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. 14, 1996
Filed:
Jul. 22, 1992
Applicant:
Inventors:
Seiji Kamada, Hitachi, JP;
Kenji Kawakita, Yokohama, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
355728 ; 3642328 ; 364240 ;
Abstract
Information of a plurality of operation modes is stored in memory. Information of temporary protocols and true protocols is associated with event numbers and processing state numbers, then stored in a status transition table circuit. When an event number and a processing state number are set in an input register, a CPU selects a temporary protocol according to the event number and processing state number. Then, the CPU retrieves an operation mode associated with the temporary protocol from memory, selects a true protocol according to the retrieved operation mode, then executes information processing according to the true protocol.