Patents by Inventor Wentao Zhang

Wentao 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: 20100198512
    Abstract: The present invention is related to location positioning systems, and more particularly, to a method and apparatus for providing reliable extended ephemeris information and indicators of quality. According to one aspect, the invention employs a concept of Approximate Accuracy Symmetry, in which a history of broadcast ephemerides is logged for each satellite, and used as a reference to evaluate the potential accuracy of the predicted orbit for each satellite in the future. According to further aspects, the desired accuracy information for the extended ephemerides can be reliably provided in advance.
    Type: Application
    Filed: January 30, 2009
    Publication date: August 5, 2010
    Inventors: Wentao ZHANG, Shaowel Han
  • Publication number: 20090237300
    Abstract: Provided herein are methods and systems for efficient communication between a server and a client in an assisted navigation system. In one or more embodiments, the client, e.g., a GPS receiver, receives a set of parameters for a satellite from the server via a wireless or wired connection. The set of parameters includes a force parameter, initial condition parameters and time correction coefficients for the satellite. The receiver uses the received parameters in a numerical integration to compute the position of the satellite at a desired time. The set of parameters needed for the integration is small compared to current methods which require sending more data to the client. Thus these parameters require less communication resources to transmit. To further reduce the amount of data that needs to be transmitted, reference parameters may be subtracted from the original parameters before transmission from the server.
    Type: Application
    Filed: June 2, 2009
    Publication date: September 24, 2009
    Applicant: SiRF Technology, Inc.
    Inventors: Shaowei HAN, Wentao Zhang
  • Publication number: 20090232828
    Abstract: The invention provides methods of treating cancer with a compound which inhibits kinases, more specifically IGF1R and Abl, in combination with treatments(s) selected from surgery, radiation, monoclonal antibody, bone marrow or peripheral blood stem cell transplantation, and one or more chemotherapeutic agent(s).
    Type: Application
    Filed: July 3, 2007
    Publication date: September 17, 2009
    Applicant: EXELIXIS, INC.
    Inventor: Wentao Zhang
  • Patent number: 7439907
    Abstract: The present invention provides methods and systems that enable a mobile navigation receiver to accurately determine its trajectory with non-current ephemeris in stand-alone mode. In an embodiment, the receiver computes the position for the same location using non-current ephemeris and current ephemeris at different time instances. The receiver then determines a position correction by finding the difference between these two computed positions, and applies this correction to the trajectory generated with non-current ephemeris to obtain a more accurate trajectory. In another embodiment, the receiver computes an initial position of the receiver using non-current ephemeris and finds the difference between the computed initial position and an accurate approximation of the initial position. The receiver then shifts the subsequent receiver trajectory computed using non-current ephemeris by the difference to obtain a more accurate trajectory.
    Type: Grant
    Filed: November 20, 2006
    Date of Patent: October 21, 2008
    Assignee: SIRF Technology Holdihgs, Inc.
    Inventors: Chi-Shin Wang, David Wang, Wentao Zhang, Jun Mo, Lei Dong
  • Publication number: 20080117100
    Abstract: The present invention provides methods and systems that enable a mobile navigation receiver to accurately determine its trajectory with non-current ephemeris in stand-alone mode. In an embodiment, the receiver computes the position for the same location using non-current ephemeris and current ephemeris at different time instances. The receiver then determines a position correction by finding the difference between these two computed positions, and applies this correction to the trajectory generated with non-current ephemeris to obtain a more accurate trajectory. In another embodiment, the receiver computes an initial position of the receiver using non-current ephemeris and finds the difference between the computed initial position and an accurate approximation of the initial position. The receiver then shifts the subsequent receiver trajectory computed using non-current ephemeris by the difference to obtain a more accurate trajectory.
    Type: Application
    Filed: November 20, 2006
    Publication date: May 22, 2008
    Inventors: Chi-Shin Wang, David Wang, Wentao Zhang, Jun Mo, Lei Dong
  • Publication number: 20070208166
    Abstract: The invention provides compounds and methods for inhibition of kinases, such as those of the TAO family, more specifically KIAA1361, TAO, and JIK kinases. The invention provides compounds for modulating protein kinase enzymatic activity for modulating cellular activities such as proliferation, differentiation, programmed cell death, migration and chemoinvasion. Compounds of the invention inhibit, regulate and/or modulate kinase receptor signal transduction pathways related to the changes in cellular activities as mentioned above, and the invention includes compositions which contain these compounds, and methods of using them to treat kinase-dependent diseases and conditions.
    Type: Application
    Filed: October 22, 2004
    Publication date: September 6, 2007
    Applicant: Exelixis, Inc.
    Inventors: Deborah Baly, Adam Galan, Mohamed Ibrahim, Christopher Jaeger, Patrick Kearney, James Leahy, Gary Lewis, Kirk McMillan, Robin Noguchi, John Nuss, Jason Parks, Kevin Schnepp, Xian Shi, Matthew Williams, Wei Xu, Wentao Zhang
  • Patent number: 7064218
    Abstract: The present invention provides novel compounds possessing one or more of the following activities: antibacterial, antifungal and antitumor activity. The compounds are of Formula (I): Pharmaceutical compositions containing these compounds, methods of making and methods for using these compounds are also provided.
    Type: Grant
    Filed: December 24, 2002
    Date of Patent: June 20, 2006
    Assignee: Genelabs Technologies, Inc.
    Inventors: Natalia B. Dyatkina, Dong-Fang Shi, Christopher Don Roberts, Mark Douglas Velligan, Sebastian Johannes Reinhard Liehr, Janos Botyanszki, Wentao Zhang, Alexander Khorlin, Peter Harold Nelson, Joseph Martin Muchowski
  • Patent number: 6906103
    Abstract: The present invention provides novel compounds possessing one or more of the following activities: antibacterial, antifungal and antitumor activity. The compounds are of Formula (I): Pharmaceutical compositions containing these compounds, methods of making and methods for using these compounds are also provided.
    Type: Grant
    Filed: October 23, 2002
    Date of Patent: June 14, 2005
    Assignee: Genelabs Technologies, Inc.
    Inventors: Wentao Zhang, Sebastian Johannes Reinhard Liehr, Mark Douglas Velligan, Natalia B. Dyatkina, Janos Botyanszki, Dong-Fang Shi, Christopher Don Roberts, Alexander Khorlin, Peter Harold Nelson, Joseph Martin Muchowski
  • Patent number: 6849713
    Abstract: The present invention provides novel compounds possessing one or more of the following activities: antibacterial, antifungal and antitumor activity. The compounds are of Formula (I): Pharmaceutical compositions containing these compounds, methods of making and methods for using these compounds are also provided.
    Type: Grant
    Filed: June 26, 2001
    Date of Patent: February 1, 2005
    Assignee: Genelabs Technologies, Inc.
    Inventors: Wentao Zhang, Sebastian Johannes Reinhard Liehr, Mark Douglas Velligan, Natalia B. Dyatkina, Janos Botyanszki, Dong-Fang Shi, Christopher Don Roberts, Alexander Khorlin, Peter Harold Nelson, Joseph Martin Muchowski
  • Publication number: 20030212113
    Abstract: The present invention provides novel compounds possessing one or more of the following activities: antibacterial, antifungal and antitumor activity.
    Type: Application
    Filed: December 24, 2002
    Publication date: November 13, 2003
    Inventors: Natalia B. Dyatkina, Dong-Fang Shi, Christopher Don Roberts, Mark Douglas Velligan, Sebastian Johannes Reinhard Liehr, Janos Botyanszki, Wentao Zhang, Alexander Khorlin, Peter Harold Nelson, Joseph Martin Muchowski
  • Publication number: 20030119749
    Abstract: The present invention provides novel compounds possessing one or more of the following activities: antibacterial, antifungal and antitumor activity.
    Type: Application
    Filed: October 23, 2002
    Publication date: June 26, 2003
    Inventors: Wentao Zhang, Sebastian Johannes Reinhard Liehr, Mark Douglas Velligan, Natalia B. Dyatkina, Janos Botyanszki, Dong-Fang Shi, Christopher Don Roberts, Alexander Khorlin, Peter Harold Nelson, Joseph Martin Muchowski
  • Publication number: 20020037856
    Abstract: The present invention provides novel compounds possessing one or more of the following activities: antibacterial, antifungal and antitumor activity.
    Type: Application
    Filed: June 26, 2001
    Publication date: March 28, 2002
    Inventors: Wentao Zhang, Sebastian Johannes Reinhard Liehr, Mark Douglas Velligan, Natalia B. Dyatkina, Janos Botyanszki, Dong-Fang Shi, Christopher Don Roberts, Alexander Khorlin, Peter Harold Nelson, Joseph Martin Muchowski