FR2752651B1 - Circuit pour realiser une oscillation modulee en amplitude - Google Patents

Circuit pour realiser une oscillation modulee en amplitude

Info

Publication number
FR2752651B1
FR2752651B1 FR9710546A FR9710546A FR2752651B1 FR 2752651 B1 FR2752651 B1 FR 2752651B1 FR 9710546 A FR9710546 A FR 9710546A FR 9710546 A FR9710546 A FR 9710546A FR 2752651 B1 FR2752651 B1 FR 2752651B1
Authority
FR
France
Prior art keywords
realizing
circuit
amplitude modulated
modulated oscillation
oscillation
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
FR9710546A
Other languages
English (en)
Other versions
FR2752651A1 (fr
Inventor
Manfred Glehr
Peter Gold
Stefan Haimerl
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of FR2752651A1 publication Critical patent/FR2752651A1/fr
Application granted granted Critical
Publication of FR2752651B1 publication Critical patent/FR2752651B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
    • B60R25/20—Means to switch the anti-theft system on or off
    • B60R25/24—Means to switch the anti-theft system on or off using electronic identifiers containing a code not memorised by the user
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
    • B60R25/40—Features of the power supply for the anti-theft system, e.g. anti-theft batteries, back-up power supply or means to save battery power
    • B60R25/406—Power supply in the remote key
    • 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
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C1/00—Amplitude modulation
    • H03C1/36—Amplitude modulation by means of semiconductor device having at least three electrodes
    • 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
    • H04L27/04—Modulator circuits; Transmitter circuits
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C2009/00753—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by active electrical keys
    • G07C2009/00769—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by active electrical keys with data transmission performed by wireless means
    • G07C2009/00793—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by active electrical keys with data transmission performed by wireless means by Hertzian waves

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mechanical Engineering (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Signal Processing (AREA)
  • Lock And Its Accessories (AREA)
FR9710546A 1996-08-26 1997-08-21 Circuit pour realiser une oscillation modulee en amplitude Expired - Fee Related FR2752651B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1996134486 DE19634486C2 (de) 1996-08-26 1996-08-26 Schaltungsanordnung zum Erzeugen einer amplitudenmodulierten Schwingung

Publications (2)

Publication Number Publication Date
FR2752651A1 FR2752651A1 (fr) 1998-02-27
FR2752651B1 true FR2752651B1 (fr) 2002-12-20

Family

ID=7803739

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9710546A Expired - Fee Related FR2752651B1 (fr) 1996-08-26 1997-08-21 Circuit pour realiser une oscillation modulee en amplitude

Country Status (2)

Country Link
DE (1) DE19634486C2 (fr)
FR (1) FR2752651B1 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10102863A1 (de) * 2001-01-23 2002-07-25 Philips Corp Intellectual Pty Schaltungsanordnung
FR2820518B1 (fr) 2001-02-02 2003-04-25 Siemens Automotive Sa Procede de controle de l'etat d'un organe de securite
FR2834398B1 (fr) * 2001-12-27 2005-06-03 Siemens Vdo Automotive Procede d'emission d'une requete vers un badge
JP3891421B2 (ja) * 2002-10-16 2007-03-14 ソニー株式会社 電子回路、変調方法、並びに、情報処理装置および方法
DE10258779A1 (de) * 2002-12-16 2004-07-15 Infineon Technologies Ag Verfahren zur kontaktlosen Datenübertragung und Verwendung dieses Verfahrens
FR2860626A1 (fr) * 2003-10-03 2005-04-08 Fidelys Sarl Procede d'interrogation d'etiquettes electroniques, station d'interrogation et etiquettes electroniques
DE102005031186C5 (de) * 2005-07-01 2021-02-18 Huf Hülsbeck & Fürst Gmbh & Co. Kg Intelligente Betätigungsvorrichtung
EP1884900A1 (fr) * 2006-07-31 2008-02-06 Cobra Automotive Technologies S.P.A. Dispositif pour l'activation/désactivation à distance de systèmes de sécurité pour véhicules
FR2923334A1 (fr) * 2007-11-02 2009-05-08 Johnson Controls Tech Co Circuit emetteur-recepteur destine a cooperer avec un transpondeur dans un systeme d'antivol electronique pour vehicule automobile
EP2159531B1 (fr) * 2008-08-25 2020-04-01 RUAG Schweiz AG Procédé de détection d'impact

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2533800B2 (ja) * 1989-06-02 1996-09-11 山武ハネウエル株式会社 マイクロ波応答装置
US5287112A (en) * 1993-04-14 1994-02-15 Texas Instruments Incorporated High speed read/write AVI system
DE19501004C2 (de) * 1994-05-03 1999-09-16 Telefunken Microelectron Verfahren zur verifizierbaren Datenübertragung zwischen einem Transponder und einem Lesegerät
DE4434240C1 (de) * 1994-09-24 1995-11-30 Norbert H L Dr Ing Koster Dynamische Modulationsvorrichtung
GB2301750B (en) * 1995-05-27 2000-02-16 Motorola Inc A data transfer system and a demodulator therefor
GB2306067B (en) * 1995-10-24 2000-02-23 Motorola Inc Modulator circuit and data transfer system
JPH09142257A (ja) * 1995-11-22 1997-06-03 Tokai Rika Co Ltd 送受信システム
JP3693725B2 (ja) * 1995-11-24 2005-09-07 株式会社日本自動車部品総合研究所 トランスポンダを用いた自動応答システム

Also Published As

Publication number Publication date
FR2752651A1 (fr) 1998-02-27
DE19634486A1 (de) 1998-03-12
DE19634486C2 (de) 1999-11-18

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Legal Events

Date Code Title Description
ST Notification of lapse

Effective date: 20100430