Appeal No. 1995-3903 Page 13
Application No. 08/062,737
averaged whenever a qualification area fails to be
qualified. Id. at ll. 61-67.
Following a control program in a ROM 104, a
microprocessor 102 executes three principal tasks. Col. 26,
ll. 19-21. The first task 212 is called "Main Time." It
comprises a collection of routines, e.g., spindle motor speed
monitoring, not directly related to head transducer position
or the handling of commands and status words passing through
an SCSI interface controller 110 between the disk file
subsystem and a host computer with which the subsystem
operates. Id. at ll. 28-37.
The second task 214 is a position interrupt service
routine (POS_ISR). WEDGE is an interrupt to the
microprocessor, which initiates POS_ISR. When the down
counter reaches a certain count for each sector, the interrupt
is asserted. Col. 15, ll. 22-27. POS_ISR is thus executed
thirty two times during each disk revolution, corresponding to
the thirty two sectors. The task controls the position of the
transducer heads. Id. at ll. 38-45.
Page: Previous 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Next
Last modified: November 3, 2007