Patents by Inventor Vicky Chang

Vicky Chang 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: 20190042026
    Abstract: A display may include a substrate, an array of thin film transistors, an array of micro-light-emitting diode elements supported by the substrate and an array of sensing elements supported by the substrate. Each sensing element may include a continuous conductive layer functioning as part of the sensing element and extending along the substrate as an electrically conductive trace connected to one of the thin film transistors.
    Type: Application
    Filed: October 28, 2016
    Publication date: February 7, 2019
    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventors: Ning GE, Vicky CHANG, Helen A. HOLDER
  • Publication number: 20040267849
    Abstract: A band pass filter (BPF) for extracting a desired frequency band from an input signal that is represented in a sequence of data stream. Breaking through a traditional Infinite-duration Impulse Response (IIR) or Finite Impulse Response (FIR) filter design technologies, by using a difference of an input signal and a delayed version of the input signal, the present invention provides another way to make a band pass filter that greatly reduces the complexity, the costs, the power consumption, the design area required of an IIR or a FIR based band pass filter.
    Type: Application
    Filed: June 30, 2003
    Publication date: December 30, 2004
    Inventors: DAVID SHIUNG, WUNCHI LIN, VICKY CHANG
  • Publication number: 20040179632
    Abstract: A non-coherent frequency shift key demodulator, which includes a digital limiter and a decision logic circuit is disclosed. The digital limiter is used for receiving a baseband signal with a digital signal conveyed therein and comparing the baseband signal with a reference level in order to output a frequency-modulated rectangular pulse. The decision logic circuit, coupled to the digital limiter, is used for receiving the rectangular pulse and counting the transformation of the rectangular pulse to obtain a cycle period, wherein the cycle period is compared with a threshold value to determine the digital signal carried in the baseband signal.
    Type: Application
    Filed: May 19, 2003
    Publication date: September 16, 2004
    Inventors: David Shiung, Yung-Lung Chen, Wunchi Lin, Vicky Chang