Patents by Inventor Seo-Won Kwon

Seo-Won Kwon 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).

  • Patent number: 8036188
    Abstract: Disclosed is a frame structure in a high-speed wireless personal area network (WPAN) and a message transmitting method thereof which enable communications among devices existing in different piconets by using a device that provides a bridging function in the IEEE 802.15.3 WPAN. In a high-speed WPAN system which includes a parent piconet having a plurality of devices and a child piconet using time slots allocated by the devices located in the parent piconet, and a bridge device located in the child piconet, that broadcasts information about the devices of the parent piconet and information about the devices of the child piconet to the devices included in the high-speed WPAN, and operates to perform a data transfer between a first specified device in the child piconet and a second specified device in the parent piconet.
    Type: Grant
    Filed: April 3, 2007
    Date of Patent: October 11, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seo-Won Kwon, Se-Youn Lim, Jin-Hee Kim, Jae-Yeon Song, Yoon-Sun Lee, Jong-Hwa Lee
  • Patent number: 7570945
    Abstract: A home network system for supporting continuity of data transfer destined for an MS (Mobile Station) when the MS moves between wireless nodes, comprising a server for storing multimedia data and a network connecting the server to the MS via the wireless nodes. A first wireless node, while transferring predetermined data from the server to the MS, senses that a connection with the MS is cut off. The predetermined data to be transferred to the MS is then buffered in one or more of the wireless nodes at a time point of disconnection with the MS, and the first wireless node maintains a connection with the server. A second wireless node in the home network system establishes a connection with the MS and, in response a data transfer request from the MS, provides the buffered data to the MS.
    Type: Grant
    Filed: May 25, 2005
    Date of Patent: August 4, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yoon-Sun Lee, Jae-Yeon Song, Se-Youn Lim, Seo-Won Kwon, Ji-Eun Keum, Jong-Hwa Lee, Jeong-Min You
  • Patent number: 7535930
    Abstract: An optical network terminal (ONT) management control protocol of gigabit-capable passive optical network. A gigabit-capable passive optical network encapsulation method (GEM) frame structure that supports delivery of ONT management control information for an optical network unit (ONU) using a GEM and a method for processing data using the GEM frame structure. The GEM frame structure includes in the GEM header a payload type of the GEM header frame, and is used for a gigabit-capable passive optical network (GPON), wherein payload type information, which represents a data type of a payload portion of the GEM frame, is displayed in a header of the GEM frame, in order to provide a GEM control frame which delivers management control information transferred from an OLT (Optical Line Termination).
    Type: Grant
    Filed: March 15, 2004
    Date of Patent: May 19, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Se-Youn Lim, Jong-Hwa Lee, Yoon-Sun Lee, Seo-Won Kwon, Jae-Yeon Song, Jin-Hee Kim
  • Patent number: 7515571
    Abstract: Disclosed is a frame structure in a high-speed wireless personal area network (WPAN) and a message transmitting method thereof which enable communications among devices existing in different piconets by using a device that provides a bridging function in the IEEE 802.15.3 WPAN. In a high-speed WPAN system which includes a parent piconet having a plurality of devices and a child piconet using time slots allocated by the devices located in the parent piconet, and a bridge device located in the child piconet, that broadcasts information about the devices of the parent piconet and information about the devices of the child piconet to the devices included in the high-speed WPAN, and operates to perform a data transfer between a first specified device in the child piconet and a second specified device in the parent piconet.
    Type: Grant
    Filed: July 15, 2004
    Date of Patent: April 7, 2009
    Assignee: Samsung Electronics, Co., Ltd.
    Inventors: Seo-Won Kwon, Se-Youn Lim, Jin-Hee Kim, Jae-Yeon Song, Yoon-Sun Lee, Jong-Hwa Lee
  • Patent number: 7450551
    Abstract: A multicast transmission method in GEM mode in Gigabit-capable passive optical network and a method of processing frames. The multicast transmission method includes the steps of: (a) setting a multicast connection; and (b) transmitting multicast messages in a GEM mode, wherein said step (a) includes a first sub step (i), in which predetermined ONTs are registered to a multicast group by means of IGMP frames in the first step, and a second sub step (11), in which an OLT assigns a multicast port ID to the multicast group and the ONTs registered to the multicast group. In addition, step (b) includes a first substep (i), in which the OLT assigns a multicast port ID to a message transmitted from a router to the multicast group, and transmits the message, and a second sub-step (ii), in which an ONT, which belongs to the OLT, filters the message, to which the multicast port ID is assigned, by means of a port ID assigned to the ONT.
    Type: Grant
    Filed: June 16, 2004
    Date of Patent: November 11, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Se-Youn Lim, Jae-Yeon Song, Jin-Hee Kim, Seo-Won Kwon, Yoon-Sun Lee, Jong-Hwa Lee
  • Patent number: 7450515
    Abstract: A GEM OAM frame transmission method used in a Gigabit-capable passive optical network is provided. The method defines an OAM frame structure in a GEM mode of the Gigabit-capable passive optical network and enables an OAM to be achieved even when the GEM mode is operated. The method comprises the steps of: constructing a GEM OAM frame including a GEM header field and a GEM payload field, the GEM header field containing OAM representation information indicating that the GEM OAM frame contains the OAM information, the GEM payload field containing the OAM information; and transmitting the constructed GEM OAM frame in order to enable the ONU/ONT to perform an operation according to the OAM information.
    Type: Grant
    Filed: April 5, 2004
    Date of Patent: November 11, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jae-Yeon Song, Se-Youn Lim, Jin-Hee Kim, Seo-Won Kwon, Yoon-Sun Lee, Jong-Hwa Lee
  • Patent number: 7433353
    Abstract: Disclosed is a method for constructing a frame of data for transmission by each Ethernet device in a synchronous Ethernet, which comprising the steps of receiving the data for transmission and confirming whether or not the data for transmission are synchronous data, when the received data are synchronous data, marking that the data are synchronous data in a preamble of the frame and constructing a synchronous frame by including the received data into a data portion of the frame which does not contain a MAC header and when the received data are asynchronous data, marking that the data are asynchronous data in the preamble of the frame and constructing an asynchronous frame by including the received data into a data portion of the frame containing a MAC header.
    Type: Grant
    Filed: December 8, 2004
    Date of Patent: October 7, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Se-Youn Lim, Jae-Yeon Song, Seo-Won Kwon, Jong-Ho Yoon
  • Patent number: 7406103
    Abstract: A method and apparatus for transmitting data from an optical network unit (ONU) to an optical line termination (OLT) in a Gigabit Ethernet passive optical network (GE-PON) on the basis of a time division multiple access (TDMA) scheme are provided. A measurement of a data transmission time when the data is transmitted to the OLT is obtained, and the measured data transmission time is compared with a predetermined normal transmission time. The transmission of the data is maintained if the measured data transmission time is determined to be less than or equal to the normal transmission time from the comparison result. However, if the measured data transmission time is determined to be greater than the normal transmission time, the transmission of the data is stopped.
    Type: Grant
    Filed: January 23, 2004
    Date of Patent: July 29, 2008
    Assignee: Samsung Electronics Co, Ltd.
    Inventors: Jae-Yeon Song, Jin-Hee Kim, Se-Youn Lim, Jong-Hwa Lee, Yoon-Sun Lee, Seo-Won Kwon, Jong-Ho Yoon
  • Patent number: 7394827
    Abstract: An asynchronous data segmentation/transmission method for synchronous Ethernet and a data structure used therein are disclosed. The asynchronous data segmentation/transmission method can segment and transmit asynchronous data such that the asynchronous data can be transmitted through a transmission frame for each transmission cycle.
    Type: Grant
    Filed: December 6, 2004
    Date of Patent: July 1, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seo-Won Kwon, Jae-Yeon Song, Se-Youn Lim, Jong-Ho Yoon
  • Patent number: 7376136
    Abstract: A GTC frame Structure and a method for transmission of ONT management control information in GPON. The method comprises the steps of: constructing a GTC frame which includes a PCBd portion having an OMCC field including either destination identifier information for supporting a GEM mode or destination identifier information for supporting a ATM mode, and a payload portion including data; and transmitting the GTC frame. The GTC frame structure for ONT management control information transmission can transmit the management control information to an ONT supporting either ATM mode or GEM mode.
    Type: Grant
    Filed: March 18, 2004
    Date of Patent: May 20, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jae-Yeon Song, Se-Youn Lim, Jin-Hee Kim, Seo-Won Kwon, Yoon-Sun Lee, Jong-Hwa Lee
  • Patent number: 7366150
    Abstract: An indoor local area network (LAN) system using an ultra wide-band (UWB) communication system is provided. The indoor LAN system includes at least one remote terminal including a UWB module for converting input digital data to be transmitted into an analog signal of an ultra wide-bandwidth and wirelessly transmitting the converted analog signal via an antenna of the remote terminal. The UWB module receives an analog signal of the ultra wide-bandwidth via the antenna and converts the received analog signal into a digital signal. The indoor LAN system further includes at least one access point for performing USB-based wireless communication with the remote terminal in a corresponding area. The access point is adapted to receive the analog signal of the ultra wide-bandwidth transmitted from the remote terminal and convert the received analog signal into an optical signal.
    Type: Grant
    Filed: September 9, 2003
    Date of Patent: April 29, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sang-Il Lee, Yun-Je Oh, Jong-Hun Lee, Jong-Hwa Lee, Seo-Won Kwon, Yun-Kyung Oh
  • Patent number: 7366418
    Abstract: A high-speed WPAN (Wireless Personal Area Network) system for extending a service area includes an optical fiber serving as a medium for transmitting data; a plurality of pico-nets each including a plurality of devices and a PNC (Pico-Net Coordinator) device for managing the devices; a plurality of two-way signal converters corresponding to the pico-nets, each of the signal converters adapted for converting an optical signal received from the optical fiber into an electrical signal to transmit the electrical signal to the pico-nets, and for converting an electrical signal received from each of the pico-nets into an optical signal to transmit the optical signal to the optical fiber. A plurality of connectors are attached to the optical fiber and the signal converters for transmitting signals input from the optical fiber and the signal converters bidirectionally.
    Type: Grant
    Filed: February 4, 2004
    Date of Patent: April 29, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seo-Won Kwon, Yun-Kyung Oh, Sang-Il Lee, Se-Youn Lim, Jong-Hun Lee
  • Patent number: 7349633
    Abstract: An access point in an optical fiber-based high-speed optical wireless network is disclosed.
    Type: Grant
    Filed: September 25, 2003
    Date of Patent: March 25, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jong-Hun Lee, Yun-Kyung Oh, Sang-Il Lee, Seo-Won Kwon, Jong-Hwa Lee, Yun-Je Oh
  • Patent number: 7340177
    Abstract: A device and method to monitor and temperature compensate change in wavelength within a WDM optical communication system is disclosed. The device includes a laser diode for generating an optical signal for temperature monitoring, a first fiber Fabry-Perot interferometer sensor unit for generating a first sensor signal according to temperature by means of the optical signal, and a processor for monitoring temperature by means of the first sensor signal and an externally provided second sensor signal and equalizing waveforms of the two sensor signals with each other. The externally provided second sensor signal is provided by a remote node that includes a second fiber Fabry-Perot interferometer sensor unit for receiving the optical signal for temperature monitoring to generate the second sensor signal according to temperature, and a waveguide grating router unit for transmitting the second sensor signal to the optical line terminal.
    Type: Grant
    Filed: June 7, 2004
    Date of Patent: March 4, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seo-Won Kwon, Kyung-Woo Lee, Jin-Hee Kim, Se-Youn Lim, Jong-Hwa Lee, Yoon-Sun Lee, Jae-Yeon Song
  • Patent number: 7310473
    Abstract: A light concentrator for an optical antenna gradually narrows from the light receiving end to the end in contact with a light detector, and has a refractive index that gradually increases from the first to the second end, to afford a greater acceptance angle for the incoming optical signal. The increase may occur in stages of corresponding layers of the light concentrator, the layers being arranged in order of increase in refractive index from the first end to the second end.
    Type: Grant
    Filed: July 20, 2004
    Date of Patent: December 18, 2007
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jin-Hee Kim, Jong-Hwa Lee, Ji-Eun Keum, Jae-Yeon Song, Se-Youn Lim, Yoon-Sun Lee, Seo-Won Kwon
  • Publication number: 20070177570
    Abstract: Disclosed is a frame structure in a high-speed wireless personal area network (WPAN) and a message transmitting method thereof which enable communications among devices existing in different piconets by using a device that provides a bridging function in the IEEE 802.15.3 WPAN. In a high-speed WPAN system which includes a parent piconet having a plurality of devices and a child piconet using time slots allocated by the devices located in the parent piconet, and a bridge device located in the child piconet, that broadcasts information about the devices of the parent piconet and information about the devices of the child piconet to the devices included in the high-speed WPAN, and operates to perform a data transfer between a first specified device in the child piconet and a second specified device in the parent piconet.
    Type: Application
    Filed: April 3, 2007
    Publication date: August 2, 2007
    Inventors: Seo-Won Kwon, Se-Youn Lim, Jin-Hee Kim, Jae-Yeon Song, Yoon-Sun Lee, Jong-Hwa Lee
  • Publication number: 20070172241
    Abstract: An apparatus for transmitting signals between UWB networks is disclosed, which comprises: a signal converter for converting received optical signals from another UWB network into UWB signals, transmitting the converted optical signals within a UWB network, and converting UWB signals generated from within the UWB network into optical signals; and an optical signal transmission means for directing the received optical signals the signal converter and a further UWB network.
    Type: Application
    Filed: March 13, 2007
    Publication date: July 26, 2007
    Inventors: Seo-Won Kwon, Yun-Kyung Oh, Sang-Il Lee, Jong-Hun Lee, Jong-Hwa Lee
  • Patent number: 7158758
    Abstract: A high-speed WPAN (Wireless Personal Area Network) system for enabling communication between piconets is configured by at least one first device located in the child piconet. A C-PNC (Child Piconet Coordinator) device includes a C-MIB (Child Piconet Management Information Base) stores mapping information associated with devices located in the child piconet and a P-MIB (Parent Piconet Management Information Base) stores mapping information associated with devices located in a parent piconet. At least one second device is located in the parent piconet. The first device includes a C-MIB and a first B-MIB (Bridging Management Information Base), detects destination information of data using the mapping information stored in the first B-MIB to transmit data to a device located in the parent piconet, and transmits the data containing the detected information to the C-PNC device.
    Type: Grant
    Filed: January 16, 2004
    Date of Patent: January 2, 2007
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Se-Youn Lim, Seo-Won Kwon, Jin-Hee Kim, Jae-Yeon Song, Yoon-Sun Lee, Jong-Hwa Lee
  • Publication number: 20060159050
    Abstract: A method is provided for transmitting data during handover of a mobile node in a wireless communication system. Upon receiving a handover request from a particular mobile node, a multicast router creates a multicast tree depending on a multicast address of the mobile node, and transmits data to the mobile node in a multicast mode using the multicast tree.
    Type: Application
    Filed: January 20, 2006
    Publication date: July 20, 2006
    Applicant: SAMSUNG ELECTRONICS CO., LTD
    Inventors: Hyun-Ok Kim, Young-Seok Kim, Seo-Won Kwon, Young-Jun Park
  • Publication number: 20060083271
    Abstract: Disclosed are an apparatus for transmitting a frame and a method for controlling the transmission of a frame for strict synchronization. The frame transmission apparatus includes a cycle controller for providing information about a transmission block of the transmission cycle, a transmission multiplexer for multiplexing and outputting synchronous frames and asynchronous frames input thereto through the frame transmission apparatus in one transmission cycle, and a transmission controller for controlling the transmission multiplexer such that total sizes of the multiplexed synchronous frames and asynchronous frames do not exceed a size of one transmission cycle using information about the sizes of the synchronous frames, the sizes of the asynchronous frames, and the transmission block of the transmission cycle provided by the cycle controller.
    Type: Application
    Filed: October 5, 2005
    Publication date: April 20, 2006
    Inventors: Se-Youn Lim, Jae-Yeon Song, Seo-Won Kwon