Appeal No. 2000-0545
Application 08/638,339
method of merging channel guide information eliminates duplicate channels by allowing
only one channel of the duplicate channels to be displayed. Klosterman, column 10, lines
55-60. Therefore, we find that Klosterman teaches channel number arbitration provided
by a memory for storing a user built channel map (channel grid guide) comprising a
plurality of channel identifiers which the user has determined or assigned to correlate to a
channel number in one of the multiple sources.
We next determine whether Klosterman teaches a mechanism for arbitrating
among multiple audio/video sources having overlapping channel number assignments.
Klosterman states that television channel guide information can be received from
numerous sources, including antenna, cable box and satellite sources. Klosterman,
column 4, lines 6-8. “When multiple sources are used for receiving television channels,
an overlap of channels sometimes occurs.” Klosterman, column 6, lines 39-41.
Television channel guide information received from the multiple sources are merged to
obtain a desired channel grid guide which the user has the ability to delete and activate
channels. Klosterman, column 6, lines 43-46. Therefore, we find that Klosterman
teaches the mechanism for arbitrating among “two or more sources of [audiovisual]
signals having overlapping channel number assignments” as recited in claim 1.
We note that Appellant argues that Klosterman “clearly would fail to be operable
if used in connection with multiple audio/video sources having overlapping channel
number assignments since two audio/video sources would share the same entered, pre-
assigned channel number and no means is provided for discerning exactly which of these
two audio/video source the user desired the program be selected from.” Appeal Brief,
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