Patents by Inventor Cheol Ho Lee

Cheol Ho Lee 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: 8365000
    Abstract: A computer system. The computer system includes memory units; a power supply to supply power to the memory units; and a controller to controls the supply of power the plurality of memory units so as to intercept power supplied from the power supply to at least one of the memory units, among according to user input.
    Type: Grant
    Filed: May 30, 2007
    Date of Patent: January 29, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Cheol-ho Lee
  • Patent number: 8274851
    Abstract: A memory controller, a PCB and a computer system employing the memory controller, and a memory adjusting method using the memory controller. The memory controller interfaces data reading from and writing to a memory and includes: a characteristic estimating part estimating a characteristic of a memory output signal outputted from the memory for the data reading and writing; and a characteristic adjusting part controlling the memory so that the characteristic of the memory output signal is within a predetermined reference range if the characteristic of the memory output signal estimated by the characteristic estimating part is beyond the predetermined reference range.
    Type: Grant
    Filed: June 1, 2011
    Date of Patent: September 25, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Man-Hee Lee, Cheol-Ho Lee
  • Publication number: 20120168894
    Abstract: A hard mask composition, a method of forming a pattern, and a semiconductor integrated circuit device, the hard mask composition including a solvent; and an aromatic ring-containing compound, the aromatic ring-containing compound including at least one of a moiety represented by the following Chemical Formula 1 and a moiety represented by the following Chemical Formula 2:
    Type: Application
    Filed: September 23, 2011
    Publication date: July 5, 2012
    Inventors: Min-Soo Kim, Hwan-Sung Cheon, Jee-Yun Song, Young-Min Kim, Cheol-Ho Lee, Chung-Heon Lee
  • Patent number: 8139056
    Abstract: A power generating module is provided in an LCD where the power generating module includes a first driving voltage generator, a second driving voltage generator and an output deviation controller. The first driving voltage generator generates and outputs a first set of LCD driving voltages including a first liquid crystal driving voltage and a first gate-on-voltage. The second driving voltage generator generates and outputs a similar second set of LCD driving voltages. The output deviation controller controls the first and second driving voltage generators using one or more feedback signals each corresponding to a potential difference between counterpart output voltages of the first driving voltage and the second driving voltage to reduce output deviations between those counterpart output voltages.
    Type: Grant
    Filed: August 18, 2008
    Date of Patent: March 20, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Cheol Ho Lee, Hyeon Seok Bae, Sang Chul Lee
  • Publication number: 20110231620
    Abstract: A memory controller, a PCB and a computer system employing the memory controller, and a memory adjusting method using the memory controller. The memory controller interfaces data reading from and writing to a memory and includes: a characteristic estimating part estimating a characteristic of a memory output signal outputted from the memory for the data reading and writing; and a characteristic adjusting part controlling the memory so that the characteristic of the memory output signal is within a predetermined reference range if the characteristic of the memory output signal estimated by the characteristic estimating part is beyond the predetermined reference range.
    Type: Application
    Filed: June 1, 2011
    Publication date: September 22, 2011
    Applicant: SAMSUNG ELECTRONICS CO. LTD.
    Inventors: Man-hee LEE, Cheol-ho LEE
  • Publication number: 20110219454
    Abstract: Provided is a method of identifying an ActiveX control distribution site, detecting a security vulnerability in an ActiveX control and immunizing the same. A security vulnerability existing in an ActiveX control may be automatically detected, effects brought on by the corresponding security vulnerability may be measured, and abuse of the detected security vulnerability in a user PC to be protected may be immediately prevented. Therefore, since the user PC may be protected regardless of a security patch, it is anticipated that security problems in the Internet environment caused by imprudent use of the ActiveX control may be significantly enhanced.
    Type: Application
    Filed: November 11, 2010
    Publication date: September 8, 2011
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Cheol Ho LEE, Dong Hyun LEE, Soo Yong KIM, Hyung Geun OH
  • Patent number: 7978546
    Abstract: A memory controller, a PCB and a computer system employing the memory controller, and a memory adjusting method using the memory controller. The memory controller interfaces data reading from and writing to a memory and includes: a characteristic estimating part estimating a characteristic of a memory output signal outputted from the memory for the data reading and writing; and a characteristic adjusting part controlling the memory so that the characteristic of the memory output signal is within a predetermined reference range if the characteristic of the memory output signal estimated by the characteristic estimating part is beyond the predetermined reference range.
    Type: Grant
    Filed: January 13, 2009
    Date of Patent: July 12, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Man-hee Lee, Cheol-ho Lee
  • Publication number: 20100201698
    Abstract: A method of controlling timing signals includes; selectively providing both master control data and slave control data, which are included in control data, to a memory part based on a write enable signal provided form an external device, reading control data stored in the memory part in response to a reset signal provided from an external device, and controlling output timing of at least one power voltage based on the stored control data.
    Type: Application
    Filed: July 13, 2009
    Publication date: August 12, 2010
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Cheol-Ho LEE
  • Patent number: 7689841
    Abstract: A USB circuit device prevents reverse current while complying with USB specifications. A USB circuit device includes a connector unit to which a USB device is connected; a power supplying unit supplying power with the USB device through the connector unit; a switching unit flowing current induced into the connector unit from the USB device, into a ground selectively; and a controller controlling the switching unit to flow the current induced into the connector unit, into the ground if a level of the power provided with the USB device by the power supplying unit is less than a predetermined value. Accordingly, there is provided a USB circuit device for preventing reverse current from an external device and capable of protecting the circuit from over current with satisfaction to a USB specification.
    Type: Grant
    Filed: October 16, 2006
    Date of Patent: March 30, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Cheol-ho Lee
  • Publication number: 20100005253
    Abstract: A memory controller, a PCB and a computer system employing the memory controller, and a memory adjusting method using the memory controller. The memory controller interfaces data reading from and writing to a memory and includes: a characteristic estimating part estimating a characteristic of a memory output signal outputted from the memory for the data reading and writing; and a characteristic adjusting part controlling the memory so that the characteristic of the memory output signal is within a predetermined reference range if the characteristic of the memory output signal estimated by the characteristic estimating part is beyond the predetermined reference range.
    Type: Application
    Filed: January 13, 2009
    Publication date: January 7, 2010
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Man-hee LEE, Cheol-ho LEE
  • Publication number: 20090167984
    Abstract: A backlight unit, and a display device having the backlight unit, includes a light source, the light source formed to directly illuminate a display panel, and an optical plate arranged over the light source, wherein the optical plate includes a first surface and a second surface that faces the first surface, and the first surface is different in height from the second surface.
    Type: Application
    Filed: September 26, 2008
    Publication date: July 2, 2009
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sang-Hoon LEE, Hyeon-Seok BAE, Cheol-Ho LEE
  • Publication number: 20090073154
    Abstract: Provided are a power generating module and an LCD having the same. The power generating module includes a first driving voltage generator, a second driving voltage generator and an output deviation controller. The first driving voltage generator generates and outputs a first driving voltage including a first liquid crystal driving voltage and a first gate-on-voltage. The second driving voltage generator generates and outputs a second driving voltage including a second liquid crystal driving voltage and a second gate-on-voltage. The output deviation controller controls the first and second driving voltage generators using a feedback signal corresponding to a potential difference between the first driving voltage and the second driving voltage to reduce output deviation between the first driving voltage and the second driving voltage.
    Type: Application
    Filed: August 18, 2008
    Publication date: March 19, 2009
    Inventors: Cheol Ho Lee, Hyeon Seak Bae, Sang Chul Lee
  • Publication number: 20090021507
    Abstract: A driving device includes an output timing controller which controls an output timing of a first driving voltage and a second driving voltage respectively generated from a first voltage generator and a second voltage generator. A third driving voltage output from the output timing controller is provided to a first data driver and a second data driver, and also provided to a gamma voltage generator to generate a plurality of gamma voltages. Accordingly, a reverse electric potential between the third driving voltage and the gamma voltages is prevented from being generated in the first and second data drivers, therefore, preventing the first and second data drivers from being damaged.
    Type: Application
    Filed: June 25, 2008
    Publication date: January 22, 2009
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hyeon-Seok BAE, Sang-Hoon LEE, Cheol-Ho LEE, Hun-Tae KIM
  • Publication number: 20080104437
    Abstract: A computer system. The computer system includes memory units; a power supply to supply power to the memory units; and a controller to controls the supply of power the plurality of memory units so as to intercept power supplied from the power supply to at least one of the memory units, among according to user input.
    Type: Application
    Filed: May 30, 2007
    Publication date: May 1, 2008
    Applicant: Samsung Electronics Co., Ltd.
    Inventor: Cheol-ho Lee
  • Publication number: 20070088964
    Abstract: A USB circuit device prevents reverse current while complying with USB specifications. A USB circuit device includes a connector unit to which a USB device is connected; a power supplying unit supplying power with the USB device through the connector unit; a switching unit flowing current induced into the connector unit from the USB device, into a ground selectively; and a controller controlling the switching unit to flow the current induced into the connector unit, into the ground if a level of the power provided with the USB device by the power supplying unit is less than a predetermined value. Accordingly, there is provided a USB circuit device for preventing reverse current from an external device and capable of protecting the circuit from over current with satisfaction to a USB specification.
    Type: Application
    Filed: October 16, 2006
    Publication date: April 19, 2007
    Applicant: Samsung Electronics Co., Ltd.
    Inventor: Cheol-ho Lee
  • Patent number: 7185166
    Abstract: A method of controlling a computer having a plurality of memory buses adapted to be operated in a multi-channel mode by reading memory information of at, least one of a plurality of memory modules connected to the respective memory buses and displaying whether the plurality of the memory buses can operate and/or are operating in the multi-channel mode by comparing the read memory information. Thus, a user can confirm whether a plurality of memory buses operate in a multi-channel mode.
    Type: Grant
    Filed: July 9, 2003
    Date of Patent: February 27, 2007
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Cheol-Ho Lee
  • Publication number: 20060007758
    Abstract: A method and apparatus for setting column address strobe (CAS) latency and frequency for heterogeneous memories are provided. The method includes obtaining setting information related to CAS latencies and frequencies supported by two or more memories, and comparing the CAS latencies supported by the memories with one another and setting a highest frequency among the frequencies that all of the memories have in common as a common frequency for the memories if the memories have one or more CAS latencies in common.
    Type: Application
    Filed: July 7, 2005
    Publication date: January 12, 2006
    Inventor: Cheol-Ho Lee
  • Publication number: 20040117581
    Abstract: A method of controlling a computer having a plurality of memory buses adapted to be operated in a multi-channel mode by reading memory information of at, least one of a plurality of memory modules connected to the respective memory buses and displaying whether the plurality of the memory buses can operate and/or are operating in the multi-channel mode by comparing the read memory information. Thus, a user can confirm whether a plurality of memory buses operate in a multi-channel mode.
    Type: Application
    Filed: July 9, 2003
    Publication date: June 17, 2004
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Cheol-Ho Lee
  • Patent number: 6489239
    Abstract: The present invention relates to a tungsten chemical vapor deposition method and a method for forming a tungsten plug. The tungsten chemical vapor deposition method of the present invention includes preparing a wafer where a barrier layer is formed. Silane gas is supplied from each of a top of the wafer and a bottom of an edge part of the wafer toward the wafer simultaneously, in order to form a silicon passivation thin film on the top surface and the edge part of the wafer; in order to form a tungsten nucleation on the top surface of the wafer where the passivation thin film is formed. A mixed gas including a tungsten fluoride gas and a silane gas is supplied from the top of the wafer toward the wafer, and at the same time a silane gas is supplied from the bottom of the edge part toward the wafer. A mixed gas including a tungsten fluoride gas and a hydrogen gas is supplied from the top of the wafer toward the wafer, in order to deposit a sufficiently thick tungsten on the surface of the wafer.
    Type: Grant
    Filed: November 28, 2000
    Date of Patent: December 3, 2002
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Woo Sung Jang, Cheol Ho Lee
  • Patent number: D434413
    Type: Grant
    Filed: December 29, 1999
    Date of Patent: November 28, 2000
    Assignee: Daewoo Telecom Ltd.
    Inventor: Cheol Ho Lee