Patents Assigned to Telchemy, Incorporated
  • System for monitoring the performance of flows carried over networks with dynamic topology
    Publication number: 20150334009
    Abstract: A method and system for monitoring the performance of end to end flows traversing a network with rapidly changing topology and with address translation and encapsulation. Multiple probes are deployed within the network and a dynamic mapping method used to enable probes to associate local address information with end to end flow identifiers.
    Type: Application
    Filed: May 19, 2014
    Publication date: November 19, 2015
    Applicant: Telchemy, Incorporated
    Inventors: Alan Douglas Clark, Shane Holthaus
  • Dynamic quality of service monitor
    Patent number: 7075981
    Abstract: A subjective quality monitoring system for multimedia signal transmission systems or distributed applications software systems employs a counter which is increased if subjective quality is high and decreased if subjective quality is low in order to represent the effects of the relative temporal location of transmission impairments or system loading.
    Type: Grant
    Filed: May 19, 2000
    Date of Patent: July 11, 2006
    Assignee: Telchemy, Incorporated
    Inventor: Alan Douglas Clark
  • Quality of service monitor for multimedia communications system
    Patent number: 6741569
    Abstract: A subjective quality monitoring system for packet based multimedia signal transmission systems estimates the parameters of a statistical model representing the probabilities of said packet based transmission system being in a low loss state or a high loss state and uses said estimates to predict the subjective quality of the multimedia signal. The quality monitoring system comprises a plurality of quality monitoring functions located at the multimedia to packet conversion points.
    Type: Grant
    Filed: April 18, 2000
    Date of Patent: May 25, 2004
    Assignee: Telchemy, Incorporated
    Inventor: Alan Douglas Clark