Apparatus for attenuating noise in vehicle and control method thereof
AssigneesHyundai Motor Company, Kia Motor Corporation
InventorJungnam Bae
Life of this patent
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Abstract
A vehicle includes an antenna configured to receive a broadcast signal, an amplifier configured to amplify the broadcast signal, a detector configured to detect an output signal of the amplifier, a variable transformer configured to output a negative feedback signal based on the detected output signal, an auto gain control configured to control an input signal of the amplifier based on the negative feedback signal and a controller configured to control the variable transformer and the auto gain control based on the output signal of the amplifier.
Claims19
A vehicle, comprising:
- an antenna configured to receive a broadcast signal;
- an amplifier configured to amplify the broadcast signal;
- a detector configured to detect an output signal of the amplifier;
- a variable transformer configured to output a negative feedback signal based on the detected output signal;
- an auto gain control configured to control an input signal of the amplifier based on the negative feedback signal;
- and
- a controller configured to control the variable transformer and the auto gain control based on the output signal of the amplifier.
A control method of a vehicle, comprising:
- receiving a broadcasting signal;
- amplifying the broadcasting signal by an amplifier;
- detecting an output signal of the amplifier;
- converting the output signal of the amplifier to a negative feedback signal by a variable transformer;
- and
- adjusting an input signal of the amplifier in response to a negative feedback signal,
- wherein the converting comprises:
- changing a conversion ratio of the variable transformer if a magnitude of the output signal of the amplifier is greater than a reference value;
- and
- reducing the conversion ratio of the variable transformer if the magnitude of the output signal of the amplifier is not greater than the reference value.
Dependencies are inferred from the claim text.