Abstract: Disclosed is a method of signal detection. A received input signal is divided into a frame unit and each input signal present in a first frame and a second frame is transformed into a frequency signal. Then, first power spectrum information and second power spectrum information are computed utilizing the transformed frequency signal and a delta spectrum entropy value corresponding to a difference of the two computed power spectrum information is obtained. A predetermined input signal is included in a predetermined frame among the input signal after judging through comparing the delta spectrum entropy value with a critical value. Desired signal can be detected in a noisy environment including a noise signal by using the delta spectrum entropy value.

Abstract: An interface system between a user and a vehicle includes a vehicle information terminal in communication with the vehicle; a VXML server that converts information into voice signals, and receives and transmits the voice signals between the vehicle information terminal and a telephone; an SMS server that converts information into a message, and transmits the message to the telephone; and a WIPI server that receives and transmits vehicle remote control information between the telephone and the vehicle information terminal.

Abstract: Disclosed is a method of signal detection. A received input signal is divided into a frame unit and each input signal present in a first frame and a second frame is transformed into a frequency signal. Then, first power spectrum information and second power spectrum information are computed utilizing the transformed frequency signal and a delta spectrum entropy value corresponding to a difference of the two computed power spectrum information is obtained. A predetermined input signal is included in a predetermined frame among the input signal after judging through comparing the delta spectrum entropy value with a critical value. Desired signal can be detected in a noisy environment including a noise signal by using the delta spectrum entropy value.

Abstract: An interface system between a user and a vehicle includes a vehicle information terminal in communication with the vehicle; a VXML server that converts information into voice signals, and receives and transmits the voice signals between the vehicle information terminal and a telephone; an SMS server that converts information into a message, and transmits the message to the telephone; and a WIPI server that receives and transmits vehicle remote control information between the telephone and the vehicle information terminal.