Appeal No. 2002-1138
Application No. 09/362,785
BACKGROUND
The disclosed invention is directed to a self-testing cable modem that is located
remote from a cable termination system of a cable network. A signal measurement
circuit is used in determining whether the modem is generating electrical noise signals
onto the network, so that sources of noise on the network may be identified.
Representative claim 1 is reproduced below.
1. A self-testing cable modem located remote from a cable modem
termination system (CMTS) of a cable network for testing the cable network, the
self-testing cable modem comprising:
a cable modem that receives signals over a downstream side of the cable
network from the CMTS and transmits signals over an upstream side of the cable
network to the CMTS; and
a signal measurement circuit responsive to the upstream side of the cable
network.
The examiner relies on the following references:
Sanders et al. (Sanders) 5,893,024 Apr. 6, 1999
(filed Aug. 13, 1996)
Claims 1-3 stand rejected under 35 U.S.C. § 102 as being anticipated by
Sanders.
Claims 4-27 have been allowed.
We refer to the Final Rejection (Paper No. 5) and the Examiner’s Answer (Paper
No. 10) for a statement of the examiner’s position and to the Brief (Paper No. 9) and
the Reply Brief (Paper No. 11) for appellants’ position with respect to the claims which
stand rejected.
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