Patents by Inventor Yongqian Zheng

Yongqian Zheng 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).

  • Patent number: 9363298
    Abstract: Methods and systems for providing simplified presence for a user are described. The user has a plurality of associated communication devices registered with a communications server, and each communication device enables at least one communication service class. The server has a user data entry associating the user with each of the plurality of communication devices. To hide the details of the user-associated devices from third parties, a virtual device is defined and associated with the user. Presence information received at the server from the various devices is aggregated together to create aggregated presence information that indicates at least the service classes available from the user-associated devices based on the received presence information. A virtual device presence document is generated containing the aggregated presence information and is provided to a presence server as presence information associated with the user.
    Type: Grant
    Filed: March 5, 2013
    Date of Patent: June 7, 2016
    Assignee: BlackBerry Limited
    Inventors: Michael Colbert, Michael Gray, Yongqian Zheng, Shen-Yuan Michael Yap
  • Patent number: 8417786
    Abstract: Methods and systems for providing simplified presence for a user are described. The user has a plurality of associated communication devices registered with a communications server, and each communication device enables at least one communication service class. The server has a user data entry associating the user with each of the plurality of communication devices. To hide the details of the user-associated devices from third parties, a virtual device is defined and associated with the user. Presence information received at the server from the various devices is aggregated together to create aggregated presence information that indicates at least the service classes available from the user-associated devices based on the received presence information. A virtual device presence document is generated containing the aggregated presence information and is provided to a presence server as presence information associated with the user.
    Type: Grant
    Filed: September 23, 2008
    Date of Patent: April 9, 2013
    Assignee: Research In Motion Limited
    Inventors: Michael Colbert, Michael Gray, Yongqian Zheng, Shen-Yuan Michael Yap
  • Publication number: 20120071202
    Abstract: A smart phone is provided. The smart phone comprises a dual-tone multi-frequency (DTMF) key configured such that when the DTMF key is activated and when a key on a keypad on the smart phone is selected, the smart phone generates and transmits a DTMF tone corresponding to the selected key.
    Type: Application
    Filed: September 17, 2010
    Publication date: March 22, 2012
    Applicant: RESEARCH IN MOTION LIMITED
    Inventor: Yongqian Zheng
  • Publication number: 20100075673
    Abstract: Methods and systems for providing simplified presence for a user are described. The user has a plurality of associated communication devices registered with a communications server, and each communication device enables at least one communication service class. The server has a user data entry associating the user with each of the plurality of communication devices. To hide the details of the user-associated devices from third parties, a virtual device is defined and associated with the user. Presence information received at the server from the various devices is aggregated together to create aggregated presence information that indicates at least the service classes available from the user-associated devices based on the received presence information. A virtual device presence document is generated containing the aggregated presence information and is provided to a presence server as presence information associated with the user.
    Type: Application
    Filed: September 23, 2008
    Publication date: March 25, 2010
    Inventors: Michael Colbert, Michael Gray, Yongqian Zheng, Shen-Yuan Michael Yap