Wireless in-the-ear type hearing aid system having remote control function and control method thereof

A wireless ITE (In-The-Ear) type hearing aid system having a remote control function, the wireless ITE type hearing aid system comprising:

• left and right hearing aids that are respectively inserted into ears of a human body and controls individually built-in features depending on a remote control signal that is applied in a near field magnetic induction (NFMI) method, to thus process transmission and reception of audio signals and various information signals;
• a smart device that individually remote controls functions that are provided in the left and right hearing aids through an application equipped in the smart device;
• and
• a wireless relay module that transmits and receives the audio signals and various information signals with respect to the left and right hearing aids in the NFMI method, and that processes individual remote control signals for the left and right hearing aids in which the individual remote control signals are transmitted from the smart device via a near field communication (NFC) method with respect to the smart device;
• wherein each of the left and right hearing aids comprises:
• an antenna that is provided at one side of a hearing aid case, and that executes the NFC method by the NFMI principle;
• a microphone that is provided at one side of the hearing aid case, to thus convert a sound signal that is collected by one ear of the human body into an electrical signal to then be output;
• a digital signal processor (DSP) chip that amplifies the signal output from the microphone into a frequency level set according to the remote control signal of the smart device in which the remote control signal of the smart device is wirelessly transmitted and received via the antenna, to then be output, and that transmits the signal collected by the microphone to the wireless relay module via the antenna or receive various pieces of audio information included in the smart device via the wireless relay module to then process the received various pieces of audio information into a pulse code modulation (PCM) signal to then be output;
• a receiver that converts the output signal of the DSP chip into a vibration signal that can be heard by the human body, to then output the vibration signal;
• and
• a battery that is provided at one side of the hearing aid case and supplies power to internal circuitry including the DSP chip.