Patents by Inventor Chien-Hau Wu

Chien-Hau Wu 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: 20240088182
    Abstract: In some embodiments, an image sensor is provided. The image sensor includes a photodetector disposed in a semiconductor substrate. A wave guide filter having a substantially planar upper surface is disposed over the photodetector. The wave guide filter includes a light filter disposed in a light filter grid structure. The light filter includes a first material that is translucent and has a first refractive index. The light filter grid structure includes a second material that is translucent and has a second refractive index less than the first refractive index.
    Type: Application
    Filed: November 21, 2023
    Publication date: March 14, 2024
    Inventors: Cheng Yu Huang, Chun-Hao Chuang, Chien-Hsien Tseng, Kazuaki Hashimoto, Keng-Yu Chou, Wei-Chieh Chiang, Wen-Chien Yu, Ting-Cheng Chang, Wen-Hau Wu, Chih-Kung Chang
  • Patent number: 8364880
    Abstract: An integrated transmission circuit and method for transmitting output data to a chipset via a transmission interface are provided. The integrated transmission circuit includes a first application circuit, a second application circuit, a media access control (MAC) circuit, and a physical layer (PHY) circuit. The first application circuit is used for receiving and processing first data to output first processed data. The second application circuit is used for receiving and processing second data to output second processed data. The MAC circuit is coupled to the first application circuit and the second application circuit, and used for encoding the first processed data and the second processed data so as to output encoded data. The PHY circuit is coupled to the MAC circuit to receive the encoded data so as to output the output data to the transmission interface.
    Type: Grant
    Filed: September 21, 2009
    Date of Patent: January 29, 2013
    Assignee: Realtek Semiconductor Corp.
    Inventors: Chih-Ching Chien, Tsai-Te Lin, Chien-Hau Wu
  • Publication number: 20100077123
    Abstract: An integrated transmission circuit and method for transmitting output data to a chipset via a transmission interface are provided. The integrated transmission circuit includes a first application circuit, a second application circuit, a media access control (MAC) circuit, and a physical layer (PHY) circuit. The first application circuit is used for receiving and processing first data to output first processed data. The second application circuit is used for receiving and processing second data to output second processed data. The MAC circuit is coupled to the first application circuit and the second application circuit, and used for encoding the first processed data and the second processed data so as to output encoded data. The PHY circuit is coupled to the MAC circuit to receive the encoded data so as to output the output data to the transmission interface.
    Type: Application
    Filed: September 21, 2009
    Publication date: March 25, 2010
    Inventors: Chih-Ching Chien, Tsai-Te Lin, Chien-Hau Wu
  • Publication number: 20070285180
    Abstract: A voltage control oscillator includes a first current source for providing a coarse tune current; a second current source for providing a fine tune current; and a delay line, coupled to the first current source and the second current source, comprising: a first delay cell, coupled to the first current source, for delaying a input clock according to the coarse tune current and outputting a delay clock; and a second delay cell, coupled to the second current source, for delaying the delay clock according to the fine tune current and outputting a output clock; wherein the coarse tune current is used to control the oscillating frequency of the voltage control oscillator close to a target frequency and the fine tune current is used to adjust oscillating frequency of the voltage control oscillator arrive the target frequency.
    Type: Application
    Filed: May 16, 2007
    Publication date: December 13, 2007
    Inventor: Chien-Hau Wu