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. 05, 1996
Filed:
Nov. 01, 1993
Ichiro Kohzono, Tokyo, JP;
Tsuyoshi Katayose, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
A data transfer controller for transferring data between a memory and a peripheral unit enhances the efficiency of the DMA transfer by performing data transfer a predetermined number of times for each transfer request from the peripheral unit. The data transfer controller comprises a first register for storing address information for accessing a source area storing data to be transferred, a second register for storing first information relative to a number of data units ready to be transferred, and a third register for storing second information relative to a number of times by which a data transfer is performed in response to each transfer request from the peripheral unit. A data transfer from the source area to a destination area is performed a number of times designated by the second information in response to each transfer request. A transfer completion signal is generated when the number of data units transferred reaches the number designated by the first information.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile