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:
Jan. 10, 1989
Filed:
Nov. 04, 1987
Applicant:
Inventors:
Kei Sato, Yokohama, JP;
Noboru Murayama, Machida, JP;
Assignee:
Ricoh Company, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
364200 ; 340724 ; 340727 ;
Abstract
A direct memory access device has an increment counter for indicating an address increment between succeeding transfer blocks of data from a first storage location to a second storage location within a memory device. Each block of data has a lateral width determined by the content of a line byte counter associated with both the source and destination areas of the memory device. After the transfer of each block of data, the address is advanced by an amount corresponding to the content of the increment counter. The direct memory access device is capable of multi-dimensional data transfers; for example, two- and three-dimensional transfers.