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. 05, 1990
Filed:
Dec. 16, 1987
Kenichi Kageura, Fujisawa, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A data transfer speed control apparatus for effecting data transfer between semiconductor storage devices and CPU channel devices having maximum transfer speeds different from each other has connection line setting sections indicating the maximum transfer speeds of the semiconductor storage devices and the CPU channel devices. When data transfer between one of the semiconductor storage devices and one of the channel devices is to be made, a transfer speed determining section determines an actual speed of data transfer between the one semiconductor storage device and the one channel device on the basis of the indicated maximum transfer speeds of the one semiconductor storage device and the one channel device to be that one of both the maximum transfer speeds which is lower. The transfer speed of the semiconductor storage device and the channel device is set to the transfer speed determined by the transfer speed determining section.