Patents by Inventor Sang-Kug Park

Sang-Kug Park 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: 7881129
    Abstract: A high voltage regulator may include a first regulating unit, a second regulating unit, and an output node. The first regulating unit regulates the program voltage in a voltage-level-up interval of a program voltage of a memory cell. The second regulating unit regulates the program voltage in a voltage-level-down interval of the program voltage. The output node outputs the regulated program voltage.
    Type: Grant
    Filed: January 23, 2008
    Date of Patent: February 1, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sang-kug Park, Dae-han Kim
  • Patent number: 7791320
    Abstract: The invention relates to a voltage regulator for operation of a semiconductor memory device. In embodiments, the voltage regulator includes a standby regulator unit and an active regulating unit. Embodiments of the invention decouple the operation of the standby regulating unit and the active regulating unit of a voltage regulator so that both can operate simultaneously, for example during a read operation. In embodiments of the invention, the standby regulating unit includes a short pulse generator and a feedback loop to disable the standby regulating unit for a predetermined amount of time.
    Type: Grant
    Filed: August 24, 2007
    Date of Patent: September 7, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sang-kug Park, Dae-Han Kim
  • Patent number: 7724579
    Abstract: Semiconductor memory devices and a method thereof are provided. An example semiconductor memory device may include a control signal generation unit configured to generate a plurality of control signals in response to a bias current, a reference current generation unit configured to generate a reference current in response to the plurality of control signals and a sense amplifier configured to sense and amplify data stored in a given memory cell based on the reference current and a current on a bit line connected to the memory cell.
    Type: Grant
    Filed: August 23, 2007
    Date of Patent: May 25, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sang-Kug Park, Dae-Han Kim
  • Patent number: 7548466
    Abstract: A flash memory device includes a memory cell array including a plurality of memory cells. The flash memory device also includes a voltage generating circuit which generates a plurality of constant voltages to be applied to the memory cell array, the voltage generating circuit including a plurality of voltage regulators which generate at least two constant voltages, each having a constant voltage difference.
    Type: Grant
    Filed: September 15, 2006
    Date of Patent: June 16, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sang-Kug Park, Dae-Han Kim
  • Publication number: 20080180997
    Abstract: A high voltage regulator may include a first regulating unit, a second regulating unit, and an output node. The first regulating unit regulates the program voltage in a voltage-level-up interval of a program voltage of a memory cell. The second regulating unit regulates the program voltage in a voltage-level-down interval of the program voltage. The output node outputs the regulated program voltage.
    Type: Application
    Filed: January 23, 2008
    Publication date: July 31, 2008
    Inventors: Sang-kug Park, Dae-han Kim
  • Publication number: 20080151635
    Abstract: Semiconductor memory devices and a method thereof are provided. An example semiconductor memory device may include a control signal generation unit configured to generate a plurality of control signals in response to a bias current, a reference current generation unit configured to generate a reference current in response to the plurality of control signals and a sense amplifier configured to sense and amplify data stored in a given memory cell based on the reference current and a current on a bit line connected to the memory cell.
    Type: Application
    Filed: August 23, 2007
    Publication date: June 26, 2008
    Inventors: Sang-Kug Park, Dae-Han Kim
  • Publication number: 20080150499
    Abstract: The invention relates to a voltage regulator for operation of a semiconductor memory device. In embodiments, the voltage regulator includes a standby regulator unit and an active regulating unit. Embodiments of the invention decouple the operation of the standby regulating unit and the active regulating unit of a voltage regulator so that both can operate simultaneously, for example during a read operation. In embodiments of the invention, the standby regulating unit includes a short pulse generator and a feedback loop to disable the standby regulating unit for a predetermined amount of time.
    Type: Application
    Filed: August 24, 2007
    Publication date: June 26, 2008
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sang-Kug PARK, Dae-Han KIM