Telecommunications – Transmitter and receiver at same station – With transmitter-receiver switching or interaction prevention
Patent
1983-07-18
1985-06-18
Bookbinder, Marc E.
Telecommunications
Transmitter and receiver at same station
With transmitter-receiver switching or interaction prevention
455 88, 455 89, 455351, H04B 146
Patent
active
045244618
ABSTRACT:
A system is disclosed which includes a radio transceiver and a radio broadcast-band receiver housed in a package that is supported by a helmet of the type worn by mobile users such as motorcycle, bicycle, moped and skateboard riders and the like; or by non-mobile users such as policeman, fireman, construction workers and the like. In the absence of signals to or from the transceiver the user listens to radio broadcasts. Voice actuated circuitry disables the radio receiver and enables the transceiver transmitter for message transmission by the user to a remote station against a background of silence, or against a background of the user's voice. Other circuitry is responsive to a message from a remote station received by the transceiver receiver for disabling the radio receiver so that message is heard by the user against a background of silence. The arrangement is such that the circuitry automatically detects the presence of transceiver signals and responds by: (1) disabling just the radio receiver; or (2) by disabling the radio receiver, disabling the transceiver receiver and enabling the transceiver transmitter for predetermined intervals.
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"CB Switcher for Music Between Calls"-Sante, Radio Electronics, Dec. 1977, pp. 40, 41.
Grossman Walter B.
Kostanty Raymond G.
Sciabbarrasi Michael
American Transceiver Corp.
Bookbinder Marc E.
Cuoco Anthony F.
LandOfFree
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