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. 22, 2008
Filed:
Oct. 05, 2007
Gordon Taylor Davis, Chapel Hill, NC (US);
Andreas Guenther Herkersdorf, Langnau a. Albis, CH;
Clark Debs Jeffries, Durham, NC (US);
Mark Anthony Rinaldi, Durham, NC (US);
Gordon Taylor Davis, Chapel Hill, NC (US);
Andreas Guenther Herkersdorf, Langnau a. Albis, CH;
Clark Debs Jeffries, Durham, NC (US);
Mark Anthony Rinaldi, Durham, NC (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A structure and technique for preventing collisions using a hash table in conjunction with a CAM to identify and prevent collision of binary keys. A portion of the hash value of a binary key, which does not collide with a portion of the hash value of any other reference binary key, is used as an entry in the hash table. If two or more binary keys have identical values of the portions of the hash values, each of these binary keys are stored in their entirety, in the CAM. The key in the CAM provides a pointer to a data structure where the action associated with that binary key is stored. If the binary key is not found in the CAM, the binary key is hashed, and a specific entry in the hash table is selected using a portion of this hash value.