Patents Assigned to Electronics and Telecommunications
  • Publication number: 20120109969
    Abstract: A system and method for data analysis and digital forensics is provided. The system for data analysis and digital forensics may include: an online data forensic server for collecting and analyzing usage history information from an object device, which is subject to data collection, downloading and collecting data on the Internet based on the usage history information, requesting issuance of a timestamp token for the collected data, and receiving the issued timestamp token; a timestamp token issuing server for issuing the timestamp token for the collected data in response to the request for issuance of the timestamp token and proving the issued timestamp token to the online data forensic server; and a storage device for storing the collected data.
    Type: Application
    Filed: October 26, 2011
    Publication date: May 3, 2012
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Youn Hee GIL, Joo Young LEE, Su Hyung JO, Young Soo KIM, Keon Woo KIM, Sang Su LEE, Woo Yong CHOI, Sung Kyong UN, Do Won HONG, Hyun Sook CHO
  • Publication number: 20120106559
    Abstract: In a plurality of virtual tunnel routers including a first virtual tunnel router and a second virtual tunnel router, the first virtual tunnel router and the second virtual tunnel router request virtual network prefix information from a tunnel mapping controller. When the tunnel mapping controller generates virtual network prefix information of the first virtual tunnel router and the second virtual tunnel router, respectively, and transmits the same along with information of a list of adjacent virtual tunnel routers, the first virtual tunnel router and the second virtual tunnel router create a tunnel. With the tunnel established, the virtual network prefix information received by the first virtual tunnel router and second virtual tunnel router, respectively, is linked so that direct communication can be performed between the first virtual tunnel router and the second virtual tunnel router.
    Type: Application
    Filed: September 16, 2011
    Publication date: May 3, 2012
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Sun Cheul KIM, Seong Moon, Seungwoo Hong, Ho Sun Yoon, Ho Yong Ryu
  • Patent number: 8170153
    Abstract: Disclosed is a binary signal modulator for minimizing deterioration of receiving performance caused by phase error. The binary signal modulator receives binary signals, and converts the binary signals into complex symbols according to a predetermined mapping relation. Here, the mapping relation is generated when a plurality of mapping symbols are arranged on a plurality of trajectories so that the distance between the mapping symbols is greater than or equal to a predetermined distance and the phase between the mapping symbols is greater than or equal to a predetermined angle from among the trajectories starting from a plurality of points on the complex plane, and a distance between the trajectories is greater than or equal to the minimum distance from among the distances between the points.
    Type: Grant
    Filed: December 14, 2007
    Date of Patent: May 1, 2012
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Byung-Jae Kwak, Nah-Oak Song, Dong-Seung Kwon
  • Patent number: 8169376
    Abstract: The present invention relates to base station transmitting and receiving antennas and control methods thereof. For this purpose, the present invention provides a control method of a base station transmitting antenna. The control method includes collecting positional information and transmission level values of all terminals in a cell; analyzing statistics of cell traffic using the positional information and transmission level values, and generating antenna radiation patterns on the basis of the analyzed statistics result; optimizing the antenna radiation patterns by synthesizing beam patterns; and changing antenna beam patterns according to the optimized antenna radiation patterns. According to embodiments of the present invention, it is possible to increase a channel capacity in a cell, ensure the QoS in all terminals in the cell, and reduce installation and operation costs of a base station system.
    Type: Grant
    Filed: May 30, 2008
    Date of Patent: May 1, 2012
    Assignee: Electronics and Telecommunication Research Institute
    Inventors: Soon Young Eom, Moon Man Hur, Young Bae Jung, Soon Ik Jeon, Ic Pyo Hong
  • Patent number: 8169917
    Abstract: Disclosed herein are a Tandem Connection Monitoring (TCM) method in an MPLS network and a data structure of a Multi-Protocol Label Switching (MPLS) OAM packet for TCM. When data are provided to users through an LSP path comprising multiple network provider in an MPLS network, the method makes it possible to independently measure LSP performance at a user level, a service provider level, and a network provider level, detect quality degradation of ingress signals by measuring performance of a preceding network, and newly measure the performance quality at the current network regardless of the performance quality of the preceding network.
    Type: Grant
    Filed: November 30, 2007
    Date of Patent: May 1, 2012
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Kyung Gyu Chun, Soon Seok Lee
  • Patent number: 8169006
    Abstract: Provided is a bio-sensor chip. The bio-sensor chip includes a sensing part, a board circuit part, a channel part, and a cover. In the sensing part, a target material and a detection material interact with each other to detect the target material. The board circuit part is electrically connected to the sensing part. The channel part provides a solution material containing the target material into the sensing part. The cover is coupled to the board circuit part to cover the channel part and the sensing part.
    Type: Grant
    Filed: September 16, 2009
    Date of Patent: May 1, 2012
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Taeyoub Kim, Jong-Heon Yang, Chang-Geun Ahn, Chan Woo Park, Chil Seong Ah, Ansoon Kim, In Bok Baek, Gun Yong Sung, Seon Hee Park
  • Patent number: 8170523
    Abstract: A low power super regenerative receiver and a method of reducing the power consumption of the low power super regenerative receiver are provided. The super regenerative receiver includes: an oscillator having a start-up time period starting oscillation that varies according to an existence of an input signal; and a power controller supplying power within the start-up time period of the oscillator.
    Type: Grant
    Filed: December 12, 2008
    Date of Patent: May 1, 2012
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Hoyong Kang, Xiaohua Yu, Ji Eun Kim, Trung Kien Nguyen, Dae Young Yoon, Nae Soo Kim, Cheol Sig Pyo, Seok Kyun Han, Sang Gug Lee
  • Patent number: 8170324
    Abstract: There are provided an apparatus and method for vision processing on a network based intelligent service robot system and a system using the same. A robot can move to a target object, avoiding obstacles without helps of a robot server interfaced with a robot terminal over network, by extracting/processing three-dimensional distance information of external objects, using a stereo camera, a low price image processing dedicated chip and an embedded processor. Therefore, the intelligent robot can travel and move using only a stereo camera image processing without other sensors, and further provides users with various functional services with low expense.
    Type: Grant
    Filed: December 15, 2005
    Date of Patent: May 1, 2012
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Jae Il Cho, Seung Min Choi, Dae Hwan Hwang
  • Patent number: 8170475
    Abstract: Provided are a non geostationary satellite orbit (NGSO) communication apparatus that extends an operation time using an ancillary territory component (ATC) and reduces a number of satellites, and an ATC and an operating method thereof. The NGSO communication apparatus extends an operation time using an ATC and reduces a number of satellites from a first ATC that communicates with a mobile earth station (MES), and a second ATC that communicates with the first ATC to relay data between the MES and the satellite when the first ATC is unable to communication with the satellite revolving along an orbit.
    Type: Grant
    Filed: April 21, 2009
    Date of Patent: May 1, 2012
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Dae Sub Oh, Do-Seob Ahn, Ho Jin Lee
  • Patent number: 8170574
    Abstract: A method and apparatus for controlling interference between cells for non-real time data transfer in a mobile communication network is provided. The method of controlling interference between cells in a mobile communication system including a plurality of cells includes: dividing each cell into at least one segment based on density of terminals within each cell and distance from the center of each cell; allocating rise over thermal (RoT) with respect to each segment based on the distance from the center of each cell, an attenuation ratio according to the distance, and a shadowing factor; and providing data services to terminals within each segment according to the allocated RoT. Accordingly, it is possible to improve system throughput.
    Type: Grant
    Filed: September 14, 2009
    Date of Patent: May 1, 2012
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Hyung-sub Kim, Yeon-seung Shin, Sang-woo Nam
  • Patent number: 8169975
    Abstract: Provided is a method for reserving a propagation time by estimating a channel environment in a wireless personal area network. The method includes the steps of: a) measuring a propagation range to the reception station upon starting data transaction with the reception station; b) measuring an average Strength Signal (ARSS) for determining a final transfer speed upon checking a transfer speed corresponding to the propagation range to the measured reception station based on a pre-defined table; c) determining a final transfer speed based on the transfer speed corresponding to the propagation range to the reception station according to a result that the measured ARSS is compared with Upper Bound RSS (URSS) and Lower Bound RSS (LRSS); and d) reserving a next propagation time according to the determined final transfer speed.
    Type: Grant
    Filed: November 28, 2007
    Date of Patent: May 1, 2012
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Junwhan Kim, Jae-Doo Huh
  • Patent number: 8170246
    Abstract: Provided are an apparatus and a method for reproducing a surround wave field using wave field synthesis. The apparatus includes an audio signal analyzer for analyzing a received multi-channel audio signal to check the number of audio signal channels, and extracting a sound source signal for each checked channel from the multi-channel audio signal; a wave field synthesis renderer for localizing the extracted sound source signal for each channel at a virtual sound image outside a narrow space using wave field synthesis so that the extracted sound source signal is suitable for the number of the checked audio signal channels; and an audio reproducer for reproducing the localized virtual sound source signal.
    Type: Grant
    Filed: July 8, 2008
    Date of Patent: May 1, 2012
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Jae-hyoun Yoo, Dae-Young Jang, Hwan Shim, Hyunjoo Chung, Jun-Seok Lim, Koeng-Mo Sung, Tae-Jin Lee, Kyeongok Kang, Jin-Woong Kim, Chieteuk Ahn
  • Patent number: 8170471
    Abstract: A cooperative communication method for vehicular communication is provided. The method in which when one vehicle transmits a signal to another vehicle, a signal of a transmission vehicle passes through a roadside device or a plurality of vehicles and thereafter signals having a plurality of paths are transmitted to a reception vehicle, and the reception vehicle combines and demodulates the signals received through the plurality of paths.
    Type: Grant
    Filed: December 4, 2009
    Date of Patent: May 1, 2012
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Woong Cho, Hyun Seo Oh, Dong Yong Kwak
  • Patent number: 8170089
    Abstract: Provided is an apparatus for channel equalization in frequency domain, including: a channel estimation unit for estimating a channel on received signal from outside, a channel matched filter for changing channel characteristic of the channel estimated by the channel estimation unit and the received signal to channel characteristic to meet condition required for noncausal filtering, a noncausal filter for changing the channel characteristic changed by the channel matched filter from nonminimum phase channel to minimum phase channel, a reverse channel calculation unit for calculating a reverse of the channel changed by the noncausal filter in frequency domain, and a frequency domain equalization unit for performing channel equalization with respect to the channel changed by the noncausal filter in the frequency domain by using the reverse obtained by the reverse channel calculation unit as coefficients of the frequency domain equalization apparatus.
    Type: Grant
    Filed: December 26, 2005
    Date of Patent: May 1, 2012
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Sung-Ik Park, Seung-Won Kim, Soo-In Lee, Sang-Won Son, You-Seok Lee, Hyoung-Nam Kim
  • Patent number: 8170147
    Abstract: An apparatus and method for canceling a DC offset efficiently removes the DC offset by calculating the DC offset after acquiring synchronization in a terminal receiver used for an orthogonal frequency division multiplexing system. The apparatus for canceling the DC offset includes an adding/averaging unit (130), an accumulator (140), a synchronization determiner (150), and a pulse density modulation signal generator (160). The adding and averaging the added input data signals over one frame. The accumulator (140) outputs a DC offset control value by successively accumulating the DX offsets calculated from the adding and averaging unit. The synchronization determiner (150) determines whether to output the DC offset control value provided by the accumulator (140) based on synchronization information. The pulse density modulation signal generator (160) generates a digital pulse density modulation signal based on a representative value provided by the synchronization determiner (150).
    Type: Grant
    Filed: September 6, 2005
    Date of Patent: May 1, 2012
    Assignees: Samsung Electronics Co., Ltd., Electronics and Telecommunications Research Institute, KT Corporation, SK Telecom Co., Ltd., KTFreetel Co., Ltd., Hanaro Telecom, Inc.
    Inventors: Yong-Su Lee, Youn-Ok Park, Eon-Young Hong
  • Patent number: 8170015
    Abstract: An integrated gateway apparatus includes a policy storage for storing therein a first information on message filtering and switching policies for messages received from heterogeneous devices in lower networks via network interfaces; a device management unit for extracting a second information on the messages, the devices and the network interfaces; a layer-basis filter unit for performing, based on the first and the second information, the message filtering and switching on the messages on a layer basis; and an integrated switch management unit for providing the first information to the layer-basis filter unit and controlling the layer-basis filtering unit. The layer-basis filter unit includes a switch filter unit, a route filter unit and a gateway filter unit for performing the message filtering and switching in a MAC layer, in a network layer and a transport layer and in an application layer, respectively.
    Type: Grant
    Filed: August 27, 2009
    Date of Patent: May 1, 2012
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Kwangil Lee, Jun Hee Park, Chang Eun Lee, Kyeong Deok Moon
  • Patent number: 8171273
    Abstract: A method and apparatus for reconfiguring software in a software-based wireless terminal when a new wireless communication service is to be carried out is provided. The method of reconfiguring software at a software defined radio (SDR) terminal including one or more reconfigurable elements, includes: indentifying program installation time and program startup time with respect to the respective reconfigurable elements, selecting a reconfigurable element from the one or more reconfigurable elements based on the program installation time and the program startup time, and placing a program on the selected reconfigurable element. Accordingly, time for installing a new wireless communication service can be reduced in the SDR mobile communication terminal. Thus, convenience can be provided to a user.
    Type: Grant
    Filed: September 1, 2009
    Date of Patent: May 1, 2012
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Hyung-deug Bae, Nam-hoon Park
  • Patent number: 8170470
    Abstract: Provided are an on-channel repeater for repeating an output signal the same as an input signal on channel by removing feedback signals caused by low isolation of a transmission/reception antenna by converting a transmitted Radio Frequency (RF) signal into a signal of a predetermined band and subtracting a replica of the feedback signal from the converted signal, and by compensating for channel distortion of a reception signal by estimating an inverse of reception channel from a signal acquired by removing the feedback signal, and an on-channel repeating method.
    Type: Grant
    Filed: November 9, 2007
    Date of Patent: May 1, 2012
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Sung-Ik Park, Heung-Mook Kim, Ho-Min Eum, Jae-Hyun Seo, Jae-Young Lee, Yong-Tae Lee, Jong-Soo Lim, Soo-In Lee
  • Patent number: 8171521
    Abstract: A system and method for managing a network by value-based estimation is provided. A network device requesting communication is defined as an active point and a network device receiving a request for communication is defined as a passive point. A value of a network device is determined according to the number of active points connected to the corresponding network device, and a value of a network device that is in a path of communication between network devices is determined based on a value of a network device passing through the corresponding network device. When a policy for changing a network environment is transferred in a state where the values of the network devices have been estimated, a policy conflict test is performed on the basis of the estimated values of the network devices, thereby determining application of the policy in due consideration of the values and significance of the network devices.
    Type: Grant
    Filed: February 29, 2008
    Date of Patent: May 1, 2012
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Young Han Choi, Hyoung Chun Kim, Tae Ghyoon Kim, Do Hoon Lee, Eungki Park
  • Patent number: 8169010
    Abstract: Provided are an image sensor and a method of sensing the same. The image sensor includes: a light receiving device; a signal conversion unit including a transfer transistor having a plurality of transfer gates and for converting photocharges generated by the light receiving device into a voltage to output the voltage; and a sensing control unit for generating at least two reset signals and/or at least two transfer signals applied to the transfer gates of the transfer transistor during a one-time photosensing cycle. The image sensor is obtained by changing the structure and driving method of a transfer transistor of a typical 4-transistor CMOS image sensor and employs a deep depletion operation and a multiple reset operation, thereby reducing an image lag and increasing the well capacity of the light receiving device.
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: May 1, 2012
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Mi Jin Kim, Bong Ki Mheen, Young Joo Song, Seong Su Park