Appeal No. 2000-0972
Application No. 08/679,848
transmissions from the communications service that have
priority over the mobile unit.
Claim 1 is illustrative of the claimed invention, and it
reads as follows:
1. A communication system for permitting the
communications of a mobile unit in proximity to a
communications service having priority over the
communications of the mobile unit, said communication
system comprising:
a priority service unit for providing
communications services including a receiver for
receiving signals in a frequency band and a
transmitter collocated with the priority service
unit receiver for transmitting signals in a
frequency band;
a mobile communications unit including a
transmitter for transmitting in the frequency band
in which said priority service unit receives
signals;
an interference zone surrounding said priority
receiver such that the transmission by said mobile
unit in said interference zone interferes with the
operation of said priority service unit;
warning signal means connected to said priority
service unit for transmitting a warning signal from
the priority service unit transmitter at a frequency
band different than the frequency band of the
signals received by the priority service unit;
warning signal receiver means connected to said
mobile communications unit for receiving said
warning signal;
2
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