Smart key apparatus and method for processing signal of smart key apparatus

摘要

A smart key apparatus and a method of processing a signal from the smart key apparatus is provided and the smart key apparatus includes a plurality of antennas that receive a Low Frequency (LF) signal from a vehicle via a plurality of reception axes. In addition, an LF reception controller receives the LF signal via a reception antenna which is determined by sequentially verifying a reception level according to a set order of the plurality of antennas when receiving the LF signal and determines an antenna having a highest reception level as a reception antenna by comparing a reception level that corresponds to a plurality of antennas respectively. A signal processing unit processes the LF signal received via the reception antenna.

主权项

1. A method for processing a signal of a smart key apparatus, the method comprising:
determining, by a controller, a first reception antenna by sequentially verifying a reception level according to a set order of a plurality of antennas when receiving a Low Frequency (LF) signal from the plurality of antennas which receive the LF signal from a vehicle via a plurality of reception axes; processing, by the controller, the LF signal which is received via the first reception antenna; comparing, by the controller, a reception level that corresponds to each of the plurality of antennas when a communication error with the vehicle occurs; determining, by the controller, an antenna having a highest reception level among the plurality of antennas as a second reception antenna based on the comparison and changing, by the controller, the reception level of remaining antennas into a lowest level; and processing, by the controller, the LF signal which is received via the second reception antenna.