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:
Mar. 24, 1992
Filed:
Jun. 12, 1989
Applicant:
Inventors:
Terence M Cole, Reading, GB;
Geoffrey Poskitt, College Town, GB;
Assignee:
International Computers Limited, London, GB;
Primary Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
395200 ; 3642414 ; 3642415 ; 364D / ;
Abstract
A multi-processor data processing system, comprises a plurality of data processing modules. A set of interrupt lines are connected in parallel to all the processing modules. Each processing module has a priority level, and the lowest priority module is selected to act as an interrupt handler, with responsibility for handling all balanced interrupts. Whenever a processing module changes it priority, it clocks to see whether the interrupt handler is still the lowest priority module and, if not, causes the role of interrupt handler to be transferred.