Appeal No. 2000-1187 Page 6
Application No. 08/723,174
We find that Cohen teaches a computer system having a
Peripheral Component Interconnect (PCI) bus where add-in boards
are provided with a universal interface module that includes
programmable PCI configuration registers (col. 2, lines 32-37).
Cohen further specifies that the PCI add-in board is mounted in
an expansion slot under the cover of the PCI computer system
(col. 4, lines 10-15). Cohen further teaches that the module is
a PCI bus interface chip placed on the add-in board which
interconnects different types of boards (or devices) to the PCI
bus by providing the corresponding configuration logic to be used
for identifying and selecting the device. We find that, contrary
to the claimed logic gate connected between the bridge and the
slot, Cohen’s add-in board includes the data transfer logic for
selecting the target device and is mounted in a slot which is
directly connected to the PCI bus.
In view of the analysis above, we find that the examiner has
failed to meet the burden of providing a prima facie case of
anticipation. We find no teachings in Cohen related to “a bus
bridge having a slot for attaching a device” and “a logic gate
connected between said bridge and said slot.” Additionally, we
disagree with the examiner that alternative embodiments or
modifications suggested in the appellants’ specification can
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