Patents by Inventor Hak Soo Kim

Hak Soo 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).

  • Publication number: 20100164592
    Abstract: A level shift circuit. A level shift circuit may include a first voltage supply control unit connected to a first voltage terminal to control a supply of a first voltage via a first and/or second path according to statuses of first and/or second input signals inputted differentially, a second voltage supply control unit connected to a second voltage terminal to control a supply of a second voltage via a first and/or second path, a switching unit controlling a connection between first and second voltage supply control units on a first and/or second path, and/or a buffer unit outputting an output signal corresponding to a first voltage and/or a second voltage in response to a first potential outputted between a first voltage supply control unit and a switching unit and/or a second potential output between a second voltage supply control unit and a switching unit.
    Type: Application
    Filed: December 17, 2009
    Publication date: July 1, 2010
    Inventors: Hak-Soo Kim, Nam-Jin Song
  • Patent number: 7745054
    Abstract: An electrolyte for a lithium secondary battery includes lithium salts, a non-aqueous organic solvent, and additive compounds, which initiates decomposition at 4V to 5V and show a constant current maintenance plateau region of more than or equal to 0.5V at measurement of LSV (linear sweep voltammetry). The additive compounds added to the electrolyte of the present invention decompose earlier than the organic solvent to form a conductive polymer layer on the surface of a positive electrode by increased electrochemical energy and heat at overcharge. The conductive polymer layer prevents decomposition of the organic solvent. Accordingly, the electrolyte inhibits gas generation caused by decomposition of the organic solvent during high temperature storage, and also improves safety of the battery during overcharge.
    Type: Grant
    Filed: April 2, 2004
    Date of Patent: June 29, 2010
    Assignees: Samsung SDI Co., Ltd., Cheil Industries, Inc.
    Inventors: Jin-Hee Kim, Jin-Sung Kim, Sang-Moon Hwang, Meen-Seon Paik, Hak-Soo Kim
  • Publication number: 20100092311
    Abstract: The present invention provides a displacement control valve for a variable displacement compressor, the displacement control valve including a valve housing, in which a discharge chamber passage and a crank chamber passage are provided, and a valve body for opening and closing the valve, characterized in that a motor rotates the valve body to open and close the valve. Therefore, the present invention can reduce the overall length of the displacement control valve to reduce the size of the compressor, thereby achieving a compact structure of the compressor.
    Type: Application
    Filed: October 8, 2009
    Publication date: April 15, 2010
    Applicants: DOOWON TECHNICAL COLLEGE, DOOWON ELECTRONIC CO., LTD
    Inventors: Hak-soo Kim, Young-il Chang, Yong-ju Lee, Ki-jung An, Geon-ho Lee
  • Publication number: 20100045704
    Abstract: A method of changing a display mode in a car navigation system, the method including: acquiring distance information from a current vehicle location to a guide point; and gradually changing the display mode into any one of a two-dimensional display mode and a three-dimensional display mode based on the distance information.
    Type: Application
    Filed: September 20, 2007
    Publication date: February 25, 2010
    Applicant: THINKWARE SYSTEMS CORPORATION
    Inventor: Hak-Soo Kim
  • Publication number: 20090226820
    Abstract: The present invention relates to a nonaqueous electrolyte for a battery, and more particularly to a novel nonaqueous electrolyte for a battery in which a furanone based derivative is added to a conventional nonaqueous electrolyte for the lithium battery to inhibit decomposition of the electrolyte, and thereby the rate of increase of the battery thickness when it is allowed to stand at a high temperature is significantly decreased and capacity storage characteristics at high temperature are improved.
    Type: Application
    Filed: October 27, 2004
    Publication date: September 10, 2009
    Applicant: CHEIL INDUSTRIES, INC.
    Inventors: Jong Ho Jeon, Ho Seok Yang, Jung Kang Oh, Hak Soo Kim, Jong Seob Kim
  • Patent number: 7561125
    Abstract: Data drive circuit for a current writing type AMOEL display panel including a plurality of current output channels, and a plurality of channel current generating circuits on respective current output channels for minimizing a difference of current levels occurred between the current output channels, each inclusive of one pair of transistors, a current generating part for generating a current of a small deviation proportional to square of a difference of threshold voltages of the one pair of the transistors, and a current mirror part for mirroring the current, and forwarding the mirrored current as a channel current for the channel, thereby minimizing a difference of current levels occurred between output channels, and driving the AMOEL display panel uniformly.
    Type: Grant
    Filed: October 14, 2005
    Date of Patent: July 14, 2009
    Assignee: LG Display Co., Ltd.
    Inventors: Hak Soo Kim, Young Sun Na, Oh Kyoung Kwan
  • Patent number: 7553588
    Abstract: An electrolyte for a lithium secondary battery includes lithium salts, a non-aqueous organic solvent, and additive compounds. The additive compounds added to the electrolyte of the present invention decompose earlier than the organic solvent to form a conductive polymer layer on the surface of a positive electrode, and prevent decomposition of the organic solvent. Accordingly, the electrolyte inhibits gas generation caused by decomposition of the organic solvent at initial charging, and thus reduces an increase of internal pressure and swelling during high temperature storage, and also improves safety of the battery during overcharge.
    Type: Grant
    Filed: September 10, 2003
    Date of Patent: June 30, 2009
    Assignees: Samsung SDI Co., Ltd., Cheil Industries Inc.
    Inventors: Jin-Hee Kim, Jin-Sung Kim, Sang-Moon Hwang, Meen-Seon Paik, Hak-Soo Kim
  • Publication number: 20090088970
    Abstract: A method of displaying a background sky in a navigation system, the method including: storing and maintaining map data and background sky image data with respect to one or more directions of the map data in a database; detecting a driving direction angle of a vehicle; computing a position of a background sky image corresponding to the detected driving direction angle; extracting background sky image data corresponding to the computed position of the background sky image from the database; and displaying the extracted background sky image data as a background sky with respect to the map data.
    Type: Application
    Filed: January 26, 2007
    Publication date: April 2, 2009
    Applicant: THINKWARE SYSTEMS CORPORATION
    Inventor: Hak Soo Kim
  • Publication number: 20090073503
    Abstract: A device and method for imaging dual sided documents for authentification of the document. A document such as a driver's license traverses a linear flowpath into and out of a housing having a darkened interior. The document is segmentally imaged under a plurality of different light spectrums during travel along the flowpath. A data processor and software engaged to an imager capturing the segmented images assembles complete images of the document under one or a plurality of the light spectrums employed to yield a viewable rendition of both sides of the document to ascertain the presence of proper indica to validate the document. Also provided are a magnetic strip reader and bar code reader engaged to the data processor wherein data may be extracted therefrom for comparison to the images reviewed.
    Type: Application
    Filed: May 28, 2008
    Publication date: March 19, 2009
    Inventors: Ali Lebaschi, Hak-Soo Kim
  • Publication number: 20090023075
    Abstract: A non-aqueous electrolyte for a lithium secondary battery includes a lithium salt, a basic organic solvent including a carbonate-based solvent, and a halogenated diphenyl ether compound represented by Formula 1: wherein Y is —O— or —R1—OR2—, where R1 and R2 are the same or different, and R1 and R2 are a C1-C5 alkyl group, an alkenyl group, or an alkoxy group, and only one of the phenyl rings is substituted with a halogen X1, where n is equal to 1, 2, 3, or 4 and the halogens in di-, tri-, and tetra-halogen substitutions are the same or different.
    Type: Application
    Filed: July 9, 2008
    Publication date: January 22, 2009
    Inventors: Jung Kang Oh, Young Jai Cho, Jeong Min Lee, Hak Soo Kim, Ho Seok Yang
  • Patent number: 7459240
    Abstract: A nonaqueous electrolyte for a battery having explosion inhibiting properties includes an organic solvent and a lithium salt. A benzene-substituted phosphate derivative is provided at a level in a range from about 0.1% to about 10% by weight. The benzene-substituted phosphate derivative can be expressed by the following formula: wherein R represents a halogen-substituted C1-C8 alkyl or allyl compound or an unsubstituted C1-C8 alkyl or allyl compound, and n is an integer between 1 and 3.
    Type: Grant
    Filed: October 27, 2004
    Date of Patent: December 2, 2008
    Assignee: Cheil Industries, Inc.
    Inventors: Jong Ho Jeon, Hak Soo Kim, Jong Seob Kim
  • Patent number: 7389088
    Abstract: A method of controlling signal power level and a Bluetooth device for performing the same are provided. The method for controlling a power level of a signal to be transmitted to a remote Bluetooth device via a Bluetooth link, comprises: a local Bluetooth device for receiving a first signal from a remote Bluetooth device for determining if the remote Bluetooth device is providing a request to control a power level of the first signal to be transmitted; determining if a power level of a second signal is to be controlled based on a condition of a wireless link when the remote Bluetooth device does not provide the request to control the power level of the first signal; and controlling the power level of the second signal to be transmitted to the remote Bluetooth device.
    Type: Grant
    Filed: April 26, 2004
    Date of Patent: June 17, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Hak-Soo Kim
  • Publication number: 20080043047
    Abstract: A light source apparatus includes a substrate, cell blocks, a scan driver and a data driver. The cell blocks includes a plurality of sub-pixels located in a matrix type format at intersections between a plurality of scan lines and a plurality of data lines on the substrate. The scan driver supplies scan signals to the cell blocks through the scan lines. The data driver supplies data signals to the cell blocks such that a summation of brightness values of the cell blocks per a frame remains constant during a period and at least one cell block among the cell blocks has a different brightness value from that of another cell block among the cell blocks during respective frame. The period is comprised a predetermined number of frame.
    Type: Application
    Filed: February 16, 2007
    Publication date: February 21, 2008
    Inventors: Sujin Baek, Hak Soo Kim
  • Publication number: 20080032201
    Abstract: A nonaqueous electrolyte for a battery having explosion inhibiting properties includes an organic solvent and a lithium salt. A benzene-substituted phosphate derivative is provided at a level in a range from about 0.1% to about 10% by weight. The benzene-substituted phosphate derivative can be expressed by the following formula: wherein R represents a halogen-substituted C1-C8 alkyl or allyl compound or an unsubstituted C1-C8 alkyl or allyl compound, and n is an integer between 1 and 3.
    Type: Application
    Filed: October 27, 2004
    Publication date: February 7, 2008
    Inventors: Jong Ho Jeon, Hak Soo Kim, Jong Seob Kim
  • Publication number: 20080001865
    Abstract: Provided a light emitting display comprising a substrate, a pixel part located on the substrate, the pixel part comprising a plurality of sub-pixels located at the intersections of a plurality of scan lines and data lines in a matrix type format, a scan driver supplying a scan signal to the pixel part through the scan lines, a data driver converting a data signal and a pre-charge signal corresponding to the data signal into currents through the data lines so as to selectively supply the currents to the pixel part, and a controller applying control signals to the scan driver and the data driver.
    Type: Application
    Filed: February 6, 2007
    Publication date: January 3, 2008
    Inventors: Ji Hun Kim, Hak Soo Kim, Jae Do Lee
  • Patent number: 7255966
    Abstract: A non-aqueous electrolyte for a lithium secondary battery is provided. The electrolyte comprises a lithium salt, a non-aqueous solvent, and an organic compound selected from the group consisting of compounds represented by Formulae (1) to (6): wherein R1 to R12 are each independently selected from the group consisting of primary, secondary, and tertiary alkyl groups, alkenyl groups, and aryl groups; X is hydrogen or halogen; and n and m are numerical values ranging from 0 to 3.
    Type: Grant
    Filed: July 6, 2005
    Date of Patent: August 14, 2007
    Assignee: Samsung SDI Co., Ltd
    Inventors: Jin-Sung Kim, Meen-Seon Paik, Jung-Joon Park, Young-Gyu Kim, Jong-Seob Kim, Hak-Soo Kim, Sang-Jun Lee, Jae-Hou Nah, Sang-Moon Hwang, Chan-Jung Kim
  • Patent number: 7241536
    Abstract: A non-aqueous electrolyte for a lithium secondary battery is provided. The electrolyte comprises a lithium salt, a non-aqueous solvent, and an organic compound selected from the group consisting of compounds represented by Formulae (1) to (6): wherein R1 to R12 are each independently selected from the group consisting of primary, secondary, and tertiary alkyl groups, alkenyl groups, and aryl groups; X is hydrogen or halogen; and n and m are numerical values ranging from 0 to 3.
    Type: Grant
    Filed: May 8, 2002
    Date of Patent: July 10, 2007
    Assignee: Samsung SDI Co., Ltd
    Inventors: Jin-Sung Kim, Meen-Seon Paik, Jung-Joon Park, Young-Gyu Kim, Jong-Seob Kim, Hak-Soo Kim, Sang-Jun Lee, Jae-Hou Nah, Sang-Moon Hwang, Chan-Jung Kim
  • Publication number: 20070155373
    Abstract: A method for executing a menu in a mobile communication terminal. The method includes identifying a particular key among a plurality of keys, identifying a location of the particular key, and assigning a first menu function and at least a second menu function to the particular key based on a combination of the identification and the location of the particular key.
    Type: Application
    Filed: July 14, 2006
    Publication date: July 5, 2007
    Applicant: LG Electronics Inc.
    Inventor: Hak Soo Kim
  • Patent number: 7175396
    Abstract: A compressor that inhales refrigerant gas from an external refrigerant circuit, compresses the inhaled refrigerant gas and discharges the compressed refrigerant gas, comprising a cylinder block having a plurality of bores, and a suction muffler chamber having a suction port connected to an external refrigerant circuit installed on the outer circumferential surface of the cylinder block, a front housing coupled to the front side of the cylinder block and forming a crank chamber, a driving shaft supported so as to freely rotate with respect to the cylinder block and the front housing, a single-headed piston connected to a slanting plate element mounted on the driving shaft and linearly reciprocating inside the bores of the cylinder block, and a rear housing connected to and closing the rear side of the cylinder block, having a discharge chamber and a suction chamber, and having two or more suction chamber connecting passages at an upstream side of the suction chamber.
    Type: Grant
    Filed: September 2, 2003
    Date of Patent: February 13, 2007
    Assignee: Halla Climate Control Corporation
    Inventors: Young Seop Yoon, Hew Nam Ahn, Min Joo Lee, Hak Soo Kim
  • Publication number: 20070028127
    Abstract: A universal serial bus (USB) system includes a host device and at least one client device connected with the host device through a USB connection. In a communication deadlock condition between the host device and client device, the host device interrupts a power supply to the client device and resumes the power supply to the client device after an initialization, wherein the communication condition between the host device and client device is automatically re-established from the deadlock condition.
    Type: Application
    Filed: July 6, 2006
    Publication date: February 1, 2007
    Inventor: Hak-Soo Kim