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. 29, 1990
Filed:
Nov. 09, 1987
Tsuyoshi Katayose, Tokyo, JP;
Yukio Maehashi, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
A data processor comprises an interrupt processing request controller receiving processing requests from peripheral devices for generating an interrupt request. An execution unit has a first mode of executing the interrupt processing in accordance with a user's program and a second mode of executing the interrupt processing in accordance with a microprogram while maintaining an internal condition concerning execution of a program. The controller operates to selectively inhibit the execution of the interrupt processing in the first mode, but to basically allow the execution of the interrupt processing in the second mode.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile