Patents by Inventor Yidong Wang

Yidong Wang 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: 20060222009
    Abstract: A UMTS extension to the GSM/GPRS RIL is disclosed. The UTMS RIL provides an API set interface for the support of UMTS features such as 3G QoS, secondary PDP contexts call, priority service, voice group call and voice broadcast services, etc. The API set is based on the UMTS AT command interface as defined in 3GPP specification TS 27.007. The architecture of the UMTS RIL is designed as a standard interface with APIs and callback mechanisms that can be used across different platforms and multi-radio hardware such as GSM, GPRS, WCDMA, and HSDPA. The UTMS RIL may enable various applications running on mobile platforms in 2G, 2.5G, and 3G cellular radio stacks to issue commands without knowledge of underlying radio hardware structure.
    Type: Application
    Filed: March 29, 2005
    Publication date: October 5, 2006
    Applicant: Microsoft Corporation
    Inventors: Richard Yao, Zihua Guo, Yidong Wang, Pung Xu, Steven Elliott
  • Publication number: 20040196975
    Abstract: Subject matter includes exemplary systems and related methods for fully scalable encryption of scalable multimedia. A scalable bitstream encrypted using the subject matter maintains full functionality of scalable features in the encrypted form. The exemplary scalable encryption allows transcoding, rate shaping, and other operations directly on the ciphertext without degradation of scalable compression efficiency and error resiliency.
    Type: Application
    Filed: April 1, 2003
    Publication date: October 7, 2004
    Applicant: MICROSOFT CORPORATION
    Inventors: Bin Zhu, Chun Yuan, Yidong Wang, Shipeng Li