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:
Dec. 28, 1993
Filed:
Sep. 03, 1992
Masaaki Iwasaki, Hachioji, JP;
Yoshifumi Takamoto, Hachioji, JP;
Shoji Yamamoto, Chigasaki, JP;
Takashi Sumiyoshi, Yokohama, JP;
Kazuo Masai, Yokohama, JP;
Toshiharu Shinozaki, Yokohama, JP;
Tetsuo Saito, Zama, JP;
Hitachi, Ltd., Tokyo, JP;
Hitachi Microcomputer Engineering, Ltd., Tokyo, JP;
Abstract
Task execution control for a multiprocessor wherein at a time point when a post issue task ends the use of a shared resource, the shared resource is released, another task which is running on another processor is allowed to lock the shared resource, and thereafter the task is made ready. After that, the post procedure is initiated, and thereafter through the high-speed dispatch procedure, the processor is granted first to a task which has failed to lock the shared resource, and the task is prompted to retry to lock the shared resource.