Patents by Inventor Dong Shim

Dong Shim 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: 9355025
    Abstract: A method of controlling a memory system that comprises a first flash memory device and a memory controller, the method comprising counting a first timeout when a sudden power off occurs, resetting the first flash memory device when the first timeout expires, and dumping data to the first flash memory device.
    Type: Grant
    Filed: January 9, 2013
    Date of Patent: May 31, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Gyu-Dong Shim, Won-Moon Cheon, Min-Wook Jung
  • Patent number: 9239780
    Abstract: Memory blocks of a nonvolatile memory device are managed by identifying a full memory block, determining whether a block life of the full memory block exceeds a threshold value, and upon determining that the block life of the full memory block exceeds the threshold value, selecting the full memory block as a target block for garbage collection. The threshold of the block life is determined using an average write distance of logical pages programmed in the nonvolatile memory device.
    Type: Grant
    Filed: September 13, 2012
    Date of Patent: January 19, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Gyu-Dong Shim, Yang-Sup Lee, Won-Moon Cheon
  • Patent number: 9122585
    Abstract: A method for managing data in a storage device includes: receiving a logical page from a host and calculating an actual time stamp of the logical page; finding a block of the storage device in which the logical page is stored and detecting a time stamp of the block and a page offset of the logical page stored in the block; calculating an approximate time stamp of the logical page stored in the block using the time stamp of the block and the page offset; and determining that the logical page is in a first state if the difference between the actual time stamp and the approximate time stamp is smaller than a threshold value, and determining that the logical page is in a second state different from the first state if the difference between the actual time stamp and the approximate time stamp is larger than the threshold value.
    Type: Grant
    Filed: November 23, 2012
    Date of Patent: September 1, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Gyu-Dong Shim, Won-Moon Cheon, Jae-Hoon Heo
  • Publication number: 20130179629
    Abstract: A method of controlling a memory system that comprises a first flash memory device and a memory controller, the method comprising counting a first timeout when a sudden power off occurs, resetting the first flash memory device when the first timeout expires, and dumping data to the first flash memory device.
    Type: Application
    Filed: January 9, 2013
    Publication date: July 11, 2013
    Applicant: SAMSUNG ELECTRONICS CO., LTD
    Inventors: Gyu-Dong SHIM, Won-Moon CHEON, Min-Wook JUNG
  • Publication number: 20130166824
    Abstract: A method of managing memory blocks in a nonvolatile memory device comprises identifying a full memory block among a plurality of memory blocks in the nonvolatile memory device, determining whether a block life of the full memory block exceeds a threshold value, and upon determining that the block life of the full memory block exceeds the threshold value, selecting the full memory block as a target block for garbage collection.
    Type: Application
    Filed: September 13, 2012
    Publication date: June 27, 2013
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: GYU-DONG SHIM, YANG-SUP LEE, WON-MOON CHEON
  • Patent number: 7531130
    Abstract: The present invention relates to an anti-galling alloy with finely dispersed precipitates, more particularly to an anti-galling alloy comprising Ni, Cr, Sn, Bi, Mo, Fe, Si and Te, in which the matrix has a fine dendritic structure and the Bi-rich precipitates are finely dispersed between the dendritic structure, so that the anti-galling properties are significantly improved, while physicochemical properties such as corrosion resistance and hardness are not deteriorated. The anti-galling alloy of the present invention will greatly contribute to the improvement in life cycle and mechanical precision of a variety of wet machinery parts such as rotor, shaft, valve and mechanical sealing.
    Type: Grant
    Filed: October 2, 2003
    Date of Patent: May 12, 2009
    Assignee: Korea Anti-Galling Metal Co., Ltd.
    Inventors: Heon Phil Ha, Jae-Dong Shim, Kyung Tak Kim
  • Publication number: 20070127998
    Abstract: An electrode tip dresser is disclosed which can dress a pair of electrode tips to a usable state while achieving a desired accuracy of a tip surface of each electrode tip including an angular portion at a peripheral edge of the tip surface, without separating each electrode tip from a welding gun. The electrode tip dresser includes a holder which is rotatable about a common axis of electrode tips, a pair of support shafts which are held by the holder, are arranged in parallel in an approach direction of the electrode tips, and extend in a direction orthogonal to the approach direction, and a pair of dressing rollers which are rotatably supported by the support shafts, respectively, to dress the electrode tips to a usable state.
    Type: Application
    Filed: February 27, 2006
    Publication date: June 7, 2007
    Applicant: KYOKUTOH KOREA CORPORATION
    Inventor: Dong Shim
  • Publication number: 20070113934
    Abstract: The present invention relates to an anti-galling alloy with finely dispersed precipitates, more particularly to an anti-galling alloy comprising Ni, Cr, Sn, Bi, Mo, Fe, Si and Te, in which the matrix has a fine dendritic structure and the Bi-rich precipitates are finely dispersed between the dendritic structure, so that the anti-galling properties are significantly improved, while physicochemical properties such as corrosion resistance and hardness are not deteriorated. The anti-galling alloy of the present invention will greatly contribute to the improvement in life cycle and mechanical precision of a variety of wet machinery parts such as rotor, shaft, valve and mechanical sealing.
    Type: Application
    Filed: October 2, 2003
    Publication date: May 24, 2007
    Inventors: Heon Ha, Jae-Dong Shim, Kyung Kim
  • Publication number: 20060290445
    Abstract: According to an embodiment of the present invention, a microelectromechanical system (MEMS) element tunes a resonator to a frequency.
    Type: Application
    Filed: June 16, 2005
    Publication date: December 28, 2006
    Inventors: Jun Su, Dong Shim, Oing Ma, Valluri Rao
  • Publication number: 20060001329
    Abstract: A film bulk acoustic resonator (FBAR) comprises a piezoelectric film sandwiched between a top electrode and a bottom electrode. A temperature sensor is provided to sense a temperature to determine a temperature induced frequency drift for the FBAR. A voltage controller operatively connected to the temperature sensor supplies a direct current (DC) bias voltage to the FBAR to induce an opposite voltage induced frequency drift to compensate for the temperature induced frequency drift.
    Type: Application
    Filed: June 30, 2004
    Publication date: January 5, 2006
    Inventors: Valluri Rao, Qing Ma, Quan Tran, Dong Shim, Li-Peng Wang
  • Patent number: 6967548
    Abstract: This application discloses a microelectromechanical (MEMS) switch apparatus comprising an anchor attached to a substrate and an electrically conductive beam attached to the anchor and in electrical contact therewith. The beam comprises a tapered portion having a proximal end and a distal end, the proximal end being attached to the anchor, an actuation portion attached to the distal end of the tapered portion, a tip attached to the actuation portion, the tip having a contact dimple thereon. The switch apparatus also includes an actuation electrode attached to the substrate and positioned between the actuation portion and the substrate. Additional embodiments are also described and claimed.
    Type: Grant
    Filed: August 4, 2004
    Date of Patent: November 22, 2005
    Assignee: Intel Corporation
    Inventors: Qing Ma, Valluri Rao, John Heck, Li-Peng Wang, Dong Shim, Quan Tran
  • Publication number: 20050248420
    Abstract: Plural band film bulk acoustic resonators may be formed on the same integrated circuit using lithographic techniques. As a result, high volume production of reproducible components can be achieved, wherein the resonators, as manufactured, are designed to have different frequencies.
    Type: Application
    Filed: May 7, 2004
    Publication date: November 10, 2005
    Inventors: Qing Ma, Li-Peng Wang, Dong Shim, Valluri Rao
  • Publication number: 20050122001
    Abstract: Microelectromechanical system (MEMS) apparatus and methods for surface acoustic wave (SAW) switching are disclosed. The apparatus includes a piezoelectric substrate having spaced apart input and output SAW transducers. A MEMS switch is arranged between the input and output SAW transducers The MEMS switch has a deformable member in electromagnetic communication with one or more actuation electrodes formed on or above the substrate. The deformable member is deformable to mechanically contact the substrate to deflect or absorb a SAW generated by the input SAW transducer.
    Type: Application
    Filed: January 18, 2005
    Publication date: June 9, 2005
    Inventors: Qing Ma, Dong Shim
  • Publication number: 20050093652
    Abstract: The disclosure describes an apparatus comprising a film bulk acoustic resonator (FBAR) filter having an input and an output, and an impedance matching unit coupled to one of the input and the output of the FBAR filter. Also described is a process comprising providing a film bulk acoustic resonator (FBAR) filter, the FBAR filter having an input impedance and an output impedance, matching the impedance of an input circuit to the input impedance of the FBAR filter, and matching the output impedance of the FBAR filter to the impedance of an output circuit. Other embodiments are described and claimed.
    Type: Application
    Filed: October 31, 2003
    Publication date: May 5, 2005
    Inventors: Qing Ma, Dong Shim
  • Publication number: 20050007219
    Abstract: This application discloses a microelectromechanical (MEMS) switch apparatus comprising an anchor attached to a substrate and an electrically conductive beam attached to the anchor and in electrical contact therewith. The beam comprises a tapered portion having a proximal end and a distal end, the proximal end being attached to the anchor, an actuation portion attached to the distal end of the tapered portion, a tip attached to the actuation portion, the tip having a contact dimple thereon. The switch apparatus also includes an actuation electrode attached to the substrate and positioned between the actuation portion and the substrate. Additional embodiments are also described and claimed.
    Type: Application
    Filed: August 4, 2004
    Publication date: January 13, 2005
    Inventors: Qing Ma, Valluri Rao, John Heck, Li-Peng Wang, Dong Shim, Quan Tran
  • Patent number: 6812814
    Abstract: This application discloses a microelectromechanical (MEMS) switch apparatus comprising an anchor attached to a substrate and an electrically conductive beam attached to the anchor and in electrical contact therewith. The beam comprises a tapered portion having a proximal end and a distal end, the proximal end being attached to the anchor, an actuation portion attached to the distal end of the tapered portion, a tip attached to the actuation portion, the tip having a contact dimple thereon. The switch apparatus also includes an actuation electrode attached to the substrate and positioned between the actuation portion and the substrate. Additional embodiments are also described and claimed.
    Type: Grant
    Filed: October 7, 2003
    Date of Patent: November 2, 2004
    Assignee: Intel Corporation
    Inventors: Qing Ma, Valluri Rao, John Heck, Li-Peng Wang, Dong Shim, Quan Tran
  • Publication number: 20040056740
    Abstract: This application discloses a microelectromechanical (MEMS) switch apparatus comprising an anchor attached to a substrate and an electrically conductive beam attached to the anchor and in electrical contact therewith. The beam comprises a tapered portion having a proximal end and a distal end, the proximal end being attached to the anchor, an actuation portion attached to the distal end of the tapered portion, a tip attached to the actuation portion, the tip having a contact dimple thereon. The switch apparatus also includes an actuation electrode attached to the substrate and positioned between the actuation portion and the substrate. Additional embodiments are also described and claimed.
    Type: Application
    Filed: October 7, 2003
    Publication date: March 25, 2004
    Inventors: Qing Ma, Valluri Rao, John Heck, Li-Peng Wang, Dong Shim, Quan Tran
  • Patent number: 6686820
    Abstract: This application discloses a microelectromechanical (MEMS) switch apparatus comprising an anchor attached to a substrate and an electrically conductive beam attached to the anchor and in electrical contact therewith. The beam comprises a tapered portion having a proximal end and a distal end, the proximal end being attached to the anchor, an actuation portion attached to the distal end of the tapered portion, a tip attached to the actuation portion, the tip having a contact dimple thereon. The switch apparatus also includes an actuation electrode attached to the substrate and positioned between the actuation portion and the substrate. Additional embodiments are also described and claimed.
    Type: Grant
    Filed: July 11, 2002
    Date of Patent: February 3, 2004
    Assignee: Intel Corporation
    Inventors: Qing Ma, Valluri Rao, John Heck, Li-Peng Wang, Dong Shim, Quan Tran
  • Publication number: 20040008097
    Abstract: This application discloses a microelectromechanical (MEMS) switch apparatus comprising an anchor attached to a substrate and an electrically conductive beam attached to the anchor and in electrical contact therewith. The beam comprises a tapered portion having a proximal end and a distal end, the proximal end being attached to the anchor, an actuation portion attached to the distal end of the tapered portion, a tip attached to the actuation portion, the tip having a contact dimple thereon. The switch apparatus also includes an actuation electrode attached to the substrate and positioned between the actuation portion and the substrate. Additional embodiments are also described and claimed.
    Type: Application
    Filed: July 11, 2002
    Publication date: January 15, 2004
    Inventors: Qing Ma, Valluri Rao, John Heck, Li-Peng Wang, Dong Shim, Quan Tran