| 摘要 |
systems for protection of various objects against access of strangers. SUBSTANCE: the electronic lock has members in the form of a mechanical lock with an electric contact, actuator, radio transmitter, radio receiver, coding means, inductance coil, frequency conversation device, modulation code generator, phase manipulator, multipliers, narrow-band filter, low-pass filter, memory unit, correlator and a threshold unit. EFFECT: enhanced noise immunity, reliability and security. 2 dwg
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