Patents by Inventor Chung-Ming Huang

Chung-Ming Huang 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: 20090212864
    Abstract: A preamplifier used in a receiver is provided. The preamplifier comprises an input circuit and an output circuit. The input circuit receives an input differential voltage pair, pulls it down when the common voltage of the input differential voltage pair is higher than a reference voltage. The output circuit receives the input differential voltage pair outputted from the input circuit to pull high or low an output voltage accordingly.
    Type: Application
    Filed: February 21, 2008
    Publication date: August 27, 2009
    Applicant: HIMAX TECHNOLOGIES LIMITED
    Inventors: Chih-Haur Huang, Chung-Ming Huang
  • Patent number: 7576609
    Abstract: A preamplifier used in a receiver is provided. The preamplifier comprises an input circuit and an output circuit. The input circuit receives an input differential voltage pair, pulls it down when the common voltage of the input differential voltage pair is higher than a reference voltage. The output circuit receives the input differential voltage pair outputted from the input circuit to pull high or low an output voltage accordingly.
    Type: Grant
    Filed: February 21, 2008
    Date of Patent: August 18, 2009
    Assignee: Himax Technologies Limited
    Inventors: Chih-Haur Huang, Chung-Ming Huang
  • Publication number: 20090175191
    Abstract: Presented are methods and systems for providing bandwidth estimation and correction in a communications network. Bandwidth estimation and correction can include calculating a round trip time (RTT) value and a packet loss rate (PLR) value for each packet of a set of packets transmitted at different points in time from a server to a client terminal over the communications network; determining a bandwidth estimate based on the RTT and PLR values for the set of packets transmitted; determining a bandwidth measurement based on the RTT and PLR values for the set of packets; and determining a corrected bandwidth estimate based on the bandwidth estimate and the bandwidth measurement.
    Type: Application
    Filed: December 2, 2008
    Publication date: July 9, 2009
    Inventors: Chung-Wei LIN, Xin-Ying LIN, Chung-Ming HUANG
  • Patent number: 7532658
    Abstract: An apparatus for reducing electromagnetic interference and a method therefor. The invention generates a spread-spectrum clock according to an original clock, receives a data bit stream according to the original clock, and outputs the data bit stream according to the spread-spectrum clock. The apparatus of the invention includes a spread-spectrum buffer for temporarily storing the data bit stream, a frequency generator for generating a spread-spectrum clock according to an up signal and a down signal, and a spread-spectrum controller for determining the up signal and the down signal according to the storage of the spread-spectrum buffer.
    Type: Grant
    Filed: May 27, 2004
    Date of Patent: May 12, 2009
    Assignee: Himax Technologies Limited
    Inventors: Lin-Kai Bu, Chung-Ming Huang
  • Patent number: 7450675
    Abstract: A multi-channel receiver, digital edge tuning circuit and a method for operating the same is disclosed. The digital edge tuning circuit for tuning phases of an input signal and a clock signal, comprises a delay-tuning circuit for receiving the input signal and delaying the input signal to generate a fine-tuned signal; a delay set comprising a plurality of delays connected serially one by one, the input of the delay set coupled to the fine-tune circuit, for receiving the fine-tuned signal; a plurality of sample/hold circuits, each of the sample/hold circuits coupled to a corresponding output of one of the delays and the fine-tune circuit, for sampling and holding the corresponding output; and a dynamic edge tuning circuit, coupled to the sample/hold circuits, for controlling a common delay time delayed by the delay-tuning circuit according to which one of the sample/hold circuits samples a data edge of the input signal.
    Type: Grant
    Filed: June 28, 2005
    Date of Patent: November 11, 2008
    Assignee: Himax Technologies Limited
    Inventors: Hui-Min Wang, Chung-Ming Huang, Lin-Kai Bu
  • Publication number: 20080158220
    Abstract: A power-on-reset circuit used to detect a first supply voltage for resetting a semiconductor device within an electric system is provided. The power-on-reset circuit is equipped with the first supply voltage to power the semiconductor device and a second supply voltage generated prior to the first supply voltage. The power-on-reset circuit includes a voltage divider, a bandgap reference circuit and a comparator. The voltage divider is powered by the first supply voltage to generate a proportional input voltage. The bandgap reference circuit is powered by the second supply voltage to generate a constant reference voltage. The comparator compares the proportional input voltage with the constant reference voltage, so as to generate a power-on-reset signal when the proportional input voltage exceeds the constant reference voltage. Therefore, when the first supply voltage is sufficiently large, the power-on-reset circuit can correctly reset the electric system.
    Type: Application
    Filed: January 3, 2007
    Publication date: July 3, 2008
    Applicant: HIMAX TECHNOLOGIES LIMITED
    Inventors: Chung-Ming Huang, Chih-Haur Huang
  • Publication number: 20080055930
    Abstract: A backlight module includes multiple light sources and optical films; those optical films being disposed over those light sources to allow streams of light emitted from each light source radiate through those optical films to reach the expected performance of light source; those light sources being arranged in proper spacing; those diffusion films being arranged over those light sources in the same spacing of that for those light sources; and diffusion effects by those diffusion films reducing luminance over those light sources to correct the phenomenon of producing darker and brighter bands in the backlight module.
    Type: Application
    Filed: January 17, 2007
    Publication date: March 6, 2008
    Inventor: Chung-Ming Huang
  • Publication number: 20060239383
    Abstract: A multi-channel receiver, digital edge tuning circuit and a method for operating the same is disclosed. The digital edge tuning circuit for tuning phases of an input signal and a clock signal, comprises a delay-tuning circuit for receiving the input signal and delaying the input signal to generate a fine-tuned signal; a delay set comprising a plurality of delays connected serially one by one, the input of the delay set coupled to the fine-tune circuit, for receiving the fine-tuned signal; a plurality of sample/hold circuits, each of the sample/hold circuits coupled to a corresponding output of one of the delays and the fine-tune circuit, for sampling and holding the corresponding output; and a dynamic edge tuning circuit, coupled to the sample/hold circuits, for controlling a common delay time delayed by the delay-tuning circuit according to which one of the sample/hold circuits samples a data edge of the input signal.
    Type: Application
    Filed: June 28, 2005
    Publication date: October 26, 2006
    Inventors: Hui-Min Wang, Chung-Ming Huang, Lin-Kai Bu
  • Publication number: 20040240522
    Abstract: An apparatus for reducing electromagnetic interference and a method therefor. The invention generates a spread-spectrum clock according to an original clock, receives a data bit stream according to the original clock, and outputs the data bit stream according to the spread-spectrum clock. The apparatus of the invention includes a spread-spectrum buffer for temporarily storing the data bit stream, a frequency generator for generating a spread-spectrum clock according to an up signal and a down signal, and a spread-spectrum controller for determining the up signal and the down signal according to the storage of the spread-spectrum buffer.
    Type: Application
    Filed: May 27, 2004
    Publication date: December 2, 2004
    Inventors: Lin-Kai Bu, Chung-Ming Huang
  • Patent number: 5960112
    Abstract: A method and a device for the automatic matching of seal prints including a first memory to store reference seal prints, an input device to obtain the image of a test seal print, a second memory to store the test seal print, an image structure similarity calculation device to calculate the similarity in the structure of the image of the reference seal print and the test seal print, a line distribution similarity calculation device to calculate the similarity in the distribution of the lines in the reference seal print and the test seal print, an incompleteness calculation device to calculate the incompleteness of the image of the reference seal print and the test seal print, and a determination device to determine whether the two seal prints are from the same source according to a pre-determined threshold.
    Type: Grant
    Filed: November 26, 1996
    Date of Patent: September 28, 1999
    Assignee: Wen-Hsing HSU
    Inventors: Wen-Han Lin, Chung-Ming Huang
  • Patent number: 5337670
    Abstract: A process for the transfer printing of a golf club head including steps of forming a golf club head, polishing the golf club head with sand blast which consists of particles of sand, powdered quartz, chilled iron globules, emery, or other hard granular material blown by a jet of compressed air, spraying paint on the golf club head thereby forming a layer of paint on the surface thereof, placing the golf club head into a furnace for baking for fixing the paint thereon, cooling the golf club head thus forming a semi-product, covering the golf club head with a piece of mold paper, and disposing the golf club head in a steam furnace at 260 degrees centigrade for 10 minutes hence causing the ink pattern on the mold paper to be printed on the paint of the golf club head consequently producing a golf club head with desired patterns thereon.
    Type: Grant
    Filed: January 6, 1994
    Date of Patent: August 16, 1994
    Inventor: Chung Ming Huang