Samsung Electronics Co., Ltd.

Jong-hoon Lim

Myung-Sik Kim

Yun-Je Oh

Jae-Hyun Park

Sun-Tae Jung

June-Hee Lee

Ho-seong Seo

Young-Seop Han

Dae-myung Kim

Sang-tae Kim

Yang-Wook Kim

Chang-Yeong Kim

Toshikazu Takayanagi

Jeong-Sik Cho

Dong-Churl Kim

Jong-hun Lee

Jeong-Hwan Song

Se-Yoon Kim

Kyung-tack Kwon

Seung-beom Han

Kyung-Shik Lee

A robot and a controlling method thereof are provided. The robot includes a driver unit configured to move a location of the robot, a sensor unit configured to sense an environment around the robot, and a controller configured to, in response to the location of the robot being changed by a user, check a current location of the robot by using the environment of the changed location sensed by the sensor unit and pre-stored map information, determine a task to be performed, based on the checked location and the environment of the changed location, and control the driver unit according to the determined task.

Robot and controlling method thereof

A wearable device may include: an analog watch unit that includes a time indicating unit that indicates time, and a drive unit that drives the time indicating unit; a touch screen that senses an input for adjusting the drive unit; and a control unit that controls the drive unit in response to the sensed input.

Wearable device

A photographing apparatus includes: a lens unit; a light transmission adjustment unit that adjusts light transmittance of light that passes through the lens unit; a photographing unit that is disposed a reflected light path of the light transmission adjustment unit and that generates an image data according to received light, and a view finder that is disposed on a transmitted light path of the light transmission unit.

Photographing apparatus and method

A wireless transceiving system capable of processing multi-channel broadcast signals and Ethernet signals from an Ethernet PON (Passive Optical Network), the wireless transceiving system includes a wireless STB (Set-top Box) transmitter for wirelessly transmitting broadcast signals which are multi-channel image signals and Ethernet signals; and at least one wireless STB receiver for receiving the broadcast signals and the Ethernet signals transmitted from the wireless STB transmitter to output image signals and audio signals corresponding to the received broadcast signals, and to support an Ethernet port based on the received Ethernet signals.

Optical network for bi-directional wireless communication

Disclosed are an optical coupler type filter, and a wavelength stabilizing apparatus of a light source using the same. The wavelength stabilizing apparatus includes an optical coupler type filter including a first waveguide provided with first and second terminals, a second waveguide provided with a third terminal, a coupling region where the first and second waveguides are adjacent to each other so as to couple lights, and a grating disposed in the coupling region, a light source for outputting light to the first terminal, a first optical detector for detecting extracted light outputted from the third terminal as a first electric signal, a signal processor for determining the wavelength of the light outputted from the light source based on the power of the first electric signal, and outputting a control signal in the case that the wavelength of the light deviates from a stabilizing wavelength, and a driver for controlling the output wavelength of the light source based on the control signal, wherein the length of a sub-region of the coupling region, formed between the grating and the first terminal is set to minimize the power of a recurrent light reflected by the grating and outputted to the first terminal.

Optical coupler type filter and wavelength stabilizing apparatus of light source using the same

Growing community of inventors

Suwon-si, South Korea

Jong-hoon Lim