Hyundai Motor Company

Lg Display Co., Ltd.

Kia Motors Corporation

Lg Philips Lcd Co., Inc.

Sungkyunkwan University

Jae Hun Song

Chang Ho Lee

In Ho Ahn

Pu Jin Kim

Jae Ho Lee

Taeyong Kwon

Jae Kyung Kang

Dong Yun Lee

Kwanghyo Park

Yeon Ho Lee

An encryption method, includes performing, by an encryption system, bit reversal permutation of pixel data of a 2D image, arranging the pixel data as first-pixel data, and applying the 2D image to a butterfly algorithm of fast Fourier transform; determining, by the encryption system, a plurality of data paths based on the first-pixel data; and performing, by the encryption system, a first encryption of the first-pixel data into second-pixel data on a specific data path based on a number of the specific data path among the plurality of data paths.

Encryption apparatus and method of an image

A joining apparatus for panel sheets and a joining method for panel sheets using the same are provided. The joining apparatus includes an element punching device which stores and supplies elements according to a specification of a panel sheet and inserts the element into a first panel sheet among different types of panel sheets. Additionally, a welding device resistively welds a part of the first panel sheet into which the element is inserted by the element punching device.

Joining apparatus for panel sheets and joining method for panel sheets using the same

An apparatus for supplying a fastener for joining two different types of panels includes: a first bowl which accommodates fasteners of at least three specifications, aligns first fasteners of a first specification by a first guider, sequentially supplies the first fasteners to a supply unit through a first rail, and drops downward fasteners other than the first fasteners by a first dropping unit of the first guider; and a second bowl which is disposed at a lower side of the first bowl, accommodates the first fasteners dropped from the first bowl, aligns second fasteners of a second specification by a second guider, sequentially supplies the second fasteners to the supply unit through a second rail, and drops downward fasteners other than the second fasteners.

Apparatus for supplying fastener for joining panels

An apparatus and a method recognizes stamped characters, detects stamped depths of characters using the same, and/or accurately recognizes characters even when an image distortion occurs at stamped portion due to different stamped depths of characters.

Apparatus and method for recognizing stamped character and system for detecting stamped depth of character using the same

A welding portion inspection system includes a sensing head, and first and second electrodes that are disposed a predetermined distance from each other at one side of the sensing head, where front end portions of the first and second electrodes contact both sides of a welding portion to apply current such that a temperature of the welding portion is heated, and an infrared camera is disposed on the sensing head and detects a temperature distribution of the welding portion.

Welding portion inspection system and the control method of inspection system

A method of driving a lamp of a liquid crystal display device includes generating a control signal; generating a first drive signal using the control signal; generating a second drive signal by shifting a voltage level of the first drive signal; selectively outputting one of a high potential supply voltage and a low potential supply voltage in response to the second drive signal; transforming the selectively outputted voltage; and supplying the transformed voltage to a lamp.

Apparatus and method of driving lamp of liquid crystal display device

A lamp driving apparatus of a liquid crystal display includes a plurality of lamps arranged with a predetermined distance between adjacent lamps; a comparator to compare output voltages of lamps that are separated by more than the lamp distance; and a power interceptor to cut off the power supply of a lamp where mis-discharge is generated, in accordance with a comparison result of the comparator. A lamp driving method of a liquid crystal display which includes: comparing a designated reference voltage with lamp output voltages, and intercepting the power supply of the lamp of which the output voltage is different from the reference voltage to stop mis-discharge between lamps.

Growing community of inventors

Seoul, South Korea

Jae Hun Song