerrueckgewinnung von modulierten signalen.
DE69023076T2 (de) Quadratur-Phasendemodulation mit Hilfe einer Trainingsfolge und eines lokalen, von der empfangenen Trägerfrequenz verschobenen Signals.
DE3878144D1 (de) Frequenzdifferenzdetektor mit automatischer verstaerkungsregelung und empfaenger fuer modulierten traeger, der den detektor umfasst.
ATE226775T1 (de) Datenträger mit wenigstens zwei demodulatoren zum empfang von ask-signale unterschiedlicher modulationstiefe
DE3751101D1 (de) Modulator zur Erzeugung von PSK-Signalen mit konstanter Amplitude.
DE59004430D1 (de) Anordnung zur verarbeitung von sensorsignalen.
DE59800072D1 (de) Datenträger und Verfahren zum kontaktlosen Empfang von Daten und Energie
DE3578026D1 (de) Schaltung zur verarbeitung von farbdifferenzsignalen.
DE68905055D1 (de) Binaer-ternaer-umsetzer zur kombination von zwei binaer-signalen.
DE68908038T2 (de) Frequenzabweichungstolerierendes Verfahren und Vorrichtung zur Demodulation von, durch eine Binärsymbolreihe, winkelmodulierten Signalen mit konstanter Umhüllung und kontinuierlicher Phase.
ATE210858T1 (de) System zur übertragung von daten von einem datenträger nach einer station mittels eines oder zum mindest eines anderen hilfsträgersignals
DE69003660D1 (de) Verfahren zur verbesserung von kohle.
DE59003256D1 (de) Anordnung zur verarbeitung von sensorsignalen.
DK157560C (da) Enzymatisk detergentadditiv, detergent indeholdende det enzymatiske detergentadditiv og fremgangsmaade til vask af tekstiler.
DE69022341D1 (de) Detektorschaltung für amplitudenmodulierte Signale.
DE3580539D1 (de) Schaltungsanordnung zum uebertragen von binaeren signalen.
DE69805121D1 (de) Schaltung zur Verarbeitung von pulsbreitenmodulierten Signalen

Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8328 Change in the person/name/address of the agent

Representative=s name: EISENFUEHR, SPEISER & PARTNER, 10178 BERLIN

8327 Change in the person/name/address of the patent owner

Owner name: NXP B.V., EINDHOVEN, NL