Patents Assigned to Electronics and Telecommunications
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Patent number: 8261611Abstract: A method for analyzing a gait pattern includes: measuring, by a plurality of force sensing resistor (FSR) sensors, foot pressure values, and outputting the measured foot pressure values, respectively; searching for a maximum pressure local area in which the sum of the output values from the FSR sensors included in each of a plurality of pressure local areas is maximized; calculating a center of pressure (COP) with respect to the detected maximum pressure local area; and analyzing a gait pattern by adding the calculated COP to the trajectory of COPs.Type: GrantFiled: December 15, 2010Date of Patent: September 11, 2012Assignee: Electronics and Telecommunications Research InstituteInventors: Min Ho Kim, Ho Youl Jung, Jae Won Jang, Sa Kwang Song, Soo Jun Park
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Patent number: 8263426Abstract: Provided is a high-sensitivity MEMS-type z-axis vibration sensor, which may sense z-axis vibration by differentially shifting an electric capacitance between a doped upper silicon layer and an upper electrode from positive to negative or vice versa when center mass of a doped polysilicon layer is moved due to z-axis vibration. Particularly, since a part of the doped upper silicon layer is additionally connected to the center mass of the doped polysilicon layer, and thus an error made by the center mass of the doped polysilicon layer is minimized, it may sensitively respond to weak vibration of low frequency such as seismic waves. Accordingly, since the high-sensitivity MEMS-type z-axis vibration sensor sensitively responds to a small amount of vibration in a low frequency band, it can be applied to a seismograph sensing seismic waves of low frequency which have a very small amount of vibration and a low vibration speed.Type: GrantFiled: July 24, 2009Date of Patent: September 11, 2012Assignee: Electronics and Telecommunications Research InstituteInventors: Sang Choon Ko, Chi Hoon Jun, Byoung Gon Yu, Chang Auck Choi
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Patent number: 8266638Abstract: Disclosed is a composite service control system resolving a conflict. A triggering condition of a new application that requests a registration is determined. When the determined triggering condition overlaps with a triggering condition of an existing registered application, determinations are made whether an intersection between an explicit conflict set of the new application and an explicit conflict set of the existing application exists and whether an intersection between an implicit conflict set of an API of the new application and an implicit conflict set of an API of the existing application exists; and The triggering condition and execution information of the existing application is reported. When either of the intersections exists, a defining of a conflict resolution policy or a changed application triggering condition for the new application is requested; otherwise the triggering condition and the execution information of the new application is stored in an information database.Type: GrantFiled: December 16, 2009Date of Patent: September 11, 2012Assignee: Electronics and Telecommunications Research InstituteInventors: Jaecheol Sim, Kee Seong Cho
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Patent number: 8264268Abstract: Provided is an offset-voltage calibration circuit. The circuit includes a comparator configured to receive at least two comparison voltages and output a result of a comparison between the comparison voltages, an up/down counter (UDC) configured to output an up-counting or down-counting output signal in response to an output signal of the comparator, and a current digital-to-analog converter (DAC) configured to control the amount of current supplied from a node to which the comparison voltage is applied, in response to the output signal of the UDC and control the magnitude of the comparison voltage.Type: GrantFiled: July 26, 2010Date of Patent: September 11, 2012Assignee: Electronics and Telecommunications Research InstituteInventors: Young Kyun Cho, Young Deuk Jeon, Jae Won Nam, Jong Kee Kwon
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Patent number: 8264332Abstract: An apparatus and a method for demodulating a subcarrier tag signal in a radio frequency identification (RFID) reader is provided. The apparatus for demodulating the subcarrier tag signal in the RFID reader may include: an edge signal generation unit receiving a subcarrier tag signal and generating an edge signal with respect to the tag signal; an edge information extraction unit extracting edge information from the generated edge signal; and a decoding unit decoding the tag signal using the extracted edge information.Type: GrantFiled: January 5, 2009Date of Patent: September 11, 2012Assignee: Electronics and Telecommunications Research InstituteInventors: Ji-Hoon Bae, Donghan Lee, Won Kyu Choi, Cheng-Hao Quan, Gil Young Choi, Jong-Suk Chae
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Patent number: 8265564Abstract: Disclosed is an apparatus and method for transmitting data in a wireless communication system. The apparatus for transmitting a packet data in a wireless communication system includes a Media Access Control (MAC) layer for determining the number of preambles to be inserted based on a feed-back reply signal from a receiver, and generating a multi-preamble aggregation packet by inserting the determined number of preambles into packets received from an upper layer and a physical layer for forming the multi-preamble aggregation packet generated in a data processing unit, by using a physical layer packet, and transmitting the formed multi-preamble aggregation packet.Type: GrantFiled: September 9, 2009Date of Patent: September 11, 2012Assignee: Electronics and Telecommunications Research InstituteInventors: Il-Gu Lee, Yun-Joo Kim, Hae-Young Na, Sok-Kyu Lee
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Patent number: 8265204Abstract: The present invention relates to a decoding device and method for a MIMO system. A linear process is applied to a received signal vector by using a channel matrix estimated from the received signal vector and a poly-diagonalized matrix, and a soft decision value is acquired through a trellis decode by using the linear process result. Since the linear preprocess is performed by using the poly-diagonalized matrix, it is possible to receive a MIMO signal having good packet error rate performance and less complexity. Also, since the tail-biting trellis decoding method is used based on the poly-diagonalized matrix that is generated by poly-diagonalizing the effective channel matrix during the process for eliminating the signal interference, the soft decision value for the symbol can be generated with a simple hardwired device and less operation complexity.Type: GrantFiled: May 19, 2008Date of Patent: September 11, 2012Assignee: Electronics and Telecommunications Research InstituteInventors: Eun-Young Choi, Chan Ho Yoon, Jung Bo Son, Hun Sik Kang, Sok-Kyu Lee, Seok Hyun Yoon
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Patent number: 8265155Abstract: Provided is a method for partitioning a block in inter prediction including selecting one standard reference frame from at least one reference frame which is a comparison target in inter prediction, searching whether or not a higher-level macroblock of a current frame is partitioned based on the selected standard reference frame, determining a partition size of the higher-level macroblock of the current frame, searching whether or not the higher-level macroblock in which the partition size is determined is partitioned by comparing with any certain reference frame other than the standard reference frame, and stopping a block size search on the higher-level macroblock of the current frame if a partition size of the higher-level macroblock of the current frame determined by comparing with the standard reference frame and a partition size of the higher-level macroblock of the current frame determined by comparing with the certain reference frame are different from each other.Type: GrantFiled: September 24, 2009Date of Patent: September 11, 2012Assignee: Electronics and Telecommunications Research InstituteInventors: Ig Kyun Kim, Kyoung Seon Shin, Seong Mo Park, Nak Woong Eum
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Publication number: 20120224620Abstract: The present invention relates to an apparatus and a method for receiving data using a low-density parity check (LDPC) decoding scheme in a digital broadcasting system. The method comprises calculating a parity check matrix of a trellis coded modulation symbol from data that is received via an antenna; transforming the calculated parity check matrix into a low-density parity check matrix; decoding the data having been received via the antenna, based on the transformed low-density parity check matrix; and recovering the data having been received via the antenna.Type: ApplicationFiled: August 10, 2010Publication date: September 6, 2012Applicant: Electronics and Telecommunications Research InstituteInventors: Sung-Ik Park, Heung-Mook Kim
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Publication number: 20120224655Abstract: A data transmitting apparatus performs symbol mapping on each of first and second input data to generate a plurality of first and second modulation data symbols, performs inverse fast Fourier transform (IFFT) on the plurality of first and second modulation data symbols to convert the same into first and second real signals of a time domain from a frequency domain, angle-modulates the first and second real signals, and transmits the same to a data receiving apparatus. Thus, a peak-to-average power ratio (PAPR) can be lowered, while the same data transfer amount as that of the general OFDM data transmitting apparatus is maintained.Type: ApplicationFiled: March 2, 2012Publication date: September 6, 2012Applicant: Electronics and Telecommunications Research InstituteInventor: Jong Soo LIM
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Publication number: 20120222944Abstract: An RF MEMS switch using a fine liquid metal droplet is provided. The RF MEMS switch using a fine liquid metal droplet includes: a first layer member having a signal transmission line; a second layer member disposed on the first layer member, and having a chamber formed corresponding to the signal transmission line so as to induce a change in the shape of the fine liquid metal droplet and a through hole formed at one side of the chamber so as to bring the fine liquid metal droplet, whose shape is to be changed in the chamber, into contact or non-contact with the signal transmission line; an operating member disposed on the second layer member, and provided at an open side of the chamber so as to provide deformability to the fine liquid metal droplet through the open side of the chamber; and a third layer member for defining the position of the operating member, and coupled to the first layer member and the second layer member.Type: ApplicationFiled: November 10, 2010Publication date: September 6, 2012Applicants: POSTECH ACADEMY-INDUSTRY FOUNDATION, Electronics and Telecommunications Research InstituteInventors: Joonwon Kim, Seong-Ho Son, Soon Young Eom, Usung Park, Seungbum Baek
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Publication number: 20120225500Abstract: Provided are a transparent nonvolatile memory thin film transistor (TFT) and a method of manufacturing the same. The memory TFT includes source and drain electrodes disposed on a transparent substrate. A transparent semiconductor thin layer is disposed on the source and drain electrodes and the transparent substrate interposed between the source and drain electrodes. An organic ferroelectric thin layer is disposed on the transparent semiconductor thin layer. A gate electrode is disposed on the organic ferroelectric thin layer in alignment with the transparent semiconductor thin layer. Thus, the transparent nonvolatile memory TFT employs the organic ferroelectric thin layer, the oxide semiconductor thin layer, and auxiliary insulating layers disposed above and below the organic ferroelectric thin layer, thereby enabling low-cost manufacture of a transparent nonvolatile memory device capable of a low-temperature process.Type: ApplicationFiled: May 11, 2012Publication date: September 6, 2012Applicant: Electronics and Telecommunications Research InstituteInventors: Sung Min YOON, Shin Hyuk Yang, Soon Won Jung, Seung Youl Kang, Doo Hee Cho, Chun Won Byun, Chi Sun Hwang, Byoung Gon Yu, Kyoung Ik Cho
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Publication number: 20120226831Abstract: Provided are a memory system and an integrated management method for a plurality of direct memory access (DMA) channels. The memory system includes a memory controller exchanging data with a memory and having a plurality of channels physically separated from each other, and a DMA controller having a plurality of DMA channels physically separated from each other and in contact with the plurality of channels of the memory controller, and exchanging data with the memory via the plurality of DMA channels and the memory controller.Type: ApplicationFiled: May 14, 2012Publication date: September 6, 2012Applicant: Electronics and Telecommunications Research InstituteInventors: Ik Jae CHUN, Chun Gi Lyuh, Se Wan Heo, Sang Hun Yoon, Tae Moon Roh, Jong Kee Kwon, Jong Dae Kim
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Patent number: 8259645Abstract: A random access channel operating method in a mobile communication system is provided. The random access channel operating method includes: (a) selecting a transmission mode according to a load of random access channel and performing transmission to a mobile terminal; (b) receiving a message having a format corresponding to the selected transmission mode from the mobile terminal; (c) determining whether or not a preamble or data is included in the message received in (b) receiving of the message; and (d) if the data is determined to be included in the (c) determining, transmitting a response message for data reception to the mobile terminal. Accordingly, use efficiency of a random access channel can be increased by measuring a system load of the random access channel in a base station and changing a transmission format of a burst transmitted through the random access channel according to the measured load level.Type: GrantFiled: April 3, 2007Date of Patent: September 4, 2012Assignee: Electronics and Telecommunications Research InstititeInventors: Kwang-Jae Lim, Sung-Kyung Kim, Chul-Sik Yoon, Jee-Hwan Ahn
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Patent number: 8259102Abstract: A method for producing a 3D facial animation using a single facial video stream, includes producing a representative joint focused on a major expression producing element in a 3D standard facial model, producing a statistical feature-point model of various facial expressions of different people in the 3D standard facial model, moving each feature-point of the statistical feature-point model by tracking a change in facial expressions of the video stream, calculating a transformation coefficient of the representative joint corresponding to a variation of the feature-point of the 3D standard facial model, and producing a 3D facial animation by applying the calculated transformation coefficient to transform the representative joint.Type: GrantFiled: December 16, 2008Date of Patent: September 4, 2012Assignee: Electronics and Telecommunications Research InstituteInventors: Seong Jae Lim, Jeung Chul Park, Chang Woo Chu, Ho Won Kim, Ji Young Park, Bon Ki Koo
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Patent number: 8260154Abstract: Disclosed are a digital equalization apparatus for a coherent optical receiver and a digital equalization method for a coherent optical receiver, capable of compensating for chromatic dispersion and polarization impairment through a digital signal processing, and capable of performing a clock recovery and a data recovery through a digital symbol synchronization. The digital equalization apparatus and the method compensate for various impairments occurring on an optical path in a digital manner and achieve synchronization through a simple structure.Type: GrantFiled: December 21, 2009Date of Patent: September 4, 2012Assignee: Electronics and Telecommunications Research InstituteInventors: Sun-hyok Chang, Hwan-seok Chung, Kwang-joon Kim
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Patent number: 8259697Abstract: A transmission method performed by a mobile station for random access channel (RACH) burst transmission diversity gain is provided. According to the method, a variety of combinations of a time switching transmit diversity (TSTD) technique, a frequency hopping technique, and a power ramping technique that are robust against fading channel environments are applied to transmission of an RACH burst, thereby increasing the probability of detecting an RACH signature of a base station. Also, by using the transmission parameters (subband frequencies, transmission antennas, power, etc.) which are used for successful transmission of an RACH burst, for transmission of a successive user packet data, reliable transmission of the successive user packet data can be performed.Type: GrantFiled: April 19, 2007Date of Patent: September 4, 2012Assignees: Electronics and Telecommunications Research Institute, Samsung Electronics Co., LtdInventors: Hyo-Seok Yi, Il-Gyu Kim, Young-Jo Ko, Kapseok Chang, Hyeong-Geun Park, Young-Hoon Kim, Seung-Chan Bang
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Patent number: 8260294Abstract: There is provided a method of processing Internet Protocol (IP) handoff of a mobile node in a network system, in which the IP handoff is processed distinguishing a signal packet path for the IP handoff from a data packet path the method including receiving a registration request message when the mobile node moves to an arbitrary mobile agent, the message received from the mobile node via the mobile agent to which the mobile node moves; transmitting the received registration request message to a mobile agent where the mobile node is previously located, without change, according to whether an entry with respect to the mobile node exists in preset visitor list; and transmitting a registration reply message with respect to the registration request message to the mobile agent without change.Type: GrantFiled: October 29, 2007Date of Patent: September 4, 2012Assignee: Electronics and Telecommunications Research InstituteInventors: Sung Soo Kang, Sang-Kwon Kim
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Patent number: 8259921Abstract: A method of processing a number portability call, the method including: transmitting a call request message to a donor network server based on dialed number information of a called terminal; receiving a response message according to number portability of the called terminal from the donor network server, in correspondence to the call request message; detecting routing number information of the called terminal based on the dialed number information, according to reception of the response message; and performing call setup to a recipient network server associated with the called terminal based on at least one of the dialed number information and the routing number information is provided.Type: GrantFiled: October 21, 2008Date of Patent: September 4, 2012Assignee: Electronics and Telecommunications Research InstituteInventors: Young Sic Jeong, Chang Min Park
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Patent number: 8259646Abstract: An apparatus and method for acquiring reliable frame synchronization performance and frequency synchronization simultaneously in a communication system includes a differential correlator outputting a result value obtained by performing a differential operation based on an input signal having symbol timing synchronization and a value pre-defined with a sender sending the input signal, a frequency error calculator compensating for a frequency error based on the result value of the differential correlator and a frequency compensation control signal, and a frame synchronization determiner outputting the frequency compensation control signal if the result value of the differential correlator is greater than a threshold set having at least one value. By introducing a correlation scheme, i.e.Type: GrantFiled: December 3, 2007Date of Patent: September 4, 2012Assignee: Electronics and Telecommunications Research InstituteInventors: Pan-Soo Kim, Dae-Ig Jang, Deock-Gil Oh, Ho-Jin Lee