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. 06, 2018
Filed:
Apr. 10, 2013
Mitsubishi Electric Corporation, Chiyoda-ku, JP;
Hidenori Sato, Tokyo, JP;
Toshio Nakajima, Tokyo, JP;
Mitsubishi Electric Corporation, Chiyoda-ku, JP;
Abstract
A data transfer device performing data transfer at a high speed if a descriptor chain cannot be entirely transferred by a single activation. In a DMA control device, when a transfer activation signal is asserted, a descriptor information control part sequentially reads descriptor information from a descriptor information storage part. When the count of pieces of descriptor information that have been read becomes equal to a transferable frame count, a backward skip control part outputs a backward skip instruction. When the backward skip instruction is outputted, a descriptor information control part skips reading remaining descriptor information.