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:
Apr. 10, 2001
Filed:
Apr. 14, 1999
David J. Schmidt, Holland, MI (US);
Gentex Corporation, Zeeland, MI (US);
Abstract
A time-independent, event-based system for receiving and discriminating unique codes from multiple transmitters has an event-based detection cycle instead of a time-based detection cycle. The system detects received ID codes from multiple transmitters and compares the received ID codes with registers for ID codes in an array in memory. Counters corresponding to the stored ID codes increment each time there is a match between the received ID code and the stored ID code. After a predetermined total number of increments, the system evaluates the received signals to discriminate between ID codes received from desired transmitters and those from undesired transmitters before resetting the counter. Because the system is event based and not a function of time, it will operate over a wide range of time cycles.