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. 21, 2002
Filed:
Jan. 06, 1999
Albert M. Scalise, San Jose, CA (US);
Jano D. Banks, Cupertino, CA (US);
DVDO, Inc., Sunnyvale, CA (US);
Abstract
A data bus arbitration system is disclosed including a bus status monitor which is coupled to a data bus and generates a bus status signal for use by an arbiter. The arbiter is coupled to a number of requesters, each of which belongs to a distinct class of requesters. The arbiter arbitrates between multiple requests using heuristics dependent upon the classes of the requesters. The nature of one class of requestors is that the requestors have real time requirements which must be met in order to maintain data integrity within the system. The nature of a second class of requestors is such that the requestors have semi-real time requirements which must be met in order to maintain data integrity within the system. The nature of the system is such that the available bandwidth must be utilized very efficiently in order to maintain data integrity within the system. The arbiter system disclosed grants access to the requesters using the heuristics disclosed while maintaining an efficiency of at least 80% of the total bandwidth for all requestors.