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RE38,925 | Automatic weather monitoring and adaptive transmitting system | |
5,862,454 | Automated radio check system and method |
6,181,260 | Automatic weather monitoring and adaptive transmitting system |
Some references from the patents:
5,862,454:
"Claim 1. An automated system for providing radio checks to radio
operators, the system comprising: a transceiver; a controller for recording
broadcasts received by the transceiver from radio operators in response to
receiving a predetermined activation protocol from the radio operator, and then
playing back the recording and rebroadcasting the broadcasts via the
transceiver."
6,181,260:
"Claim 6. A method as described in claim 1, wherein the step of
monitoring the radio frequency for the predetermined protocol comprises:
applying a voice recognition algorithm to the transmission on the radio
frequency; and broadcasting the weather advisory if a selected phrase was
detected."