Patents by Inventor Daqing Zhang

Daqing Zhang 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: 20090185542
    Abstract: Present invention is to provide a method and apparatus for controlling energy expanding of sensor network nodes, wherein the method comprises steps of: acquiring energy information, said energy information being indicative of an energy status of a node in the network; and adjusting at least one data transmission parameter accordingly based on the energy information. With present invention, on the premise that the communication capacity and power energy of sensor nodes are limited in a wireless sensor network, it is capable of efficiently utilize the network resource, save the power consumption of sensor node, and prolong the whole life of sensor network.
    Type: Application
    Filed: April 19, 2007
    Publication date: July 23, 2009
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.
    Inventors: Daqing Zhang, Ningjiang Chen, Jin Wang
  • Publication number: 20090060056
    Abstract: A method for concealing errors in a video decoding process according to the invention, wherein said method comprises the steps of: receiving a frame of video picture comprising an comprising an error-existing picture area and a neighboring picture area; searching a similar picture area to said neighboring picture area according to a predetermined condition in a frame of reference picture of said video picture; concealing said existing errors by using the information in said video picture if said similar picture area is not found, or concealing said existing errors by using the information in said reference picture if said similar picture area is found.
    Type: Application
    Filed: October 20, 2005
    Publication date: March 5, 2009
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS, N.V.
    Inventor: Daqing Zhang
  • Publication number: 20090024666
    Abstract: The present invention discloses a method for generating metadata, said metadata being associated with a content, the method comprising the steps of obtaining the uncompressed digital signal of said content; determining the feature data of said uncompressed digital signal, said feature data being associated with the features that can be physiologically sensed in the analog signal that corresponds to said uncompressed digital signal; and creating metadata that are associated with the physiological emotion according to said feature data. Therefore, a user can directly obtain metadata reflecting the physiological emotion.
    Type: Application
    Filed: January 25, 2007
    Publication date: January 22, 2009
    Applicant: Koninklijke Philips Electronics N.V.
    Inventors: Jin Wang, Daqing Zhang, Xiaowei Shi
  • Publication number: 20080301538
    Abstract: The present invention provides a method and apparatus for detecting video data errors, said video data including a plurality of successive frame image data, said method comprising the steps of acquiring the processing sequence information of two frame image data in said video data, said two frame image data being immediately adjacent in the processing sequence, one after the other, determining the processing sequence information difference between two frame image data, comparing said information difference with a reference value and judging, based on said comparison result, whether there is a frame image data miss between said two frame image data. The method and apparatus provided by the invention can, not only judge whether there is a frame image data missing between the two immediate adjacent frames, but also determine the amount of the missing frame image data and performs a restoring and correcting process.
    Type: Application
    Filed: November 24, 2006
    Publication date: December 4, 2008
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS, N.V
    Inventors: Jin Wang, Daqing Zhang
  • Publication number: 20080260046
    Abstract: A coding/decoding method and an apparatus for improving video error concealment are provided, wherein the coding method comprises obtaining the relevant information of a mostly matching area for an area, wherein both the mostly matching area and the area are located in the same picture; and coding the relevant information of the mostly matching area into a coded video stream comprising the area. With the error concealment of the present invention, only several bits are required to be added when coding, whereby the whole picture appears more natural during decoding and error concealment, and the picture quality is also significantly enhanced.
    Type: Application
    Filed: September 15, 2006
    Publication date: October 23, 2008
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS, N.V.
    Inventors: Daqing Zhang, Jin Wang
  • Publication number: 20080199153
    Abstract: A coding and decoding method and device for improving video error concealment is disclosed in the present invention. The coding method includes the steps of: obtaining a macro block smoothness information of a macro block in a video stream, which indicates whether the boundaries of the macro block are smooth or not; and coding the macro block smoothness information into a coded video stream. The decoding method includes the steps of: determining whether the boundaries of a lost macro block are smooth or not according to the macro block smoothness information of the lost macro block in a video stream; smoothing the displacing macro block for the lost macro block if the boundaries are smooth. The smoothed displacing macro block is more similar to the original macro block, thereby the whole image is more natural with a small coding cost but a highly improved image quality; further, the calculation amount thereof is small, and the cost to realize it is relatively low.
    Type: Application
    Filed: June 9, 2006
    Publication date: August 21, 2008
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS, N.V.
    Inventors: Jin Wang, Daqing Zhang, Jiagang Zhang
  • Publication number: 20080187039
    Abstract: The present invention discloses a method of correcting a video signal that includes a video sequence parameter. The method comprises the steps of: obtaining a specific number of decoded values of the video sequence parameter; counting the times of occurrence of each different value of the decoded values; determining a correction value from the counting result; and correcting the decoded values of the video sequence parameter on the basis of the correction value. The present invention further discloses a correcting apparatus and a decoding apparatus of a video signal. With the present invention, it is able to find out conveniently a correction value of a video sequence parameter so as to correct the subsequent decoded values.
    Type: Application
    Filed: January 18, 2006
    Publication date: August 7, 2008
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS, N.V.
    Inventors: Daqing Zhang, Jiagang Zhang, Jin Wang
  • Publication number: 20070284863
    Abstract: An airbag module integrates the components required for gas generation, thereby eliminating the need for a separate inflation component. The airbag module can comprise a cover with a pocket, a gas generant container, an inflatable cushion an upper and lower retainer housing, and an inflation gas generation system in fluid communication with the cushion. The airbag module does not comprise a discrete inflator that is functional outside the assembled airbag module. The gas generant container houses a package of solid gas generating compound. The energetic materials of the propellant do not become functional as a gas generation source until the cover is secured to the lower retainer housing.
    Type: Application
    Filed: May 18, 2007
    Publication date: December 13, 2007
    Inventors: William Bostick, James Karlow, Dave McCormick, Barney Bauer, Henk Helleman, Simin Zeng, Daqing Zhang, Hideki Mizuno
  • Publication number: 20070240046
    Abstract: Embodiments of an apparatus, method, and article of manufacture for controlling view navigation in a workflow environment are disclosed herein. View navigation is controlled by incorporating and utilizing a user-interact operation in a workflow editing application. A workflow process designer may define the user-interact operation from one or more pre-designed views provided for the particular business objectives associated with the workflow process. In one embodiment, users may be navigated to specific views to gather information necessary to the completion of the workflow process, or to facilitate the processing of information across the workflow process to accomplish the business objectives embodied in the workflow process.
    Type: Application
    Filed: September 3, 2002
    Publication date: October 11, 2007
    Inventors: Heung-Wah Yan, Daqing Zhang, Duane Wandless