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. 04, 2003
Filed:
Sep. 18, 2000
Ikuo Uchihori, Fuchu, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
A pre-fetch prediction table is provided for storing history of readout access given from a host device. A controller in a disk control device registers entry information including a set of an area address a indicating the access destination of the previous access and concerned prediction address b, having an area address b indicating the access destination of the readout access given from the host device as prediction address b, into a corresponding entry of the pre-fetch prediction table. Thereafter, when a readout access designating the area address a in agreement with the area address a in the concerned entry information is given from the host device, the controller pre-fetches from a HDD to a disk cache according to the prediction address b in the concerned entry information.