Patents by Inventor Yeou H. Hwang

Yeou H. Hwang 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: 5781857
    Abstract: A user, after accessing (41) the communication system (10), selects (42) a paged email service option. In response, the communication system (10) dispatches (43) a service logic block to a service node proxy (110) of an email system (101-105). The service logic block is deposited (44) in a site-specific service logic block repository (112) of the email system (101-105). An email monitor is established (45) for the email system (101-105). Once established, the email system sends (46) an acknowledgment to the communication system (10). The user is then notified (47) of receipt of the acknowledgment.
    Type: Grant
    Filed: June 28, 1996
    Date of Patent: July 14, 1998
    Assignee: Motorola, Inc.
    Inventors: Yeou H. Hwang, Jonathan R. Engelsma
  • Patent number: 5195086
    Abstract: A method for use in a multimedia conferencing arrangement to control multiple concurrent calls where each call comprises one or more channels. A first call among a first set of user stations and a second call among a second set of user stations are merged into a single call comprising a plurality of channels among at least three user stations from the first and second sets. The plurality of channels of the single, merged call corresponds to a combination of channels of the first and second calls and may include a signalling channel, a voice channel, and one data channel for each data channel of the first and second calls. The method is also applicable to calls including image or video channels.
    Type: Grant
    Filed: April 12, 1990
    Date of Patent: March 16, 1993
    Assignee: AT&T Bell Laboratories
    Inventors: Thomas J. Baumgartner, Yeou H. Hwang, Edith H. Jones, Wu-Hon F. Leung, Lara F. Morgan, Shi-Chuan Tu