H - Electricity – 04 – B
Patent
H - Electricity
04
B
H04B 3/54 (2006.01) B60R 16/02 (2006.01) H04Q 9/00 (2006.01)
Patent
CA 2170380
A telemetry and control system for use in direct current power wiring applications, such as those used in automobiles and other vehicles includes a master transmitter (10) which encodes data as a train of current pulses which modulate the d.c. supply voltage. A slave receiver (14) at another location, connected to the same power source (2) through pre-existing wiring, amplifies the supply voltage modulations, recovers the data waveform, and decodes it to effect an action or display a measurement or status indication. A second transmitter (15) combined with the slave receiver may transmit data similarly for reception by a second receiver (11) combined with the master transmitter, to enable two-way communication therebetween. Applications of the system include an emergency battery booster, an anti-theft battery disconnection device, a distress alert system, activation and reception of data from outboard devices, and remote measurement of fluid levels, temperatures and pressures.
Gowling Lafleur Henderson Llp
National Digital Electronics Inc.
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