Electronics and Telecommunications Research Institute

Korea Advanced Institute of Science and Technology

E and B Co., Ltd.

Sang-tae Kim

Yong-Seok Choi

Mi-Kyung Suk

Haeng-Sook Ro

Heung-Yong Kang

Seong-Yun Lee

Gwangmoon Park

Dong-Ho Cho

Ho-Won Lee

Jae-Jeung Kim

Gwang-Moon Park

Tae-sung Lee

Disclosed is an outdoor color-changeable film with self-recovering properties that includes a transparent base film; a hard-coating pearl layer formed on an outer surface of the transparent base film and includes pearl particles dispersed in a hard-coating agent; a first adhesive layer disposed on another surface of the transparent base layer; a color base film disposed on the first adhesive layer to laminate the color base film onto a surface of the hard-coating pearl layer; a second adhesive layer coated on a surface of the color base film; and a release film detachably laminated onto the second adhesive layer. The self-recovering properties include water repellency, anti-fouling, and antibacterial functions, ultraviolet ray blocking ability, and use in various fields due to a long-lasting film property and an insecticidal effect.

Outdoor color-changeable film having self-recovering properties

The present invention provides a method and a device for controlling contents of a user terminal having a touch screen, a recording medium therefor, and a user terminal having the same. The present invention relates to a method for controlling the contents of a user terminal having a touch screen, wherein, when a touch is detected on the touch screen while executing contents conversion, a part of the contents gets fixed on the basis of the detected location of the touch. Therefore, two or more contents can be easily compared using the fixed contents region as reference contents.

Method and device for controlling contents using touch, recording medium therefor, and user terminal having same

A digital spectrum analysis apparatus and method for direction finding (DF) and location is provided. The digital spectrum analysis apparatus includes: a multi-channel unit configured to convert signals inputted from antennas into digital signals, reduce a sampling rate of the digital signals by using a digital down converter (DDC), and convert the digital signals into baseband complex signals, and having a plurality of channels; a DF estimator configured to estimate the direction of the signal; a spectrum processing unit configured to map any one of a bearing and a power level of the baseband complex signal into coordinate system, and allocate different colors to one of the bearings and the power levels depending on the accumulation ratio of one of the bearing and the power level; and a display unit configured to display the power level and the bearing with colors.

Digital cumulative spectrum analysis apparatus and method for direction finding and location

A log periodic antenna includes first and second transmission lines parallel with each other; and a plurality of broadband radiation elements having first sides electrically connected to the first and second transmission lines, a predetermined angle being defined between the first sides of the broadband radiation elements and the first and second transmission lines, and second sides not electrically connected with the first and second transmission lines, the second sides having radiation surfaces larger than radiation surfaces of the first sides. A plurality of broadband radiation elements electrically connected with the first transmission line and a plurality of broadband radiation elements electrically connected with the second transmission line are positioned to face each other with reference to the first and second transmission lines.

Log periodic antenna

A digital spectrum analysis apparatus and method for direction finding (DF) and location is provided. The digital spectrum analysis apparatus for single-channel direction finding includes: a digital processing unit configured to receive a signal, convert the received signal into a digital signal, reduce a sampling rate of the digital signal by using a digital down converter (DDC), and convert the digital signal into a baseband complex signal; a spectrum processing unit configured to map a bearing and a power level of the baseband complex signal into coordinate system, and allocate different colors to the power levels depending on the accumulation ratio of the power levels; and a display unit configured to display the power levels with colors in order to estimate the bearing of the signal.

Growing community of inventors

Daejeon, South Korea

Sang-tae Kim