G - Physics
01
S
343/49
G01S 13/04 (2006.01) G01S 1/68 (2006.01) G01S 13/50 (2006.01) H04B 1/16 (2006.01) H04B 1/04 (2006.01)
Patent
CA 1249872
ABSTRACT IMPROVEMENTS IN OR RELATING TO TRANSMITTERS A transmitter for target tracking, the transmitter compries a transmit mode and a standby mode, a movement sensor for detecting movement of a target to be tracked, and a trigger circuit, responsive to the movement sensor, for selecting the transmit mode or standby mode for the transmitter, In a preferred embodiment a pulse generator for generating standby confidence pulses and the transmitter is arranged such that a standby confidence pulse is transmitted periodically when the transmitter is selected to operate in the standby mode for indicating to a tracking receiver that the transmitter is operational.
502039
Bae Systems (defence Systems) Limited
Borden Ladner Gervais Llp
Plessey Overseas Limited
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