VENICLE ANTI-THEFT DEVICE Russian patent published in 2009 - IPC B60R25/04 

FIELD: transport.

SUBSTANCE: device processes complex phase-manipulated signals and comprises transmitter mounted on control post, receiver, actuator and passive transponder mounted on vehicle. Transmitter comprises master generator, modulating code generator, phase manipulator, power amplifier, transceiver antenna, duplexer, HF amplifier, heterodyne, two intermediate frequency amplifiers, three multiplexers, bandpass filter, phase detector, computer, two LF filters, two extremal regulators, two controlled lad units, range indicator, angle indicator, two frequency doublers, two frequency halvers, two narrow-band filters, phase metre, receiving antenna and two HF amplifiers. Receiver comprises antenna, HF amplifier, two spectrum width meters, frequency doubler, comparator, two threshold units, key, frequency halver, narrow-band filter, phase detector, unipolar gate, accumulator, heterodyne, mixer and intermediate frequency amplifier. Actuator comprises storage battery, ignition switch, ignition coil, two relays, key, control switch, threshold unit, four indicator lamps, horn, thyristor and time lag unit. Transponder comprises piezo crystal, strip antenna, system of electrodes, two buses and reflectors.

EFFECT: expanded performances, remote location of stolen vehicle.

5 dwg