Source: http://www.google.com/patents/US6473028?dq=U.S.+patent+number+7,325,728&ei=Y93TTteOAe702wW6uqi1BQ
Timestamp: 2015-05-26 10:23:02
Document Index: 588100401

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']

Patent US6473028 - Detection of the distance between an electromagnetic transponder and a terminal - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inAdvanced Patent SearchPatentsA method and apparatus for determining the distance separating an electromagnetic transponder from a terminal generating a magnetic field by a first oscillating circuit, the transponder including a second oscillating circuit, upstream of a rectifying circuit adapted to providing a D.C. voltage. The method...http://www.google.com/patents/US6473028?utm_source=gb-gplus-sharePatent US6473028 - Detection of the distance between an electromagnetic transponder and a terminalAdvanced Patent SearchPublication numberUS6473028 B1Publication typeGrantApplication numberUS 09/543,220Publication dateOct 29, 2002Filing dateApr 5, 2000Priority dateApr 7, 1999Fee statusPaidAlso published asDE60032049D1, DE60032049T2, EP1045325A1, EP1045325B1Publication number09543220, 543220, US 6473028 B1, US 6473028B1, US-B1-6473028, US6473028 B1, US6473028B1InventorsWuidart LucOriginal AssigneeStmicroelectronics S.A.Export CitationBiBTeX, EndNote, RefManPatent Citations (58), Non-Patent Citations (18), Referenced by (73), Classifications (15), Legal Events (5) External Links: USPTO, USPTO Assignment, EspacenetDetection of the distance between an electromagnetic transponder and a terminal
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deviceWO2005073906A1 *Jan 19, 2005Aug 11, 2005Gordon A AndersonMulti-mode transponderWO2014071381A1 *Nov 5, 2013May 8, 2014Qualcomm IncorporatedMethods and apparatus for improving nfc coil tuning based on proximity to a remote nfc device* Cited by examinerClassifications U.S. Classification342/118, 342/127, 342/42International ClassificationG06K7/00, G01S13/74, G06K19/07, G06K19/00, G06K17/00, G08C17/00, B42D15/10, H01Q7/00Cooperative ClassificationG06K19/0723, G06K7/0008European ClassificationG06K19/07T, G06K7/00ELegal EventsDateCodeEventDescriptionMar 26, 2014FPAYFee paymentYear of fee payment: 12Apr 21, 2010FPAYFee paymentYear of fee payment: 8Apr 7, 2006FPAYFee paymentYear of fee payment: 4Feb 11, 2003CCCertificate of correctionJul 14, 2000ASAssignmentOwner name: STMICROELECTRONICS S.A., FRANCEFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:WUIDART, LUC;REEL/FRAME:010922/0643Effective date: 20000427Owner name: STMICROELECTRONICS S.A. 7 AVENUE GALLIENI 94250 GEOwner name: STMICROELECTRONICS S.A. 7 AVENUE GALLIENI 94250 GEFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:WUIDART, LUC;REEL/FRAME:010922/0643Effective date: 20000427RotateOriginal ImageGoogle Home - Sitemap - USPTO Bulk Downloads - Privacy Policy - Terms of Service - About Google Patents - Send FeedbackData provided by IFI CLAIMS Patent Services