Samsung Electronics Co., Ltd.

Lg Electronics Inc.

Kyoungjin Lee

Eunkyung Kim

Hyoungseok Oh

Jehyung Yoon

Kang Soo Lee

Taehyun Lim

Changhee Han

Byoungkwon Roh

A mobile terminal including a wireless communication unit configured to wirelessly communicate with at least one other terminal; a touch screen display; and a controller configured to select an object displayed on the touch screen display based on a first touch gesture input with respect to the object, perform a second touch gesture a predetermined time after the first touch gesture, in which the second touch gesture has a dragging direction, and perform a first preset function based on the second touch gesture having a first dragging direction and perform a second preset function based on the second touch gesture having a second direction different than the first direction.

Method for controlling a terminal using a double touch gesture and terminal thereof

A power converter includes a converter circuit comprising a semiconductor switch configured to couple a power supply node to an output node responsive to an input signal applied to a control terminal thereof. The power converter further includes a slew rate limiter circuit coupled to the control terminal of the semiconductor switch and configured to limit a slew rate of an output voltage at the output node. The semiconductor switch may include a field-effect transistor (FET), the control terminal may include a gate terminal of the FET, and the slew rate limiter circuit may include a capacitor having a capacitance less than a gate-source capacitance of the FET.

Power converters with adaptive slew rate and methods of operating same

A current mode PWM converter configured to maintain a duty ratio of a driving signal for driving a boost circuit boosting an input voltage to an output voltage when a frequency of a clock signal for generating the driving signal is varied.

Current mode PWM boost converter with frequency dithering

Growing community of inventors

Seoul, South Korea

Kyoungjin Lee