Invention Grant
- Patent Title: Disk drive and information processing system having the same
- Patent Title (中): 磁盘驱动器和信息处理系统具有相同的功能
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Application No.: US12060038Application Date: 2008-03-31
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Publication No.: US07957235B2Publication Date: 2011-06-07
- Inventor: Tatsuya Murata
- Applicant: Tatsuya Murata
- Applicant Address: JP Tama-shi, Tokyo
- Assignee: TEAC Corporation
- Current Assignee: TEAC Corporation
- Current Assignee Address: JP Tama-shi, Tokyo
- Agency: Seed IP Law Group PLLC
- Priority: JP2007-244735 20070921
- Main IPC: G11B20/10
- IPC: G11B20/10
Abstract:
A disk drive controls the rotational speed of a disk to an appropriate value. A system controller of the drive stores data read from a disk and read-ahead data into buffer memory. A time interval ti at which the buffer memory becomes full is measured, and the time interval ti is compared with a predetermined lower limit value t1 and a predetermined upper limit value t2. When a relationship of ti>t2 stands, rotational speed is increased. When a relationship of ti
Public/Granted literature
- US20090080302A1 DISK DRIVE AND INFORMATION PROCESSING SYSTEM HAVING THE SAME Public/Granted day:2009-03-26
Information query
