Lg Electronics Inc.

Byunghoon Min

Byungju Dan

JungSik Kim

Jooyoung Lee

Eulpyo Hong

Byeongrim Jo

Jaeyoung Han

Gyunghwan Yuk

Honggul Jun

Heuisik Seo

Jongmyeong Lee

Sangho Yoon

Yoonyoung Chang

Sungmin Sohn

Jaehark Park

Byeong Rim Jo

Hongsoo Park

Juhn Ho Park

Hong Gul Jun

Yoon Young Chang

Yoonju Im

Duksang Kim

The present invention relates to a mobile terminal, an audio output device and an audio output system comprising the same. The mobile terminal according to an embodiment of the present invention comprises: a memory for storing audio data; a communication unit for receiving a repetitive radio signal from the audio output device; and a control unit controlling the audio data such that the audio data is transmitted to the audio output device in a wireless manner when the strength or the level of the repetitive radio signal is a first predetermined value or more, while reproducing the audio data, wherein the communication unit comprises a first communication module for receiving the repetitive radio signal and a second communication module for outputting the audio data to the audio output device. Therefore, the audio output device can output a sound of the audio data reproduced by the mobile terminal.

Mobile terminal, audio output device and audio output system comprising same

An electromotive walking assistance device includes a drive unit including a plurality of wheels and a motor for driving at least on portion of the plurality of wheels, a sensor unit sensing a distance from a user, a manipulation unit sensing a user's manipulation, and a controller controlling the motor based on a signal of the distance from the user and a signal of the user's manipulation.

Electric walking assistant device

A walking-assistant device is provided comprising a driving unit that includes four wheels and four actuators for adjusting heights of the four wheels, a mechanism unit that includes two vertical frames whose length is adjusted and connection frames for fixing and connecting the vertical frames, and a manipulation unit that includes a plurality of sensors for grasping a user's moving intention and controls the driving unit and the mechanism unit based on a signal detected by the sensors.

Walking-assistant device

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Seoul, South Korea

Byunghoon Min