Patents Assigned to SNU R&DB Foundation
  • Patent number: 9008150
    Abstract: An interference signal avoiding device of a frequency hopping spread system and a method thereof are disclosed. A method of transmitting/receiving an interference signal avoiding signal according to the present invention includes: determining a frequency hopping channel set and a parameter of an interference signal detector in consideration of characteristics of an interference signal; detecting whether there is an interference signal with respect to frequency hopping candidate channels that are to be used for the next frequency hopping by using the determined interference signal detector; transmitting a signal through a channel that is determined by the interference signal detector that there is no interference signal among the frequency hopping candidate channels; and searching a channel through which the signal is transmitted from the frequency hopping candidate channels in order to receive the transmitted signal.
    Type: Grant
    Filed: December 1, 2011
    Date of Patent: April 14, 2015
    Assignee: SNU R&DB Foundation
    Inventors: Yong-Hwan Lee, Seung-Hwan Lee, Jin-Seok Han
  • Patent number: 9000034
    Abstract: An antibiotic composition including erythorbyl laurate as an active ingredient and a use thereof are disclosed. Erythorbyl laurate is confirmed to have antibiotic effects on Gram-positive bacteria and thus is used as an antibiotic agent in foods, cosmetics, feeds, and the like and utilized in the form of a hand cleaner and other medicines for external application.
    Type: Grant
    Filed: February 28, 2013
    Date of Patent: April 7, 2015
    Assignee: SNU R&DB Foundation
    Inventors: Pahn Shick Chang, Kyung Min Park, Da Eun Lee, Dong Hyun Kang
  • Patent number: 9001517
    Abstract: A flexible conduction trace includes a flexible line; and a plurality of conductive particles arranged in the form of pillars within the flexible line.
    Type: Grant
    Filed: June 20, 2013
    Date of Patent: April 7, 2015
    Assignee: SNU R&DB Foundation
    Inventors: Yongtaek Hong, Sangwoo Kim
  • Patent number: 8989676
    Abstract: An apparatus and method perform Transmit Power Control and Dynamic Frequency Selection (TPC/DFS) during a movement of a Base Station (BS). A network environment around the mobile BS is modeled. Based on the modeling result, a TPC/DFS operation scheme that is most suitable to the mobile BS is selected.
    Type: Grant
    Filed: March 4, 2011
    Date of Patent: March 24, 2015
    Assignees: Samsung Electronics Co., Ltd., SNU R&DB Foundation
    Inventors: Joseph Jeon, Sung-Hyun Choi, Kwang-Hun Han, Dong-Myoung Kim, Du-Ho Kang, Seung-Hyun Choi
  • Publication number: 20150078049
    Abstract: The disclosure relates to an electric power conversion apparatus, and capable of determining a minimum output voltage of a boost converter based on a voltage of the grid, and comparing the minimum output voltage of the converter with an input voltage of the converter, and controlling the operation of the converter based on the comparison result, thereby reducing the unnecessary operation and switching loss of the converter, the electric power conversion apparatus according to the invention comprises a converter; and a control unit configured to detect a grid voltage to determine a minimum output voltage of the converter based on the grid voltage, and control the operation of the converter based on an input voltage of the converter and the determined minimum output voltage.
    Type: Application
    Filed: September 15, 2014
    Publication date: March 19, 2015
    Applicants: SNU R&DB FOUNDATION, LSIS CO., LTD.
    Inventors: Anno YOO, Jung Ik HA, Ho Joon SHIN, Kwon Yub HYUNG
  • Patent number: 8983854
    Abstract: A scale-type nonconstrained health condition evaluating apparatus includes a load cell sensor for sensing a ballistocardiogram signal and a weight signal from a measured person, an electrocardiogram sensor for sensing an electrocardiogram signal from the measured person, and a signal processor for calculating at least one of the heart rate, normalized stroke volume force, blood pressure and equilibrium sense abnormality of the measured person from the ballistocardiogram, weight and electrocardiogram signals sensed by the load cell sensor and the electrocardiogram sensor.
    Type: Grant
    Filed: April 17, 2009
    Date of Patent: March 17, 2015
    Assignee: SNU R & DB Foundation
    Inventors: Kwang Suk Park, Jae Hyuk Shin
  • Patent number: 8984475
    Abstract: Provided is an apparatus and method for generating code overlay capable of minimizing the number of memory copies. A static temporal relationship graph (STRG) is generated in which each of functions of a program corresponds to a node of the STRG and a conflict miss value corresponds to an edge of the STRG. The conflict miss value is the maximum number of possible conflict misses between functions. Overlay is generated by selecting at least one function from the STRG, calculating an allocation cost for each region of a memory to be given when the at least one selected function is allocated, and allocating the at least one selected function to a region that has the smallest allocation cost.
    Type: Grant
    Filed: March 11, 2011
    Date of Patent: March 17, 2015
    Assignees: Samsung Electronics Co., Ltd., SNU R&DB Foundation
    Inventors: Soo-Jung Ryu, Choon-Ki Jang, Jaejin Lee, Bernhard Egger, Young-Chul Cho
  • Patent number: 8980863
    Abstract: The present invention relates to a technology of enhancing sensitivity to radiotherapy using microRNA, more particularly to a radiosensitizer composition comprising at least one selected from the group consisting of microRNA-26b, microRNA-203 and microRNA-200c, an anticancer supplement, and a method for enhancing sensitivity to radiotherapy of cancer cells using the same.
    Type: Grant
    Filed: May 7, 2013
    Date of Patent: March 17, 2015
    Assignee: SNU R&DB Foundation
    Inventors: In-Ah Kim, Bong-Jun Cho, Eun Jung Choi, Hans Hyonchang Kim, David J. Lee
  • Publication number: 20150069352
    Abstract: Provided are an organic light-emitting diode (“OLED”) including a bottom electrode, a top electrode disposed opposite to the bottom electrode, and an organic layer that is interposed between the bottom electrode and the top electrode and includes a hole-transporting host and an electron-transporting host forming an exciplex and a phosphorescent dopant having a triplet energy which is lower than the triplet energy of the hole-transporting host, the triplet energy of the electron-transporting host, and the triplet energy of the exciplex, and a lighting device and a display apparatus including the OLED. Instead of a phosphorescent dopant, the fluorescent dopant having a singlet energy which is lower than the singlet energy of the exciplex may be also used.
    Type: Application
    Filed: April 10, 2013
    Publication date: March 12, 2015
    Applicant: SNU R&DB FOUNDATION
    Inventors: Jang Joo Kim, Young Seo Park, Sung Hun Lee, Kwon Hyeon Kim
  • Patent number: 8971410
    Abstract: A method of processing frames obtained by multiple exposures may include categorizing, by at least one processor, a plurality of frames captured by multiple exposures into one of a reference frame and a target frame, compensating for global motion resulting from motion of a capturing apparatus capturing an object, and compensating for local motion resulting from motion of the object, based on a joint histogram between the reference frame and the target frame.
    Type: Grant
    Filed: May 31, 2011
    Date of Patent: March 3, 2015
    Assignees: Samsung Electronics Co., Ltd., SNU R&DB Foundation
    Inventors: Kyoung Mu Lee, Young Su Moon, Yong Seok Heo, Joon Hyuk Cha, Shi Hwa Lee
  • Publication number: 20150055847
    Abstract: The image reconstruction method includes performing a forward projection of a first image of an object using a line integral-based value and a point spread function (PSF)-based value to acquire a forward projection value, and performing a back projection of raw image data using the forward projection value to acquire a second image of the object.
    Type: Application
    Filed: August 19, 2014
    Publication date: February 26, 2015
    Applicants: SNU R&DB FOUNDATION, SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kye Young JEONG, Byung Kwan PARK, Jae Mock YI, Jae Sung LEE, Hong JUNG, Jung Ah SON
  • Publication number: 20150042312
    Abstract: Disclosed are a biosignal measurement device and a capacitively-coupled active electrode. The capacitively-coupled active electrode includes an electrode face configured to form capacitive coupling with a subject in a non-contact manner to detect a biosignal, and a pre-amplifier disposed on a rear side of the electrode face and embedded in a porous insulator.
    Type: Application
    Filed: August 7, 2014
    Publication date: February 12, 2015
    Applicants: SNU R&DB FOUNDATION, SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Youn Ho KIM, Kun Soo SHIN, Kwang Suk PARK, Jeong Su LEE, Yong Gyu LIM
  • Publication number: 20150042313
    Abstract: An apparatus and method of removing common mode noise in the case of measuring a biosignal using a capacitive coupling active electrode (CCE) is provided. A frequency band of a common mode signal may interact with a shield voltage and thus, a frequency band of a biosignal may be compensated for.
    Type: Application
    Filed: August 7, 2014
    Publication date: February 12, 2015
    Applicants: SNU R&DB FOUNDATION, SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Youn Ho KIM, Jae Min KANG, Kun Soo SHIN, Kwang Suk PARK, Jeong Su LEE, Yong Gyu LIM
  • Patent number: 8951462
    Abstract: Provided is a method of manufacturing porous ceramic bodies with gradient of porosity, in which a gradient that is continuous to a pore size and porosity is precisely controlled in a simple way. The method includes the steps of: obtaining molded bodies by pressurizing and molding a mixture of powder obtained by mixing ceramic powder and polymer powder at a weight ratio of 1:1 to 100:1; and obtaining sintered bodies with gradient of porosity by sintering the molded bodies while applying a gradient pressure to the molded bodies.
    Type: Grant
    Filed: June 19, 2012
    Date of Patent: February 10, 2015
    Assignee: SNU R&DB Foundation
    Inventors: Kug Sun Hong, Ki Tae Nam, Hae Lin Jang, Kyoung Suk Jin, Jingming Xu, Tae-Youl Yang, Jimin Park, Hui-Yun Jeong
  • Patent number: 8953411
    Abstract: Provided are an apparatus and method for imaging a subsurface using frequency-domain reverse-time migration in elastic medium. The subsurface imaging method represents a frequency-domain imaging condition as convolution of measured data and a partial derivative wavefield. That is, the subsurface imaging method applies a back-propagation algorithm to represent an imaging condition as convolution of a virtual source and a back-propagated wavefield. Then, the subsurface imaging method divides a virtual source vector and the back-propagated wavefield represented by a displacement vector into P- and S-wave potentials through Helmholtz decomposition, thereby providing a new imaging condition.
    Type: Grant
    Filed: June 15, 2011
    Date of Patent: February 10, 2015
    Assignee: SNU R&DB Foundation
    Inventor: Changsoo Shin
  • Patent number: 8953725
    Abstract: Provided is a MIMO repeater system including a plurality of repeaters. Each of the repeaters includes: an Rx antenna; a receiver configured to convert a signal received through the Rx antenna into a digital signal; an interference cancellation unit configured to cancel interference from an output signal of the receiver; a transmitter configured to convert an output signal of the interference cancellation unit into an analog signal; and a Tx antenna configured to transmit an output signal of the transmitter, and the interference cancellation to unit provided in each of the repeaters receives the output signal of the receiver as an input signal, receives reference signals provided from the plurality of repeaters as a reference signal vector, outputs a prediction signal according to a current filter coefficient vector generated in response to the input signal and the reference signal vector, and cancels the prediction signal from the input signal.
    Type: Grant
    Filed: October 30, 2013
    Date of Patent: February 10, 2015
    Assignee: SNU R&DB Foundation
    Inventor: Jung Woo Lee
  • Publication number: 20150036545
    Abstract: Disclosed is a self-construction system of a wireless sensor network, and a method for self-construction of a wireless sensor network using the same. Also disclosed is a method for self-construction of a cluster tree structure-based wireless sensor network (WSN). The present invention can connect devices distributed densely in a wide area to a network while maintaining the advantages of a conventional tree-structured network, such as the reduction of time required for network construction, traffic by the exchange of control command messages, and a load for a routing path search, and thus can provide a WSN having an improved self-construction performance.
    Type: Application
    Filed: January 19, 2012
    Publication date: February 5, 2015
    Applicant: SNU R&DB FOUNDATION
    Inventors: Yong-Hwan Lee, Hyung Sin Kim, Seung Hwan Lee
  • Patent number: 8949550
    Abstract: The present invention relates to a coarse-grained reconfigurable array, comprising: at least one processor; a processing element array including a plurality of processing elements, and a configuration cache where commands being executed by the processing elements are saved; and a plurality of memory units forming a one-to-one mapping with the processor and the processing element array. The coarse-grained reconfigurable array further comprises a central memory performing data communications between the processor and the processing element array by switching the one-to-one mapping such that when the processor transfers data from/to a main memory to/from a frame buffer, a significant bottleneck phenomenon that may occur due to the limited bandwidth and latency of a system bus can be improved.
    Type: Grant
    Filed: June 1, 2010
    Date of Patent: February 3, 2015
    Assignee: SNU R&DB Foundation
    Inventors: Ki Young Choi, Kyung Wook Chang, Jong Kyung Paek
  • Patent number: 8947932
    Abstract: Provided is a one-transistor (1T) floating-body DRAM cell device including a substrate; a gate stack which is formed on the substrate; a control electrode which is disposed on the substrate and of which some or entire portion is surrounded by the gate stack; a semiconductor layer which is formed on the gate stack; a source and a drain which are formed in the surface of the semiconductor layer and of which lower surfaces are not in contact with the gate stack; a gate insulating layer which is formed on the semiconductor layer; and a gate electrode which is formed on the gate insulating layer, wherein the remaining portion of the semiconductor layer excluding the source and the drain is configured as a floating body. The miniaturization characteristic and performance of a MOS-based DRAM cell device can be improved, and a memory capacity can be increased.
    Type: Grant
    Filed: February 18, 2010
    Date of Patent: February 3, 2015
    Assignee: SNU R&DB Foundation
    Inventor: Jong-Ho Lee
  • Patent number: 8942509
    Abstract: An apparatus and method creating a ghost-free High Dynamic Range Image (HDRI) based on filtering are provided. It is possible to effectively prevent a ghost phenomenon from occurring when a single HDRI is created from a plurality of LDRIs, by defining a ghost area using a probability based on a global transfer function indicating a relationship for intensities of several frames, rather than searching for or identifying a ghost area in a single or each image.
    Type: Grant
    Filed: June 13, 2011
    Date of Patent: January 27, 2015
    Assignees: Samsung Electronics Co., Ltd., SNU R&DB Foundation
    Inventors: Joon Hyuk Cha, Kyoung Mu Lee, Yong Seok Heo, Young Su Moon, Sang Uk Lee, Shi Hwa Lee