Dotcast technology allows cable companies to insert a high-speed digital data stream inside an analog TV signal. Both are then simulcast, without the need for additional bandwidth, thereby increasing the capacity of a capacity-constrained system. Signals are received using low cost, all-digital set-top boxes that are significantly less expensive than current digital/analog hybrid set-tops. The inserted digital data is completely invisible on a consumer television set, with no disruption to either the analog or the digital service. TVs without a set-top box receive the analog signal as usual.

Our patented dNTSC® technology allows us to place digital data at rates of up to 3.9 Mbps inside each analog channel. Each analog channel therefore could carry its own parallel digital program or other digital content. This allows the cable provider to add up to 80 digital channels, without adding additional bandwidth. It’s a unique, cost-effective way to increase system capacity and increase bandwidth.