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:
Jun. 15, 1993
Filed:
Jun. 27, 1991
Hideki Yoshizawa, Tokyo, JP;
Hideki Kato, Tokyo, JP;
Hiroki Iciki, Tokyo, JP;
Daiki Masumoto, Yokohama, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A parallel data processing apparatus including a plurality of processors, a pair of signal paths are provided for each processor, one signal path of each pair being used for supplying a predetermined signal to the processor, and the second signal path being used for returning the signal from the processor to a predetermined position common to all of the processors. Each of the above signal paths include a variable delay unit. The apparatus further includes a delay measuring unit for measuring the time elapsing while the signal is propagated from the above predetermined position to a corresponding processor and then returned from the processor to the above predetermined position through each pair of signal paths. Further the apparatus includes a delay adjusting unit for adjusting the delays caused by the variable delay units in all of the signal paths. The delay adjustment are based on the results of a measurement by the delay measuring unit, so that the time elapsing while the signal is propagated from the predetermined position to the plurality of processors, through the respective signal paths for supplying the signal to the processors, are equal.