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. 06, 1988
Filed:
Oct. 09, 1986
Frank C Bomba, Andover, MA (US);
Stephen R Jenkins, Acton, MA (US);
Digital Equipment Corporation, Maynard, MA (US);
Abstract
A process for directing an interrupt request from an interrupting device to a selected number of processing devices by a bus. The interrupting device asserts one or more data lines during an interrupt command, each asserted data line corresponding to a selected processing device to which the interrupt command is directed. During an identify transaction, the interrupting device monitors which data line is asserted by a processing device to determine whether the asserted data line corresponds to a processing device selected by a destination mask stored in the interrupting device. Subsequently, one or more data lines are asserted by the interrupting device corresponding to a particular interrupt routine. The interrupting device itself selects particular processing devices, eliminating the need for a central interrupt arbiter. The process allows the interrupting device to seek interrupt servicing from any number of other devices, and to accept service from the first device which is available.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile