Samsung Electronics Co., Ltd.

Almus Corp.

Soon Hyuk Hong

Seo Young Kim

Ji Hyun Park

Jong Ho Park

Byung Il Min

Jeong Kwon Park

Ju Heon Ko

Yun Uk Ha

Seung Hyun Baek

Gi Oh Kim

JongWon Lee

A speaker unit for an earphone is provided. The speaker unit for an earphone may include a frame; a magnet; a plate fixed to the frame and in contact with the magnet; a diaphragm; a coil disposed to overlap the magnet and the plate in a radial direction; and a flexible printed circuit board (FPCB), wherein the magnet includes a first surface and a second surface arranged on an outer surface of the magnet, the first surface is a surface in contact with an inner surface of the frame, the second surface is a surface spaced apart from the inner surface of the frame, and the frame forms a first sound emission path defined by a space between the inner surface thereof and the second surface of the magnet in the radial direction.

Speaker unit for earphone

A speaker unit is provided. The speaker unit may include a frame; a yoke elongated on the frame along a front-to-rear direction; a first magnet disposed on one side of the yoke; a first plate disposed on one side of the first magnet; a first diaphragm disposed on one side of the first plate; a first coil fixed to the first diaphragm; a second magnet disposed on the other side of the yoke; a second plate disposed on the other side of the second magnet; a second diaphragm disposed on the other side of the second plate; a substrate disposed on the frame; a microphone electrically connected to the substrate; and a second coil fixed to the second diaphragm, wherein the first magnet and the second magnet are both in contact with the yoke, the frame includes a seating portion, and the microphone is disposed in the seating portion.

A user interface device of a remote control system for a robot and a method using the same are provided. The user interface device includes: a radio frequency (RF) unit for receiving, from a remote control robot, camera data and at least one sensor data detecting a distance; a display unit having a main screen and at least one auxiliary screen; and a controller having an environment evaluation module for determining whether the received camera data are in a normal condition, and having a screen display mode change module for displaying, if the received camera data are in a normal condition, the camera data on the main screen and displaying, if the received camera data are in an abnormal condition, the sensor data on the main screen.

User interface device of remote control system for robot device and method using the same

Growing community of inventors

Gyeonggi-do, South Korea

Soon Hyuk Hong