Patents by Inventor Won Cha

Won Cha 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: 9343161
    Abstract: A semiconductor memory device comprises a memory cell array including a plurality of memory blocks each including a plurality of pages, wherein each of the plurality of pages includes at least one flag cell indicating whether data is in a corresponding page, and a peripheral circuit configured to read data of flag cells of a selected memory block in response to an erase request and to omit an erase operation on the selected memory block based on the data of the flag cells.
    Type: Grant
    Filed: October 17, 2014
    Date of Patent: May 17, 2016
    Assignee: SK hynix Inc.
    Inventors: Seong Hun Park, Jae Won Cha
  • Patent number: 9283957
    Abstract: A hydraulic pressure instruction-learning apparatus of a hybrid vehicle includes a power source including an engine and a motor. The engine clutch is disposed between the engine and the motor. The vehicle controller is configured to output a hydraulic pressure instruction to control engagement/disengagement of the engine clutch. The vehicle controller compares output performance of the engine clutch with predetermined dynamic target performance in a launch control, extracts a performance error function if a difference therebetween exceeds a predetermined allowable error range, and corrects the output performance of the engine clutch, such that the output performance falls within the predetermined allowable error range and is stored as a learned value.
    Type: Grant
    Filed: November 24, 2014
    Date of Patent: March 15, 2016
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION, SNU R&DB FOUNDATION
    Inventors: Seongwook Moon, Daero Park, Seok Min Jeong, Jae Ho Lee, Jung Un An, Hee Yun Lee, Won Sik Lim, Nam Woong Kim, Kyo Bum Lee, Howon Seo, Suk-Won Cha
  • Publication number: 20160018221
    Abstract: Disclosed is a rangefinder comprising: a housing shaped like a cylinder and opened frontward and backward; an object lens comprising one or more lenses arranged in a front end portion of the housing and facing an object targeted for distance measurement; a display providing a user with an image from the object lens; an image split prism arranged in between the object lens and the display, making the image from the object lens be split and focused, and installed movably along an optical axis within the housing so that a space between split images can be adjusted; and a distance indicator indicating distance from the targeted object in accordance with positions of the image split prism, in a state that the position of the image split prism is adjusted to set up the space between the split images to a reference position.
    Type: Application
    Filed: February 5, 2013
    Publication date: January 21, 2016
    Inventor: Jung Won CHA
  • Publication number: 20150266468
    Abstract: A hydraulic pressure instruction-learning apparatus of a hybrid vehicle includes a power source including an engine and a motor. The engine clutch is disposed between the engine and the motor. The vehicle controller is configured to output a hydraulic pressure instruction to control engagement/disengagement of the engine clutch. The vehicle controller compares output performance of the engine clutch with predetermined dynamic target performance in a launch control, extracts a performance error function if a difference therebetween exceeds a predetermined allowable error range, and corrects the output performance of the engine clutch, such that the output performance falls within the predetermined allowable error range and is stored as a learned value.
    Type: Application
    Filed: November 24, 2014
    Publication date: September 24, 2015
    Inventors: Seongwook MOON, Daero PARK, Seok Min JEONG, Jae Ho LEE, Jung Un AN, Hee Yun LEE, Won Sik LIM, Nam Woong KIM, Kyo Bum LEE, Howon SEO, Suk-Won CHA
  • Publication number: 20150236366
    Abstract: Provided is a flexible fuel cell.
    Type: Application
    Filed: December 19, 2014
    Publication date: August 20, 2015
    Applicants: SNU R&DB Foundation, Global Frontier Center for Multiscale Energy Systems
    Inventors: Ik Whang CHANG, Jin Hwan LEE, Tae Hyun PARK, Suk Won CHA, Seung Hwan KO
  • Publication number: 20150227270
    Abstract: A method for creating a site on a user terminal connected by a computer network to a site management system includes providing a plurality of cards having predefined functions to the user terminal; and creating a site including at least one of a page corresponding to a card selected at the user terminal by a user from among the plurality of cards and a page including, as a component, at least one card selected at the terminal. The plurality of cards includes a general card configured through a selection and a combination of components by the user and a function card of which a function and a structure are predetermined.
    Type: Application
    Filed: February 9, 2015
    Publication date: August 13, 2015
    Inventors: Jong Ho Yun, Jungho Jun, Sung Won Cha, Se-Young Kim, Sang Jun Jeon, DongHwan Park
  • Publication number: 20150169642
    Abstract: Methods and systems of making an index page for a website are provided. The methods and systems of making an index page include providing an authoring environment, the authoring environment including a set of content pages of the website and a tool for generating the index page for the website; generating the index page by associating a content page selected from the set of content pages with an index of the index page, the selected content page being selected using the tool; and providing the index page based on a request for the website.
    Type: Application
    Filed: December 3, 2014
    Publication date: June 18, 2015
    Inventors: Seil HWANG, Bo-Hyun KIM, Sung-Won CHA, Yoon-Sil KANG
  • Patent number: 9053767
    Abstract: A semiconductor memory device includes memory blocks including pages connected to plural main cells, a spare block, including pages connected to spare cells, configured to store a random seed for randomization to the spare cells connected to each page, page buffers configured to scramble data inputted for program operation by using random seed read from a page of the spare block selected by a control signal to transmit the scrambled data to the bit line, and configured to descramble data read from a main cell selected for read operation and output the descrambled data, and a controller configured to output the control signal to select a page of the spare block corresponding to an address of a page of the memory block selected for the programming or reading, and configured to control a scramble operation and a descramble operation of the page buffers.
    Type: Grant
    Filed: August 30, 2012
    Date of Patent: June 9, 2015
    Assignee: SK Hynix Inc.
    Inventor: Jae Won Cha
  • Publication number: 20150155572
    Abstract: Disclosed herein is a flexible fuel cell, including: (i) an anode comprising an anode end plate structure made of a polymer material and provided with a hydrogen flow channel and a collector made of a metal layer deposited on the anode end plate structure; (ii) a cathode comprising a cathode end plate structure made of a polymer material and provided with an air flow channel having air holes and a collector formed of a metal layer deposited on the cathode end plate structure; and (iii) a membrane electrode assembly (MEA) comprising a polymer electrolyte membrane whose surface is coated with a catalyst layer and a gas diffusion layer (GDL) provided on at least one side thereof, wherein the membrane electrode assembly is interposed and pressed between the anode and the cathode.
    Type: Application
    Filed: February 6, 2015
    Publication date: June 4, 2015
    Inventors: Ik Whang Chang, Tae Hyun Park, Yoon Ho Lee, Suk Won Cha
  • Publication number: 20150116565
    Abstract: An image sensor according to an example embodiment of includes a first pixel and a second pixel in a first row. The first pixel includes a first photoelectric conversion element at a first depth in a semiconductor substrate and the first photoelectric conversion element is configured to convert a first visible light spectrum into a first photo charge, and the second pixel includes a second photoelectric conversion element at a second depth from the first depth in the semiconductor substrate, the second photoelectric conversion element is at least partially overlapped by the first photoelectric conversion element in a vertical direction, and the second photoelectric conversion element is configured to convert a second visible light spectrum into a second photo charge.
    Type: Application
    Filed: September 25, 2014
    Publication date: April 30, 2015
    Inventors: Seoung Hyun KIM, Mun Hwan KIM, Chan Hyung KIM, Jung Bin YUN, Young Gu JIN, Seung Won CHA
  • Patent number: 8999099
    Abstract: A substrate attachment system, including a portable chamber for receiving a pair of substrates which are aligned; a conveyor transportation device which continuously moves the portable chamber and to which a vacuum generator that is connected to a vacuum port of the portable chamber to evacuate the inside of the portable chamber is provided; and a heating device for performing a heating process in which the aligned substrates are attached to each other in the portable chamber, wherein the conveyor transportation device is arranged to pass through the heating device. The substrate attachment system may contribute to high attachment accuracy, and also, since the size of a chamber is reduced, a spatial utilization rate may be high, and also, since an attachment process is continuously performed by using a conveyor transportation device, a process time may be reduced.
    Type: Grant
    Filed: November 26, 2010
    Date of Patent: April 7, 2015
    Assignee: Ltrin. Co., Ltd.
    Inventors: Yong-Won Cha, Sang Wook Yoo, Gun-Woo Park, Seung-Hee Jung
  • Publication number: 20150036433
    Abstract: A semiconductor memory device comprises a memory cell array including a plurality of memory blocks each including a plurality of pages, wherein each of the plurality of pages includes at least one flag cell indicating whether data is in a corresponding page, and a peripheral circuit configured to read data of flag cells of a selected memory block in response to an erase request and to omit an erase operation on the selected memory block based on the data of the flag cells.
    Type: Application
    Filed: October 17, 2014
    Publication date: February 5, 2015
    Inventors: Seong Hun PARK, Jae Won CHA
  • Patent number: 8902674
    Abstract: A semiconductor memory device includes a memory cell array configured to include memory cells, peripheral circuits configured to read out data stored in a selected memory cell in a read operation, and a controller configured to control the peripheral circuits so that the peripheral circuits sense a voltage level of the bit line when a first read voltage of the read voltages is supplied to the word line and the peripheral circuits sense voltage levels of the bit line when a second read voltage lower than the first read voltage by a specific level and a third read voltage higher than the first read voltage by the specific level are supplied to the word line in order to determine whether a threshold voltage of the selected memory cell falls within a set voltage distribution in the read operation.
    Type: Grant
    Filed: April 19, 2012
    Date of Patent: December 2, 2014
    Assignee: SK Hynix Inc.
    Inventors: In Gon Yang, Duck Ju Kim, Jae Won Cha, Sung Hoon Ahn, Tae Ho Jeon
  • Patent number: 8895199
    Abstract: Provided is a fuel cell system using waste hydrogen generated from a sea water electrolyzing apparatus, the fuel cell system including: a sea water electrolyzing apparatus carrying out electrolysis of sea water used as cooling water in a nuclear power generation system to produce a chlorine-containing material; a hydrogen conveying line linked to one side of the sea water electrolyzing apparatus to convey waste hydrogen generated during the electrolysis; and a fuel cell linked to the hydrogen conveying line to generate electricity by using the waste hydrogen supplied from the hydrogen conveying line as fuel. The fuel cell system generates electricity by using waste hydrogen, which, otherwise, is totally discarded after being generated secondarily from the sea water electrolyzing apparatus, as fuel for the fuel cell.
    Type: Grant
    Filed: October 5, 2011
    Date of Patent: November 25, 2014
    Assignee: XFC Inc.
    Inventors: Ju-Hyung Lee, Jong Won Choi, Suk-Won Cha, Ik Whang Chang
  • Patent number: 8892555
    Abstract: An apparatus and method summarize a user's daily life information. The apparatus includes an information collection unit, an analysis unit, a story generator, and a display unit. The information collection unit collects log information including user's daily life information, from at least one electronic device. The analysis unit analyzes the log information collected from the information collection unit and decides at least one topic representing the user's daily life information. The story generator generates at least one sentence representing the user's daily life information using the at least one topic decided in the analysis unit. The display unit displays the at least one sentence generated in the story generator.
    Type: Grant
    Filed: March 30, 2012
    Date of Patent: November 18, 2014
    Assignees: Samsung Electronics Co., Ltd., Changwon National University, Industry Academy Cooperation Corps
    Inventors: Hee-Seok Jeong, Young-Hee Park, Jeong-Won Cha
  • Patent number: 8885419
    Abstract: A semiconductor memory device comprises a memory cell array including a plurality of memory blocks each including a plurality of pages, wherein each of the plurality of pages includes at least one flag cell indicating whether data is in a corresponding page, and a peripheral circuit configured to read data of flag cells of a selected memory block in response to an erase request and to omit an erase operation on the selected memory block based on the data of the flag cells.
    Type: Grant
    Filed: September 13, 2012
    Date of Patent: November 11, 2014
    Assignee: SK Hynix Inc.
    Inventors: Seong Hun Park, Jae Won Cha
  • Publication number: 20140322834
    Abstract: An apparatus for bonding substrates and a method of bonding substrates are provided. In accordance with one exemplary embodiment of the present invention, a first plate to mount a first substrate is provided. A chamber body movably connected to the first plate is provided. A second plate that is placed opposite to the first plate and a second substrate is mounted on the second plate is provided. A chamber lead having the second plate mounted inside is provided which is movably connected to the chamber body to move rotationally or linearly to open or close the chamber space with the chamber body. A pair of first alignment cameras is placed outside of the chamber space to scan the first substrate or the second substrate. A stage control unit is provided to move the first plate or the second plate to align the first substrate and the second substrate.
    Type: Application
    Filed: April 28, 2014
    Publication date: October 30, 2014
    Applicant: LTrin Co., Ltd
    Inventors: Yong Won CHA, Chang Woo RYOO, Sang Jun OH, Gun Woo PARK, Jae In PARK
  • Publication number: 20140290565
    Abstract: The present invention relates to a method for producing graphene on a face-centered cubic metal catalyst having a plane oriented in one direction, and more particularly to a method of producing graphene on a metal catalyst having the (100) or (111) crystal structure and a method of producing graphene using a catalyst metal foil having a single orientation, obtained by electroplating a metal catalyst by a pulse wave current and annealing the metal catalyst. The invention also relates to a method of producing graphene using a metal catalyst, and more particularly to a method of producing graphene, comprising the steps of: alloying a metal catalyst with an alloying element; forming step structures on the metal catalyst substrate in an atmosphere of a gas having a molecular weight of carbon; and supplying hydrocarbon and hydrogen gases to the substrate. On unidirectionally oriented metal catalyst prepared according to the present invention, graphene can be grown uniformly and epitaxially.
    Type: Application
    Filed: October 18, 2012
    Publication date: October 2, 2014
    Inventors: Kang Hyung Kim, Kwan Sub Maeng, Chol Woo Park, Se Won Cha, Se Youn Hong, Byung Hee Hong, Myung Hee Jung, Kyung Eun Kim, Su Beom Park
  • Publication number: 20140289460
    Abstract: Systems, methods and fabrication processes relating to dynamic random access memory (DRAM) devices involving data signals grouped into 10 bits are disclosed. According to one illustrative implementation a DRAM device may comprise a memory core, circuitry that receives a data bus inversion (DBI) bit associated with a data signal as input directly, without transmission through DBI logic associated with an input buffer, circuitry that stores the DBI bit into the memory core, reads the DBI bit from the memory core, and provides the DBI bit as output. In further implementations, DRAM devices herein may store and process the DBI bit on an internal data bus as a regular data bit.
    Type: Application
    Filed: March 17, 2014
    Publication date: September 25, 2014
    Applicant: GSI TECHNOLOGY, INC.
    Inventors: Lee-Lean SHU, Paul M. Chiang, Soon-Kyu PARK, Gi-Won CHA
  • Publication number: 20140253905
    Abstract: A depth pixel of an image sensor includes a depth sensing element configured to generate first charges that are photo-electrically converted from a light reflected from an object, a first floating diffusion node configured to receive the first charges from the depth sensing element, a second floating diffusion node configured to output second charges corresponding to a component of a reflection light where a component of an ambient light is cancelled, and an ambient light cancellation circuit configured to detect the ambient light to control a barrier level of a charge transfer path between the first floating diffusion node and the second floating diffusion node in response to the ambient light.
    Type: Application
    Filed: November 29, 2013
    Publication date: September 11, 2014
    Applicant: Samsung Electronics Co., Ltd
    Inventors: Seoung-Hyun KIM, Yoon-Dong PARK, Yong-Jei LEE, Joo-Yeong GONG, Hee-Woo PARK, Seung-Won CHA