Patents by Inventor Wen K. Han

Wen K. Han 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: 20070263608
    Abstract: Voice communication between a mobile station and a packet-based voice communication system is handled. A communication interface for mobile station access to a telecommunication network over a public data network according to a first protocol is emulated at a gateway system. Communications pass between the gateway and the packet-based voice communication system according to a second protocol. Control communication information passing between the mobile station and the packet-based voice communication system is converted.
    Type: Application
    Filed: April 4, 2006
    Publication date: November 15, 2007
    Inventors: Wen K. Han, Steven H. Blumenthal
  • Patent number: 5633911
    Abstract: A telepoint communication system 100 where the telepoint communication unit (TCU) 125 reserves a communication channel on the communication link 126, where the communication link 126 couples the telepoint base station (TBS) 110 to the public switched telephone network (PSTN) 105. Reserving the communication channel is accomplished by communicating information packets 130,133,136,140,143 and 146 between the TCU 125 and the TBS 110. Reserving the communication channel enables the TCU 125 to ensure the reserved communication is available to route incoming calls received on the telepoint communication system 100 to the TCU 125, particularly when an incoming call is expected.
    Type: Grant
    Filed: January 23, 1995
    Date of Patent: May 27, 1997
    Assignee: Motorola, Inc.
    Inventors: Wen K. Han, See W. Ng, Prashanth M. L. Gowda