Appeal No. 1997-0402
Application 07/843,685
point prior to the “in-progress” signal being received over
the return telephone call, the personal unit will never alert
for that telephone call. Likewise, if the caller hangs up
while the personal unit is alerting but prior to the called
party having picked up the telephone, the alerting will cease,
as for a conventional telephone call.
Representative independent claim 1 is reproduced as
follows:
1. Portable apparatus for use in completing a
telephone call that is initiated from a calling telephone to a
called individual comprising:
means for receiving an actuation signal in response
to said telephone call placed to said called individual;
means responsive to reception of said actuation
signal for placing a second telephone call over a telephone
channel through a switched telephone network to a
predetermined location;
means for receiving from said location over said
telephone channel an indication that said telephone call from
said calling telephone continues to be in progress; and
means responsive to continued reception of said
indication for supplying an alerting indication from said
portable device.
The Examiner relies on the following references:
Gillig et al. (Gillig) 5,127,042 Jun. 30, 1992
(effectively filed Sep. 23, 1988)
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