Patents by Inventor Yong Ki Kim

Yong Ki Kim 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: 8284880
    Abstract: A clock data recovery (CDR) circuit occupies a small area required in a high-integration semiconductor device, electronic device and system and is easy in design modification. The CDR circuit includes a digital filter configured to filter phase comparison result signals received during predetermined periods and output control signals, a driver configured to control the digital filter by adjusting the predetermined periods, and an input/output circuit configured to recognize an input and output of data and clock in response to the control signals.
    Type: Grant
    Filed: December 28, 2007
    Date of Patent: October 9, 2012
    Assignee: Hynix Semiconductor Inc.
    Inventors: Kyung-Hoon Kim, Jong-Ho Kang, Yong-Ki Kim, Dae-Han Kwon, Sang-Yeon Byeon
  • Publication number: 20120194214
    Abstract: An equipment and method to classify semiconductor packages diced on a substrate into defective and non-defective semiconductor packages includes a loading preparation table to receive a plurality of semiconductor packages to be inspected, a first inspection unit to inspect and classify the semiconductor packages received at the loading preparation table into normal semiconductor packages and defective semiconductor packages, a temporary loading table to temporarily receive at least a portion of the normal semiconductor packages, a first loading picker to transfer the defective semiconductor packages from the loading preparation table to a defective package loading tray and to transfer the normal semiconductor packages from the temporary loading table to the loading preparation table, and a second loading picker to transfer the normal semiconductor packages from the loading preparation table to a normal package loading tray.
    Type: Application
    Filed: January 31, 2012
    Publication date: August 2, 2012
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Yo-se EUM, Dong-Chul Han, Yong-Ki Kim, Sang-Geun Kim, Ju-Li Kang
  • Patent number: 8130890
    Abstract: A data clock frequency divider circuit includes a training decoder and a frequency divider. The training decoder outputs a clock alignment training signal, which is indicative of the start of a clock alignment training, in response to a command and an address of a mode register set. The frequency divider, which is reset in response to an output of the training decoder, receives an internal data clock to divide a frequency of the internal data clock in half. The data clock frequency divider circuit secures a sufficient operating margin so that a data clock and a system clock are aligned within a pre-set clock training operation time by resetting the data clock to correspond to a timing in which the clock training operation starts, thereby providing a clock training for a high-speed system.
    Type: Grant
    Filed: December 27, 2007
    Date of Patent: March 6, 2012
    Assignee: Hynix Semiconductor Inc.
    Inventors: Kyung-Hoon Kim, Yong-Ki Kim, Dae-Han Kwon, Taek-Sang Song
  • Publication number: 20120033507
    Abstract: An on die thermal sensor (ODTS) of a semiconductor memory device includes a high voltage generating unit for generating a high voltage having a voltage level higher than that of a power supply voltage of the semiconductor memory device; and a thermal information output unit for sensing and outputting a temperature as a thermal information code, wherein the thermal information output unit uses the high voltage as its driving voltage.
    Type: Application
    Filed: October 20, 2011
    Publication date: February 9, 2012
    Inventors: Chun-Seok JEONG, Yong-Ki Kim
  • Patent number: 8042999
    Abstract: An on die thermal sensor (ODTS) of a semiconductor memory device includes a high voltage generating unit for generating a high voltage having a voltage level higher than that of a power supply voltage of the semiconductor memory device; and a thermal information output unit for sensing and outputting a temperature as a thermal information code, wherein the thermal information output unit uses the high voltage as its driving voltage.
    Type: Grant
    Filed: December 28, 2006
    Date of Patent: October 25, 2011
    Assignee: Hynix Semiconductor Inc.
    Inventors: Chun-Seok Jeong, Yong-Ki Kim
  • Publication number: 20110229798
    Abstract: A fuel cell system includes a fuel cell system connector and a fuel cartridge connector. The fuel cell system connector includes an external structure configured to accommodate a connector of a fuel cartridge and an internal structure mounted in the external structure. A contacting surface between the external structure and the internal structure of the fuel cell system connector includes a first nano-processed surface on a fuel supply path. The fuel cartridge connector includes an external structure having a retention key and an internal structure mounted in the external structure. A contacting surface between the external structure and the internal structure of the fuel cartridge connector includes a second nano-processed surface on a fuel supply path.
    Type: Application
    Filed: February 14, 2011
    Publication date: September 22, 2011
    Inventors: Hye-jung Cho, Young-seung Na, Suk-woong Kwon, Dae-yeon Soh, Yong-ki Kim
  • Patent number: 7986581
    Abstract: A semiconductor memory device for use in a system includes a reset signal generator for generating a reset entry signal and a reset exit signal respectively in response to a start timing and a termination timing of a reset operation of the system; and a reset controller for performing a precharge operation in response to the reset entry signal and a refresh operation in response to the reset exit signal.
    Type: Grant
    Filed: March 1, 2010
    Date of Patent: July 26, 2011
    Assignee: Hynix Semiconductor Inc.
    Inventors: Chang-Ho Do, Yong-Ki Kim
  • Patent number: 7977968
    Abstract: A semiconductor memory device includes a code channel for outputting a plurality of code signals based on a code control signal inputted from an external source; a termination resistor decoder for decoding a chip selection signal, an on die termination (ODT) control signal and the plurality of code signals and outputting a plurality of selection signals based on decoded signals; and an ODT block for providing an output data pad with impedance of a termination resistor which is selected in response to the plurality of selection signals.
    Type: Grant
    Filed: October 24, 2008
    Date of Patent: July 12, 2011
    Assignee: Hynix Semiconductor Inc.
    Inventors: Yong-Ki Kim, Kyung-Hoon Kim
  • Publication number: 20110109667
    Abstract: The present invention relates to device and method for adjusting white balance in a laser display system, which enables to adjust white balance taking an optical characteristic of a laser beam into account.
    Type: Application
    Filed: July 20, 2009
    Publication date: May 12, 2011
    Inventors: Yong Ki Kim, Jung Hoon Seo
  • Patent number: 7843761
    Abstract: A semiconductor memory device is capable of securing margins of setup/hold times for receiving addresses. The device includes an address buffering unit, a data input/output line, a selecting unit and an output circuit. The address buffering unit buffers input addresses. The data input/output line transfers data with a cell array. The selecting unit selectively outputs the buffered addresses transferred from the address buffering unit and the data transferred through the data input/output line according to modes of the device. The output circuit latches an output of the selecting unit to be outputted from the device.
    Type: Grant
    Filed: June 10, 2008
    Date of Patent: November 30, 2010
    Assignee: Hynix Semiconductor Inc.
    Inventors: Sun-Suk Yang, Yong-Ki Kim
  • Patent number: 7821812
    Abstract: A dynamic random access memory includes: an address latch configured to latch a row address in response to a row address strobe (RAS) signal and latch a column address in response to a column address strobe (CAS) signal; a row decoder configured to decode the row address; an enabler configured to decode a part of most significant bits (MSB) of the column address to locally enable a part of one page area corresponding to the row address; and a column decoder configured to decode the column address.
    Type: Grant
    Filed: October 23, 2007
    Date of Patent: October 26, 2010
    Assignee: Hynix Semiconductor Inc.
    Inventor: Yong-Ki Kim
  • Publication number: 20100149891
    Abstract: A semiconductor memory device for use in a system includes a reset signal generator for generating a reset entry signal and a reset exit signal respectively in response to a start timing and a termination timing of a reset operation of the system; and a reset controller for performing a precharge operation in response to the reset entry signal and a refresh operation in response to the reset exit signal.
    Type: Application
    Filed: March 1, 2010
    Publication date: June 17, 2010
    Inventors: Chang-Ho Do, Yong-Ki Kim
  • Patent number: 7701790
    Abstract: A semiconductor memory device for use in a system includes a reset signal generator for generating a reset entry signal and a reset exit signal respectively in response to a start timing and a termination timing of a reset operation of the system; and a reset controller for performing a precharge operation in response to the reset entry signal and a refresh operation in response to the reset exit signal.
    Type: Grant
    Filed: September 28, 2006
    Date of Patent: April 20, 2010
    Assignee: Hynix Semiconductor, Inc.
    Inventors: Chang-Ho Do, Yong-Ki Kim
  • Patent number: 7668028
    Abstract: A dual in-line memory module (DIMM) for use in test includes a memory array with a plurality of memories, a test signal input/output unit, and a normal data input/output unit. The test signal input/output unit is provided in the respective memories to perform an input/output operation of a test signal with an external test mode controller for a test mode operation. The normal data input/output unit is provided in the respective memories to perform an input/output operation of a normal data with an external memory controller for a normal mode operation.
    Type: Grant
    Filed: June 29, 2007
    Date of Patent: February 23, 2010
    Assignee: Hynix Semiconductor, Inc.
    Inventors: Kyung-Hoon Kim, Yong-Ki Kim
  • Patent number: 7630271
    Abstract: A semiconductor memory device is presented that exhibits an enhanced read/write data retrieval efficiency brought about in part by a uniquely shared column array communication scheme. The semiconductor memory device includes: at least one group of banks, the banks being disposed adjacent to each other to form a radially symmetrical arrangement of banks having a row and column geometry; and a column decoder array is positioned between pairs of vertically disposed banks in which the column decoder array communicates with this pair of vertically disposed banks so that a single column select signal from the column decoder array can be used to select a given memory cell of the one bank of this vertically disposed banks.
    Type: Grant
    Filed: July 16, 2007
    Date of Patent: December 8, 2009
    Assignee: Hynix Semiconductor Inc.
    Inventors: Dong Keun Kim, Yong Ki Kim
  • Publication number: 20090116601
    Abstract: A clock data recovery (CDR) circuit occupies a small area required in a high-integration semiconductor device, electronic device and system and is easy in design modification. The CDR circuit includes a digital filter configured to filter phase comparison result signals received during predetermined periods and output control signals, a driver configured to control the digital filter by adjusting the predetermined periods, and an input/output circuit configured to recognize an input and output of data and clock in response to the control signals.
    Type: Application
    Filed: December 28, 2007
    Publication date: May 7, 2009
    Inventors: Kyung-Hoon Kim, Jong-Ho Kang, Yong-Ki Kim, Dae-Han Kwon, Sang-Yeon Byeon
  • Publication number: 20090086564
    Abstract: A semiconductor memory device is capable of securing margins of setup/hold times for receiving addresses. The device includes an address buffering unit, a data input/output line, a selecting unit and an output circuit. The address buffering unit buffers input addresses. The data input/output line transfers data with a cell array. The selecting unit selectively outputs the buffered addresses transferred from the address buffering unit and the data transferred through the data input/output line according to modes of the device. The output circuit latches an output of the selecting unit to be outputted from the device.
    Type: Application
    Filed: June 10, 2008
    Publication date: April 2, 2009
    Applicant: Hynix Semiconductor, Inc.
    Inventors: Sun-Suk YANG, Yong-Ki Kim
  • Publication number: 20090066363
    Abstract: A semiconductor memory device includes a code channel for outputting a plurality of code signals based on a code control signal inputted from an external source; a termination resistor decoder for decoding a chip selection signal, an on die termination (ODT) control signal and the plurality of code signals and outputting a plurality of selection signals based on decoded signals; and an ODT block for providing an output data pad with impedance of a termination resistor which is selected in response to the plurality of selection signals.
    Type: Application
    Filed: October 24, 2008
    Publication date: March 12, 2009
    Inventors: Yong-Ki Kim, Kyung-Hoon Kim
  • Patent number: 7449914
    Abstract: A semiconductor memory device includes a code channel for outputting a plurality of code signals based on a code control signal inputted from an external source; a termination resistor decoder for decoding a chip selection signal, an on die termination (ODT) control signal and the plurality of code signals and outputting a plurality of selection signals based on decoded signals; and an ODT block for providing an output data pad with impedance of a termination resistor which is selected in response to the plurality of selection signals.
    Type: Grant
    Filed: June 26, 2006
    Date of Patent: November 11, 2008
    Assignee: Hynix Semiconductor Inc.
    Inventors: Yong-Ki Kim, Kyung-Hoon Kim
  • Publication number: 20080123461
    Abstract: A semiconductor memory device is presented that exhibits an enhanced read/write data retrieval efficiency brought about in part by a uniquely shared column array communication scheme. The semiconductor memory device includes: at least one group of banks, the banks being disposed adjacent to each other to form a radially symmetrical arrangement of banks having a row and column geometry; and a column decoder array is positioned between pairs of vertically disposed banks in which the column decoder array communicates with this pair of vertically disposed banks so that a single column select signal from the column decoder array can be used to select a given memory cell of the one bank of this vertically disposed banks.
    Type: Application
    Filed: July 16, 2007
    Publication date: May 29, 2008
    Inventors: Dong Keun KIM, Yong Ki KIM