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:
Feb. 12, 2002
Filed:
Mar. 18, 1999
Tomonobu Takashima, Kawasaki, JP;
Kaoru Chujo, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A multiprocessor control system includes a plurality of processors, a boot control device controlling boot of the plurality of processors, a storage device storing boot data therein, and a shared bus interconnecting the plurality of processors, the boot control device and the storage device. The processors constitute at least one boot processor to which the boot data is to be loaded. The boot control device includes a time slot division unit which produces time slots on the shared bus by multiplexing channels for the processors, and a time sharing control unit which determines a time slot for the boot processor among the time slots produced, and assigns the time slot to the boot processor. The time sharing control unit includes a processor interface part which notifies a time-slot location of the time slot determined, to the boot processor. A bus time-slot setting part notifies the time-slot location to the storage device, allowing reading of the boot data from the storage device and inserting of the boot data into the time slot at the time-slot location among the time slots on the shared bus, so that the boot data is loaded into the boot processor via the shared bus.