Until recently, audio systems have largely been analog. Now the trend is moving rapidly to digital implementations. While the literature contains most of the information needed to design and implement ...

CASCADE TOWNSHIP -- Distribution and sales of a gravity-powered water filter are poised for a rebirth with the sale of the product rights from a charitable organization in financial distress to two ...

CASCADE TOWNSHIP -- Plastic pellets, heated to 450 degrees, shot into a 1,760-ton press. After cooling for a minute, out dropped a bucket. A plastic filter made at Cascade Engineering Inc. may be just ...

Switched-capacitor filters that are preset for a given bandwidth sometimes do not deliver the bandwidth or Q an application requires. By inverting the clock between two switched-capacitor bandpass ...