Source: http://www.google.com/patents/US6547149?dq=5,666,293
Timestamp: 2014-11-25 23:34:05
Document Index: 235871207

Matched Legal Cases: ['Application No. 00', 'Application No. 00', 'Application No. 00', 'Application No. 00', 'Application No. 00', 'Application No. 00', 'Application No. 00', 'Application No. 98', 'Application No. 98', 'Application No. 99', 'Application No. 99', 'Application No. 99', 'Application No. 99', 'Application No. 99', 'Application No. 99', 'Application No. 99', 'Application No. 99', 'Application No. 99']

Patent US6547149 - Electromagnetic transponder operating in very close coupling - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inAdvanced Patent SearchPatentsAn electromagnetic transponder of the type including an oscillating circuit upstream of a rectifier adapted to providing a D.C. supply voltage to an electronic circuit, the electronic circuit including circuitry for transmitting digitally coded information, and the transponder including circuitry for...http://www.google.com/patents/US6547149?utm_source=gb-gplus-sharePatent US6547149 - Electromagnetic transponder operating in very close couplingAdvanced Patent SearchPublication numberUS6547149 B1Publication typeGrantApplication numberUS 09/543,378Publication dateApr 15, 2003Filing dateApr 5, 2000Priority dateApr 7, 1999Fee statusPaidAlso published asDE60040111D1, EP1043680A1, EP1043680B1Publication number09543378, 543378, US 6547149 B1, US 6547149B1, US-B1-6547149, US6547149 B1, US6547149B1InventorsLuc Wuidart, Michel Bardouillet, Jean-Pierre EnguentOriginal AssigneeStmicroelectronics S.A.Export CitationBiBTeX, EndNote, RefManPatent Citations (58), Non-Patent Citations (18), Referenced by (16), Classifications (17), Legal Events (3) External Links: USPTO, USPTO Assignment, EspacenetElectromagnetic transponder operating in very close couplingUS 6547149 B1Abstract An electromagnetic transponder of the type including an oscillating circuit upstream of a rectifier adapted to providing a D.C. supply voltage to an electronic circuit, the electronic circuit including circuitry for transmitting digitally coded information, and the transponder including circuitry for detuning the oscillating circuit with respect to a determined frequency, the circuitry for detuning the oscillating circuit being used when the transponder has to transmit information while it is very close to a read/write terminal.
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having a communication resonant circuit and having means for changing the resonant frequency of this resonant circuit in either senseUS7003048 *Aug 28, 2000Feb 21, 2006Koninklijke Philips Electronics N.V.Communication arrangement comprising powerful integrated amplitude-modulation meansUS7032826 *Feb 20, 2004Apr 25, 2006Koninklijke Philips Electronics N.V.Data carrier having a communication resonant circuit and having means for changing the resonant frequency of this resonant circuit in either senseUS7046121Aug 9, 2001May 16, 2006Stmicroelectronics S.A.Detection of an electric signature of an electromagnetic transponderUS7667548 *Jul 31, 2007Feb 23, 2010Texas Instruments Deutschland GmbhOscillation maintenance circuit for half duplex transponderUS8395485 *Jun 15, 2010Mar 12, 2013Stmicroelectronics (Rousset) SasInductive evaluation of the coupling factor of an electromagnetic transponderUS8450877 *Jan 5, 2010May 28, 2013Access Business Group International LlcCommunication across an inductive link with a dynamic loadUS20090153300 *Oct 16, 2008Jun 18, 2009Texas Instruments Deutschland, GmbhRfid transponder with high downlink data rateUS20090195366 *Oct 16, 2008Aug 6, 2009Texas Instruments Deutschland, GmbhHigh performance rfid transponder with fast downlinkUS20100171369 *Jan 5, 2010Jul 8, 2010Access Business Group International LlcCommunication across an inductive link with a dynamic loadUS20100253667 *Nov 5, 2008Oct 7, 2010Fronius International GmbhMethod for detecting the actuation of a control element of a control front of an inverter and control front for an inverterUS20100321164 *Jun 15, 2010Dec 23, 2010Stmicroelectronics (Rousset) SasInductive evaluation of the coupling factor of an electromagnetic transponderUS20120153739 *Dec 21, 2010Jun 21, 2012Cooper Emily BRange adaptation mechanism for wireless power transferUS20130107762 *Oct 26, 2011May 2, 2013Texas Instruments IncorporatedElectronic device, method and system for half duplex data transmissionUS20130137387 *Nov 21, 2012May 30, 2013Oticon A/SRf transmitter for electrically short antennaEP2311052A1 *Jul 7, 2009Apr 20, 2011Powerbyproxi LimitedA contactless power receiver and method of operation* Cited by examinerClassifications U.S. Classification235/492, 235/385, 235/383International ClassificationG06K7/00, G01S13/75, G01S13/76, G08C17/00, G06K17/00, G01S13/79, H02J17/00, G06K19/07Cooperative ClassificationG06K19/0701, G06K7/0008, G06K19/0723European ClassificationG06K19/07A, G06K7/00E, G06K19/07TLegal EventsDateCodeEventDescriptionSep 28, 2010FPAYFee paymentYear of fee payment: 8Sep 29, 2006FPAYFee paymentYear of fee payment: 4Jul 3, 2000ASAssignmentOwner name: STMICROELECTRONICS S.A., FRANCEFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:WUIDART, LUC;BARDOUILLET, MICHEL;ENGUENT, JEAN-PIERRE;REEL/FRAME:010903/0536;SIGNING DATES FROM 20000427 TO 20000428Owner name: STMICROELECTRONICS S.A. 7, AVENUE GALLIENI 94250 GRotateOriginal ImageGoogle Home - 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