The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 08, 2009
Filed:
Apr. 28, 2004
Dirk Wenzel, Hamburg, DE;
Wolfgang Tobergte, Halstenbek, DE;
Dirk Wenzel, Hamburg, DE;
Wolfgang Tobergte, Halstenbek, DE;
NXP B.V., Eindhoven, NL;
Abstract
To enable a method and a system, having at least one base station and/or one data carrier, for transmitting signals between the base station and a number of mobile data carriers operating in the crypto mode or in the plain mode, wherein [a] the base station emits at least one command signal and/or data signal that is provided with at least one identifying pattern, [b] at least one of the data carriers receives the command signal and/or data signal emitted by the base station that is provided with the identifying pattern, [c] at least one of the data carriers that receive the command signal and/or data signal transmits to the base station a response signal that is a response to the command signal and/or data signal, and [d] the base station receives the response signal transmitted by the data carrier.