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:
Jul. 17, 2001
Filed:
Oct. 24, 1997
Kabushiki Kaisha Tokai-Rika-Denki-Seisakusho, Aichi-ken, JP;
Abstract
A memory (,) of a transmitter (,) of a transceiver (,) for a vehicle has four writing error check areas in which “Low” is written at the beginning of a writing process and “Hi” is written at the end of the writing process. As a result, when the writing error check area is read in a data reading process, it is possible to confirm whether writing has been finished correctly. Further, there are provided four rolling code data storing areas in the memory (,). The area which is written into is changed each time a rolling code is incremented. When transmission data is read, if data within a writing error check area is “Low”, data is read from the previous rolling code area, and on the basis of the read data, transmission data is generated.