Patents by Inventor Charles S. T. Williams

Charles S. T. Williams 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).

  • Integrated PCM level control and conversion using a lookup table
    Patent number: 5243342
    Abstract: A method and apparatus for converting a signal by reading a first signal that is represented in a first format. The first signal is used as an index into a lookup table, the first table containing entries representing signals in a second format modified by a gain. The first table outputs a second signal responsive to the index provided by the first signal, wherein the second signal is represented in a second format.
    Type: Grant
    Filed: July 22, 1992
    Date of Patent: September 7, 1993
    Assignee: Stratacom, Inc.
    Inventors: Shrikanth S. Kattemalalavadi, Charles S. T. Williams
  • Method and apparatus for packet communications signaling
    Patent number: 5115431
    Abstract: A packet format for accurately transporting signaling information in a packet network is described. The packet format comprises a burst count, a sequence number, a burst time, and a signaling status bit. The burst count is for indicating a burst to which the packet belongs. The sequence number is for identifying a first packet of the burst. The burst time is for selectably indicating (1) a time delay from onset to a packet node bus for the first packet of the burst and (2) a time interval between successive signaling bit transitions.
    Type: Grant
    Filed: September 28, 1990
    Date of Patent: May 19, 1992
    Assignee: Stratacom, Inc.
    Inventors: Charles S. T. Williams, Shrikanth S. Kattemalalavadi