Samsung Electronics Co., Ltd.

National Cancer Center

Hyung-tae Kim

Kwang-Gi Kim

Woo-nyoung Lee

Dae-Hyun Kim

Kyoung-Won Nam

Dae-Kyung Sohn

Soo-Hyeon Kim

A source driver that responds to image data by generating an output signal which can be used to drive a flat panel display. The source driver includes a gamma decoder and an amplifier. The gamma decoder selects a first voltage among first analog gray voltages based on some upper bits of the image data, selects a second voltage among second analog gray voltages based on other upper bits of the image data, and selectively outputs at least one of the first and second voltages as a plurality of distributed analog signals in response to lower bits of the image data. The amplifier interpolates between the distributed analog signals from the gamma decoder to generate the output signal of the source driver. The amplifier includes bias circuits that are each configured to generate a bias current, and a plurality of MOSFETs. Each of the MOSFETs includes a source, a drain, and a gate terminal. The gate terminal of each of the MOSFETS is separately connected to receive a different one of the distributed analog signals from the gamma decoder. One of the source/drain terminals of each of the MOSFETS is separately connected to a different one of the bias circuits to receive the bias current, and the other one of the source/drain terminals of each of the MOSFETS is connected together at an output node to generate an interpolated signal. The output signal is based on the interpolated signal.

Source driver that generates from image data an interpolated output signal for use by a flat panel display and methods thereof

Provided is an apparatus for inserting a needle capable of obtaining automation of tissue sample collection or drug injection and operation stability by applying a link mechanism between a needle inserted into a specific part of a human body and a power source for providing a drive force. The apparatus includes a needle unit inserted into a human body, a drive unit configured to provide a drive force to the needle unit such that the needle unit reciprocates between an insertion position at which the needle unit is inserted into the human body and a withdrawal position at which the needle unit is withdraw to the outside of the human body, and a guide unit including a plurality of guide links each having at least two links relatively rotated by the drive force of the drive unit and radially disposed around the needle unit, and configured to guide the needle unit such that the needle unit translates between the insertion position and the withdrawal position in a longitudinal direction of the needle unit.

Apparatus for inserting needle

Provided is a surgical apparatus for transanal endoscopic microsurgery (TEM) in which a thin and long endoscope and surgical instruments are inserted through a natural orifice of a human body and the endoscope and surgical instruments are conveyed to the operation area in the body to perform the operation area in the body. According to the surgical apparatus for TEM, a rotation function is added to a barrel of the surgical apparatus for TEM to enable manual rotation of the barrel to a required extent and adjustment of an operation area, without separation of the surgical apparatus for TEM from a fixing frame during an operation. In addition, since the endoscope is disposed outside the barrel, it is possible to reduce the outer diameter of the barrel and uniformly maintain a visual direction of the endoscope even when the barrel is rotated. Further, since the rotation function is added to both the barrel and the surgical instrument insertion hole, more convenient operation is possible.

Surgical apparatus for transanal endoscopic microsurgery

Growing community of inventors

Gyeonggi-do, South Korea

Hyung-tae Kim