Patents by Inventor Yun-Sung Wang

Yun-Sung Wang 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: 11916155
    Abstract: An optoelectronic package and a method for producing the optoelectronic package are provided. The optoelectronic package includes a carrier, a photonic device, a first encapsulant and a second encapsulant. The photonic device is disposed on the carrier. The first encapsulant covers the carrier and is disposed around the photonic device. The second encapsulant covers the first encapsulant and the photonic device. The first encapsulant has a topmost position and a bottommost position, and the topmost position is not higher than a surface of the photonic device.
    Type: Grant
    Filed: May 21, 2021
    Date of Patent: February 27, 2024
    Assignees: LITE-ON OPTO TECHNOLOGY (CHANGZHOU) CO., LTD., LITE-ON TECHNOLOGY CORPORATION
    Inventors: Chien-Hsiu Huang, Bo-Jhih Chen, Kuo-Ming Chiu, Meng-Sung Chou, Wei-Te Cheng, Kai-Chieh Liang, Yun-Ta Chen, Yu-Han Wang
  • Publication number: 20230199927
    Abstract: A hybrid dimming control device, which prevents image quality degradation during local dimming of a backlight unit, includes an analysis circuit configured to determine a type of dimming data for controlling the local dimming of a light source included in a backlight unit by analyzing the dimming data, a pulse width modulation (PWM) dimming control circuit configured to control the local dimming of the light source by a PWM method when the type of the dimming data is a first type, and an active dimming control circuit configured to convert some bits of the dimming data into an analog signal and control the local dimming of the light source using the analog signal when the type of the dimming data is a second type.
    Type: Application
    Filed: December 16, 2022
    Publication date: June 22, 2023
    Inventors: Yun Sung WANG, Sang Suk KIM, Jang Su KIM
  • Publication number: 20230197021
    Abstract: A system for controlling backlight unit capable of reducing a time difference between an image displayed on a display panel and local dimming of the backlight unit, includes a plurality of dimming control devices configured to receive an input data packet including dimming data, and control local dimming of a light source, which is included in a region assigned in advance in a backlight unit, using the dimming data, a plurality of gate lines configured to electrically connect a predetermined number of dimming control devices and configured to be sequentially driven according to a row driving method, and a micro controller unit configured to generate a gate control signal for driving the plurality of gate lines and the input data packet.
    Type: Application
    Filed: December 16, 2022
    Publication date: June 22, 2023
    Inventors: Yun Sung WANG, Soon Hyeok KWAK, Jang Su KIM, Sang Suk KIM
  • Publication number: 20230185758
    Abstract: A system for transmitting data based on serial communication, which allows the number of slave apparatuses connectable to one master apparatus to be increased, includes a master apparatus configured to generate an input data packet including first data, second data, and control data, and a slave apparatus group consisting of a plurality of slave apparatuses connected in a daisy-chain manner to the master apparatus, wherein each of the slave apparatuses determines first identification information (ID) using bits included in the first data, extracts second ID from the second data, and controls a target device using the control data when the first ID and the second ID match.
    Type: Application
    Filed: December 12, 2022
    Publication date: June 15, 2023
    Inventors: Yun Sung WANG, Kye Young KIM
  • Patent number: 8107013
    Abstract: An apparatus for recovering a chrominance signal from a sequential color with memory (SECAM) composite video baseband signal (CVBS), and more particularly, to a frequency demodulator and method of recovering a SECAM chrominance signal which can utilize both a real number portion and an imaginary number portion, and generate a frequency-demodulated chrominance signal using an arctangent approximation, and thereby can simplify a circuit configuration of a frequency demodulator to perform a fixed-point calculation is provided.
    Type: Grant
    Filed: August 15, 2007
    Date of Patent: January 31, 2012
    Assignee: Nextchip Co., Ltd.
    Inventors: Hyo-Ju Kim, Seong-Won Lee, Do-Gyun Kim, Yun-Sung Wang, Ji-Hoon Jang
  • Publication number: 20080049144
    Abstract: An apparatus for recovering a chrominance signal from a sequential color with memory (SECAM) composite video baseband signal (CVBS), and more particularly, to a frequency demodulator and method of recovering a SECAM chrominance signal which can utilize both a real number portion and an imaginary number portion, and generate a frequency-demodulated chrominance signal using an arctangent approximation, and thereby can simplify a circuit configuration of a frequency demodulator to perform a fixed-point calculation is provided.
    Type: Application
    Filed: August 15, 2007
    Publication date: February 28, 2008
    Applicant: NEXTCHIP CO., LTD.
    Inventors: Hyo-Ju Kim, Seong-Won Lee, Do-Gyun Kim, Yun-Sung Wang, Ji-Hoon Jang
  • Publication number: 20080049140
    Abstract: An apparatus for recovering a chrominance signal from a sequential color with memory (SECAM) composite video baseband signal (CVBS), and more particularly, an apparatus and method of recovering a SECAM chrominance signal to simplify a circuit configuration of a frequency demodulator since a phase different calculation scheme is simplified is provided. The apparatus for recovering a chrominance signal from a CVBS includes: a frequency demodulator calculating a phase difference between neighboring samples by using an arctangent approximation from an input signal; and a direct current (DC) compensation unit eliminating a DC offset from the calculated phase difference, wherein the phase difference corresponds to the chrominance signal.
    Type: Application
    Filed: August 17, 2007
    Publication date: February 28, 2008
    Applicant: NEXTCHIP CO., LTD.
    Inventors: Hyo-Ju Kim, Seong-Wen Lee, Do-Gyun Kim, Yun-Sung Wang, Ji-Hoon Jang