Patents by Inventor Don Welch

Don Welch 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).

  • Measuring latency in a video conference system
    Publication number: 20090058986
    Abstract: A method of measuring video latency between a sender and a receiver in a video conference system is disclosed. In an embodiment, the method includes initiating an electrical signal from a first location in a video conference system, transmitting the electrical signal through the video components of the video conference system, reflecting the electrical signal back through the video components of the video conference system and measuring the latency of the electrical signal at the first location related to the transmission and reflection of the electrical signal.
    Type: Application
    Filed: August 31, 2007
    Publication date: March 5, 2009
    Inventors: Ted Beers, Jon A. Brewster, Don Welch, Timothy S. Hubley
  • Toe guard for roller skates
    Patent number: 4314707
    Abstract: An abrasion resistant covering for the toe portion of the shoe of a shoe-type roller skate, secured to the skate toe stop, with non-turning assembly, and securable to the laces of the shoe.
    Type: Grant
    Filed: February 25, 1980
    Date of Patent: February 9, 1982
    Inventor: Don Welch