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. 30, 1999
Filed:
Oct. 07, 1996
Applicant:
Inventor:
Hideki Koike, Tokyo, JP;
Assignee:
NEC Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F / ; G06F / ; G06F / ; G06F / ;
U.S. Cl.
CPC ...
711112 ; 711-4 ; 711113 ; 711114 ; 711170 ;
Abstract
When sequential records are sequentially written to data blocks each having a fixed length on a disc storage medium, data to be saved are stored in a buffer of a main memory in addition to previously accumulated saved data, and a first data block A and a second data block C which is located apart from the first data block A at a distance of at least one block size, are updated alternately by moving all data, including the data to be saved and the previously accumulated saved data, stored in the buffer, to the data block. This method enables sequential records to be added and written while insuring the integrity of the data without lowering the data transfer efficiency.