| Industry-Academic Cooperation Foundation Yeungnam University Patent applications |
| Patent application number | Title | Published |
|---|
| 20120070014 | SAFE EARPHONE SYSTEM AND METHOD OF DRIVING THE SAME - Provided are a safety earphone system and a method of driving the same. The safe earphone system includes a microphone block that includes: a sound input terminal for receiving sound information from a sound system; a sound output terminal for receiving the sound information and transmitting the sound information to an earphone; a microphone unit for detecting an outside sound; and a controller for decreasing the sound information volume or blocking a connection between the sound output terminal and the sound input terminal if a level of the outside sound detected by the microphone unit exceeds a threshold value. Accordingly, an output state of the earphone is adjusted according to a level of the outside sound detected by a microphone module. In other words, a user may hear the outside sound while wearing the earphone since the sound information transmitted to the earphone is blocked if the level of the outside sound exceeds the threshold value. Thus, the user listens to important ambient sounds at a predetermined level or above while receiving the sound information, without having to remove the earphone. Also, the safety earphone system may be simply and easily applied to a conventional earphone or headset without having to largely change a structure of the conventional earphone or headset. | 03-22-2012 |
| 20100167907 | METHOD FOR MANUFACTURING TRANSPARENT POLYCRYSTALLINE ALUMINUM OXYNITRIDE - The present invention relates to a method of manufacturing a transparent polycrystalline aluminum oxynitride. Aluminum oxynitride manufactured by prior art methods has a great number of porosities therein and thus has low transparency. The present invention is directed to solving such a problem. In the method of manufacturing aluminum oxynitride of the present invention, a sintering additive added to a source powder includes less than 0.5 wt. % MgO. Further, the source powder is presintered at 1550° C. to 1750° C. so that a relative density becomes 95% or more and is then resintered at 1900° C. or more so that a relative density higher than that of presintering can be accomplished. According to the present invention, a cubic-phased polycrystalline aluminum oxynitride ceramic can be obtained, wherein porosities therein are nearly eliminated and its substantial transparency becomes 95% or more. | 07-01-2010 |
| 20090208986 | Method and kit for diagnosing acute myocardial infarction - Disclosed herein are method and kit for diagnosing acute myocardial infarction which is capable of predicting and diagnosing whether coronary artery disease is proceed to myocardial infarction or not by using an increase in triglyceride level in high density lipoprotein (HDL) or low density lipoprotein (LDL), a decrease in cholesterol level in HDL, increase of interleukin-6, CETP (cholesteryl ester transfer protein) and apo (apolipoprotein) C-III as a biomarker that are characteristic changes occurred only in sera of myocardial infarction patients among patients with coronary artery disease. | 08-20-2009 |
