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:
Sep. 04, 1984
Filed:
Nov. 12, 1981
Alfred D Jenkins, Cambridge, OH (US);
William E Heaton, Cambridge, OH (US);
NCR Corporation, Dayton, OH (US);
Abstract
An interrupt control unit which couples a plurality of peripheral devices to a central processor includes a counter for outputting signals for monitoring a plurality of encoders each coupled to a number of peripheral devices, each encoder outputting the address of a requesting peripheral device when enabled. A memory unit outputs the address of the highest priority peripheral device for each output signal of the counter and a comparator compares the address of the peripheral device having the highest priority access outputted by the memory unit with the address of the previously interrupting peripheral device to determine priority access to the central processor.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile