Estimation and Removal of Clock Skew From Network Delay Measurements

Primary Inventors: 

Don Towsley, Ph.D., P. Skelly, and S. Moon

Description: 

Invention estimates and removes relative skew in synchronization between sender and receiver clocks that are so critical to the accurate assessment and analysis of network performance. A proprietary algorithm along with a linear programming approach gives a far better network managing and monitoring tool.

Applications: 
  • Internet/intranet monitoring tools
  • Cell phones, video streaming, multicast transmission
  • Can be incorporated in internet software and hardware as resident application
Advantages: 
  • Error margin of the skew is independent of the magnitude of the skew
  • Skew estimates are superior to existing algorithms
  • Highly accurate
Licensing Status: 
Available for Licensing
Patent Status: 

US Patent 6,661,810 Issued

Docket: 
UMA 99-20
For More Information: 

Commercial Ventures and Intellectual Property
Phone: 413-545-3606
E-mail: cvip@research.umass.edu