Patents by Inventor Eric Zhou

Eric Zhou 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).

  • Method and apparatus for handling DTMF requests when inter-switch handover is involved
    Patent number: 7941146
    Abstract: In an embodiment of the method for handling subscriber input during interswitch handover of a call from a first switching station to a second switching station, DTMF digits received at the second switching station are sent in a message to the first switching station. The first switching station then performs an operation on the received digits such as playing the DTMF tones to a network or triggering a service.
    Type: Grant
    Filed: January 10, 2007
    Date of Patent: May 10, 2011
    Assignee: Alcatel-Lucent USA Inc.
    Inventors: Eric Zhou, Oliver Chen, Andrew Huang, Jennifer He, Seaman Chen
  • Method and apparatus for handling DTMF requests when inter-switch handover is involved
    Publication number: 20070254660
    Abstract: In an embodiment of the method for handling subscriber input during interswitch handover of a call from a first switching station to a second switching station, DTMF digits received at the second switching station are sent in a message to the first switching station. The first switching station then performs an operation on the received digits such as playing the DTMF tones to a network or triggering a service.
    Type: Application
    Filed: January 10, 2007
    Publication date: November 1, 2007
    Inventors: Eric Zhou, Oliver Chen, Andrew Huang, Jennifer He, Seaman Chen