Patents by Inventor Seok-kap Ko
Seok-kap Ko has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9356776Abstract: Disclosed are a key managing system and method for sensor network security. The key managing system includes a secret key transmitter configured to transmit a portion of a secret key map, stored in a node, to a correspondent node, and transmit the secret key map of the node to the correspondent node by using the transmitted portion of the secret key map and an authenticator configured to acquire a trust level of the correspondent node which indicates a ratio of a total size of the secret key map of the node and a size of the secret key map transmitted to the correspondent node, compare the acquired trust level of the correspondent node and a threshold value, and authenticate the correspondent node and a message acquired from the correspondent node by using the comparison result.Type: GrantFiled: April 30, 2014Date of Patent: May 31, 2016Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Seok Kap Ko, Seung Chul Son, Seung Hun Oh, Byung Tak Lee, Young Sun Kim
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Patent number: 9154544Abstract: Provided is a method of supporting CoAP-based sensor data transmission between a sensor data collector in a sensor node relay and one or more 6LoWPAN-unsupported sensor nodes. The method includes receiving a CoAP sensor data request message from the sensor data collector, transmitting a CoAP sensor data request message to a corresponding 6LoWPAN-unsupported sensor node by analyzing the received CoAP sensor data request message, and responding to the sensor data collector by creating a CoAP sensor data response message including sensor data received from one or more of the 6LoWPAN-unsupported sensor nodes.Type: GrantFiled: June 24, 2013Date of Patent: October 6, 2015Assignee: Electronics and Telecommunications Research InstituteInventors: Il-Kyun Park, Sim-Kwon Yoon, Seok-Kap Ko, Byung-Tak Lee, Young-Sun Kim
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Publication number: 20150281116Abstract: There are provided a method for setting a sensor node and setting security in a sensor network, and a sensor network system including the same. A setting apparatus scans a near field communication apparatus included in the sensor node to obtain information on the sensor node. The information on the sensor node is transmitted to a gateway, and the gateway connects the sensor node to the sensor network using the received information on the sensor node.Type: ApplicationFiled: July 21, 2014Publication date: October 1, 2015Inventors: Seok kap KO, Seung-Hun OH, Byung-Tak LEE, Sim-Kwon YOON, Mun Seob LEE, Il kyun PARK, Young Sun KIM
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Publication number: 20150168135Abstract: Provided is an automatic texture recognition apparatus. The automatic texture recognition apparatus includes a light irradiation unit irradiating, to a subject, a light modulation pattern generated according to a synchronization control signal and a pattern control signal; a hybrid optical sensor taking an image of the subject to generate an image input signal; a texture recognition unit using the image input signal to recognize a 2D texture of the subject; and a control unit generating the synchronization control signal and the pattern control signal, wherein the texture recognition unit transmits a process result according to whether the 2D texture of the subject is recognized, the control unit generates the pattern control signal and the synchronization control signal for changing the light modulation pattern according to the process result.Type: ApplicationFiled: May 23, 2014Publication date: June 18, 2015Applicant: Electronics and Telecommunications Research InstituteInventors: Nac Woo KIM, Seung Chul SON, Seok Kap KO, Byung-Tak LEE, Young Sun KIM
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Publication number: 20150139425Abstract: Disclosed are a key managing system and method for sensor network security. The key managing system includes a secret key transmitter configured to transmit a portion of a secret key map, stored in a node, to a correspondent node, and transmit the secret key map of the node to the correspondent node by using the transmitted portion of the secret key map and an authenticator configured to acquire a trust level of the correspondent node which indicates a ratio of a total size of the secret key map of the node and a size of the secret key map transmitted to the correspondent node, compare the acquired trust level of the correspondent node and a threshold value, and authenticate the correspondent node and a message acquired from the correspondent node by using the comparison result.Type: ApplicationFiled: April 30, 2014Publication date: May 21, 2015Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Seok Kap KO, Seung Chul SON, Seung Hun OH, Byung Tak LEE, Young Sun KIM
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Publication number: 20140198713Abstract: Provided is a method of supporting CoAP-based sensor data transmission between a sensor data collector in a sensor node relay and one or more 6LoWPAN-unsupported sensor nodes. The method includes receiving a CoAP sensor data request message from the sensor data collector, transmitting a CoAP sensor data request message to a corresponding 6LoWPAN-unsupported sensor node by analyzing the received CoAP sensor data request message, and responding to the sensor data collector by creating a CoAP sensor data response message including sensor data received from one or more of the 6LoWPAN-unsupported sensor nodes.Type: ApplicationFiled: June 24, 2013Publication date: July 17, 2014Inventors: Il-Kyun PARK, Sim-Kwon YOON, Seok-Kap KO, Byung-Tak LEE, Young-Sun KIM
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Publication number: 20140195559Abstract: Provided are a network device, a controller for controlling at least one network device constituting a software-defined network (SDN), and a network control system. The network control system includes at least one event processing network connected to a central server. The central server is configured to give each of the event processing network an event condition and an instruction describing an operation according to the event condition, and each of the event processing network is configured to analyze sensor data of the event processing network itself or a message received from a surrounding event processing network on the basis of the instruction given by the central server, and perform the operation according to the event condition when the event condition is satisfied.Type: ApplicationFiled: June 19, 2013Publication date: July 10, 2014Inventors: Seok Kap KO, Hong Yeon YU, Il Kyun PARK, Byung Tak LEE, Young Sun KIM
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Publication number: 20140059629Abstract: Two-way broadcast service providing system and method including a media transmission apparatus are provided. The media transmission apparatus includes a data communication interface that receives participant media from at least one participant terminal via a communication network, a media conversion unit that converts the participant media received through the data communication interface in accordance with a broadcast media standard, and a broadcast interface that transmits the participant media converted through the media conversion unit to a broadcast apparatus so that the participant media is included in broadcast contents.Type: ApplicationFiled: June 17, 2013Publication date: February 27, 2014Inventors: Seung-Hun OH, Seok-Kap KO, Sim-Kwon YOON, Byung-Tak LEE, Young-Sun KIM
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Publication number: 20130152118Abstract: The present invention relates to an apparatus and method for obtaining a viewing channel identifier when a user desires to participate in a video broadcast in a channel the user is viewing in a section of an interactive broadcast service. The present invention may include an audio/video receiver to collect broadcast data from a user viewing channel, and extract audio/video data from the collected broadcast data, a sampling unit to sample the extracted audio/video data, a preprocessing unit to encode the sampled audio/video data, and a viewing channel determining unit to compare the encoded audio/video data to audio/video sampling data for N broadcast channels received from a channel identification server, and obtain a viewing channel identifier according to a result of comparison.Type: ApplicationFiled: August 19, 2011Publication date: June 13, 2013Applicant: Electronics and Telecommunications Research InstituteInventors: Seung Hun Oh, Byung Tak Lee, Seok Kap Ko, Nac Woo Kim, Jai Sang Koh
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Publication number: 20130091250Abstract: Disclosed is an intermediate node apparatus for configuring a sensor network and a sensor data processing method using the intermediate node apparatus. The intermediate node apparatus may deliver sensor data measured by a sensor node apparatus to a neighboring node apparatus and may store the sensor data in a database.Type: ApplicationFiled: September 13, 2012Publication date: April 11, 2013Applicant: Electronics and Telecommunications Research InstituteInventors: Seok Kap KO, Seung Hun Oh, Il Kyun Park, Byung Tak Lee, Young Sun Kim
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Publication number: 20130011017Abstract: Provided is a method of obtaining spatial images on demand. The server segments a spatial image into a plurality of regions to detect an isolated region whose continuity with peripheral regions is less than a threshold value, generates geographic information corresponding to the detected isolated region, and generates a capture request message including the generated geographic information. In addition, the capture request message may be transmitted to at least one terminal using unicast scheme, a multicast scheme, an anycast scheme, or a broadcast scheme. The capture request message may comprise a capture condition value such as a capture direction, a capture angle, a capture time, a zoom information and an exposure value. At least one terminal which meets the capture condition value within the capture request message transmits a captured image to the server.Type: ApplicationFiled: June 21, 2012Publication date: January 10, 2013Applicant: Electronics and Telecommunications Research InstituteInventors: Seung Hun OH, Seok Kap Ko, Sim Kwon Yoon, Byung Tak Lee, Young Sun Kim
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Publication number: 20120167140Abstract: Provided is a mobile device for a personalized service including: a media receiving unit acquiring broadcasting contents during expressing in a broadcast viewing terminal device; and a comparing unit generating a media ID based on the broadcasting contents acquired in the media receiving unit, comparing the generated media ID with a media ID in a media ID list received from a media ID server to identify a channel ID, and transmitting a personalized service request message including the identified channel ID and a user ID to a personalized information providing server to request a personalized service.Type: ApplicationFiled: December 21, 2011Publication date: June 28, 2012Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Il Kyun Park, Nac Woo Kim, Seok Kap Ko, Byung Tak Lee, Sim Kwon Yoon, Jai Sang Koh
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Publication number: 20120165040Abstract: Disclosed is a method for locating wireless nodes using difference triangulation, including: storing information transmitted from three or more fixed wireless nodes while moving on a movement path; calculating displacement vectors among three or more measurement points sharing the information of three or more fixed wireless nodes on the movement path; calculating positional information of the mobile wireless node at another measurement point by reflecting the calculated displacement vectors to the positional information of the mobile wireless node calculated at a measurement point of a region where a location of at least one fixed wireless node is known; and calculating positional information of a location-unknown fixed wireless node by the positional information of the mobile wireless node calculated at the three or more measurement points and information received from the location-unknown fixed wireless node.Type: ApplicationFiled: November 15, 2011Publication date: June 28, 2012Applicant: Electronics and Telecommunications Research InstituteInventors: Byung Tak Lee, Seok Kap Ko, Seung Hun Oh, Jai Sang Koh
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Publication number: 20120163289Abstract: A continuous connectivity-lacking network environment-based node apparatus, node management apparatus, communication system, and node management method are provided. The node management apparatus includes a communication unit configured to receive node information from the mobile node through an additional communication network, which is separate from a continuous connectivity-lacking network, and transmit contact information generated by a control unit regarding one or more neighboring nodes of the mobile node to the mobile node via the additional communication network; and the control unit configured to generate the contact information based on the node information received by the communication unit. Accordingly, it is possible for the mobile node to quickly set a communication link and search for any neighboring communicable node.Type: ApplicationFiled: August 17, 2011Publication date: June 28, 2012Applicant: ELECTRONICS AND TELECOMMUNICAIONS RESEARCH INSTITUTEInventors: Seung-Hun Oh, Seok-Kap Ko, Il-Kyun Park, Byung-Tak Lee, Jai-Sang Koh
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Patent number: 8204081Abstract: Disclosed is a system of transporting multimedia based on network, and more particularly, to an apparatus for inserting, transporting and extracting a timestamp through a network protocol. A network timestamp is transported without changing a preset transport standard such as a UDP, an RTP and a MPEG-2 standard by adding a packet having a timestamp, which is used to compensate for network jitter and used for synchronization, to a packet stream transported through a UDP or an RTP.Type: GrantFiled: October 22, 2009Date of Patent: June 19, 2012Assignee: Electronics and Telecommunications Research InstituteInventors: Nac-woo Kim, Byung-tak Lee, Byong-kwon Moon, Seung-hun Oh, Seok-kap Ko, Sim-kwon Yoon, Jai-sang Koh
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Publication number: 20120127994Abstract: A multicast communication method, a multicast communication apparatus and a multicast communication system in a network environment lacking a continuous connectivity. The source node device selects a group leader device which is able to forward data to group member devices belonging to a multicast group, and forwards the data to the selected group leader device, thereby reducing traffic between node devices, improving network reliability and saving the communication cost.Type: ApplicationFiled: November 15, 2011Publication date: May 24, 2012Applicant: Electronics and Telecommunications Research InstituteInventors: Seok-Kap KO, Seung-Hun OH, Byung-Tak LEE, Jai-Sang KOH
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Publication number: 20100135325Abstract: Disclosed is a system of transporting multimedia based on network, and more particularly, to an apparatus for inserting, transporting and extracting a timestamp through a network protocol. A network timestamp is transported without changing a preset transport standard such as a UDP, an RTP and a MPEG-2 standard by adding a packet having a timestamp, which is used to compensate for network jitter and used for synchronization, to a packet stream transported through a UDP or an RTP.Type: ApplicationFiled: October 22, 2009Publication date: June 3, 2010Inventors: Nac-woo Kim, Byung-tak Lee, Byong-Kwon Moon, Seung-huh Oh, Seok-Kap Ko, Sim-Kwon Yoon, Jai-sang Koh