Appeal No. 2001-1571
Application 08/958,844
disk drive. More specifically, the read cache method of the
invention produces an increase in the data transfer rate between
the disk drive and a host computer by effectively using a
transfer data storage region of the disk drive and without the
use of additional hardware relative to conventional techniques.
The following claim further illustrates the invention.
1. A method for improving performance of a read cache of a
disk drive, comprising:
a data transmission process for reading corresponding data
from a disk in response to a data read command of a host
computer, temporarily storing said corresponding data in a
constant unit storage region of a data transmission storage
device, and transmitting said corresponding data to said host
computer;
a first read cache process for reading, from said disk,
first data corresponding in size to said constant unit storage
region and taken from a series of data after said corresponding
data, and storing said first data in said constant unit storage
region; and
a second read cache process for reading, from said disk,
second data corresponding in size to a multiple of said constant
unit storage regions and taken from a series of data after said
first data, and storing said second data in all other constant
unit storage regions of said data transmission storage device.
The Examiner relies on the following references:
Ng 5,623,608 Apr. 22, 1997
Claims 1-9 stand rejected under 35 U.S.C. § 102(e} as being
anticipated by Ng.
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