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:
May. 26, 1998
Filed:
Apr. 19, 1996
Philip J Koopman, Jr, Hebron, CT (US);
UT Automotive Dearborn, Inc., Dearborn, MI (US);
Abstract
The present invention teaches a method of generating a secret identification number from a random digital data stream. The method comprises the step of initially selecting a first and a second group of bytes from the random digital data stream, wherein the first and second groups of bytes have a first and second numerical value. Subsequently, a first maximal length LFSR feedback term is looked up from a list in response to said first numerical value, while a second maximal length LFSR feedback term is looked up from the list in response to said second numerical value. The method additionally comprises the step of generating a cyclic redundancy code feedback term in response to executing a cyclic redundancy code check on a third group of bytes selected from the random digital data stream. Moreover, the method comprises the step of forming the secret identification number from the first and second maximal length LFSR feedback terms, the cyclic redundancy code feedback term, and a fourth group of bytes from the random digital data stream.