Appeal No. 1999-0264 Application No. 08/573,582 stored on the disk to indicate write permission or inhibition (column 3, line 66 to column 4, line 24). Like Nakajima, Saldanha does not teach a microprocessor as part of the disk storage device, interposed between a host computer and the storage medium. We further agree with the Examiner that Kobayashi teaches a microprocessor that informs a higher rank device of a write inhibition error (column 8, lines 25-62). The microprocessor of Kobayashi determines whether the recording mode specified by the higher rank device is "update write" or "initial write." If initial write is requested and information has previously been recorded in the data field, the microprocessor does not write the data, and informs the higher rank device that the data field has been written to. We disagree with the Examiner that the person having ordinary skill in the art would have been motivated to combine Nakajima, Saldanha, Kobayashi, (Director, and Purvis) to achieve the claimed invention. The Examiner cites column 4, lines 63-68 of Saldanha as motivation for the combination. Here, Saldanha suggests the advantage of "distinguish[ing] between erased and written sectors on standard MO media," a 11Page: Previous 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 NextLast modified: November 3, 2007