Abstract: Disclosed is an audio signal processing device that estimates a room impulse response (RIR) filter of a space. The audio signal processing device may include a processor. The processor receives an input signal, and estimates, from the received input signal by using a machine learning model, an RIR filter representing a characteristic of a response transferred to a listener from a sound source located in a predetermined location in a space where the input signal is collected, wherein the predetermined location is a relative location determined based on the listener, wherein the machine learning model is trained to estimate a reference RIR filter from signals response associated with a reference RIR filter corresponding to the predetermined location and a plurality of additional RIR filters that represent characteristics of responses transferred to the listener from sound sources located in a space represented by the reference RIR filter.

Abstract: Provided are an antenna and a mobile terminal including the antenna. The antenna includes a loop antenna, a solenoid, and a plurality of connections. The loop antenna is installed on a mobile terminal. The solenoid is connected in parallel to the loop antenna, and receives power. The connections connect the loop antenna to the solenoid. Accordingly, the degree of freedom of an antenna shape and a recognition distance of the antenna are improved.

Abstract: Provided are an antenna and a mobile terminal including the antenna. The antenna includes a loop antenna, a solenoid, and a plurality of connections. The loop antenna is installed on a mobile terminal. The solenoid is connected in parallel to the loop antenna, and receives power. The connections connect the loop antenna to the solenoid. Accordingly, the degree of freedom of an antenna shape and a recognition distance of the antenna are improved.