Chang-Nam
Chang-Nam Kim, Gyeonggi-Do KR
Patent application number | Description | Published |
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20140239272 | Organic Light Emitting Display Device and Method of Manufacturing the Same - An organic light emitting display device and a method of manufacturing the same are provided. The organic light emitting display device includes a substrate including red, green, and blue sub-pixel regions, reflective electrodes on the substrate, a reflective protective film on the substrate and surrounding sides and front surfaces of each reflective electrode, the reflective electrodes being on the reflective protective film, first electrodes on the substrate, the reflective protective film being on the first electrodes, the first electrodes including different respective thicknesses in the respective red, green, and blue sub-pixel regions, a second electrode facing the first electrodes, and a white organic common layer between the first and second electrodes. | 08-28-2014 |
Chang-Nam Song, Yeongdeungpo-Gu KR
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20130199570 | CLEANING ROBOT SYSTEM AND ITS METHOD FOR CONTROLING - Disclosed are a cleaning robot system and its method for controlling which make it possible to reliably and quickly clean with the aid of the cleaning robot. The cleaning robot system comprises at least one external device each formed of an indicator and a virtual wall setting function, with the aid of which cleaning work can be performed by the unit of blocks about a cleaning area reference point, not leaving non-cleaned area behind. Since the access of the cleaning robot can be restricted by means of a virtual wall set by an external device, any damages of furniture due to a collision of the cleaning robot can be prevented, and the cleaning robot can be barred from escaping from the set cleaning area. | 08-08-2013 |
Chang-Nam Yoo, Seoul KR
Patent application number | Description | Published |
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20110002315 | DIGITAL MULTIMEDIA LOCAL AREA WIRELESS TRANSMISSION SYSTEM AND LOCAL AREA WIRELESS TRANSMISSION METHOD USING THE SAME - A local area wireless transmission system includes: at least one transmitter transmitting a multimedia data signal with a first speed; at least one receiver receiving the multimedia data signal; and at least one master receiver transmitting a synchronization control signal with a second speed lower than the first speed, the at least one master receiver receiving the multimedia data signal from the at least one transmitter wirelessly and from the at least one receiver wiredly. | 01-06-2011 |
Chang-Nam Yu, Nowon-Gu KR
Patent application number | Description | Published |
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20130272275 | DIGITAL WIRELESS INTERCOM SYSTEM AND DRIVING METHOD THEREOF - The present invention provides a digital wireless intercom system including: at least one master base station; at least one remote base station connected to the at least one master base station wiredly through at least one of a local area network, a local area network infrastructure and an internet, the at least one remote base station transmitting and receiving a synchronization signal and a data signal of digital type with the at least one master base station; a plurality of first belt packs within a transmission radius of the at least one master base station, the plurality of first belt packs transmitting and receiving the synchronization signal and the data signal with the at least one master base station wirelessly; and a plurality of second belt packs within a transmission radius of the at least one remote base station, the plurality of second belt packs transmitting and receiving the synchronization signal and the data signal with the at least one remote base station wirelessly, wherein the at least one master base station and the at least one remote base station are driven with different independent frequencies based on a frequency interference situation, and wherein the synchronization signal and the data signal transmitted and received between the at least one master base station and the at least one remote base station have different starting timings of period | 10-17-2013 |