Patents by Inventor Tuo Wu

Tuo 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: 20190241756
    Abstract: An example of a shipping fluid for a printhead device includes at least one solvent, at least one additive, at least one surfactant, and water. The solvent includes at least one carbohydrate in an amount of about 10 wt % or more based on the total weight of the shipping fluid. The shipping fluid does not contain a visible colorant, which absorbs light in wavelengths of greater than 400 nm and wavelengths of less than 700 nm. The shipping fluid is free of n-alkyl pyrrolidone.
    Type: Application
    Filed: January 31, 2017
    Publication date: August 8, 2019
    Inventors: Howard Doumaux, Mariano Dinares Argemi, Jennifer Korngiebel, Tuo Wu, Madhu Babu
  • Patent number: 9632523
    Abstract: Aspects of the disclosure provide a circuit for peak voltage detection. The circuit includes a diode-based peak detector and a compensation circuit. The diode-based peak detector has a first diode, and is configured to receive a signal for peak voltage detection and generate a first voltage of a stable level indicative of a peak voltage of the signal based on the first diode. The compensation circuit has a second diode. The compensation circuit is configured to receive the first voltage and generate a second voltage of a stable level that is independent of the first diode.
    Type: Grant
    Filed: October 9, 2014
    Date of Patent: April 25, 2017
    Assignee: Marvell World Trade Ltd.
    Inventors: Ruiqiang Liu, Hongzheng Han, Tuo Wu
  • Publication number: 20150102796
    Abstract: Aspects of the disclosure provide a circuit for peak voltage detection. The circuit includes a diode-based peak detector and a compensation circuit. The diode-based peak detector has a first diode, and is configured to receive a signal for peak voltage detection and generate a first voltage of a stable level indicative of a peak voltage of the signal based on the first diode. The compensation circuit has a second diode. The compensation circuit is configured to receive the first voltage and generate a second voltage of a stable level that is independent of the first diode.
    Type: Application
    Filed: October 9, 2014
    Publication date: April 16, 2015
    Applicant: MARVELL WORLD TRADE LTD
    Inventors: Ruiqiang LIU, Hongzheng HAN, Tuo WU
  • Patent number: 8885862
    Abstract: In one embodiment, a kit for making a display includes a first medium, a support element, and first and second wave generators. The first medium is foldable according to scoring to form a display with a cavity. The element is attachable or attached to a back surface of the folded first medium, to be positioned at least partially within the cavity. The first wave generator is attachable or attached to the back surface, to receive signals from a signal generator and produce mechanical waves that cause the first medium to vibrate and generate audible acoustic waves within a first frequency range. The second wave generator is attachable or attached to the element, to receive signals from the signal generator and produce mechanical waves that cause the element to vibrate and generate audible acoustic waves within a second frequency range, different from the first frequency range.
    Type: Grant
    Filed: August 28, 2012
    Date of Patent: November 11, 2014
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: David P Rossing, Xiaoqi Zhou, Steve Ledak, Paul C Landrum, Tuo Wu
  • Publication number: 20140064515
    Abstract: In one embodiment, a kit for making a display includes a first medium, a support element, and first and second wave generators. The first medium is foldable according to scoring to form a display with a cavity. The element is attachable or attached to a back surface of the folded first medium, to be positioned at least partially within the cavity. The first wave generator is attachable or attached to the back surface, to receive signals from a signal generator and produce mechanical waves that cause the first medium to vibrate and generate audible acoustic waves within a first frequency range. The second wave generator is attachable or attached to the element, to receive signals from the signal generator and produce mechanical waves that cause the element to vibrate and generate audible acoustic waves within a second frequency range, different from the first frequency range.
    Type: Application
    Filed: August 28, 2012
    Publication date: March 6, 2014
    Inventors: David P. Rossing, Xiaoqi Zhou, Steve Ledak, Paul C. Landrum, Tuo Wu
  • Publication number: 20130004070
    Abstract: A preferred skin tone region is determined within a luminance-chrominance color space for each of a plurality of luminance values. Additional preferred skin tone regions are determined by interpolation in view of the initially determined preferred skin tone regions. An ellipsoid skin-color model is generated in the luminance-chrominance color space based on the preferred skin tone regions. The ellipsoid skin-color is used to detect a skin color pixel in an image and adjust one or more color values for the skin color pixel.
    Type: Application
    Filed: June 28, 2011
    Publication date: January 3, 2013
    Inventors: Huanzhao Zeng, Shilin Guo, Tuo Wu