Hyoung
Changhee Hyoung, Daejeon KR
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20150066233 | POWER MANAGEMENT APPARATUS AND MULTI-SOURCE ENERGY HARVESTING SYSTEM USING THE SAME - Disclosed is a power management apparatus and a multi-source energy harvesting system using the apparatus, which manage power supplied by individual harvesting sources without wasting the power, thus efficiently distributing the power to a battery. The power management apparatus includes a plurality of comparison units configured to compare voltages of storage devices respectively connected to output terminals of a plurality of harvesting power sources with a preset threshold voltage. A control unit is configured to control an operation of the power management apparatus. A plurality of switching units are installed between the storage devices and a battery and are configured to be turned on/off in response to switching control signals output from the control unit and to form power transmission paths between corresponding storage devices and the battery. The control unit generates and provides the switching control signals based on output signals of the comparison units. | 03-05-2015 |
Chang-Hee Hyoung, Yuseong-Gu KR
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20130243042 | PHASED SPREADING SCHEME-BASED TRANSMISSION APPARATUS AND METHOD OF OPERATING THE SAME - There are provided a phased spreading scheme-based transmission apparatus and a method of operating the same. The phased spreading scheme-based transmission apparatus includes a spreading unit performing a first spreading operation of defining a first spreading code and spreading an input signal by using the defined first spreading code in response to a control signal defining a spreading coefficient, and a second spreading operation of selecting a second spreading code based on the control signal defining the spreading coefficient and spreading an input signal by using the selected second spreading code, the first and second spreading codes having different spreading coefficients. | 09-19-2013 |
20130265026 | TRANSMITTING AND RECEIVING ELECTRODE SYSTEM AND POWER TRANSMISSION METHOD USING THE SAME - A transmitting and receiving electrode system, and power transmission method using the same are provided. The transmitting and receiving electrode system includes: a voltage/current detection unit measuring a voltage and a current in real time while power is being transmitted between first and second electrodes; a controller calculating a variable element value based on the voltage and current values transferred from the voltage/current detection unit; and a variable element unit converting a variable element under the control of the controller to adjust an impedance of a power source. | 10-10-2013 |
20130279542 | SPREADING CODE PRODUCING APPARATUS - This invention relates to spreading code producing apparatus, which comprises: two phase shifters for spreading code which receive bits for determining spreading codes and phase information and producing spreading codes; and multiplexers which receive two spreading codes produced said two phase shifters for spreading code, receive bits through separate way which defines outputting order of the received two spreading codes and produce spreading codes with same length as said received two spreading codes. Therefore, many information using few spreading codes can be transmitted so that data transmission rate can be raised. Furthermore, communication service with high speed can be performed among communication devices using human body communication etc. | 10-24-2013 |
Da-Hye Hyoung, Gwangju KR
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20140189742 | METHOD AND APPARATUS FOR PROVIDING BROADCAST SERVICE THROUGH HAND MOTION DETECTION - A method for providing broadcast service includes: (a) receiving schedule information for a multiple number of broadcast programs from a headend; (b) outputting a program selected by a user as a full screen; and (c) outputting a program navigation page by using the schedule information of the multiple broadcast programs if a pre-designated hand motion is detected. The program navigation page includes one of a category list page and a program list page, the category list page containing categories grouped according to use time, and the program list page containing programs belonging to each category. Depths are assigned in the order of the category list page, the program list page, and the A/V page, from higher to lower depths. A movement from a higher to a lower depth and a movement from a lower to a higher depth are performed via hand motions having different directionalities. | 07-03-2014 |
Dong-Kyu Hyoung, Gangwon-Do KR
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20130261459 | ULTRASOUND SYSTEM AND METHOD OF OBTAINING ULTRASOUND IMAGE - A method of obtaining an ultrasound image, the method including: obtaining a bio cycle of an examinee comprising at least one section; setting an ultrasound mode corresponding to each of the at least one section of the bio cycle or a beam forming method; transmitting an ultrasound signal to an object of the examinee according to the set ultrasound mode or beam forming method, receiving an echo signal from the object, and obtaining ultrasound data; and generating an ultrasound image of the object by using the obtained ultrasound data. | 10-03-2013 |
Hee Jun Hyoung, Yeoju-Gun KR
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20120130101 | CERAMIC CATALYST USED IN MANUFACTURE OF FATTY ACID ALKYL ESTERS AND METHOD FOR PREPARING HIGH PURITY FATTY ACID ALKYL ESTERS USING THE SAME - The present invention relates to a catalyst used in the manufacture of fatty acid alkyl esters and a method for preparing fatty acid alkyl esters using the same. The invention provides a high hardness solid ceramic metal catalyst obtained by mixing and sintering 0 wt %-80 wt % active catalyst material with a support material, wherein the support material is a silica alumina that is a mixed metal oxide and the active catalyst material is at least one of oxides, carbonates, and hydroxides of any kind selected from magnesium (Mg), calcium (Ca), zinc (Zn), titanium (Ti), manganese (Mn), vanadium (V), beryllium (Be), copper r (Cu), zirconium (Zr), strontium (Sr), tin (Sn), and barium (Ba). In addition, the invention provides a method for preparing fatty acid alkyl esters by performing transesterification and esterification of animal and vegetable oils and alcohols in the state where the ceramic metal catalyst is fixed within a reactor without processes for removing and purifying the catalyst. | 05-24-2012 |
Park Jin Hyoung, Incheon KR
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20080236670 | APPARATUS AND METHOD FOR ASSEMBLING A NON-REFILLABLE VALVE UNIT - An approach is provided for preventing refilling of a gas cylinder. A non-refillable apparatus includes a valve housing having a seat formed to receive a valve assembly in which a non-refillable valve member is assembled. The non-refillable valve assembly configured to prevent refill attempt by a pin action to pass a ball through a shelf to a position where the ball can block an incoming flow occurred at opening created within the valve assembly, wherein the shelf is disposed within the valve assembly. | 10-02-2008 |
Seobong Hyoung, Sungnam-Si KR
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20100144619 | Antimicrobial Protein Specific to Staphylococcus Aureus - The present invention relates to a novel bacteriophage-originated protein having antimicrobial activity, more precisely an antimicrobial protein originated from lytic bacteriophage having killing activity specific to | 06-10-2010 |
Yong-Joon Hyoung, Gyeonggi-Do KR
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20100017470 | APPARATUS AND METHODS FOR COMMUNICATION USING ICON - Disclosed are an apparatus and method for communication using an icon. A first communication terminal of a first user stores a second user icon profile including an icon(s) representing at least one communication terminal used by a second user and a second communication terminal of the second user stores a first user icon profile including an icon(s) representing at least one communication terminal used by the first user. When the first user a first icon from the at least one icon forming the second user icon profile, the first user can communication with the second communication terminal of the second user represented by the first icon using the first communication terminal. | 01-21-2010 |