CAR DEVICE WHICH DETECTS SIGNALS FROM RADAR EQUIPMENT WHICH CHECKS HIGHWAY TRAFFIC SPEED Russian patent published in 1997 - IPC

FIELD: radar instruments. SUBSTANCE: device has receiving antenna, amplitude microwave modulator, amplitude detector, flavor signal amplifier, synchronous detector, flavor signal generator and recording unit which has multiple-level comparator, which input serves as device input, first, second, third and fourth light-emitting diodes, first, second, third and fourth diodes, first, second, third and fourth resistors, sound frequency oscillator, which has serial circuit of sound signal duration generator with electronic frequency tuning, and filling frequency generator, which output serves as output of sound frequency oscillator. Input of former generator serves as input of sound frequency oscillator. In addition device has acoustic emitter. Receiving antenna is connected to microwave input of amplitude microwave modulator, which output is connected to microwave input of amplitude detector. Output of microwave detector is connected to input of flavor signal amplifier, which output is connected to signal input of synchronous detector. reference voltage input unit of synchronous detector is connected to control input of amplitude microwave modulator and output of generator of flavor signal. Output of synchronous detector is connected to input of recording unit and through said input terminal to input of multiple-level comparator. First output of multiple-level comparator is connected to anode of first light-emitting diode and anode of first diode, which cathode is connected to one terminal of first resistor. Second output of multiple-level comparator is connected to anode of second light-emitting diode and anode of second diode, which cathode is connected to one terminal of second resistor. Third output of multiple-level comparator is connected to anode of third light-emitting diode and anode of third diode, which cathode is connected to one terminal of third resistor. Fourth output of multiple-level comparator is connected to anode of fourth light-emitting diode and anode of fourth diode, which cathode is connected to one terminal of fourth resistor. Another terminals of first, second, third and fourth resistors are connected to input of sound frequency oscillator, which output is connected to signal input of acoustic emitter Cathodes of first, second, third and fourth light-emitting diodes are connected to signal input of common line (housing) of device. EFFECT: increased functional capabilities. 2 dwg