Appeal 2007-1481
Application 09/915,091
FINDINGS OF FACT
The following Findings of Fact (FF) are shown by a preponderance of
the evidence.
The Invention
1. Appellants invented a method (and system) for selecting
frequency bands in wireless communication (Specification 7:1-5).
2. A plurality of frequency bands are passively monitored to
determine interference information for each of the frequency bands
(Specification 7:1-6).
3. Interference information for each narrow band observation is
combined to produce a signal quality indication (Specification 8:3-8).
4. When passive observations are completed, a wide frequency
band is formed from a selected plurality of frequency bands (Specification
7:13-16).
5. The system includes a band selection controller, which
performs the passive monitoring for interference information, and selects a
bandwidth of the available frequency bands (Specification 9:19-10:7, 10:12-
15).
Van De Berg
6. Van De Berg teaches scanning a plurality of frequency bands to
determine whether the bands are interference free (col. 9, ll. 4-11).
7. If a particular carrier frequency position is essentially free of
interference, subsequent positions are scanned, in an effort to identify a
concatenation of carrier frequency positions without interference (col. 9, ll.
13-21).
5
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