CODE ANTITHEFT DEVICE INTENDED MAINLY FOR AUTOMOBILES Russian patent published in 1995 - IPC

FIELD: transport. SUBSTANCE: device has multiposition selector switches, sound alarm, relay, switch, remote-controlled selector switch with windings, resistor, hermetically sealed reed relay, light emitting diode indicator, driving generator, first and second 90-degree phase shifters, first and second scaling multipliers, modulating code generator, phase keyer, transmitter, transmitting antenna, receiving antenna, receiver, wide-band and narrow-band filters, phase detector and indicator. To transmit alarm information by radio channel phase-shift keyed signal is used featuring higher noise stability, and structure and energy security. EFFECT: provision of transmission of alarm information to receiving station by radio channel. 2 dwg