Appeal No. 95-3913
Application 07/910,219
1 requires a time division switching system coupled separately to
each of said terminals, for switching communication paths among
the terminals, and also requires a press talk trunk coupled to
receive press-talk signals from the terminals. Appellants
further argue Coviello fails to disclose a central controller
means responsive to a notification signal from a press-talk trunk
for controlling the switching system to send voice signals from
one terminal to all other terminals as required by claim 1.
In the supplemental answer, the Examiner responds to these
arguments by pointing out that the station circuits SC1 through
SCN receive a press-talk signal from one of the terminals and
subsequently send notification to the central switching and
control unit to perform the appropriate voice connections to the
other terminals. The Examiner further points out that Coviello
discloses in Figure 1 a controller means 1010 which switches
voice connections amongst the terminals in response to press-talk
signals which are sent form the station circuits SC1-SCN.
After a closer reading of Coviello, we find that Coviello
teaches a switching system, a press-talk trunk and a central
controller means as recited in Appellants' claim 1. In
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Last modified: November 3, 2007