Appeal No. 95-0692
Application 07/755,237
Page 4 of the answer asserts that Boudreau did not
specifically disclose the requesting source attempting to
reserve a bus. The examiner appears to find this feature
obvious alone in light of Boudreau’s priority resolver logic
circuits and timing generation circuits 21 in Fig. 1 and
discussed beginning in the middle of column 5. However, not
only does this reasoning of the examiner appear to be based
upon prohibited hindsight, it also fails simply because the
corresponding priority resolver logic circuits of Boudreau do
not teach or suggest such a reservation or attempt to reserve
in Boudreau. On the other hand, Eikill’s ability to transfer
control of its working data bus prior to its use by next
devices looks similar to an attempt to reserve a bus when a
currently controlling device reaches the final cycle of its
operation, that is, its transmission of working data, this
device activates the grant token to indicate to all the other
connected devices that the currently controlling device is on
its final cycle of operation, thus freeing the interface for
the following cycle. Eikill, col. 4, lines 12 to 14 and the
discussion beginning at col. 6, line 11.
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Last modified: November 3, 2007