Samsung Electronics Co., Ltd.

Osong Medical Innovation Foundation, Korea University Research and Business Foundation

Ji-Yong Kim

Je-Kook Kim

Hyoung-seok Oh

Seong-Whan Lee

Jong-haeng Lee

Kyu-Ik Cho

Se-jong Park

Jun-han Bae

Su-in Kim

Jae-Jung Park

Hyeon-je Choe

Tae-jeong Kim

Teck-Su Oh

Myung-Ryul Jang

A semi-dry electrode for recording an electroencephalogram, includes an outer membrane that forms an electrode contact surface with a predetermined area contacting a scalp; an electrode body that is connected to an edge of the outer membrane and forms an internal space into which an electrolyte solution is filled; and an electrical conductor sensor that is located inside the electrode body and measures an ion current transmitted through the outer membrane. The outer membrane has a plurality of fine holes and holes that are larger than the fine holes.

Membrane based semi-dry electrode for recording electroencephalogram

An electronic device includes a connector connected to a cable external to the electronic device and including a plurality of pins; a first water detection circuit connected to at least one first pin of the plurality of pins and generating a first detection result by detecting whether there is water in the connector based on resistance of the at least one first pin; and a second water detection circuit connected to at least one second pin of the plurality of pins, entering a water detection mode when the first detection result indicates the presence of water, and detecting whether there is water in the connector based on resistance of the at least one second pin.

Water recognition system, electronic device including the same, and method of recognizing water thereby

A read-out circuit of an image sensor includes a ramp signal generator, a bias voltage generator and a conversion circuit. The ramp signal generates a ramp signal that linearly varies at a constant slope. The bias voltage generator generates a bias voltage based on a power supply voltage having a first noise component. The conversion circuit generates a reference voltage based on the bias voltage and the ramp signal, and performs an analog-to-digital conversion on an analog signal from a pixel to generate a digital signal corresponding to the analog signal. The analog signal has second noise component. The bias voltage generator adjusts an alternating current component included in the bias voltage such that a magnitude of a third noise component added to the reference voltage is substantially the same as a magnitude of the second noise component.

Read-out circuits of image sensors and image sensors including the same

Growing community of inventors

Seoul, South Korea

Ji-Yong Kim