Patents by Inventor Mark Zhang

Mark 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).

  • Virtual audio drivers and a virtual audio telephone interface
    Publication number: 20070189277
    Abstract: The present invention provides a system with virtual audio driver for the VoIP (voice over internet protocol) environment. The virtual audio driver is computer software, and it can be implemented by diverse possibilities. Including being implemented by different programming languages; supporting various operating systems (OS) and so on. It should be appreciated that the virtual audio driver is used for transferring the voice data, instead of producing the sounds. Besides, the present invention also provides a virtual telephone interface. After combining the virtual audio drivers and the virtual telephone interface with the VoIP client applications, users can simply answer VoIP calls from several VoIP client applications by single software.
    Type: Application
    Filed: January 31, 2006
    Publication date: August 16, 2007
    Inventors: Cheng-Jen Yang, Mark Zhang