Samsung Electronics Co., Ltd.

Electronics and Telecommunications Research Institute

Kyung-Sik Son

Sung-Ik Park

Soo-In Lee

Jae-Ho Kim

Yong-Tae Lee

Jong-Soo Lim

Hyoung-Nam Kim

Tae-Il Chung

Hyung-Soon Kim

Ji-Bong Lee

Wan-Jin Kim

Provided is an on-channel repeater capable of removing feedback signals based on pilot partitioning, which can efficiently remove a feedback signal by quickly coping with even a situation in which a feedback channel changes rapidly, by reducing a filter-coefficient update interval, i.e., increasing the number of times of filter-coefficient creation, through pilot partitioning, and a method thereof. The on-channel repeater includes: a receiver for receiving a signal; a subtractor for subtracting a replica of a feedback signal from the signal received in the receiver to remove the feedback signal; a replica creator for creating a filter coefficient using pilot partitioning, creating a replica of the feedback signal using the created filter coefficient, and feeding back the created replica to the subtractor; and a transmitter for transmitting an output signal of the subtractor.

On-channel repeater for feedback capable of removing feedback signals based on pilot partitioning and method thereof

An image processing system for displaying pixel data on a screen performs a binary-encoding method using error diffusion with edge enhancement. In the method for binary-encoding the image data, pixels to be binary-encoded are divided into normal and edge regions, and the pixel data is binary-encoded in accordance with the divided regions. By using the method, bars on the display screen which are unpleasant to the eye can be removed and an image with good edge sharpness can be obtained.

Method and apparatus for binary-encoding image data using error

Growing community of inventors

Busan, South Korea

Kyung-Sik Son