Samsung Electro-mechanics Co., Ltd.

Dong-a University Research Foundation for Industry-academy Cooperation

Sun Mi Sin

Joo Young Ha

Won Tae Choi

Joo Hyun Kim

Byung Hyun Kim

Bong Soon Kang

Won Woo Jang

In Cheol Chang

Jae Kwang Lee

Gi Dong Lee

Hak Yong Han

A touch screen apparatus includes a mirror part arranged on a side of a quadrilateral touch area, retroreflectors arranged on remaining three sides of the touch area, first and second light transmitting and receiving parts, each being disposed on each of two edges formed by one of the retroreflectors and emitting light to the touch area and detecting reflected light out of the emitted light by the mirror part and the retroreflectors, an angle extracting part calculating a plurality of light emitting angles for a location from which no reflected light is received, by at least one of the first and second light transmitting and receiving parts, and a coordinate generating part calculating a coordinate pair of a location in which light paths corresponding to the plurality of light emitting angles calculated by the angle extracting part intersect with each other.

Touch screen apparatus for determining accurate touch point coordinate pair

There is provided an apparatus for improving the sharpness of an image, which may prevent occurrence of distortion of an image in an edge enhancement process of the image by applying an active weight in accordance with a two-dimensional (2D) high pass filtering value of the image. The apparatus may include: a 2D high pass filter outputting a high frequency element value for the luminance values of pixels of an input image; a weight generating unit generating a weight changed depending on a magnitude of the high frequency element value; a weight applying unit applying the weight to the high frequency element value; and an edge enhancement image generating unit adding, to the luminance values of the pixels of the input image, the high frequency element value to which the weight is applied to thereby output an image of which an edge is enhanced.

Apparatus for improving sharpness of image

Growing community of inventors

Gyunggi-do, South Korea

Sun Mi Sin