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Strategies & Market Trends : Three Amigos Stock Thread -- Ignore unavailable to you. Want to Upgrade?

To: Ken W who wrote (28332)	3/25/2002 2:46:06 PM
From: arnold silver	Read Replies (1) \| Respond to of 29382

Ok Ken, what does this mean? ASIC SIGNAL PROCESSING DSP isn't the only way to skin the cat, as regards signal processing in the new network. NMS Communications (Framingham, MA - 508-271-1000, www.nmss.com) talked to us, recently, about their e256 echo-cancellation ASIC, technology developed and acquired from Lucent - the product of years of subtle development in unspooling programmatic DSP algorithms and vitrifying them on-chip, achieving factor-of-ten improvements in throughput, as well as serious power savings. The e256 supports 256 channels of echo cancellation at 64 ms "tail length" (the time-window through which signal is observed and echos removed); 128 channels at 128 ms. Though it's a rule-of-thumb that latency becomes audible beyond about 64 ms, the longer tail length is supported for the sake of (hopefully latency-tolerant) applications running across complex, heterogeneous networks (read: Internet), that require a longer time-window for good voice quality. The e256 ASIC does this in a very small (15 x 15 mm) form factor, and draws less than 0.7 watts (typical). It interfaces directly with Texas Instruments C5000 and C6000 families of DSPs, and uses a standard 16-bit microprocessor interface compatible with Motorola and Intel processors. Arnie