S
Seung Sik Lee
Researcher at Electronics and Telecommunications Research Institute
Publications - 25
Citations - 532
Seung Sik Lee is an academic researcher from Electronics and Telecommunications Research Institute. The author has contributed to research in topics: Signal & Phase-locked loop. The author has an hindex of 7, co-authored 25 publications receiving 521 citations.
Papers
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Journal ArticleDOI
A miniature UWB planar monopole antenna with 5-GHz band-rejection filter and the time-domain characteristics
TL;DR: In this article, a planar monopole antenna with a staircase shape and small volume (25times26times1 mm3) was proposed for ultrawideband (UWB) systems.
Patent
Method and apparatus for acquiring reception synchronization in local wireless communication system
Byoung Hak Kim,Jaehwan Kim,Mi Kyung Oh,Sangjae Lee,Seung Sik Lee,Cheol-Ho Shin,Young Ae Jeon,Sangsung Choi +7 more
TL;DR: In this paper, a reception signal including an STF (short training field) in which a plurality of patterns are repeatedly transmitted is received, the STF including a first number of STF patterns and a second number of StF patterns having an opposite code to that of the first STF pattern.
Patent
Base station, terminal, and operating method thereof
Mi Kyung Oh,Young Ae Jeon,Cheol-Ho Shin,Seung Sik Lee,Sangjae Lee,Byoung Hak Kim,Sangsung Choi +6 more
TL;DR: In this paper, a base station and a terminal for supporting a low power mode are provided, where the base station transmits a first type of beacon signal for a terminal operating in a normal mode, a second type of beacons signal for an operating terminal in a low-power mode, and a charging signal for the operating terminal.
Patent
Real time video watermarking method using frame averages
TL;DR: In this paper, the authors proposed a watermarking method for protecting the copyright of digital data, which includes the step of dividing each of two successive frames into at least two sub-groups, adding and subtracting a value, which varies according to pixel locations, to and from a specific component value at each pixel location of the subgroups using Just Noticeable Difference (JND) values and averages of the specific component values at pixel locations of corresponding subgroups of the two consecutive frames.
Patent
Digital phase-locked loop apparatus using frequency shift keying and method of controlling the same
Seung Sik Lee,Sangsung Choi,Young Ae Jeon,Sangjae Lee,Byoung Hak Kim,Mi Kyung Oh,Cheol-Ho Shin,Kang-Yoon Lee,YoungGun Pu,Joon-Sung Park +9 more
TL;DR: In this article, a digital phase-locked loop apparatus using FSK includes a PFD detecting phase differences between a reference clock and a frequency-divided signal, and a first adder for generating first digital control codes by adding first digital codes, second digital codes and channel frequency codes including channel information to each other.