Patents Represented by Attorney NSIP Law

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  • Method and apparatus for supporting fast mobility IP with link identifier prefix in wireless communication system
    Patent number: 8244253
    Abstract: A method and apparatus for supporting a fast mobility Internet Protocol (IP) with a link identifier prefix (LinkID prefix) in a wireless communication system are provided. According to a method for performing a handoff from a first access router to a second access router, a Layer 2 (L2) beacon containing a link identifier prefix is sent to a mobile node in the second access router. The first access router establishes a tunneling with the second router, as the mobile node sends a Fast Binding Update (FBU) message including a care-of address (CoA) which the mobile node dynamically constructs using the link identifier prefix, to the first access router.
    Type: Grant
    Filed: October 17, 2006
    Date of Patent: August 14, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jin-Jyeock Choi, Subba Reddy Kota
  • Method of and apparatus for monitoring code to detect intrusion code
    Patent number: 8245299
    Abstract: A method and apparatus for monitoring a code to detect intrusion code is used to monitor target code to determine whether the target code is a resident code in a system or an intrusion code into the system. A first code pattern is extracted from the target code and a second code pattern is loaded from a storage unit, and a distance between the first code pattern and the second code pattern is calculated. The calculated distance is compared to a threshold to determine whether the target code is an intrusion code.
    Type: Grant
    Filed: November 27, 2006
    Date of Patent: August 14, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Tae-Jin Ahn, Yun-Sun Nam, Jung-Hwan Song
  • Method and system for measuring traffic quality in distribution
    Patent number: 8240552
    Abstract: Provided is a method and system for measuring traffic quality in distribution using test mail into which a radio frequency identity tag is inserted. The system accepts at least one test distribution piece including a tag, and collects information of test distribution by sensing a tag included with the test distribution piece at measuring points for measuring a time from acceptance to delivery of a general distribution piece. The system generates a processing rate and a delivery rate of distribution based on information of the test distribution pieces collected from the measuring points.
    Type: Grant
    Filed: November 9, 2009
    Date of Patent: August 14, 2012
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Young Gon Kim, Jong Heung Park
  • Multi-channel MAC method for WLAN devices with a single radio interface and system for implementing the same
    Patent number: 8243699
    Abstract: A multi-channel media access control (MAC) method for Wireless Local Area Network (WLAN) devices with single radio interface is provided. The method includes starting a channel coordination window (CCW) that is repeated with a period P, allocating an arbitrary WLAN device pair on a common channel to a destination channel by using a channel utilization vector that indicates whether each of N channels is occupied or available during CCW, and switching the arbitrary WLAN device pair to the destination channel.
    Type: Grant
    Filed: May 30, 2006
    Date of Patent: August 14, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sung-Won Lee, Jun-Seo Lee, Rakesh Taori
  • Method and apparatus of performing tunnel signaling over IP tunneling path
    Patent number: 8238343
    Abstract: An apparatus and method for performing tunnel signaling over an IP tunneling path are provided. The method includes transmitting an end-to-end signaling flow through an end-to-end path connected to the IP tunneling path, generating a tunnel signaling flow corresponding to the end-to-end signaling flow, and transmitting the generated tunnel signaling flow through the IP tunneling path, wherein the end-to-end signaling flow and the tunnel signaling flow respectively include a binding data object storing binding information for an end-to-end session associated with the end-to-end signaling flow or a tunnel session associated with the tunnel signaling flow.
    Type: Grant
    Filed: October 18, 2006
    Date of Patent: August 7, 2012
    Assignees: Samsung Electronics Co., Ltd., The Trustee of Columbia University in the City of New York
    Inventors: Sung-Hyuck Lee, Jong-Ho Bang, Henning Schulzrinne, Charles Qi Shen
  • Holographic recording/reproducing apparatus having aperture of variable size
    Patent number: 8238216
    Abstract: Provided is a holographic recording/reproducing apparatus including an aperture device having aperture of variable size. The holographic recording/reproducing apparatus includes a light source, an optical system to divide light emitted from the light source into a recording reference beam and a recording signal beam, and direct the recording reference beam and the recording signal beam to a same location of a holographic recording medium, a spatial light modulator (SLM) to modulate the recording signal beam into a two-dimensional signal pattern, a two-dimensional photodetector to detect a reproducing signal beam that is refracted via the holographic recording medium, and the aperture to limit a size of a spot of the reproducing signal beam, wherein the size of the aperture is variable.
    Type: Grant
    Filed: December 20, 2007
    Date of Patent: August 7, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Jong-chul Choi
  • Method for reporting reception result of packets in mobile communication system
    Patent number: 8238236
    Abstract: Disclosed is a method for configuring a bitmap in a mobile communication system employing a block ACK scheme, which faithfully performs its intrinsic function of acknowledging a reception result, and yet can reduce transmission delay and the overall system load due to retransmission in the case where packet loss is relatively less important than transmission delay time, such as in the case of voice communication. To this end, a recipient compares a PER of a received packet signal with a threshold value. If the PER is higher than the threshold value, the recipient operates in the block ACK scheme, and if the PER is lower than the threshold value, the recipient determines a bitmap configuration scheme on the assumption that an erroneous frame has been successfully received. Also, using the determined bitmap configuration scheme, the recipient transmits a reception result for each received packet.
    Type: Grant
    Filed: May 30, 2006
    Date of Patent: August 7, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Young-Soo Kim, Kyung-Hun Jang, Dong-Jun Lee, Jung-Hoon Suh
  • System and method for reserving resources in a mobile network environment using multiple interfaces
    Patent number: 8238294
    Abstract: A system and method for reserving resources for a Mobile Node (MN) having a plurality of wireless network interfaces in a mobile network under a multi-homed environment are provided, wherein the MN transmits query messages requesting a path be setup to a plurality of Access Routers (ARs) accessible through the wireless network interfaces, a Crossover Router Node (CRN), shared by a plurality of paths running to a CN via the ARs, selects an optimal path from among the plurality of paths using the path information set in the query messages propagated through the plurality of paths, the CRN transmits the resource reserve message through the selected optimal path, and the routers existing in the optimal path reserve resources according to the resource reserve message.
    Type: Grant
    Filed: March 5, 2007
    Date of Patent: August 7, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sung-Hyuck Lee, Su-Won Lee
  • InSb-based switching device
    Patent number: 8237236
    Abstract: An InSb-based switching device, which operates at room temperature by using a magnetic field controlled avalanche process for applying to magneto-logic elements, is provided. A switching device of one embodiment includes a p-type semiconductor layer; an n-type semiconductor layer; and contact layers disposed on one of the p-type and n-type semiconductor layers, the p-type semiconductor layer being in contact with the n-type semiconductor layer such that a current can be applied through the contact layers to the p-type and n-type semiconductor layers to cause a current flow from one of the contact layers to the p-type and n-type semiconductor layers and from the p-type and n-type semiconductor layers to the other of the contact layers, whereby the current flow can be controlled by an intensity of a magnetic field applied to the p-type and n-type semiconductor layers substantially perpendicularly thereto.
    Type: Grant
    Filed: April 19, 2010
    Date of Patent: August 7, 2012
    Assignee: Korea Institute of Science and Technology
    Inventors: Jin Dong Song, Sung Jung Joo, Jin Ki Hong, Sang Hoon Shin, Kyung Ho Shin, Tae Yueb Kim, Ju Young Lim, Jin Seo Lee, Kung Won Rhie
  • Apparatus for generating precoding matrix codebook for MIMO system and method of the same
    Patent number: 8238461
    Abstract: An apparatus for generating a precoding matrix codebook includes a matrix group generator to generate a first group of unitary matrices based on a vector-based codebook for precoding of a multiple input multiple output (MIMO) communication scheme; a matrix group extender to extend the first group of unitary matrices to generate a second group of unitary matrices; and a matrix group selector to select a group of columns corresponding to a communication rank from each of the unitary matrices that are elements of the second group so that the columns are optimized based on a distance between the columns corresponding to the communication rank.
    Type: Grant
    Filed: December 31, 2007
    Date of Patent: August 7, 2012
    Assignees: Samsung Electronics Co., Ltd., Purdue Research Foundation
    Inventors: Yongxing Zhou, Bruno Clerckx, Goochul Chung, David J. Love, Il Han Kim
  • Optical collimator assembly and optical pickup device including the same
    Patent number: 8233360
    Abstract: An optical collimator assembly used in an optical pickup device and an optical pickup device are provided. The optical collimator assembly may include a collimating lens, a lens holder for supporting the collimating lens, a piezoelectric element coupled to the lens holder and including a female screw portion disposed along a central axis in one direction and a plurality of pairs of piezoelectric bodies disposed symmetrically with one another around the central axis and for causing deformation in a direction that crosses the central axis, and a male screw type transfer screw coupled to the female screw portion of the piezoelectric element.
    Type: Grant
    Filed: April 18, 2011
    Date of Patent: July 31, 2012
    Assignee: Toshiba Samsung Storage Technology Korea Corporation
    Inventor: Won-ik Cho
  • Reproducing apparatus and method, and recording medium
    Patent number: 8233780
    Abstract: A reproducing apparatus and method includes a reproducing unit to reproduce mainstream data and sub audio data separately added in the mainstream data, wherein the reproducing unit comprises a counter used in reproducing the sub audio data. Accordingly, it is possible to more naturally reproduce still image data, such as a browsable slide show, to which sub audio data is additionally included, thus preventing an interruption in reproduction of the sub audio data even during a forward or reverse play.
    Type: Grant
    Filed: May 18, 2006
    Date of Patent: July 31, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kil-soo Jung, Seong-jin Moon
  • Method of controlling recording operation and optical disc drive employing the method
    Patent number: 8233363
    Abstract: Provided are a method of controlling a recording operation in an optical disc drive to improve recording quality and an optical disc drive employing the method. The method includes setting recording power and parameters related to the generation of recording pulses by successively performing an optimum power controlling (OPC) process for adjusting recording power and an optimum write strategy (WST) tuning control (OWC) process for adjusting parameters related to the generation of recording pulses. The method also includes performing data recording based on the set recording power and the set parameters related to the generation of recording pulses.
    Type: Grant
    Filed: July 28, 2010
    Date of Patent: July 31, 2012
    Assignee: Toshiba Samsung Storage Technology Korea Corporation
    Inventor: Sang-whook Kim
  • Display driving circuit including a latch-up prevention unit
    Patent number: 8232985
    Abstract: A display driving circuit is provided. The display driving circuit includes first to third voltage generation units configured to receive an externally applied input voltage having a same magnitude and generate respective voltages having different magnitudes, and a latch-up prevention unit connected to the second voltage generation unit and configured to receive a lower voltage among voltages output from the second voltage generation unit and to ground the lower voltage for a preset period of time.
    Type: Grant
    Filed: June 30, 2008
    Date of Patent: July 31, 2012
    Assignee: Magnachip Semiconductor, Ltd.
    Inventors: Tae Kyoung Kang, Jun Hyoung Myoung, Jin Wook Kim
  • Multiple-input multiple-output (MIMO) communication method and system of enabling the method
    Patent number: 8228810
    Abstract: A Multiple-Input Multiple-Output (MIMO) communication method and system, the MIMO communication system including: a first channel quality information (CQI) receiving unit to receive first CQI from a user terminal, the first CQI associated with a beamforming vector selected by the user terminal; and a second CQI generating unit to generate second CQI by correcting the first CQI based on a transmission rank associated with a number of data streams to be transmitted.
    Type: Grant
    Filed: June 24, 2008
    Date of Patent: July 24, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yongxing Zhou, Joon-Il Choi, Sung Jin Kim
  • Optical recording medium, recording/reproducing apparatus, and recording/reproducing method
    Patent number: 8228770
    Abstract: An information recording medium, on which when a spare area for a replacement block for replacing a defect block created in a predetermined area of an information recording medium is enlarged or newly allocated, defect status information of blocks within the enlarged or newly allocated spare area is changed and written on the information recording medium. By managing the defect status information of the blocks within the enlarged or newly allocated spare area, unnecessary operations of a drive system are eliminated thus improving efficiency of the drive system.
    Type: Grant
    Filed: March 20, 2008
    Date of Patent: July 24, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sung-hee Hwang, Jung-wan Ko
  • Method and system for providing multicast service in next-generation network
    Patent number: 8228812
    Abstract: Provided are a method and system for providing a multicast service in a next-generation network (NGN), which can improve the quality-of-service (QoS) of broadcast services by separating a routing path calculation function and a resource allocation function during the setting of a multicast broadcast channel and enabling a resource control server to perform centralized resource control. In the method and system for providing a multicast service in an NGN, a multicast router calculates a routing path, and a number of multicast routers on the calculated routing path issue a request for resources for a desired multimedia broadcast channel, and a resource control server allocates resources to the multicast routers on the calculated routing path.
    Type: Grant
    Filed: December 12, 2008
    Date of Patent: July 24, 2012
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Hyun Jin Lee, Hwa Suk Kim, Kee Seong Cho
  • Speaker
    Patent number: D664122
    Type: Grant
    Filed: May 3, 2011
    Date of Patent: July 24, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ju-Won Cho, Koung-Won Park, Yeon-Moo Chung
  • Mobile terminal with graphical user interface
    Patent number: D664151
    Type: Grant
    Filed: October 29, 2010
    Date of Patent: July 24, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Bong-Won Lee, Min-Hyuk Kim, Kyu-Sung Kim
  • Lamp housing
    Patent number: D665122
    Type: Grant
    Filed: December 13, 2011
    Date of Patent: August 7, 2012
    Assignee: Dongmyung Lighting Co., Ltd.
    Inventor: Tae-Woo You