Patents by Inventor An Ho CHO

An Ho CHO 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).

  • LIQUID CRYSTAL DISPLAY MODULE AND LIQUID CRYSTAL DISPLAY DEVICE HAVING THE SAME
    Publication number: 20120069262
    Abstract: A liquid crystal display device has a liquid crystal display module, including: a bottom chassis having a bottom side on which an open hole is formed, a printed circuit board adjacent to the open hole and supported at an inner face of the bottom side on which a plurality of light emitting diodes are is mounted, and a coupling part which extends from the printed circuit board, passes through the open hole and contacts an outer face of the bottom side of the bottom chassis, so as to maintain coupling between the bottom chassis and the printed circuit board.
    Type: Application
    Filed: September 15, 2011
    Publication date: March 22, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jeong Il KANG, Kun Ho CHO
  • BACKLIGHT UNIT AND LIQUID CRYSTAL DISPLAY HAVING THE SAME
    Publication number: 20120069263
    Abstract: A liquid crystal display is provided. The liquid crystal display includes a liquid crystal panel, a light guide plate disposed below the liquid crystal panel, and a light source unit which emits light to at least one side surface of the light guide plate. The light source unit includes light source elements which are disposed adjacent to the at least one side surface of the light guide plate, and which emit light that is incident on the at least one side surface of the light guide plate. A printed circuit board is disposed adjacent to a lower surface of the light guide plate and supports the light source elements.
    Type: Application
    Filed: September 2, 2011
    Publication date: March 22, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Gil Tae HUR, Kun Ho CHO, Yong Hun KWON, Kye Hoon LEE, Suk Ju CHOI
  • Electric oven with multiple broil heaters and method for preheating the electric oven
    Patent number: 8138453
    Abstract: A electric oven is provided that includes a body, a cooking chamber located within the body for receiving food, the cooking chamber having an upper surface, a lower surface, and a rear surface joining the upper surface to the lower surface, at least one of a convection heater located at the rear surface of the cooking chamber and a bake heater located at the lower surface of the cooking chamber, and at least two broil heaters located at the upper surface of the cooking chamber, each of the at least two broil heaters being individually operable. Methods for preheating the electric oven are also provided.
    Type: Grant
    Filed: August 22, 2008
    Date of Patent: March 20, 2012
    Assignee: LG Electronics Inc.
    Inventors: Jae Kyung Yang, Hyeun Sik Nam, Dong Seong Kwag, Seong Ho Cho, Wan Soo Kim
  • RFID system preventing recognition error and communication method thereof
    Patent number: 8134466
    Abstract: A radio frequency identification (RFID) tag is provided that prevents a recognition error of the RFID tag due to the occurrence of a shadow region. The RFID tag includes a first tag performing communication with an RFID reader and a second tag connected to the first tag and suitable for use with a different communication type from the first tag. Thus, when information stored in the first tag can not be read, the second tag is activated and externally transmits information and when information stored in the first tag can be read, the second tag is deactivated and does not externally transmit information. A communication method of an RFID system including an RFID reader communicating with an RFID tag is also provided.
    Type: Grant
    Filed: December 4, 2008
    Date of Patent: March 13, 2012
    Assignees: Samsung Techwin Co., Ltd., Industry-University Cooperation Foundation Hanyang Universtiy
    Inventors: Ki-yong Jeon, Sung-ho Cho
  • Direct cooling refrigerator and control method thereof
    Publication number: 20120047922
    Abstract: A direct cooling refrigerator having a circulation duct. The direct cooling refrigerator includes a cabinet, an inner case arranged in the cabinet and having an inlet and an outlet, a circulation duct coupled to the inner case at the outside of the inner case and having a suction port communicating with the outlet and a discharge port communicating with the inlet, and a fan to move air from the suction port to the discharge port within the circulation duct. The inlet is located at an upper wall of the inner case so as to be located closer to a front surface of the inner case than a rear wall of the inner case, and the outlet is located at the rear wall of the inner case so as to be located close to a lower wall of the inner case.
    Type: Application
    Filed: August 18, 2011
    Publication date: March 1, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sang Jin Lee, Hak Gyun Bae, Sung Ho Cho, Eung Ryeol Seo, Hyun Joo Kim, Joo Hee Song
  • RENDERING APPARATUS AND METHOD FOR GENERATING MULTI-VIEWS
    Publication number: 20120050283
    Abstract: A rendering apparatus and method for generating multi-views are provided. A rendering unit may generate a plurality of predicted views by rendering one or more reference views, and a hole aggregating unit may generate a reference hole representing an aggregation of holes existing in each of the predicted views. A hole inpainting unit may inpaint the reference hole, and a multi-view generating unit may remove the holes existing in each of the predicted views using the inpainted reference hole.
    Type: Application
    Filed: August 26, 2011
    Publication date: March 1, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kyu Young HWANG, Ho Young Lee, Yang Ho Cho, Young Ju Jeong
  • WINCH AND AUTONOMOUS MOBILE APPARATUS INCLUDING THE SAME
    Publication number: 20120048152
    Abstract: The present invention discloses a winch and an autonomous mobile apparatus including the winch. The winch can include: a driving motor; a drum driving axle configured to be rotated the driving motor; a wire drum configured to be rotated by the drum driving axle; a roller driving axle arranged to be parallel to the drum driving axle and configured to be rotated in different direction from that of the drum driving axle by the driving motor; a roller connected with the roller driving axle and configured to support a wire wound on or unwound from the wire drum; and a one way clutch installed in the roller driving axle in such a way that a driving force transferred to the roller by the roller driving axle is cut off when the wire drum rotates in a direction of winding the wire.
    Type: Application
    Filed: April 1, 2010
    Publication date: March 1, 2012
    Applicant: SAMSUNG HEAVY IND. CO. LTD
    Inventors: Sang-Whee Kim, Seong Ho Cho, Hyun Goo Kim, Young Jun Park, Ki Soo Cho
  • Device to sense frequency band to share operating frequency bands in heterogeneous communication systems and method thereof
    Patent number: 8121630
    Abstract: A cognitive radio communication device and method are provided. The cognitive radio communication device includes a reception unit to receive reference signals from a first communication device, a frequency division unit to divide operating frequency bands of the first communication device into a plurality of sub frequency bands, a first sensing unit to sense each of the plurality of sub frequency bands using the reference signals to estimate whether the first communication device uses each of the plurality of sub frequency bands, and to determine an unused frequency band group including at least one sub frequency band not used by the first communication device based on the estimated result, and a transmission unit to transmit data to a second communication device using the sub frequency band included in the unused frequency band group.
    Type: Grant
    Filed: April 13, 2009
    Date of Patent: February 21, 2012
    Assignees: Samsung Electronics Co., Ltd., Korea Advanced Institute of Science and Technology
    Inventors: Tae Soo Kwon, Woong Sup Lee, Kyung Hun Jang, Hyo Sun Hwang, Dong Ho Cho, Ho Won Lee, O Hyun Jo
  • LED driving circuit
    Patent number: 8120278
    Abstract: The present invention provides an LED driving circuit including: an inverter unit for switching an input power source; a plurality of transformers including a plurality of primary windings connected to the inverter unit and connected to each other in series and a plurality of secondary windings each of which is coupled with each of the primary windings; a plurality of rectification units each of which is connected to each of the secondary windings; and a plurality of LEDs each of which is connected to each of the rectification units.
    Type: Grant
    Filed: May 28, 2009
    Date of Patent: February 21, 2012
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Heung Gyoon Choi, Sung Soo Hong, Sang Kyoo Han, Chung Wook Roh, Sang Ho Cho, Sang Hyun Lee, Sung Ho Kim, Tae Hyung Kang, Jae Sun Won
  • REFRIGERATOR AND CONTROL METHOD THEREOF
    Publication number: 20120041577
    Abstract: A refrigerator to control food storage conditions and a control method thereof include controlling temperature in the refrigerator. The control method includes determining whether time data to be used to confirm a season is stored in a storage unit, requesting a user to input time data upon determining that the time data is not stored in the storage unit, and determining whether the stored time data is to be changed upon determining that the time data is stored in the storage unit. Temperature in the refrigerator is controlled based on properties of food for each season to improve storage efficiency of food.
    Type: Application
    Filed: August 10, 2011
    Publication date: February 16, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sung Ho CHO, Chang Hern LEE, Jae Won LEE
  • System and method for data transmission/reception based on an operational state of a mobile station in a communication system
    Patent number: 8116246
    Abstract: Disclosed is a system and method for transmitting data based on an operational state of a mobile station in a communication system. The method includes, when detecting a low battery state of the mobile station, storing one or more data packets to be transmitted to the mobile station, extracting at least one data packet, which has a transmission delay time larger than a difference between a maximum delay time and preset margin, from the one or more stored data packets, and transmitting at least a part of the extracted at least one data packet to the mobile station by using a resource allocated to the mobile station.
    Type: Grant
    Filed: March 25, 2008
    Date of Patent: February 14, 2012
    Assignees: Samsung Electronics Co., Ltd., Korea Advanced Institute of Science and Technology
    Inventors: Chan-Ho Min, Jong-Hyung Kwun, Ju-Yeop Kim, Dong-Ho Cho, Chul-Kee Hong, Hyu-Dae Kim, Hun-Joo Lee, Sik Choi, Ho-Won Lee, Woong-Sup Lee, Se-Young Yun
  • APPARATUS AND METHOD FOR GENERATING EXTRAPOLATED VIEW BASED ON IMAGE RESIZING
    Publication number: 20120033872
    Abstract: A view extrapolation apparatus and a view extrapolation method to generate images at a plurality of virtual points using a relatively small number of input images are disclosed. The view extrapolation apparatus and the view extrapolation method output a view at a reference point, the view at the reference point being formed of frames according to time, generating the frames of the view at the reference point to generate a resized frame, and generating an extrapolated view at a virtual point using the resized frame.
    Type: Application
    Filed: July 7, 2011
    Publication date: February 9, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yang Ho CHO, Du-Sik Park, Ho Young Lee, Kyu Young Hwang, Young Ju Jeong
  • APPARATUS AND METHOD FOR GENERATING EXTRAPOLATED VIEW
    Publication number: 20120033038
    Abstract: A view extrapolation apparatus and a view extrapolation method to generate images at a plurality of virtual points uses a relatively small number of input images. The view extrapolation apparatus and the view extrapolation method output a view at a reference point, the view at the reference point being formed of frames generated chronologically, integrate a plurality of successive frames of the view at the reference point to generate an integrated frame, and generate an extrapolated view at a virtual point using the integrated frame.
    Type: Application
    Filed: June 7, 2011
    Publication date: February 9, 2012
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Yang Ho CHO, Ho Young Lee, Chang Yeong Kim, Du Sik Park
  • Apparatus and method of enhancing color of image
    Patent number: 8111915
    Abstract: An apparatus and method of enhancing color of image is provided. The apparatus for enhancing color of image including: a saturation enhancement unit to enhance a saturation of an input image using a saturation variation according to a brightness feature of the input image; a gray scale area protection unit to determine a final saturation variation depending on a saturation value of the input image and the saturation variation, and to prevent a saturation enhancement of a gray scale area; a color control unit to control a color of the input image using a color variation according to the brightness feature of the input image; and a brightness value correction unit to correct a difference between a resultant brightness value and an input brightness value of the input image, the resultant brightness value being generated by applying the final saturation variation and the color variation to the input image.
    Type: Grant
    Filed: October 24, 2007
    Date of Patent: February 7, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yang Ho Cho, Ho Young Lee, Du-Sik Park
  • LDMOS transistor and method for manufacturing the same
    Patent number: 8105939
    Abstract: A LDMOS transistor and a method for manufacturing the same are disclosed. A lateral double diffused metal oxide semiconductor (LDMOS) transistor includes a first dielectric layer formed on a top surface of a substrate; a plurality of second dielectric layers on a top surface of the first dielectric layer; a plurality of contact plugs spaced apart by a predetermined distance in an active region of the substrate, passing through the first and second dielectric layers; and a bridge metal line formed in the second dielectric layers, inter-connecting the contact plugs in a horizontal direction. The bridge metal line formed to inter-connect the contact plugs allows for more current to flow in the presently disclosed LDMOS transistor than in a conventional LDMOS transistor of identical size.
    Type: Grant
    Filed: November 9, 2009
    Date of Patent: January 31, 2012
    Assignee: Dongbu HiTek Co., Ltd.
    Inventor: Cheol Ho Cho
  • Refrigerator door opening device and control method thereof
    Patent number: 8099970
    Abstract: A refrigerator including a door opening device to easily open a door and a control method thereof are disclosed. The device opens doors using rotation of a driving motor, returns to an initial state without rotating the driving motor in reverse after opening doors, and opens doors using only forward and reverse rotation of driving motor when doors are sequentially opened. Moreover, position of rotation cam is detected at initial state when power is supplied or during operation to determine whether the device is malfunctioning. In the early time when position of the rotation cam is detected, the driving motor is rotated by force so that malfunction of driving motor due to chattering is prevented. Frequency of opening doors by a door opening signal is determined and the device is driven in a mode so that damage is prevented due to excessive operation.
    Type: Grant
    Filed: November 15, 2007
    Date of Patent: January 24, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sung Ho Cho, Jae Koog An, Chang Hem Lee
  • FUEL CELL SYSTEM AND DRIVING METHOD OF THE SAME
    Publication number: 20120003553
    Abstract: A method of driving a fuel cell system is disclosed. The method of driving the fuel cell system may include supplying water to a reformer by pressing a pump pipe to pressing members to move the pressing members in a first direction, stopping power generation including stopping a supply of fuel and oxidant to the reformer, and discharging water in the reformer by moving the pressing members in a second direction opposite to the first direction while pressing the pump pipe with the pressing members. A fuel cell system is also disclosed. The fuel cell system includes a reformer, a fuel cell stack and a water transferring pump. The water transferring pump includes pressing members and a pump pipe. The pump pipe is in fluid communication with a water transferring pipe.
    Type: Application
    Filed: November 3, 2010
    Publication date: January 5, 2012
    Applicant: Samsung SDI Co., Ltd.
    Inventors: Woong-Ho Cho, Ming-Zi Hong, Dong-Hyun Kim, Dong-Rak Kim, Hyun Kim
  • ALKALI SOLUBLE RESIN POLYMER AND NEGATIVE-TYPE PHOTOSENSITIVE RESIN COMPOSITION INCLUDING THE SAME
    Publication number: 20120004341
    Abstract: Provided are an alkali soluble binder resin that includes a monomer including an unsaturated double bond, an unsaturated double bond character monomer including a carboxylic acid and an unsaturated double bond character monomer including an allyl group as a repeating unit, in which a molecular weight distribution (Mw/Mn) is in a range of about 2.0 to about 3.5, and a negative-type photosensitive resin composition including the alkali soluble binder resin. Re-solubility, fine-patterned substrate adhesion and dispersion stability may be improved by including the alkali soluble binder resin according to the present invention.
    Type: Application
    Filed: July 5, 2011
    Publication date: January 5, 2012
    Applicant: LG CHEM, LTD.
    Inventors: Han Soo KIM, Hee Kwan PARK, Ki Youl LEE, Sang Kyu KWAK, Yoon Hee HEO, Chang Soon LEE, Chang Ho CHO, Sun Hwa KIM, Won Jin CHUNG
  • FUEL CELL SYSTEM AND DRIVING METHOD FOR THE SAME
    Publication number: 20110318664
    Abstract: A fuel cell system including a fuel cell stack having a plurality of unit cells is provided. A method of driving the fuel cell stack is also provided. The method may include supplying a fuel to a fuel cell stack, supplying an oxidizer to the fuel cell stack, controlling supply of the fuel and the oxidizer to operate the fuel cell stack, calculating a total operation time of the fuel cell, and/or varying a stack activation period in which the oxidizer is blocked to the fuel cell stack according to the total operation time and a stack activation cycle of which the stack activation period is generated.
    Type: Application
    Filed: January 3, 2011
    Publication date: December 29, 2011
    Applicant: SAMSUNG SDI CO., LTD.
    Inventors: Hyun Kim, Dong-Rak Kim, Dong-Hyun Kim, Ming-Zi Hong, Woong-Ho Cho
  • PHOTOACTIVE COMPOUND AND PHOTOSENSITIVE RESIN COMPOSITION CONTAINING THE SAME
    Publication number: 20110318692
    Abstract: The present invention relates to a photoactive compound of a novel structure represented by Chemical Formula 1 below In Chemical Formula 1, R1 and R2, R3, and A are as defined in the specification, and a photosensitive resin composition comprising the same. The photoactive compound of the present invention comprises a nitro group and a phosphonate structure and thus exhibits excellent sensitivity through efficient absorption for UV light, excellent compatibility between the photoactive compound and the alkali-soluble binder resin, and an improved solubility of the photosensitive resin composition. Furthermore, the photosensitive resin composition of the present invention has excellent residual film thickness and mechanical strength characteristics and heat-resistant, chemical-resistant, and development-resistant properties.
    Type: Application
    Filed: February 12, 2010
    Publication date: December 29, 2011
    Applicant: LG CHEM, LTD.
    Inventors: Chang Ho Cho, Sung Hyun Kim, Raisa Kharbash, Keon Woo Lee, Dong Kung Oh, Won Jin Cung, Sang Kyu Kwak, Chang Soon Lee