Encrypted targetable Digital Television datacast

摘要

Digital Television (DTV) datacast has proven [1] to be a low-cost long-term sustained technology to push secure video, voice and data to public safety and emergency responders over a wide area. This paper presents a description of encrypted targetable DTV datacasting (ETDTV) supported by the digital television technology nationwide. It also presents elements of a nationwide ETDTV CONOPS to support local, regional, statewide and national information-sharing needs. The CONOPS addresses ETDTV for all local responders, expanding the number and discipline of users authorized for access as an incident or event grows over time in geographic area and public safety risk. We also describe our ongoing research for ETDTV technology enhancements to optimize data transfer in the diverse broadcast environments encountered nationwide.