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:
Nov. 09, 1999
Filed:
Sep. 04, 1997
Osamu Ishikawa, Tokyo, JP;
Toshikazu Ito, Tokyo, JP;
Satoshi Yamamoto, Tokyo, JP;
Yoshikazu Endo, Tokyo, JP;
Oki Data Corporation, Tokyo, JP;
Abstract
A data transfer controller transfers data in blocks having a restricted set of permitted sizes. Before transferring each block, the data transfer controller performs a segmented comparison on the current data address, at which the block starts, and a stopping address, at which the entire data transfer will end, and determines the block size from the result of the segmented comparison. In the segmented comparison, the data transfer controller compares a first part of the data address with a first part of the stopping address, then compares a second part of the data address with a second part of the stopping address. The comparison of second parts is made in different ways, depending on the result of the comparison of first parts.