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:
Apr. 30, 1996
Filed:
Aug. 24, 1993
Masayuki Katori, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A multiprocessor system containing a networking apparatus and a plurality of processors for transferring data through the networking apparatus from one to another of the plurality of processors. At least one receiving-side processor transmits a transfer allowance signal to the networking apparatus when the processor is ready to receive data, and transmits an on-line/off-line signal to the networking apparatus, where the on-line/off-line signal indicates whether the second processor is in an on-line state or off-line state. The networking apparatus includes a data transfer control unit, provided on each route for transferring data, for receiving data transferred from one of transmitting-side processors, temporarily storing the data, and transferring the data to one of the receiving-side processor when the data transfer control unit receives the transfer allowance signal from the second processor; and an off-line state detecting unit for outputting a data discharge control signal to the data transfer control unit when the on-line/off-line signal indicates that the second processor is in the off-line state. The data transfer control unit further contains a data discharge unit for discharging the data temporarily stored in the data transfer control unit in response to the data discharge control signal, regardless of the transfer allowance signal.