Song, Daejeon-Si
Chi Jung Song, Daejeon-Si KR
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20110285015 | BUMP STRUCTURE AND FABRICATION METHOD THEREOF - There is provided a bump structure for a semiconductor device, comprising a metal post formed on and electrically connected to an electrode pad on a substrate, a solder post formed on the top surface of the metal post, said solder post having the same horizontal width as the metal post and the top surface of the solder post being substantially rounded, and an intermetallic compound layer disposed at the interface between the metal post and the solder post. An oxide layer formed on the solder post prevents solder post under reflow from being changed into a spherical shape. An intermetallic compound layer may be formed by an aging process at the interface between the metal post and the solder post. The bump structure can realize fine pitch semiconductor package without a short between neighboring bumps. | 11-24-2011 |
Myoung Soo Song, Daejeon-Si KR
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20150236534 | BALANCING DEVICE AND METHOD - Provided are balancing device and method which can achieve a balancing function between energy storage units connected in series using a small number of switch elements, thereby reducing the manufacturing cost and size and enabling various balancing modes. The balancing device for balancing between a plurality of energy storage units a battery module, in which the energy storage units are connected in series, includes: a transformer; and a switch network comparing a cell switch unit, a polarity switch unit, and au auxiliary switch unit, wherein the auxiliary switch unit includes: a first auxiliary switch unit for connecting a second common node to one terminal of the secondary winding of the transformer; and a second auxiliary switch unit for connecting a first common node to the other terminal of the secondary winding of the transformer. | 08-20-2015 |
Pyeong-Jung Song, Daejeon-Si KR
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20100151920 | METHOD OF OPERATING BASE STATION WITH LOW POWER CONSUMPTION - Provided is a method of reducing power consumption of a base station. A method of operating a base station with low power consumption in a mobile communication system includes: reporting status information about a level of traffic being served by a base station in an active mode to an apparatus for managing power consumption of the base station; and switching from the active mode to an inactive mode in response to a mode change command from the apparatus. | 06-17-2010 |
20130100853 | APPARATUS AND METHOD FOR RECOGNIZING TARGET MOBILE COMMUNICATION TERMINAL - A method and apparatus for a mobile communication terminal to recognize a target mobile communication terminal using a location recognition system. The method includes acquiring own location information of the mobile communication terminal; creating identification verification information using the location information, the identification verification information containing an identification formula for identifying the target mobile communication terminal as a target of communication; transmitting the created identification verification information to at least one other mobile communication terminal within a communication coverage area; receiving an identification response packet from the at least one other mobile communication terminal which has received the identification verification information, the identification response packet indicating whether the other mobile communication terminal is a target mobile communication terminal; and determining the target mobile communication terminal based on the received identification response packet. | 04-25-2013 |
Seok-Woo Song, Daejeon-Si KR
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20140337849 | APPARATUS AND JOB SCHEDULING METHOD THEREOF - An apparatus and a job scheduling method are provided. For example, the apparatus is a multi-core processing apparatus. The apparatus and method minimize performance degradation of a core caused by sharing resources by dynamically managing a maximum number of jobs assigned to each core of the apparatus. The apparatus includes at least one core including an active cycle counting unit configured to store a number of active cycles and a stall cycle counting unit configured to store a number of stall cycles and a job scheduler configured to assign at least one job to each of the at least one core, based on the number of active cycles and the number of stall cycles. When the ratio of the number of stall cycles to a number of active cycles for a core is too great, the job scheduler assigns fewer jobs to that core to improve performance. | 11-13-2014 |
20140359335 | MULTI-CORE APPARATUS AND JOB SCHEDULING METHOD THEREOF - A multi-core apparatus includes cores each including an active cycle counting unit configured to store an active cycle count, and a stall cycle counting unit configured to store a stall cycle count. The multi-core apparatus further includes a job scheduler configured to determine an optimal number of cores in an active state based on state information received from each of the cores, and adjust power to maintain the optimal number of cores. | 12-04-2014 |
20150143383 | APPARATUS AND JOB SCHEDULING METHOD THEREOF - An apparatus and a job scheduling method are provided. For example, the apparatus is a multi-core processing apparatus. The apparatus and method minimize performance degradation of a core caused by sharing resources by dynamically managing a maximum number of jobs assigned to each core of the apparatus. The apparatus includes at least one core including an active cycle counting unit configured to store a number of active cycles and a stall cycle counting unit configured to store a number of stall cycles and a job scheduler configured to assign at least one job to each of the at least one core, based on the number of active cycles and the number of stall cycles. When the ratio of the number of stall cycles to a number of active cycles for a core is too great, the job scheduler assigns fewer jobs to that core to improve performance. | 05-21-2015 |
Soon-Yong Song, Daejeon-Si KR
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20140334398 | APPARATUS AND METHOD FOR CONTROLLING RADIO RESOURCE ALLOCATION FOR LOW POWER SENSOR COMMUNICATION SERVICE - A method for controlling radio resource allocation for a low power sensor communication service by a relay coordinator. The method may include configuring a frame that includes a Contention Access Period (CAP) offset and a Contention Free Period (CFP) offset of variable sizes, and an Relay Period (RP) that relays data between a Personal Area Network (PAN) coordinator and one or more lower hierarchical devices; and generating a beacon frame that includes information of the frame configuration, and transmitting the beacon frame to the one or more lower hierarchical devices; and transmitting data, which is received from the one or more lower hierarchical devices through the CFP, to the PAN coordinator through the RP, or transmitting data, which is received from the PAN coordinator through the RP, to lower hierarchical nodes through the CFP. | 11-13-2014 |
Yoon-Seon Song, Daejeon-Si KR
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20140362971 | X-RAY DISTRIBUTION ADJUSTING FILTER, CT APPARATUS AND METHOD THEREOF - An X-ray distribution adjusting filter, and a CT apparatus and method thereof are provided, in which the X-ray distribution adjusting filter has a hollow inner part, and when rotating, a shape thereof is changed according to rotation angles, such that intensity distribution of X-rays radiating toward a subject may be adjusted. | 12-11-2014 |
Yoo Seung Song, Daejeon-Si KR
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20120095673 | APPARATUS AND METHOD FOR PROVIDING DRIVING INFORMATION FOR VEHICLES BASED ON HIGH SPEED MOVEMENT LONG DISTANCE IMPUSE RADIO ULTRA WIDEBAND - An apparatus for providing driving information for a vehicle based on high speed movement long distance impulse radio-ultra wideband (IR-UWB) is provided. The apparatus includes an IR-UWB module configured to generate a packet based on high speed movement long distance IR-UWB, transmit the generated packet, and interpret a received packet and a controller operationally coupled to the IR-UWB module. The controller is configured for the step of estimating a distance between an own vehicle and a different vehicle, estimating a relative location of the own vehicle with respect to the different vehicle based on the distance and generating driving information including the distance and the relative location. | 04-19-2012 |
20120127318 | SURVEILLANCE SYSTEM USING WIRELESS NETWORK, MASTER SENSOR NODE, AND SERVER APPARATUS - A surveillance system includes a sensor node, a master sensor node and a server. The sensor node firstly determines whether an event occurs based on self-event information and supplementary event information received from the plurality of sensors. The master sensor node receives the occurrence of the event from the sensor node, and secondly determines whether the event occurred based on the self-event information and the supplementary event information. The server receives whether the event occurs from the master sensor node. The occurrence of the event can be autonomously detected and determined among the sensor node, the master sensor node, and the server. | 05-24-2012 |
20140240174 | METHOD AND APPARATUS FOR DETERMINING NON-LINE OF SIGHT (NLOS) AROUND A GPS RECEIVER - Provided are a method and device for determining a non-line of sight (NLOS) state around a GPS receiver. The method may include collecting, from at least one satellite, satellite information including a direction angle, a signal to noise (SNR), and an altitude, selecting a satellite of which the NLOS state is to be determined based on an altitude value of the collected satellite information, and determining whether the selected satellite is in the NLOS state with respect to a direction to the satellite based on the SNR and direction angle included in the satellite information of the selected satellite. According to the present invention, by reducing a location calculation error that occurs due to a distance measurement error when a location is measured, a more precise result of location measurement can be obtained. | 08-28-2014 |