Samsung Electronics Co., Ltd.

Duseung Oh

Sangun Bang

Dongjo Kim

Dongjoon Kim

Woonhyung Heo

Sungeun Lee

Jinsoo Lee

Sungkyu Cho

Junhan Bae

Chanyoung Moon

Jaehyun Bae

Arom Lee

Youngsoo Lee

Sangkee Jung

Jonghyeok Chun

A device for detecting an attachment and detachment of a portable device according to example embodiments of the present disclosure may include a first terminal and a second terminal configured to be connected to the portable device; a pull-up circuit connected to the first terminal; a charging circuit configured to generate an output voltage for charging the portable device; and a controller configured to control the charging circuit to generate the output voltage when a voltage of the first terminal drops in a detachment state, and determine whether to transition to an attachment state based on an output current output through the first terminal during a first period in which the output voltage is generated.

Device and method of detecting attachment and detachment of portable device

A mobile system includes a first mobile device configured to output a signal having a level less than or equal to a reference level on the basis of a charged state of a battery in the first mobile device and a second mobile device configured to receive the signal and to selectively provide power to the first mobile device on the basis of a duration time for which a level of the signal is maintained to be less than or equal to the reference level and a toggle time for which the signal is toggled.

Mobile device and operating method thereof

A portable device and an operating method of the same are provided. The portable device includes a power line communication module performing power line communication with an external device, a memory module storing firmware data, and a controller controlling the power line communication module and the memory module, wherein the power line communication module sequentially provides an update initiation signal and firmware data to the external device, and provides an update end signal to the external device in response to a response signal transmitted by the external device.

Portable device communicating with charger and operating method thereof

An autofocus camera apparatus and method using multiple motors are provided. The AF camera apparatus includes a housing, an AF lens group disposed in the housing, a processor configured to generate a control signal to control movement of the AF lens group according to a determined focus location, and a plurality of motors configured to move the AF lens group in an optical axis direction according to the control signal of the processor.

Autofocus camera apparatus and method using multiple motors

Growing community of inventors

Hwaseong-si, South Korea

Duseung Oh