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2 243 912

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IPC

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Application

2003115467/11, 2003-05-16

(24)

Start date

2003-05-16

(22)

Actual filing date

2003-05-16

(45)

Published

2005-01-10

(72)

Inventor

Dikarev V.I.Zhurkovich V.V.Sergeeva V.G.Rybkin L.V.

(73)

Holder

Dikarev Viktor IvanovichZhurkovich Vitalij VladimirovichSergeeva Valentina GeorgievnaRybkin Leonid Vsevolodovich

VEHICLE ANTITHEFT SYSTEM Russian patent published in 2005 - IPC

Abstract RU 2243912 C1

FIELD: transport engineering; security systems.

SUBSTANCE: invention relates to devices aimed at preventing unautorized use of vehicles, such as automobiles. Equipment installed on vehicle contains supply source, current-limiting resistor, remote control selector switch with two antiphase windings, light-emitting diode, sealed contact reed relay, ignition key, relay, master oscillator, phase keyer, transmitter and transmitting antenna. Receiving station mounted on board the flying vehicle has measuring and four radio direction-finding channels including five receiving antennas, search unit, three local oscillators, six mixers, six first intermediate frequency amplifiers, two spectrum width meters, frequency doubler, comparison unit, two threshold units, delay line, three switches, frequency meter, six recorder units, second intermediate frequency amplifier, frequency detector, trigger, four multipliers, four narrow-band filters, four phase detectors and correlator. In process of operation false signals (errors) received by mirror and combination channels are suppressed by correlative processing of channel voltages in measuring channel. Invention provides improved noise immunity, reliable reception of alarm signal on frequency, modulating code and location of hi-jacked vehicle at receiving station.

EFFECT: improved antitheft protection.

5 dwg

Similar patents RU2243912C1

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RU 2 243 912 C1

Authors

Dikarev V.I.

Zhurkovich V.V.

Sergeeva V.G.

Rybkin L.V.

Dates

2005-01-10—Published

2003-05-16—Filed