Patents by Inventor Wang Yang Chang

Wang Yang Chang 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).

  • Data communication device
    Patent number: 5822692
    Abstract: A data communication device is provided that can be connected to a host computer to add communications capabilities to the host. The data communication device contains a user-programmable multi-channel pager/e-mail receiver that has both numeric and alphanumeric capabilities and a modem. Further, the data communication device may be used with the host as a telephone set or a telephone answering machine. When the device is used as a telephone answering machine and a user desires to retrieve stored messages, the local telephone office is prevented from placing a fast busy signal on the telephone line. The user can update the firmware of the data communication device, or it can be updated remotely by downloading a new firmware version using the pager/e-mail receiver.
    Type: Grant
    Filed: September 4, 1996
    Date of Patent: October 13, 1998
    Assignee: Flat Connections, Inc.
    Inventors: Baldev Krishan, Wang Yang Chang
  • Combined speaker and base therefor
    Patent number: D430142
    Type: Grant
    Filed: July 1, 1999
    Date of Patent: August 29, 2000
    Assignee: Gallant Computer, Inc.
    Inventors: Ing Der Kuo, Wang Yang Chang, David Han