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Chang-Eun

Chang-Eun Choi, Seoul KR

Patent application numberDescriptionPublished
20090193191WRITE AND MERGE METHODS IN MEMORY CARD SYSTEMS FOR REDUCING THE NUMBER OF PAGE COPIES - A memory card system and related write method are disclosed. The method includes receiving a write request for a predetermined page; performing a write operation on a first log block that corresponds to a first data block including the page; receiving an update request for the page; and performing a write operation on a second log block that corresponds to the first data block. The memory card system includes: at least one non-volatile memory including a data block and a log block for updating the data block; and a memory controller controlling an operation of the non-volatile memory. During a write operation for a predetermined page, the controller controls writing of a first log block corresponding to a first data block including the predetermined page, and controls writing of a second log block during an update operation of the predetermined page.07-30-2009
20100153642METHOD AND SYSTEM FOR AUTHENTICATING STORAGE DEVICE CONNECTED THROUGH INTERMEDIATE CONVERTER - A system provided for authenticating a storage device includes a computer system, an intermediate converter and a storage device. The computer system stores an application program to execute functions of a storage device. The intermediate converter connects the computer system and the storage device. The storage device store multiple predetermined sector addresses and an order of the predetermined sector addresses. The computer system authenticates the storage device using the application program and sector data stored at the predetermined sector addresses. The predetermined sector addresses may be predetermined by both the storage device and the application program.06-17-2010
20110035538NONVOLATILE MEMORY SYSTEM USING DATA INTERLEAVING SCHEME - A memory system comprises a plurality of nonvolatile memory devices configured for interleaved access. Programming times are measured and recorded for various memory cell regions of the nonvolatile memory devices, and interleaving units are formed by memory cell regions having different programming times.02-10-2011

Patent applications by Chang-Eun Choi, Seoul KR

Chang-Eun Lee, Daejeon KR

Patent application numberDescriptionPublished
20100057649SYSTEM AND METHOD FOR FAULT PREDICTION IN HOME NETWORK - A system for fault prediction in a home network includes: a context generator for generating context information based on status data collected in real time about components of the home network; a specification interpreter for generating knowledge rules for fault detection by using specifications of the components of the home network; a context analyzer for analyzing if the context information meet the knowledge rules to classify the context information into normal situation contexts and abnormal situation contexts; a context pattern learner for generating new knowledge rules based on the abnormal situation contexts and fault rules corresponding to the abnormal situation contexts; a knowledge rule database for storing and managing the knowledge rules and the new knowledge rules; and a fault predictor for analyzing a correlation between the knowledge rules or the new knowledge rules and the generated context information, thereby predicting faults to be generated.03-04-2010
20100135308INTEGRATED GATEWAY APPARATUS AND COMMUNICATIONS METHOD - 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.06-03-2010
20100138550SHIP-BORNE DEVICE MANAGING METHOD - A ship-borne device managing method includes allocating IP address information to a device when a device configuration information request message is received from the device through a network in a ship system; performing an overlapping test of checking whether the allocated IP address information is currently used in the device; allocating service session information necessary for provision of an application service regarding the device in case where the overlapping test determines that the allocated IP address information is not currently used by the device; and generating a device configuration information response message based on the allocated IP address information and service session information and transmitting the device configuration information response message to the device. The device configuration information request message may include information regarding the device in the form of text or binary.06-03-2010
20100161161APPARATUS FOR INTEGRALLY MANAGING SHIP DEVICE AND METHOD THEREOF - An apparatus for integrally managing a ship includes a device manager for integrally managing different types of local ship devices in the ship by using a standardized protocol message; a local device manager for managing local ship devices in a legacy environment on the basis of an independent local protocol; and an inter-working framework (IWF) for performing translation of a protocol for compatibility between the standardized protocol and the independent local protocol to manage the different types of local ship devices between the device manager and the local device manager. The device manager receives a remote control instruction for remotely maintaining and repairing the local ship device from a remote server connected through a wired/wireless communication network.06-24-2010
20110054691METHOD AND APPARATUS FOR BIRDS CONTROL USING MOBILE ROBOT - Provides is a method including receiving information on a surrounding situation detected by the mobile robot; detecting birds from the received surrounding situation information; allocating a birds control mission to the mobile robot by extracting a birds control pattern corresponding to the surrounding situation; and verifying a result in accordance with performing the allocated birds control mission from the mobile robot. By controlling the birds so as to, in advance, prevent a loss of lives and economical loss which may be caused when the birds collide with airplanes at the airport, it is possible to improve productivity and efficiency of a birds repelling job in an airport and provide construction of a new type of aviation maintenance business model by activating an air traffic control industry through providing a safer airplane operating model while saving operating personnel costs for preventing collision of birds.03-03-2011
20110135189SWARM INTELLIGENCE-BASED MOBILE ROBOT, METHOD FOR CONTROLLING THE SAME, AND SURVEILLANCE ROBOT SYSTEM - A plurality of swarm intelligence-based mobile robots, each having multiple legs and multiple joints, the mobile robot includes: an environment recognition sensor for collecting sensed data about the surrounding environment of the mobile robot; a communication unit for performing communication with a remote controller, a parent robot managing at least one mobile robot, or the other mobile robots located within a predefined area; and a control unit for controlling the motions of the multiple legs and multiple joints to control movement of the mobile robot to a given destination based on control data transmitted from the remote controller through the communication unit or based on communication with the other mobile robots within the predefined area or based on the sensed data collected by the environment recognition sensor.06-09-2011
20110153073FAULT TOLERANCE METHOD AND APPARATUS FOR ROBOT SOFTWARE COMPONENT - An apparatus for performing fault tolerance against a failure occurring during driving robot software components includes: a component executor for executing the robot software components, which are assigned with one thread from an operating system and have a same priority and cycle, by using the assigned thread; and an executor monitor for periodically monitoring the operation of the component executor and determining whether or not there is a failure in the robot software components executed by the component executor. The apparatus further includes: an executor manager for generating the component executor which is assigned with the robot software components having the same priority and cycle and, when the executor monitor determines that there is a failure in the execution of the robot software components, generating a new component executor.06-23-2011

Patent applications by Chang-Eun Lee, Daejeon KR

Chang-Eun Lee, Mapo-Gu KR

Patent application numberDescriptionPublished
20090085136Image sensor and method for manufacturing the same - An image sensor and method of manufacturing the same are provided. The image sensor can comprise a photodiode region an interlayer dielectric, and a microlens. The interlayer dielectric can have a trench over the photodiode region, and the microlens can be disposed in the trench such that the microlens fills the trench.04-02-2009
20100164044IMAGE SENSOR AND MANUFACTURING METHOD THEREOF - An image sensor includes first to fourth image sensing sections symmetrically aligned in a form of a 2×2 matrix, first to fourth pixel arrays aligned in the first to fourth image sensing sections, respectively, in adjacent to each other, and first to fourth peripheral circuit parts aligned at peripheral portions of the first to fourth image sensing sections. A middle-size CMOS image sensor is provided that is suitable for the available field size of conventional photo equipment, so the manufacturing cost may be minimized and price competitiveness may be maximized while providing high-quality images with high pixel resolution.07-01-2010

Patent applications by Chang-Eun Lee, Mapo-Gu KR