Dr. Dobb's | Overture Networks lands circuit emulation patents

Overture Networks lands circuit emulation patents

Overture Networks has landed three patents for pseudo-wire circuit emulation technology used in the development of its multi-service access boxes.

August 24, 2004
URL:http://www.drdobbs.com/overture-networks-lands-circuit-emulatio/30000035

RESEARCH TRIANGLE PARK, N.C. — Overture Networks has landed three patents for pseudo-wire circuit emulation technology used in the development of its multi-service access boxes.

Two of the patents describe processes that Overture uses in its ISG line of products to automatically size the jitter buffer by measuring the dynamic characteristics of a network, thereby minimizing the time it takes for packets to cross the network. By automatically sizing the buffer, Overture said that carriers are assured of never adding more delay than necessary, even in the face of network impairments such as packet loss.

The third patent covers a method that can be used by carriers to make tradeoffs between circuit-emulation parameters. The parameters include network bandwidth, packet rate and capture delay (the time that it takes to build a packet). By manipulating these parameters service providers can optimize their circuit emulation applications.