HANNAM University Institute for Industry-Academia Cooperation Patent applications |
Patent application number | Title | Published |
20140152489 | HIGH-FREQUENCY OCEAN SURFACE RADAR USING FREQUENCY MULTIPLEXING AND ORTHOGONAL WAVEFORMS - A method of reusing a frequency by allocating two orthogonal signal waveforms to the same frequency band is as follows. Two high-frequency ocean surface radars can be operated in the same frequency band without mutual interference by allocating a signal having an up-chirped LFM waveform and a signal having a down-chirped LFM waveform, having the same frequency band, to the two radars by employing an orthogonal characteristic between the two signals. Furthermore, a plurality of radars located within a distance within which interference is possible can be operated without mutual interference by combining and allocating two orthogonal signals and a plurality of frequency bands. | 06-05-2014 |
20120302712 | BENZOBIS(THIADIAZOLE)-BASED ALTERNATING COPOLYMER AND PREPARATION THEREOF - Disclosed are a benzobis(thiadiazole)-based alternating copolymer, a method for preparing the same, and an organic electronic device including the same. | 11-29-2012 |