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:
Aug. 30, 1983
Filed:
Aug. 05, 1981
George W Cox, Portland, OR (US);
Justin R Rattner, Aloha, OR (US);
Intel Corporation, Santa Clara, CA (US);
Abstract
A communication mechanism for use in a multi-processing system wherein several processors share a common memory. Each processor has associated with it a local communication segment, stored in memory. The local communication segment is for processor-specific communication. Another segment, the global communication segment, is common to all processors, and is for system-wide communication. Each communication segment has a field containing control flags. The flags are set by one processor and later inspected by the same or another processor. The inspecting processor is instructed to perform a number of functions specified by the state of the control flags. A count field and a lock field are provided in all communication segments to interlock access to the communication mechanism. A status field is provided in the local communication segments. Processors take the state of the status field into consideration when interpreting the control fla