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. 21, 2000
Filed:
Mar. 27, 1998
Atsushi Kanamaru, Sagamihara, JP;
Toshio Kakihara, Fujisawa, JP;
Yuhji Kigami, Yamato, JP;
Takahiro Saitoh, Yokohama, JP;
International Business Machines Corporation, Armonk, NY (US);
Abstract
A disk drive and a method for controlling the disk drive in which an additional read from a medium can be performed as needed while minimizing the command overhead to the minimum. In a disk drive device 10, even if a read command is issued, and all the required data is stored in the cache memory such that the data transfer can be performed without the intervention of a local MPU 16, a HIC 15 performs the data transfer so as to leave the last one block and waits for the intervention of the local MPU 16. The local MPU 16 provides instructions to transfer the last one block when the preparation for the command termination is completed, and if a plurality of blocks of data to be transferred are remaining when the local MPU 16 instructs the HIC 15 to transfer the last one block, the HIC 15 executes all the data transfer without stopping the data transfer before the last one block, completing the command.