Patents by Inventor In Chul Hyun

In Chul Hyun 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: 20150047024
    Abstract: The disclosure is related to a surveillance camera renting service. A service server may provide the surveillance camera renting service through receiving an image having an authentication pattern, captured by and transmitted from a surveillance camera and transmitting a video stream, produced by and transmitted from the surveillance camera, to user equipment authenticated based on the authentication pattern included in the received image.
    Type: Application
    Filed: August 7, 2014
    Publication date: February 12, 2015
    Inventor: Chul-Hyun PARK
  • Patent number: 8934937
    Abstract: A user device transmits data at a first transmit power level. The user device detects a presence of a human body part within a predetermined distance from an antenna of the user device using one or more sensors disposed at a back side of the user device. In response to the detection of the presence of the human body part, the user device transmits information at a second transmit power level that is less than the first transmit power level.
    Type: Grant
    Filed: March 29, 2010
    Date of Patent: January 13, 2015
    Assignee: Amazon Technologies, Inc.
    Inventors: Gregg Zehr, Subram Narasimhan, Varadarajan Gopalakrishnan, David C. Buuck, John Depew, In Chul Hyun
  • Patent number: 8933980
    Abstract: A light scanning unit and an electrophotographic image forming apparatus are provided. The light scanning unit includes a light source unit for emitting a light beam, a light deflector for scanning and deflecting the light beam, an imaging optical system having an imaging lens for imaging the scanned and deflected light beam, and first and second reflection members arranged on an optical path, a housing, and first and second assembly members for pressing and fixing the first and second reflection members on the housing. The assembly members press and fix the reflection members on the housing by pressing the reflection members in a direction in which curvature of a scanning line due to the inclination of the first reflection member and curvature of a scanning line due to the inclination of the second reflection member are offset with each other.
    Type: Grant
    Filed: August 9, 2013
    Date of Patent: January 13, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Chul-hyun Park
  • Patent number: 8926155
    Abstract: In a backlight assembly and a display apparatus having the backlight assembly, the backlight assembly includes a light source, a light guide, a first reflector, and an optical unit. The light guide is disposed adjacent to the light source, extends substantially parallel with a longitudinal direction of the light source, and refracts light emitted from the light source. The first reflector is disposed under the light guide and reflects the refracted light toward the optical unit. The optical unit is disposed over the first reflector such that an empty space is formed between the optical unit and the first reflector.
    Type: Grant
    Filed: August 23, 2012
    Date of Patent: January 6, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Chul-Hyun Choi, Kwang-Hoon Lee, Se-Ki Park
  • Publication number: 20150000065
    Abstract: A wiper blade assembly including a contact member, an elastic member which supports the contact member, a cover member which covers the elastic member, a coupling cover which covers the elastic member and has a housing portion, and an adapter which can be inserted into or removed from the housing portion of the coupling cover. The coupling cover has a first coupling portion located on a side of the housing portion, and the adapter has a second coupling portion located on a side thereof. The second coupling portion includes a pressure structure and a coupling structure separated from the pressure structure by a predetermined distance. The first coupling portion is coupled to the coupling structure. A structure for coupling the adapter to the coupling cover and a structure for separating the adapter from the coupling cover are provided separately. The adapter can be easily separated from the coupling cover.
    Type: Application
    Filed: June 27, 2014
    Publication date: January 1, 2015
    Inventors: Sang Cheol LEE, Seung Chul HYUN
  • Publication number: 20140329552
    Abstract: A user device receives a command to transmit information at a transmit power level specified by a wireless carrier. The user device determines whether transmitting the information at the specified transmit power level using a first duty cycle will cause the user device to violate a condition. Responsive to determining that transmitting the information at the specified transmit power level using the first duty cycle will cause the user device to violate the condition, the user device determines a new duty cycle that is lower than the first duty cycle, and transmits the information using the new duty cycle.
    Type: Application
    Filed: July 15, 2014
    Publication date: November 6, 2014
    Inventors: Varadarajan Gopalakrishnan, James Samuel Bowen, In Chul Hyun, David Woo
  • Patent number: 8878602
    Abstract: Approaches are described for managing effects such as interference, crosstalk, and other types of noise in an electronic environment using a physical and/or electronic switch to improve antenna performance. For example, in the situation where the connector is connected to the device and no data and/or power is being transferred through the connector, the switch is caused to be open. In this situation, because the connector will be an electrically floating metal instead of a grounded metal due to the open switch, at least a portion of the radiated and/or received antenna signals will not couple to the connector. In the situation where the connector is connected to the device and is being used to transfer data and/or power, the switch is caused to be closed, which will result in the connector being grounded. In such a situation, at least a portion of the noise generated by the connector due to transferring data and/or power will be grounded instead of being coupled to the antenna.
    Type: Grant
    Filed: March 12, 2013
    Date of Patent: November 4, 2014
    Assignee: Amazon Technologies, Inc.
    Inventors: Morris Yuanhsiang Hsu, Chirag Saurabh Bhavsar, In Chul Hyun
  • Patent number: 8830729
    Abstract: A resistive memory apparatus includes a sensing voltage generation unit and a memory cell. The sensing voltage generation unit configured to drive a sensing node to a voltage with a predetermined level in response to a reference voltage and a voltage of the sensing node. The memory cell is connected with the sensing node and configured to change a magnitude of current flowing through the sensing node according to a resistance value thereof.
    Type: Grant
    Filed: September 1, 2012
    Date of Patent: September 9, 2014
    Assignee: SK Hynix Inc.
    Inventors: Chul Hyun Park, Taek Sang Song
  • Publication number: 20140225974
    Abstract: A light scanning unit and an electrophotographic image forming apparatus are provided. The light scanning unit includes a light source unit for emitting a light beam, a light deflector for scanning and deflecting the light beam, an imaging optical system having an imaging lens for imaging the scanned and deflected light beam, and first and second reflection members arranged on an optical path, a housing, and first and second assembly members for pressing and fixing the first and second reflection members on the housing. The assembly members press and fix the reflection members on the housing by pressing the reflection members in a direction in which curvature of a scanning line due to the inclination of the first reflection member and curvature of a scanning line due to the inclination of the second reflection member are offset with each other.
    Type: Application
    Filed: August 9, 2013
    Publication date: August 14, 2014
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Chul-hyun PARK
  • Publication number: 20140218965
    Abstract: A lighting module may be provided that includes: a first light guide plate which includes a top surface and a bottom surface, each of which emits light, and a light incident side; a second light guide plate which is disposed below the first light guide plate and includes a top surface and a bottom surface, each of which emits light, and a light incident side; a reflector which is disposed between the first light guide plate and the second light guide plate; and a light source which includes first light emitting devices disposed on a side of the first light guide plate, and second light emitting devices disposed on a side of the second light guide plate.
    Type: Application
    Filed: August 29, 2012
    Publication date: August 7, 2014
    Inventors: Young Sik Kim, Jun Chul Hyun, Sang Jun Hong
  • Patent number: 8792930
    Abstract: A user device receives a command to transmit information at a transmit power level specified by a wireless carrier. The user device makes a determination as to whether transmitting the information at the specified transmit power level will cause the user device to violate a condition. When it is determined that transmitting the information at the specified transmit power level will cause the user device to violate the condition, the user device dynamically computes a new transmit power level that is lower than the specified transmit power level. The user device then transmits the information at the new transmit power level.
    Type: Grant
    Filed: March 29, 2010
    Date of Patent: July 29, 2014
    Assignee: Amazon Technologies, Inc.
    Inventors: Varadarajan Gopalakrishnan, James Samuel Bowen, In Chul Hyun, David Woo
  • Publication number: 20140177353
    Abstract: A nonvolatile memory apparatus includes a read/write control unit and a voltage generation unit and the memory cell. The read/write control circuit is configured to supply a bias voltage in response to a read control signal, a write control signal and data. The voltage generation unit is configured to compare a level of the bias voltage with a voltage level of a sensing node and drive the sensing node at voltage having a constant level based on a result of the comparison. The memory cell coupled with the sensing node and configured to receive the voltage having the constant level.
    Type: Application
    Filed: March 18, 2013
    Publication date: June 26, 2014
    Applicant: SK HYNIX INC.
    Inventor: Chul Hyun PARK
  • Publication number: 20140163226
    Abstract: The present invention relates to a compound represented by formula (I) for inhibiting the activity of diacylglycerol O-acyltransferase type 1 (DGAT1), and pharmaceutically acceptable salts thereof, and a pharmaceutical composition comprising same as an active ingredient. The compound of the present invention may be used effectively in the treatment or prevention of a disease or condition mediated by the activity of DGAT1 such as obesity, type II diabetes, dyslipidemia, metabolic syndrome, and the like, without any adverse effects: wherein A, B, X, and R5 to R7 are the same as defined in the specification.
    Type: Application
    Filed: June 29, 2012
    Publication date: June 12, 2014
    Applicant: HANMI PHARMACEUTICAL CO., LTD.
    Inventors: Chul Hyun Park, Won Jeoung Kim, Young Hee Jung, Nam Du Kim, Young Kil Chang, Maeng Sup Kim
  • Publication number: 20140073292
    Abstract: A system for transferring a profile that is stored at an authentication module includes: a first terminal that includes a first authentication module and that operates based on a user profile that is stored at the first authentication module; a second terminal that includes a second authentication module and that requests the user profile by transmitting a first message including user identification information; and a management server that receives the first terminal and that acquires a profile that is stored at the first terminal based on user identification information and that transmits the acquired profile to the second terminal, wherein the first terminal exports the stored profile, and the second terminal installs a profile, having received from the management server at the second authentication module.
    Type: Application
    Filed: June 14, 2013
    Publication date: March 13, 2014
    Applicant: KT CORPORATION
    Inventors: Kwanlae KIM, Chul-Hyun PARK, Jin-Hyoung LEE, Hyung-Jin LEE
  • Patent number: 8659930
    Abstract: A non-volatile memory device includes a memory cell including a resistance variable device and a switching unit for controlling a current flowing through the resistance variable device; a read reference voltage generator configured to generate a reference voltage according to a skew occurring in the switching unit; and a sense amplifier configured to sense a voltage corresponding to the current that flows through the resistance variable device based on the reference voltage.
    Type: Grant
    Filed: December 29, 2011
    Date of Patent: February 25, 2014
    Assignee: Hynix Semiconductor Inc.
    Inventors: Hyuck-Sang Yim, Kwang-Seok Kim, Taek-Sang Song, Chul-Hyun Park
  • Publication number: 20140045460
    Abstract: There are provided a method of providing a SIM profile to an eUICC device online and a device using the same. The method of providing the SIM profile includes purchasing the SIM profile provided in an app store using a user device capable of accessing the app store, downloading the purchased SIM profile in the eUICC device using the eUICC device capable of accessing the app store, and installing the SIM profile, that is downloaded in the eUICC device, in the eUICC device therein. Therefore, it is possible to purchase the SIM profile using the online app store that is operated in a variety of forms and easily install the purchased SIM profile in the eUICC device.
    Type: Application
    Filed: May 23, 2013
    Publication date: February 13, 2014
    Applicant: KT CORPORATION
    Inventors: Chul Hyun PARK, Kwan Lae KIM, Joo Young KIM, Jin Hyoung LEE, Hyung Jin LEE
  • Publication number: 20140031012
    Abstract: There are provided a method of providing a SIM profile, and an eUICC device. The method of providing the SIM profile includes downloading a SIM profile application selected by a user who uses the eUICC device from an app store, executing and installing the SIM profile application in the eUICC device, accessing of the eUICC device having the SIM profile application installed therein to an operator server, and authenticating the eUICC device based on SIM profile information corresponding to the SIM profile application. The eUICC device includes a network connection unit configured to access the app store via a local network, a SIM profile storage configured to store the SIM profile application, and an authentication requesting unit configured to access the operator server based on the SIM profile information.
    Type: Application
    Filed: May 23, 2013
    Publication date: January 30, 2014
    Inventors: Chul Hyun PARK, Kwan Lae KIM, Joo Young KIM, Jin Hyoung LEE, Hyung Jin LEE
  • Publication number: 20140010023
    Abstract: A multi-level memory apparatus includes two or more current paths configured to pass currents having different levels, a memory cell selectively coupled to the two or more current paths, and a cell current copy unit configured to copy a cell current flowing through the memory cell.
    Type: Application
    Filed: July 3, 2013
    Publication date: January 9, 2014
    Inventors: Chul Hyun PARK, Seung Tak RYU, Ji Wook KWON, Dong Hwan JIN
  • Publication number: 20140006779
    Abstract: A system for backing up a profile includes: a management server that stores and manages received information and a terminal that generates a plurality of division profiles by dividing a profile that is stored at an embedded authentication module and that transmits backup request information including the plurality of division profiles to the management server, wherein the management server stores the plurality of division profiles based on the backup request information.
    Type: Application
    Filed: June 14, 2013
    Publication date: January 2, 2014
    Applicant: KT CORPORATION
    Inventors: Kwanlae KIM, Chul-Hyun PARK, Jin-Hyoung LEE, Hyung-Jin LEE
  • Publication number: 20140001506
    Abstract: Provided is a lighting device, comprising: a light source module comprising: at least one light source disposed on a printed circuit board; and a resin layer disposed on the printed circuit board so that the light source is embedded; a light reflection member formed on at least any one of one side surface and another side surface of the resin layer; and a diffusion plate having an upper surface which is in contact with an upper part of the light source module, and a side wall which is integrally formed with the upper surface and formed to extend in a lower side direction and which is adhered to the light reflection member, whereby flexibility of the product itself can be secured, and durability and reliability of the product can be also improved.
    Type: Application
    Filed: June 27, 2013
    Publication date: January 2, 2014
    Inventors: Kwang Ho Park, Moo Ryong Park, Ki Beom Kim, Jin Hee Kim, Chul Hong Kim, Hyung Min Park, Hyun Hee Chae, Jun Chul Hyun