Patent ID: 9100081
Filing Date: 2015-08-04
Classification: H04B

Abstract:
1. A radio reception device for vehicle connected to an antenna, comprising: an oscillator; a first mixer that outputs a signal generated by mixing an output signal from the oscillator with a broadcast signal received by the antenna; an internal line on which a noise is intruding; a filter that is electrically connected to the internal line by a signal line and extracts the noise intruding on the internal line through the electrical connection; a second mixer that outputs a signal generated by mixing the noise extracted by the filter with the output signal from the oscillator; a variable phase shifter that outputs a signal generated by inverting a phase of the signal output from the second mixer by 180 degrees; an amplitude regulator that outputs a signal generated by regulating an amplitude of the signal output from the variable phase shifter; and an adder that outputs a signal generated by adding the signal output from the amplitude regulator to the signal from the first mixer.