Patents by Inventor Hyun-Seok Lee

Hyun-Seok 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).

  • Publication number: 20140151530
    Abstract: A method of operating an image sensor includes: thermoelectrically cooling a pixel using a thermoelectric element having a thermoelectric-junction integrated to the pixel; and performing a photoelectric conversion operation using the thermoelectric element. An image sensor includes a pixel and a readout circuit. The pixel includes a thermoelectric element having a thermoelectric-junction, and the readout circuit is configured to control the pixel such that the thermoelectric element performs a thermoelectric-cooling operation and a photoelectric conversion operation.
    Type: Application
    Filed: November 7, 2013
    Publication date: June 5, 2014
    Inventors: Tae Yon LEE, Jung Kyu JUNG, Yoon Dong PARK, Hyun Seok LEE
  • Publication number: 20140147727
    Abstract: Provided are a cathode active material having high capacity and excellent lifetime characteristics as well as being inexpensive by mixing transition metal oxide having high irreversible capacity with composite dimensional manganese oxide (CDMO) of the following Chemical Formula 1, which has high capacity and good lifetime characteristics but is difficult to be charged and discharged by being used alone, and a lithium secondary battery including the cathode active material: xMnO2ยท(1?x)Li2MnO3(0<x<1).
    Type: Application
    Filed: November 22, 2013
    Publication date: May 29, 2014
    Applicant: LG CHEM, LTD.
    Inventors: Jung Hwan PARK, Hyun Seok LEE, Youn Kyoung LEE, Ji Hee AHN, Hoe Jin HAH
  • Publication number: 20140073018
    Abstract: Disclosed is a method for the preparation of carbamic acid (R)-1-aryl-2-tetrazolyl-ethyl esters, comprising the enantioselective enzyme reduction of a 1-aryl-2-tetrazolyl-ethyl ketone to form a (R)-1-aryl-2-tetrazolyl-ethyl alcohol and the carbamation of said alcohol.
    Type: Application
    Filed: February 26, 2013
    Publication date: March 13, 2014
    Applicant: SK BIOPHARMACEUTICALS CO. LTD.
    Inventors: Sang Chul Lim, Moo Yong Uhm, Dae Won Lee, Hui Ho Kim, Dong Ho Lee, Hyun Seok Lee
  • Publication number: 20130334640
    Abstract: An image sensor includes a dielectric layer including a reflector, a photo-electric conversion region on the dielectric layer, and a resonance layer on the photo-electric conversion region, the resonance layer including ribbed materials arranged in a concentric pattern.
    Type: Application
    Filed: March 15, 2013
    Publication date: December 19, 2013
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Hyun Seok LEE
  • Publication number: 20130283117
    Abstract: Provided is a low-density parity-check (LDPC) code decoder and a decoding method. The decoding method may include calculating a message of a variable node (V-node), calculating a message of a check node (C-node), and calculating log-likelihood ratio (LLR) data of a channel using the message of the V-node and the message of the C-node.
    Type: Application
    Filed: April 15, 2013
    Publication date: October 24, 2013
    Applicants: KWANGWOON UNIVERSITY INDUSTRY-ACADEMIC COLLABORATION FOUNDATION, SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Ho YANG, Hyun Seok LEE, Seong Sam SEO, Young Seok LEE
  • Publication number: 20130257362
    Abstract: There are provided a thin film coil and an electronic device having the same, the thin film coil including a substrate; and a coil pattern including a first coil strand and a second coil strand formed on both surfaces of the substrate, respectively, wherein the first coil strand formed on one surface of the substrate includes at least one gyration path that passes through the other surface of the substrate and gyrates.
    Type: Application
    Filed: June 26, 2012
    Publication date: October 3, 2013
    Inventors: Dae Ki LIM, Tae Sung KIM, Hyeon Gil NAM, Chan Gwang AN, Hyun Seok LEE, Ki Won CHANG, Chang Mok HAN, Sang Woo BAE, Sung Eun CHO, Jae Suk SUNG
  • Patent number: 8501436
    Abstract: Disclosed is a method for the preparation of carbamic acid (R)-1-aryl-2-tetrazolyl-ethyl ester, comprising the asymmetric reduction of arylketone and the carbamation of alcohol.
    Type: Grant
    Filed: October 14, 2009
    Date of Patent: August 6, 2013
    Assignee: SK Biopharmaceuticals Co. Ltd.
    Inventors: Sang Chul Lim, Moo Yong Uhm, Nahm Ryune Cho, Dae Won Lee, Ju Young Lee, Hui Ho Kim, Dong Ho Lee, Hyun Seok Lee, Se Il Lee
  • Publication number: 20130099729
    Abstract: The wireless charging apparatus according to the preferred embodiment of the present invention includes a control unit performing a general control of a wireless charging process; a driving unit connected to the control unit to generate a wireless power signal to be transmitted according to the control of the control unit; a transmission coil unit connected to the driving unit as a coil structure in a dumbbel form and transmitting wireless power according to the wireless power signal, the turn loop having a major-axis side of which one side is longer than the other side and at least one area is formed in a form depressed inwardly; and a sensing unit connected between the transmission coil unit and the control unit to detect whether the wireless charging receiver is positioned corresponding to the transmission coil unit and transfer the detected state to the control unit.
    Type: Application
    Filed: January 17, 2012
    Publication date: April 25, 2013
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Jung Ho YOON, Young Seok YOON, Kwang Du LEE, Hyun Seok LEE, Eung Ju KIM, Sam Ki JUNG
  • Publication number: 20130082649
    Abstract: Disclosed herein is a wireless charging system that includes a transmission device including a primary coil and a reception device including a secondary coil, wherein the transmission device detects an input signal provided from the primary coil to generate an output signal in the form of a pulse, and compares the level of the generated output signal with a reference voltage to generate a detection signal for determining the presence or absence of the reception device. The wireless charging system does not require an analog-to-digital converter (ADC), eliminating the necessity of using an ADC chip or a high-priced control circuit including an ADC block, thus reducing a material cost of the system. In addition, since the wireless charging system does not require a software algorithm for processing an ADC signal, the performance can be improved.
    Type: Application
    Filed: September 14, 2012
    Publication date: April 4, 2013
    Inventors: Hyun Seok LEE, Young Seok YOON, Sam Ki JUNG, Eung Ju KIM
  • Patent number: 8404461
    Abstract: Disclosed is a method for the preparation of carbamic acid (R)-1-aryl-2-tetrazolyl-ethyl esters, comprising the enantioselective enzyme reduction of a 1-aryl-2-tetrazolyl-ethyl ketone to form a (R)-1-aryl-2-tetrazolyl-ethyl alcohol and the carbamation of said alcohol.
    Type: Grant
    Filed: October 14, 2010
    Date of Patent: March 26, 2013
    Assignee: SK Biopharmaceutical Co. Ltd.
    Inventors: Sang Chul Lim, Moo Yong Uhm, Dae Won Lee, Hui Ho Kim, Dong Ho Lee, Hyun Seok Lee
  • Patent number: 8353568
    Abstract: Disclosed herein is an inkjet head driving apparatus. The inkjet head driving apparatus includes a multi pulse generator that receives a trigger signal, and converts and outputs the trigger signal into a multi pulse signal; an amplifier that amplifies the multi pulse signal output from the multi pulse generator; and a controller that controls the number of pulses of the multi pulse signal generated from the multi pulse generator.
    Type: Grant
    Filed: September 9, 2010
    Date of Patent: January 15, 2013
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventor: Hyun Seok Lee
  • Publication number: 20120311302
    Abstract: A parallel operation processing apparatus and method using a Single Instruction Multiple Data (SIMD) processor are provided. The parallel operation processing apparatus may combine input data of source nodes in a current column with input data of source nodes in a previous column, and may store the combined input data.
    Type: Application
    Filed: February 2, 2012
    Publication date: December 6, 2012
    Inventors: Ho Yang, Hyun Seok Lee
  • Publication number: 20120293576
    Abstract: A device and a method for managing a piezo inkjet head. The device includes: a piezo actuator connected to an inkjet head to generate pressure; a driver that controls driving of the piezo actuator; a sensing resistor connected between the driver and the piezo actuator, a signal amplifier connected across the sensing resistor to amplify the signal applied to the sensing resistor; a signal processor that removes noise of the signal output from the signal amplifier; a controller that determines a signal passing through the signal processor as a reference signal in a state in which bubbles are not introduced into the inkjet head; and a storage unit that stores the signal determined as the reference signal in the controller. The controller calculates a difference between the signal passing through the signal processor and the reference signal to generate a detection signal and determine a state of the inkjet head.
    Type: Application
    Filed: April 16, 2012
    Publication date: November 22, 2012
    Inventors: Byung Hun Kim, Hyun Seok Lee
  • Publication number: 20120173598
    Abstract: An apparatus and method for processing a division of a binary polynomial are provided. The apparatus includes a plurality of exclusive OR (XOR) operators that may perform a selective XOR operation with respect to a conditional bit of a dividend polynomial. The plurality of XOR operators may perform selective XOR operations in parallel and accordingly, a division of a binary polynomial may be rapidly performed.
    Type: Application
    Filed: December 13, 2011
    Publication date: July 5, 2012
    Inventors: Ho YANG, Hyun Seok LEE, Ji Hoon BANG, Young Hwan PARK, Ki Taek BAE, Kyeong Yeon KIM
  • Publication number: 20120113175
    Abstract: Disclosed herein is a driving apparatus for an inkjet printer head including: a controller generating and outputting pulse control signals for driving an inkjet printer head; a level switching unit operated to be switched according to the pulse control signals to output a predetermined level of switching signals; a driver selectively controlling a plurality of nozzles by using the driving waveforms generated by combining the switching signals, whereby the inkjet printer head can be implemented simpler at low cost.
    Type: Application
    Filed: January 27, 2011
    Publication date: May 10, 2012
    Applicant: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Hyun Seok Lee, Na Rae Park, Chang Soo Kang
  • Publication number: 20120013607
    Abstract: A method of generating a mouse pointer which has a predetermined depth within a three-dimensional (3D) image includes extracting depth information of at least one object of a 3D image, determining a location of a mouse pointer within the 3D image, and processing the mouse pointer to have a predetermined depth in the determined location by using the extracted depth information. Accordingly, a user enjoys an enhanced 3D effect by generating and displaying a mouse pointer having a predetermined depth in a location of the changed mouse pointer if the location of the mouse pointer is changed by using a pointing unit.
    Type: Application
    Filed: May 12, 2011
    Publication date: January 19, 2012
    Applicant: Samsung Electronics Co., Ltd
    Inventor: Hyun-seok LEE
  • Publication number: 20120007910
    Abstract: Disclosed herein is an apparatus for inspecting an inkjet head. The apparatus for inspecting an inkjet head includes a scan unit that is connected to the piezoelectric actuator of an inkjet head to measure whether the capacitance of the piezoelectric actuator is changed; a pulse input unit that applies high voltage pulses to the scan unit; a switching unit that connects or disconnects the scan unit to or from the piezoelectric actuator and the pulse input unit; and a controller that controls the switching unit to connect the scan unit to the piezoelectric actuator and the pulse input unit and receives the information on whether the capacitance of the piezoelectric actuator is changed according to the applied high voltage pulse from the scan unit to determine whether the piezoelectric actuator is abnormal.
    Type: Application
    Filed: November 9, 2010
    Publication date: January 12, 2012
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventor: Hyun Seok Lee
  • Publication number: 20110311869
    Abstract: A high capacity lithium secondary battery includes a lithium manganese oxide having a layered structure exhibiting a great irreversible capacity in the event of overcharging at a high voltage and a spinel-based lithium manganese oxide. Because it is activated at a high voltage of 4.45 V or higher based on a positive electrode potential, additional lithium for utilizing a 3V range of the spinel-based lithium manganese oxide can be provided and an even profile in the entire SOC area can be obtained. Because the lithium secondary battery includes the mixed positive electrode active material including the spinel-based lithium manganese oxide and the lithium manganese oxide having a layered structure, and is charged at a high voltage, its stability can be improved. Also, the high capacity battery having a large available SOC area and improved stability without causing an output shortage due to a rapid voltage drop in the SOC area can be implemented.
    Type: Application
    Filed: June 23, 2011
    Publication date: December 22, 2011
    Applicant: LG CHEM, LTD.
    Inventors: Song Taek OH, Sun Kyu KIM, Geun Chang CHUNG, Sin Kyu KIM, Hyun Seok LEE, Bong Kook YOUN
  • Publication number: 20110298851
    Abstract: Disclosed herein is an inkjet head driving apparatus. The inkjet head driving apparatus includes a multi pulse generator that receives a trigger signal, and converts and outputs the trigger signal into a multi pulse signal; an amplifier that amplifies the multi pulse signal output from the multi pulse generator; and a controller that controls the number of pulses of the multi pulse signal generated from the multi pulse generator.
    Type: Application
    Filed: September 9, 2010
    Publication date: December 8, 2011
    Applicant: SAMSUNG ELECTRO-MECHANICS CO.,LTD.
    Inventor: Hyun Seok Lee
  • Publication number: 20110167270
    Abstract: A key authentication method between a user equipment (UE) and a serving network (SN) for binary CDMA network and a key re-authentication method during which the UE performs a handover within the same SN in binary CDMA network are provided. The key authentication method for the user equipment includes receiving a terminal authentication request message from a wireless access point, transmitting a terminal authentication response message that includes identification information for the user terminal, receiving user authentication request message that includes at least two random numbers and code information for message authentication from the wireless access point, and transmitting a user authentication response message that comprises first information that is generated using a master key.
    Type: Application
    Filed: January 26, 2010
    Publication date: July 7, 2011
    Inventors: Jang Yeon LEE, Okyeon Yi, Jin Woong Cho, Hyun Seok Lee, Ju Sung Kang