Patents Assigned to Electronics and Telecommunications
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Publication number: 20110225194Abstract: Disclosed herein is an apparatus and method for analyzing information about floating population. The apparatus includes an information collection unit, a data integration unit, a data mining analysis unit, and an interface unit. The information collection unit collects information about locations provided by mobile communication terminals of moving objects, information about attributes of the moving objects, and information about locations and attributes related to stationary objects. The data integration unit creates integrated data by integrating the information collected by the information collection unit, national statistical information, and map data registered previously. The data mining analysis unit extracts data, consistent with conditions input by a system user, from the integrated data, and searches the map data for based moving patterns of the moving objects using data mining analysis. The interface unit provides a map service in which search results have been applied to the map data.Type: ApplicationFiled: March 8, 2011Publication date: September 15, 2011Applicant: Electronics and Telecommunications Research InstituteInventors: In-Sung JANG, Jin-Hyoung PARK, Moon-Soo LEE, Chung-Ho LEE, In-Hak JOO, Min-Soo KIM, Ju-Wan KIM
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Publication number: 20110223716Abstract: Provided are a nonvolatile memory device and a method of fabricating the same, in which a phase-change layer is formed using a solid-state reaction to reduce a programmable volume, thereby lessening power consumption. The device includes a first reactant layer, a second reactant layer formed on the first reactant layer, and a phase-change layer formed between the first and second reactant layers due to a solid-state reaction between a material forming the first reactant layer and a material forming the second reactant layer. The phase-change memory device consumes low power and operates at high speed.Type: ApplicationFiled: May 18, 2011Publication date: September 15, 2011Applicant: Electronics and Telecommunications Research InstituteInventors: Seung Yun LEE, Young Sam PARK, Sung Min YOON, Soon Won JUNG, Byoung Gon YU
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Publication number: 20110225282Abstract: An apparatus for virtualizing network equipment provides at least one virtualized network equipment by virtualizing the network equipment, schedules the pieces of virtualized network equipment, and executes a relevant program. Here, the virtualization apparatus performs context switching according to the scheduling in the time unit of context switching and switches to another program.Type: ApplicationFiled: March 15, 2011Publication date: September 15, 2011Applicant: Electronics and Telecommunications Research InstituteInventors: Jin Ho HAHM, Sung Min Kim
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Publication number: 20110222478Abstract: Provided a method for simultaneously transmitting data frames to a plurality of STAs in a multi-user based wireless communication system. The method includes: requesting sounding or feedback for the plurality of STAs by using a first control information frame containing first group information; receiving responses to the sounding or feedback request; reconfiguring the plurality of STAs composing the first group into a plurality of second groups on the basis of the responses such that the sum of maximum transport streams of the respective STAs composing one group becomes equal to or less than the maximum number of streams transmitted by an AP; transmitting a second control information frame containing second group information on the respective second groups to the plurality of STAs composing the first group; and transmitting data frames by using the second group information.Type: ApplicationFiled: March 11, 2011Publication date: September 15, 2011Applicant: Electronics and Telecommunications Research InstituteInventors: Yu-Ro LEE, Yun-Joo Kim, Jong-Ee Oh, Minho Cheong, Sok-Kyu Lee
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Publication number: 20110221593Abstract: Provided is a method and apparatus for a dynamic lane operation that may determine a number of necessary lanes in a current network state according to an amount of input traffic based on queue information and monitored traffic information for a lane operation in a multi-lane based Ethernet apparatus, and may control the determined number of lanes.Type: ApplicationFiled: October 19, 2010Publication date: September 15, 2011Applicant: Electronics and Telecommunications Research InstituteInventor: Kyeongeun HAN
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Patent number: 8018278Abstract: A pre-distortion apparatus of a power amplifier includes: a pre-distortion unit configured to generate a pre-distorted signal of an input signal by calculating a magnitude of the input signal and outputting a complex correction coefficient corresponding to the calculated magnitude of the input signal, and provide the generated pre-distorted signal as an input of the power amplifier; and a complex correct coefficient update unit configured to generate an error signal by comparing an output signal of the power amplifier with the input signal and updating the complex correction coefficient to minimize a magnitude of the generated error signal, wherein the pre-distortion unit provides a constant bias value corresponding to the magnitude of the input signal as a bias of the power amplifier while updating the complex correction coefficient.Type: GrantFiled: September 16, 2010Date of Patent: September 13, 2011Assignee: Electronics and Telecommunications Research InstituteInventors: Jae-Ho Jung, Gweon-Do Jo, Young-Hoon Kim, Jung-Hoon Oh, Kwang-Chun Lee
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Patent number: 8018595Abstract: Provided is an apparatus for detecting bio materials and a method for detecting bio materials by using the apparatus. The apparatus includes a bio material reacting unit, an optical source unit, and a detecting unit. The bio material reacting unit includes bio sensing materials immobilized on gold nanoparticles. The optical source unit emits light toward the bio material reacting unit. The detecting unit measures variations of surface absorbance of the gold nanoparticles by detecting light transmitted through the bio material reacting unit before and after a bio material is bound to the bio sensing materials.Type: GrantFiled: March 18, 2009Date of Patent: September 13, 2011Assignee: Electronics and Telecommunications Research InstituteInventors: Chul Huh, Kyung Hyun Kim, Hyunsung Ko, Wanjoong Kim, Gun Yong Sung, Seon-Hee Park, Bong-Kyu Kim
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Patent number: 8017268Abstract: Provided is a lithium secondary battery including a discharge unit capable of delaying or preventing a battery explosion. The lithium secondary battery includes a discharge unit disposed parallel to a battery body. The discharge unit includes a first electrode connected to a positive electrode of the battery body, a second electrode connected to a negative electrode of the battery body, and a discharge material film, disposed between the first electrode and the second electrode, inducing a abrupt discharge above a predetermined temperature. The discharge material film, e.g., a abrupt metal-insulator transition (MIT) material film can induce a abrupt discharge, thereby preventing or delaying a battery explosion.Type: GrantFiled: January 12, 2006Date of Patent: September 13, 2011Assignee: Electronics and Telecommunications Research InstituteInventors: Hyun-Tak Kim, Doo-Hyeb Youn, Byung-Gyu Chae, Kwang-Yong Kang, Bong-Jun Kim, Yong-Wook Lee, Sun-Jin Yun, Jung-Wook Lim, Gyung-Ock Kim, Sung-Lyul Maeng
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Patent number: 8017420Abstract: Provided is a method of forming optical waveguide. The method includes forming a trench on a semiconductor substrate to define an active portion, and partially oxidizing the active portion. An non-oxidized portion of the active portion is included in a core through which an optical signal passes, and an oxidized portion of the active portion is included in a cladding.Type: GrantFiled: June 25, 2009Date of Patent: September 13, 2011Assignee: Electronics and Telecommunications Research InstituteInventors: In-Gyoo Kim, Dong-Woo Suh, Gyung-Ock Kim
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Patent number: 8019865Abstract: There are provided a network security state visualization device and method, the device including: a security event collector collecting original security event information from network security apparatuses; a security event analyzer analyzing the original security event information collected by the security event collector and extracting characteristic data corresponding to a security event; and a three-dimensional visualization display unit visualizing a correlation between the characteristic data extracted by the security event analyzer as a three-dimensional screen to be displayed.Type: GrantFiled: October 24, 2007Date of Patent: September 13, 2011Assignee: Electronics and Telecommunications Research InstituteInventors: Beom Hwan Chang, Chi Yoon Jeong, Seon Gyoung Sohn, Soo Hyung Lee, Hyo Chan Bang, Geon Lyang Kim, Hyun Joo Kim, Won Joo Park, Jong Ho Ryu, Jong Hyun Kim, Jung Chan Na, Jong Soo Jang, Sung Won Sohn
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Patent number: 8018829Abstract: Provided is an orthogonal frequency division multiplexing (OFDM) apparatus using a 3-dimensional (3D) signal constellation. The apparatus performs 2D inverse fast Fourier transform on a set of 3D subchannel signals that is mapped by a signal constellation including signal points distributed on the surface of a 3D sphere.Type: GrantFiled: July 17, 2009Date of Patent: September 13, 2011Assignees: Electronics and Telecommunications Research Institute, Industry & Academic Cooperation Foundation Gyeongsang National UniversityInventors: Eun Chang Choi, Jae Doo Huh, Seon Geun Kang
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Patent number: 8019300Abstract: Provided are a multi-channel tuning receiver, including: a broadband radio frequency (RF) tuner to receive a broadband signal, divide the broadband signal into a plurality of signals, tune the divided signals, combine the tuned signals into a single signal, and output the combined single signal; an analog-to-digital (A/D) converter to convert the combined single signal to digital signal; a channelizer to extract only a bonded channel from the digital signal; and a plurality of demodulators to demodulate the bonded channel, and a multi-channel tuning method thereof.Type: GrantFiled: November 18, 2008Date of Patent: September 13, 2011Assignee: Electronics and Telecommunications Research InstituteInventors: Yang Su Kim, Han Seung Koo, Doh-Wook Kim, Yun Jeong Song, Soo In Lee
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Patent number: 8019021Abstract: A device and a method for estimating a Carrier to Interference-plus-Noise Ratio (CINR) in an Orthogonal Frequency Division Multiplexing (OFDM) system are provided. The CINR estimating method includes receiving a preamble symbol and transmitting subcarrier transmitted from a base station, calculating an interference power and noise power using the preamble symbol and transmitting subcarrier, calculating a receive power used for the base station to transmit a preamble and data symbol, estimating a preamble CINR value using an interference power, a noise power, and a receive power, calculating the noise power from a subcarrier not transmitting a preamble, and calculating an average CINR of data subcarriers using the preamble CINR value and the noise power. Accordingly, a precise CINR can be estimated using a preamble when the preamble power is amplified in comparison with the data symbol power.Type: GrantFiled: August 18, 2006Date of Patent: September 13, 2011Assignees: Samsung Electronics Co., Ltd, Electronics and Telecommunications Research Institute, KT Corporation, SK Telecom Co., Ltd, Hanaro Telecom, Inc.Inventors: Yu-Ro Lee, Dong-Seung Kwon
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Patent number: 8018267Abstract: Provided is a frequency conversion mixer. The frequency conversion mixer includes a transconductance stage, a switching stage, a load stage, a current bleeding circuit, and a bias stage. The transconductance stage receives an RF signal, and outputs a current corresponding to a voltage of the RF signal. The switching stage switches the current which is outputted from the transconductance stage in response to a local oscillation signal, for frequency conversion the RF signal into an intermediate frequency (IF) signal. The load stage is connected between the switching stage and a supply voltage terminal. The current bleeding circuit is connected parallel with the switching stage, especially, embodying inverter structure with transconductance stage to get not only current bleeding effect but also current reuse effect, and one resonant inductor for reducing noise which is generated in parasitic capacitance at node between transconductance stage and switching stage.Type: GrantFiled: June 18, 2010Date of Patent: September 13, 2011Assignees: Electronics and Telecommunications Research Institute, Industry-University Cooperation Foundation Hanyang Univ.Inventors: Yun-mo Kang, Tae-yeoul Yun, Hee-woo An, Chang Sun Kim, Yea Chul Roh, Seong Hoon Choi
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Patent number: 8017045Abstract: Provided is a composition for an oxide semiconductor thin film and a field effect transistor (FET) using the composition. The composition includes from about 50 to about 99 mol % of a zinc oxide (ZnO); from about 0.5 to 49.5 mol % of a tin oxide (SnOx); and remaining molar percentage of an aluminum oxide (AlOx). The thin film formed of the composition remains in amorphous phase at a temperature of 400° C. or less. The FET includes an active layer formed of the composition and has improved electrical characteristics. The FET can be fabricated using a low-temperature process without expensive raw materials, such as In and Ga.Type: GrantFiled: December 10, 2008Date of Patent: September 13, 2011Assignee: Electronics and Telecommunications Research InstituteInventors: Doo Hee Cho, Shin Hyuk Yang, Chun Won Byun, Chi Sun Hwang, Hye Yong Chu, Kyoung Ik Cho
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Patent number: 8018380Abstract: There is a provided a system for measuring an antenna radiation pattern in a Fresnel region, including: a fixed antenna and a movable antenna located in the Fresnel region to acquire a far-field radiation pattern; a moving unit for moving upward or downward to adjust a measuring angle of the movable antenna; a rotation unit to rotate a rotation shaft horizontally; a vector network analyzing unit for outputting an radio frequency (RF) signal to one of the fixed antenna and the movable antenna as a transmission antenna, receiving the RF signal received through the other one of the fixed antenna and the movable antenna as a receiving antenna, and detecting a complex value; a control and communication unit for controlling the vector network analyzing unit and a control unit, and performing a data communication; and the control unit for providing a vertical/horizontal rotation force to the moving unit and the rotation unit under a control of the control and communication unit.Type: GrantFiled: April 10, 2007Date of Patent: September 13, 2011Assignee: Electronics and Telecommunications Research InstituteInventors: Soon-Soo Oh, Je-Hoon Yun, Jung-Ick Moon, Joung-Myoun Kim, Yong-Heui Cho
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Patent number: 8019729Abstract: Provided is a system and method for updating a plurality of the same files consistently. The file update system comprises a first and a second data servers formed as pipe line type network for storing an original file and a duplicate file of the original file respectively, and for updating both the original file and the duplicate file in response to an update request, wherein the first and the second data servers mutually exchange file update information, correct the file update information so as to prevent overlapped update due to a plurality of update requests for the same file, and then update the original file or the duplicate file according to the corrected file update information.Type: GrantFiled: August 7, 2008Date of Patent: September 13, 2011Assignee: Electronics and Telecommunications Research InstituteInventors: Myung-Hoon Cha, Sang-Min Lee, Young-Kyun Kim, June Kim, Myung-Joon Kim
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Method for requesting and reporting channel quality information in wireless portable internet system
Patent number: 8018911Abstract: A method for requesting and reporting channel quality information (CQI) in a wireless portable Internet system is disclosed. Timing of a channel quality information request by a base station is determined, existence of an automatic repeat request acknowledgment (ARQ_ACK) message of downlink data is determined on requesting the channel quality information from the subscriber station, the automatic repeat request acknowledgment message and the radio resource for the channel quality report to the subscriber station is allocated, the automatic repeat request acknowledgment message and the channel quality report information is received, and a modulating and coding level of downlink data is determined by extracting the channel quality report information from the automatic repeat request acknowledgment message.Type: GrantFiled: February 2, 2005Date of Patent: September 13, 2011Assignees: Electronics and Telecommunications Research Insitiute, Samsung Electronics Co., Ltd, KT Corporation, SK Telecom Co., Ltd, KT Freetel Co., Ltd, Hanaro Telecom, Inc.Inventors: Chul-Sik Yoon, Jae-Heung Kim, Kun-Min Yeo, Soon-Yong Lim, Byung-Han Ryu -
Patent number: 8018169Abstract: Disclosed is a field emission device. The field emission device includes: an anode substrate including an anode electrode formed on a surface thereof and a fluorescent layer formed on the anode electrode; a cathode substrate disposed opposite to and spaced apart from the anode substrate, and including at least one cathode electrode formed toward the anode substrate and a field emitter formed on each cathode electrode; and a gate substrate having one surface in contact with the cathode substrate, wherein the gate substrate include gate insulators surrounding the field emitters and having a plurality of openings exposing the field emitters, and a plurality of gate electrodes formed on the gate insulators around the openings and electrically isolated from one another.Type: GrantFiled: March 27, 2007Date of Patent: September 13, 2011Assignee: Electronics and Telecommunications Research InstituteInventors: Jin Woo Jeong, Yoon Ho Song, Dae Jun Kim
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Publication number: 20110215908Abstract: Disclosed are a radio secure reader and a radio secure tag for supporting a secure mode and a normal mode. The radio secure reader for controlling an operation mode of the radio secure tag may include a reader modem to receive the operation mode from the radio secure tag, and a reader processing unit to identify the received operation mode as a normal mode or a secure mode, and to control the radio secure tag based on the identified operation mode.Type: ApplicationFiled: March 7, 2011Publication date: September 8, 2011Applicant: Electronics and Telecommunications Research InstituteInventors: Sang Yeoun LEE, Heyung Sub LEE, You Sung KANG, Kang Bok LEE, Su Na CHOI, Hyun Seok KIM, Dong Beom SHIN, Doo Ho CHOI