Appeal No. 1999-0264
Application No. 08/573,582
display device including a counter displays a data write
inhibition error when commanded by the microprocessor
(Specification, page 46, lines 15-22). When a data write
command and a data write inhibition are both provided by the
higher ranking device, data is written into the predetermined
sector, and then the predetermined sector is set to data write
inhibition.
Claim 1 is reproduced as follows:
1. A disk storage device for recording and reproducing data
to and from a storage medium according to a command given by a
higher rank device, comprising:
data transfer control means for transferring data from
said higher rank device to said storage medium and
transferring data from said storage medium to said higher rank
device;
identification means having identification information
present in the disk storage device for determining whether
data is permitted or inhibited to write into a predetermined
recording area of said storage medium;
data transfer command means responsive to a data write
command together with data write inhibition from the higher
rank device for transferring data from the higher rank device
to the storage medium, the data being recorded on the storage
medium, and identification information indicating the data
write inhibition being set in a separate memory in the disk
storage device from the storage medium for data management;
wherein said data transfer command means includes a
microprocessor in the disk storage device, said microprocessor
collates a state of said data write command with said
3
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