Patents by Inventor Kyu Jeong

Kyu Jeong 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).

  • Publication number: 20080177941
    Abstract: Provided is a method of managing memory in a multiprocessor system on chip (MPSoC). According to an aspect of the present invention, locality of memory can be reflected and restricted memory resources can be efficiently used by determining a storage location of a variable or a function which corresponds to a symbol with reference to a symbol table based on memory access frequency of the variable or the function, comparing the determined storage location and a previous storage location, and copying the variable or the function stored in the previous storage location to the determined storage location if the determined storage location is different from the previous storage location.
    Type: Application
    Filed: September 13, 2007
    Publication date: July 24, 2008
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Keun Soo Yim, Jeong-Joon Yoo, Young-sam Shin, Seung-won Lee, Han-cheol Kim, Jae-don Lee, Min-kyu Jeong
  • Publication number: 20080175275
    Abstract: A time synchronization method between nodes in a network and an apparatus for implementing the same, the time synchronization method including: measuring a value of a propagation time from a slave node to a master node using a time stamp for each of one or more predetermined time units; calculating an estimate of an actual propagation time using the one or more measured values and a sliding window; and computing an offset using a message transmission time corresponding to a sending of a message from the master node, a message receipt time corresponding to an arrival of the message at the slave node, and the estimate of the actual propagation time.
    Type: Application
    Filed: August 28, 2007
    Publication date: July 24, 2008
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Geoffrey M. GARNER, Cornelis Johannis Den Hollander, Hong Kyu Jeong
  • Publication number: 20080168210
    Abstract: A method and apparatus for managing a memory are provided. It is possible to rapidly recover the area allocated or desired to be returned by easily recognizing a range of the area allocated or desired to be returned over the entire area of the memory by recognizing an original area of a predetermined memory chunk interrupted by a neighboring memory chunk among a series of memory chunks that make up the memory by considering an original area of the neighboring memory chunk and by recovering the predetermined memory chunk and the recognized area to their original areas, when the area allocated to or returned by an application program is interrupted.
    Type: Application
    Filed: December 20, 2007
    Publication date: July 10, 2008
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jae-don Lee, Seung-won Lee, Jeong-joon Yoo, Young-sam Shin, Min-kyu Jeong, Keun-soo Yim
  • Publication number: 20080168460
    Abstract: Provided is a method and apparatus for preventing a stack overflow in an embedded system. The method of preventing a stack overflow includes: reading a maximum stack usage of at least one function for executing a requested operation from maximum stack usages of functions provided from a kernel, which are stored in advance; and processing the requested operation on the basis of the read maximum stack usage of the at least one function and a size of a usable region in a stack for the requested operation. Accordingly, the stack overflow can be prevented without generating a run-time overhead.
    Type: Application
    Filed: January 3, 2008
    Publication date: July 10, 2008
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Seung-won Lee, Han-cheol Kim, Young-sam Shin, Min-kyu Jeong, Keun-soo Yim, Jeong-joon Yoo, Jae-don Lee
  • Publication number: 20080168455
    Abstract: A scheduling method, medium and apparatus are provided. In the scheduling method, medium and apparatus, it is possible to prevent the possibility that the order between the priorities of the tasks represented by the expired timers and the tasks requested by the interrupt is reversed while also not deteriorating the performance of a real time operating system (RTOS), even though the number of timers expired when the interrupt occurs or that are already expired before the interrupt occurs is large, by selecting a timer for representing a point of time corresponding to a point of time when an interrupt occurs from among one or more timers each of which representing a task, a point of time assigned to the tasks, and a priority assigned to the task and executing a task represented by the selected timer and one or more tasks requested by the interrupt in order of priority.
    Type: Application
    Filed: December 19, 2007
    Publication date: July 10, 2008
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jae-don Lee, Seung-won Lee, Jeong-joon Yoo, Young-sam Shin, Min-kyu Jeong, Keun-soo Yim
  • Publication number: 20080165770
    Abstract: A method and apparatus transmitting and receiving in a real-time system are disclosed. The method of transmitting in a real-time system includes scheduling a task included in a socket based on a predetermined transmission option designated to the socket, and transmitting a packet generated by the scheduled task based on the predetermined transmission option, so that real-time communications of a network communication can be secured and resources of the system can be efficiently used, thereby, transmitting and receiving data according to the required characteristics of transmission and reception.
    Type: Application
    Filed: November 7, 2007
    Publication date: July 10, 2008
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Young-sam Shin, Seung-won Lee, Han-cheol Kim, Jeong-joon Yoo, Jae-don Lee, Min-kyu Jeong, Keun-soo Yim
  • Publication number: 20080128676
    Abstract: Provided are a Phase-change Random Access Memory (PRAM) device and a method of manufacturing the same. In particular, a PRAM device including a heating layer, wherein the heating layer comprises first and second heating layers having different physical properties from each other and a method of manufacturing the same are provided. Since the PRAM device according to the present invention includes a heating layer having optimal heating characteristics, a PRAM device having high reliability and excellent operating characteristics can be manufactured.
    Type: Application
    Filed: December 5, 2007
    Publication date: June 5, 2008
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Seung-Yun Lee, Young Sam Park, Sung Min Yoon, Kyu-Jeong Choi, Nam-Yeal Lee, Byoung-Gon Yu
  • Publication number: 20080126561
    Abstract: A proximity control method for transmitting a content and a network node using the proximity control method is provided. A proximity control method for transmitting a content performs a different proximity control mechanism depending on each of a single proximity control (SPC) domain, a mixed proximity control (MPC) domain, and a network-based service domain, and each of nodes performs the different proximity control mechanism based on a physical distance from a neighboring node, the nodes being comprised in the SPC domain, the MPC domain, and the network-based service domain.
    Type: Application
    Filed: July 20, 2007
    Publication date: May 29, 2008
    Inventors: Hyun-Surk Ryu, Geoffrey M. Garner, Cornelis Johannis Den Hollander, Fei Fei Feng, Hong-Kyu Jeong
  • Publication number: 20080112433
    Abstract: An audio/vide bridging (AVB) system using an extended AVB reservation protocol, and a resource reservation method are provided wherean AVB system using an extended AVB reservation protocol includes an egress device for transmitting a Generic Attribute Registration Protocol (GARP) or Multiple Registration Protocol (MRP) message comprising an AVB stream identifier or an application stream identifier to a relay device, the relay device for registering the AVB stream identifier or the application stream identifier according to the GARP/MRP message, and transmitting the GARP/MRP message comprising the application stream identifier, to an ingress device, and the ingress device for allocating the AVB stream identifier corresponding to the application stream identifier via the GARP/MRP message comprising the application stream identifier, and transmitting a reservation signal to the relay device.
    Type: Application
    Filed: July 10, 2007
    Publication date: May 15, 2008
    Inventors: Fei Fei Feng, Cornelis Johannis Den Hollander, Hyun Surk Ryu, Hong Kyu Jeong
  • Publication number: 20080090875
    Abstract: A 1,2,4-triazole derivative of formula 1 or a non-toxic salt thereof, a preparation method thereof, and a pharmaceutical composition containing the derivative or the salt as an active ingredient are provided.
    Type: Application
    Filed: November 25, 2003
    Publication date: April 17, 2008
    Applicant: CJC Corporation
    Inventors: Il Hwan Cho, Myeong Yun Chae, Young Hoon, Kyu Jeong Yeon, Chun Seon Lyu, Jong Hoon Kim, Sung Hak Jung, Sang Wook Park, Hyung Chul Ryu, Ji Young Noh, Hyun Jung Park, Jie Eun Park, Young Mee Chung
  • Publication number: 20080054740
    Abstract: A radial core type double rotor brushless direct-current motor is provided in which a double rotor structure is employed with inner and outer rotors which are doubly disposed and thus a stator core is completely divided. The motor includes a rotational shaft which is rotatably mounted on a housing of an apparatus, cylindrical inner and outer yokes which are rotatably mounted on the center of the housing, inner and outer rotors including a number of magnets which are mounted with the opposing polarities on the outer surface of the inner yoke and the inner surface of the outer yoke, and a number of cores assemblies which are installed between the inner and outer rotors in which a number of coils are wound around a number of division type cores, respectively.
    Type: Application
    Filed: October 31, 2007
    Publication date: March 6, 2008
    Inventors: Pyung Kim, Kyu Jeong, Hyung Song, Sang Lee
  • Publication number: 20080022184
    Abstract: Provided is a method of transmitting an Ethernet frame via a network bridge, the method includes receiving a frame header from a previous node connected to the network bridge; receiving a header cyclic redundancy check (CRC) flag and header CRC with respect to the frame header from the previous node; determining whether to forward the Ethernet frame including the frame header by referring to the header CRC flag and the header CRC; and forwarding the Ethernet frame from the previous node to a next node connected to the network bridge according to the determination.
    Type: Application
    Filed: November 2, 2006
    Publication date: January 24, 2008
    Inventors: Hong Kyu Jeong, Geoffrey M. Garner, Hyun Surk Ryu
  • Publication number: 20080008200
    Abstract: Provided are a guaranteed services method and apparatus in bridged LAN. streams are transmitted through bridges to a plurality of listener stations in a distributed network, and each bridge performs filtering, stream group registration and authentication for the streams. Accordingly, quality of service (QoS) in a distributed network can be improved. Furthermore, streams to the plurality of listener stations can be guaranteed.
    Type: Application
    Filed: July 18, 2007
    Publication date: January 10, 2008
    Inventors: Hong-kyu Jeong, Byung-suk Kim, Fei fei Feng
  • Publication number: 20070294571
    Abstract: A system of recording or reading data are discussed. According to an embodiment, the system includes: a host device transmitting a write or read command and data to be written or receiving data based on the read command; and a recording/reproducing device, operatively coupled to the host device via interface, controlling a write or read operation in response to the write or read command the from the host device. The recording/reproducing device includes, a pickup for writing or reading data to or from medium, and a controller for determining whether the data requires a real time recording or producing, controlling a recording or reading operation such that a defective block is replaced with a spare block of the spare area, based upon the determination.
    Type: Application
    Filed: August 17, 2007
    Publication date: December 20, 2007
    Inventors: Yong Park, Myong-Gu Lee, Jong Shin, Kyu Jeong
  • Publication number: 20070294569
    Abstract: A recording medium and apparatus and method for managing defective areas are discussed. According to an embodiment a controller determining whether or not to replace a defective block with a replacement block when a writing or reading data to or from the optical recording medium, based upon a data type to be written or read, and creating a defect list, the defect list including information to indicate whether or not the defective block is replaced with a replacement block; and a writing reading unit, coupled to the controller, to write or read the data to or from the optical recording medium and storing the defect list to a defect management area of the optical recording medium, according to a control of the controller.
    Type: Application
    Filed: August 17, 2007
    Publication date: December 20, 2007
    Inventors: Yong Park, Myong Lee, Jong Shin, Kyu Jeong
  • Publication number: 20070263509
    Abstract: A method for real time recording and playback of data to and from an optical recording medium, and a method for managing a file thereof is disclosed. In the present invention, the host controls real time data writing by providing a signal requesting for information on a defective area to the device for recording/playback of data to/from an optical disk before providing a write command. Accordingly, the write command is generated such that data is not written on the defective areas, based upon the returned information on the defective area. Alternatively, the host may first provide a write command to the device for recording/playback of data to/from an optical disk, upon which information on defective areas is returned. Thus, the host generates and provides a new write command such that data is not written on a defective area based upon the returned information on the defective area.
    Type: Application
    Filed: April 27, 2007
    Publication date: November 15, 2007
    Inventors: Yong Park, Kyu Jeong, Jong Shin
  • Patent number: 7280755
    Abstract: In this application, the invention is a novel heuristic mechanism of working path and backup path reservation for highly utilizable WDM mesh networks, which we call dynamic-network adapted cost selection (DAC-selection) mechanism. One of its characteristics is simple traffic distribution mechanism, and the performance of DAC-selection mechanism is superior to that of Random selection (R-selection) and Advanced Combined Min-cost selection (ACM-selection) mechanism. DAC-selection mechanism provides simple cost function by assigning proper weights to each component of the cost function and the total cost is obtained by just summing up the individual cost. Therefore, it is possible to select a best pair of working path and backup path which consumes least wavelength for reservation.
    Type: Grant
    Filed: September 26, 2003
    Date of Patent: October 9, 2007
    Inventors: Minho Kang, Hong Kyu Jeong
  • Publication number: 20070173010
    Abstract: An embedded memory required for a high performance, multifunction SOC, and a method of fabricating the same are provided. The memory includes a bipolar transistor, a phase-change memory device and a MOS transistor, adjacent and electrically connected, on a substrate. The bipolar transistor includes a base composed of SiGe disposed on a collector. The phase-change memory device has a phase-change material layer which is changed from an amorphous state to a crystalline state by a current, and a heating layer composed of SiGe that contacts the lower surface of the phase-change material layer.
    Type: Application
    Filed: December 4, 2006
    Publication date: July 26, 2007
    Inventors: Seung-Yun Lee, Sangouk Ryu, Sung Yoon, Young Park, Kyu-Jeong Choi, Nam-Yeal Lee, Byoung-Gon Yu
  • Publication number: 20070115780
    Abstract: A recording medium and a method for recording are provided. The recording medium according to an embodiment includes a control information used to represent a recording capacity of the recording medium, wherein the control information includes first information associated with a pre-defined recording capacity of the recording medium, and second information associated with a varied recording capacity of the recording medium, the second information being recorded at a position different from the first information.
    Type: Application
    Filed: January 12, 2007
    Publication date: May 24, 2007
    Inventors: Yong Park, Kyu Jeong
  • Publication number: 20070109935
    Abstract: An optical recording medium and a method for recording information are provided. The optical recording medium having a user area and a spare area, includes a control information stored on a particular area of the optical recording medium, wherein the control information includes an initial recording capacity information stored on a particular area of the optical recording medium, wherein the initial recording capacity information pertains to the user area of the optical recording medium, and the initial recording capacity information is varied based upon at least one of an assignment or expansion of the spare area for defect management, the spare area being assigned to an inner area and/or an outer area of the optical recording medium, or being expanded toward an inner direction from the outer area, and wherein the stored recording capacity information is updated to correspond to the varied recording capacity when the initial recording capacity is varied.
    Type: Application
    Filed: January 12, 2007
    Publication date: May 17, 2007
    Inventors: Yong Park, Kyu Jeong