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:
Dec. 21, 2004
Filed:
Nov. 28, 2003
Michael Cuylen, Zimdorf, DE;
Siemens Aktiengesellschaft, Munich, DE;
Abstract
A method and associated structures for coding a sequence of data bytes (BY ,BY ), in which two bits (B , B ) of a data byte form a double bit (D -D ). Each double bit is represented by a time slot frame (ZR -ZR ) that has at least four time slots (ZS -ZS ). The time slots can assume an on or off value (Z , Z ). The coding is carried out in a time slot frame such that at least one time slot is preloaded with an off value (Z ) at a position (AF). The time slots that have not been preloaded have, at most, one time slot with an on-value in order to form a logic value (00, 01, 10, 11) of a double bit. The method can be used for identification systems (IS), for mobile data memories (DT) and for reader/writers (SLG). Therein, a higher data rate and/or a greater transmission distance between the reader/writer and the mobile data memory is achieved.