Patents by Inventor In-Hwan Yi

In-Hwan Yi 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: 20190317263
    Abstract: A liquid crystal display device includes a light guide plate, an optical film, a quantum dot film, a display panel, a light source unit, and an optical filter. The light guide plate includes a light incident surface and a light emission surface. The optical film is disposed in the light emission surface on the light guide plate, and has a first refractive index. The quantum dot film is disposed on the optical film. The display panel is disposed on the quantum dot film, and displays an image. The light source unit is spaced apart from the light incident surface of the light guide plate, and emits a light. The optical filter is disposed in the light incident surface such that the optical filter is spaced apart from the light source unit, and reflects a first light, which has an angle of incidence greater than a predetermined angle of incidence, among the light.
    Type: Application
    Filed: April 9, 2019
    Publication date: October 17, 2019
    Inventors: Youn Ho Han, Seung In Baek, Jung Hwan Yi, Mi Ra Gwon, Young Eun Park, Su Jin Choi
  • Patent number: 10381217
    Abstract: In a method of deposition a thin film, a substrate having a pattern may be provided. A surface of the substrate may be treated using a deposition-suppressing gas to form a deposition-suppressing layer on the pattern. A process gas may be applied to the pattern to deposit the thin film. The deposition-suppressing gas may include fluorine.
    Type: Grant
    Filed: November 17, 2017
    Date of Patent: August 13, 2019
    Assignee: WONIK IPS CO., LTD.
    Inventors: Byung Chul Cho, Sang Jin Lee, In Hwan Yi, Kwang Seon Jin
  • Patent number: 10272467
    Abstract: According to an aerosol coating method, a heat treatment process of preliminary ceramic particles having a first mean particle size (D50) is performed to form ceramic particles having a second mean particle size (D50) in micro unit larger than the first mean particle size. Thereafter, the ceramic particles are mixed with a carrier gas to form an aerosol. The aerosol is sprayed toward the base to form a ceramic coating film on the base.
    Type: Grant
    Filed: August 28, 2013
    Date of Patent: April 30, 2019
    Assignee: Komico Co., Ltd.
    Inventors: Sung Hwan Yi, Jae Hyun Jung, Kyeong Ik Jang, Kyoung Hwan Ye
  • Publication number: 20190057883
    Abstract: The present invention provides a wafer cleaning apparatus including: a cleaning tank; and a cleaning unit installed to be capable of moving upward or downward into the cleaning tank, and configured to inject a cleaning solution onto an inner wall of the cleaning tank.
    Type: Application
    Filed: May 8, 2018
    Publication date: February 21, 2019
    Inventor: Jae Hwan YI
  • Publication number: 20180331410
    Abstract: An expanded waveguide for providing uniform electromagnetic field is disclosed. The expanded waveguide comprises an expanded area expanded in the direction of the E-plane, an input transition area and an output transition area connected to both sides of the expanded area and configured to pass an electromagnetic wave, and entrance parts formed respectively to an end part of the input transition area and an end part of the output transition area, the electromagnetic wave being inputted and outputted through the entrance parts. Here, a plurality of multilateral pillars are arranged in constant space in the transition areas, and a channel is formed along between the multilateral pillars.
    Type: Application
    Filed: September 6, 2017
    Publication date: November 15, 2018
    Inventors: Moon Il KIM, Chang Hwan YI
  • Patent number: 10091546
    Abstract: In one aspect, a video processing device includes a processor and a transmitter, for example implemented as separate integrated circuits on a printed circuit board. Pins on the processor are coupled to pins on the transmitter via a data channel, for example conductive leads on the printed circuit board. Video data is transmitted from the processor to the transmitter via this data channel, which is high speed enough to accommodate video data. The transmitter also includes an encryption engine used to encrypt the video data. Encryption control data, which determines the encryption to be applied, is transmitted from the processor to the transmitter over the same data channel as the video data. This is more secure than transmitting the encryption control data over a slower separate data channel, because the high speed video channel is harder to tamper with.
    Type: Grant
    Filed: March 17, 2017
    Date of Patent: October 2, 2018
    Assignee: Lattice Semiconductor Corporation
    Inventors: Hoon Choi, Wooseung Yang, Ju Hwan Yi
  • Patent number: 10027971
    Abstract: A transmitting device for communicating via a multimedia communication link includes a compression circuitry that receives blanking period data corresponding to blanking states of video blanking periods. The compression circuitry compresses the blanking period data into compressed blanking period data. The transmitting device also includes an interface that transmits signals corresponding to the compressed blanking period data via one or more multimedia channels of the multimedia communication link.
    Type: Grant
    Filed: October 11, 2017
    Date of Patent: July 17, 2018
    Assignee: Lattice Semiconductor Corporation
    Inventors: Hoon Choi, Ju Hwan Yi
  • Publication number: 20180166270
    Abstract: In a method of deposition a thin film, a substrate having a pattern may be provided. A surface of the substrate may be treated using a deposition-suppressing gas to form a deposition-suppressing layer on the pattern. A process gas may be applied to the pattern to deposit the thin film. The deposition-suppressing gas may include fluorine.
    Type: Application
    Filed: November 17, 2017
    Publication date: June 14, 2018
    Applicant: WONIK IPS CO., LTD.
    Inventors: Byung Chul CHO, Sang Jin LEE, In Hwan YI, Kwang Seon JIN
  • Publication number: 20180035122
    Abstract: A transmitting device for communicating via a multimedia communication link includes a compression circuitry that receives blanking period data corresponding to blanking states of video blanking periods. The compression circuitry compresses the blanking period data into compressed blanking period data. The transmitting device also includes an interface that transmits signals corresponding to the compressed blanking period data via one or more multimedia channels of the multimedia communication link.
    Type: Application
    Filed: October 11, 2017
    Publication date: February 1, 2018
    Inventors: Hoon Choi, Ju Hwan Yi
  • Patent number: 9864206
    Abstract: An optical modulation device includes a first electrode layer in which a plurality of electrodes are arranged and a second electrode layer, where the optical modulation device configures a Fresnel zone plate wherein groups of adjacent electrodes of the plurality of electrodes define zones of the Fresnel zone plate. A method of driving the optical modulation device includes applying a common voltage to the second electrode layer, applying starting voltages to the first electrode layer in a first step, applying lens voltages to the first electrode layer in a second step, where polarities of the lens voltages with respect to the common voltage are inverted for every zone, and an absolute difference between starting voltages applied to electrodes adjacent to a zone boundary in the first step is less than an absolute difference of the lens voltages applied to electrodes adjacent to a zone boundary in the second step.
    Type: Grant
    Filed: June 26, 2015
    Date of Patent: January 9, 2018
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jung Hwan Yi, Kyung Ho Jung
  • Patent number: 9857639
    Abstract: A method for manufacturing a liquid crystal lens includes: patterning an insulating layer into a plurality of insulating regions spaced apart from each other on a substrate using a first photo mask; depositing a conductive layer on the insulating layer; applying a first, negative photoresist onto the conductive layer; exposing the first photoresist using a second photo mask in which first regions of the first photoresist corresponding to portions between adjacent insulating regions are opened; exposing the first photoresist using a third photo mask in which second regions corresponding to tops of the plurality of insulating regions are opened; and etching the conductive layer using the first photoresist.
    Type: Grant
    Filed: January 14, 2016
    Date of Patent: January 2, 2018
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jung Hwan Yi, Jin Oh Song, Chun Ki Choi
  • Patent number: 9852103
    Abstract: Embodiments relate to half-duplex bidirectional transmission of data compliant with a first standard (e.g., Universal Serial Bus (USB) standard) over a physical channel of a multimedia link for transmitting audio/video (“A/V”) data compliant with a second standard (e.g., Mobile High-Definition Link (MHL) standard) between a source device and a sink device using time division multiplexing (TDM). The source device sends units of data including A/V data and forward data compliant with the first standard at first times whereas the sink device sends units of data including backward data compliant with the first standard at second times between transmissions from the source device. The first times do not overlap with the second times. Synchronization signals may be added to the first and second units of data to align character symbols embedded in the first and second units of data.
    Type: Grant
    Filed: April 8, 2015
    Date of Patent: December 26, 2017
    Assignee: Lattice Semiconductor Corporation
    Inventors: Ju Hwan Yi, Young Il Kim, Gijung Ahn, Min-Kyu Kim, Daeyun Shim, Gyudong Kim, Hoon Choi
  • Publication number: 20170317829
    Abstract: Embodiments relate to inserting a preamble code as a preamble of a sub-frame of encrypted data to indicate rekeying is to be performed at a source device and to indicate data of the sub-frame and subsequent sub-frames is encrypted. A sink device authenticates a source device using an authentication and encryption protocol. The sink device receives a data stream including audio data. At least a portion of the received audio data is encrypted and the encrypted audio data is packetized into sub-frames. The sink device inserts a first preamble code as a preamble of a sub-frame to indicate rekeying is to be performed at the source device according to the authentication and encryption protocol, and to indicate that the audio data in a payload of the sub-frame and payloads of subsequent sub-frames is encrypted. The sink device transmits the packet to the source device via a first data link.
    Type: Application
    Filed: December 7, 2015
    Publication date: November 2, 2017
    Applicant: Lattice Semiconductor Corporation
    Inventors: Ju Hwan Yi, Hoon Choi
  • Patent number: 9800642
    Abstract: A transmitter and receiver for communication of multimedia streams across a multi-lane communications link. The transmitter packetizes multimedia streams according to a link layer protocol and distributes the packets across multiple lanes of a communications link. The entire packet, including the header and payload, can be distributed across the lanes in an ordered sequence to increase utilization of the communication lanes. The transmitter may also packetize multiple multimedia streams and intermix the packets across the lanes of the communication lane. The receiver extracts the packets that are distributed across the multiple lanes and decodes the packets into the multimedia streams.
    Type: Grant
    Filed: November 21, 2016
    Date of Patent: October 24, 2017
    Assignee: Lattice Semiconductor Corporation
    Inventors: Ju Hwan Yi, Hoon Choi
  • Patent number: 9800886
    Abstract: A transmitting device for communicating via a multimedia communication link includes a compression circuitry that receives blanking period data corresponding to blanking states of video blanking periods. The compression circuitry compresses the blanking period data into compressed blanking period data. The transmitting device also includes an interface that transmits signals corresponding to the compressed blanking period data via one or more multimedia channels of the multimedia communication link.
    Type: Grant
    Filed: August 27, 2014
    Date of Patent: October 24, 2017
    Assignee: Lattice Semiconductor Corporation
    Inventors: Hoon Choi, Ju Hwan Yi
  • Patent number: 9743017
    Abstract: Embodiments of the invention are generally directed to an integrated mobile desktop. An embodiment of an apparatus includes a display chip to receive graphical data and produce video display signals; and a logic chip to receive data from a mobile device and the video display signals from the display chip to generate a display including at least a portion for a representation of a display of the mobile device. The logic chip provides for integration of operations for the apparatus and the mobile device using the generated display.
    Type: Grant
    Filed: July 11, 2013
    Date of Patent: August 22, 2017
    Assignee: Lattice Semiconductor Corporation
    Inventors: Marshall Goldberg, Wooseung Yang, Ju Hwan Yi, Seung Jong Lee
  • Publication number: 20170195719
    Abstract: In one aspect, a video processing device includes a processor and a transmitter, for example implemented as separate integrated circuits on a printed circuit board. Pins on the processor are coupled to pins on the transmitter via a data channel, for example conductive leads on the printed circuit board. Video data is transmitted from the processor to the transmitter via this data channel, which is high speed enough to accommodate video data. The transmitter also includes an encryption engine used to encrypt the video data. Encryption control data, which determines the encryption to be applied, is transmitted from the processor to the transmitter over the same data channel as the video data. This is more secure than transmitting the encryption control data over a slower separate data channel, because the high speed video channel is harder to tamper with.
    Type: Application
    Filed: March 17, 2017
    Publication date: July 6, 2017
    Inventors: Hoon Choi, Wooseung Yang, Ju Hwan Yi
  • Patent number: 9628855
    Abstract: In one aspect, a video processing device includes a processor and a transmitter, for example implemented as separate integrated circuits on a printed circuit board. Pins on the processor are coupled to pins on the transmitter via a data channel, for example conductive leads on the printed circuit board. Video data is transmitted from the processor to the transmitter via this data channel, which is high speed enough to accommodate video data. The transmitter also includes an encryption engine used to encrypt the video data. Encryption control data, which determines the encryption to be applied, is transmitted from the processor to the transmitter over the same data channel as the video data. This is more secure than transmitting the encryption control data over a slower separate data channel, because the high speed video channel is harder to tamper with.
    Type: Grant
    Filed: February 12, 2015
    Date of Patent: April 18, 2017
    Assignee: Lattice Semiconductor Corporation
    Inventors: Hoon Choi, Wooseung Yang, Ju Hwan Yi
  • Publication number: 20170099493
    Abstract: A video processing system has a source device and a sink device. The source device compresses raw video data and transmits the resulting compressed video data and at least some of the raw video data to the sink device. The sink device decompresses the transmitted compressed video data and generates a reconstructed output video frame, where each region of the output frame is based on a selection of either the corresponding raw video data or the corresponding decompressed video data. By using raw video data for some of the regions of the output frame, noticeable artifacts resulting from using a lossy video compression/decompression algorithm can be omitted. In one embodiment, the sink device compares regions of raw and decompressed video data to select data for the output frame and requests the source device to transmit specific regions of new raw video data based on those comparisons.
    Type: Application
    Filed: September 27, 2016
    Publication date: April 6, 2017
    Inventors: Ju Hwan YI, Young Don BAE
  • Patent number: 9606898
    Abstract: The present invention relates to a computing apparatus and to a method for providing a user application to be executed in a media playback apparatus. According to the present invention, the computing apparatus executes a developer application, and tests a user application in the media playback apparatus which is connected to the computer apparatus through a network. Thus, applications stored in a plurality of computing apparatuses can be tested using a single media playback apparatus.
    Type: Grant
    Filed: November 26, 2010
    Date of Patent: March 28, 2017
    Assignee: SK PLANET CO., LTD.
    Inventors: Wonjang Baek, John Kim, Doo Hwan Yi