Digital Application Software Environment (DASE) A standard by ATSC addressing interactive television. Digital Audio Visual Council (DAVIC) DAVIC is an international consortium working on the development of standards for interactive television. Digital Certificate A binding between an entity's public key and one or more attributes relating to its identity, also known as a public key certificate. Digital Compression An engineering technique for converting a cable TV signal into a digital format which may then be processed in a manner that requires a smaller portion of spectrum for its transmission. This compressed format allows many channels to be carried in the bandwidth normally required for one signal. This format can also be easily stored and manipulated. Digital Enhanced Cordless Telecommunications (DECT) A European standard governing panEuropean digital mobile telephony. Specified in DVB MHP as a type of return channel network interface for use in receiving and transmitting IP packets. Digital Facility A switching or transmission facility designed specifically to handle digital signals. Digital Program Insertion (DPI) The digital splicing of one Moving Pictures Experts Group (MPEG) program (typically a commercial) into another based on digital 'cues' within the MPEG transport stream. Digital QAM In digital QAM, the input stream is divided into groups of bits based on the number of modulation states used. For example, in 8QAM, each three bits of input, which provides eight values (0-7) alters the phase and amplitude of the carrier to derive eight unique modulation states. In 64QAM, each six bits generates 64 modulation states; in 128QAM, each seven bits generates 128 states, and so on. See modulation. Digital Receiver Interface (DRI) A CableLabs-specified interface over Internet Protocol (IP) that protects cable operators' "harm-to-service" issues. These issues include ensuring that information like emergency alerts and set-up screens are displayed, that there is sufficient bandwidth to deliver the service, that the content is not altered, etc. It also provides commands to enable communication of information between an OpenCable™ unidirectional receiver (OCUR) and a home media server (HMS).
Digital Application Software Environment (DASE) A standard by ATSC addressing interactive television. Digital Audio Visual Council (DAVIC) DAVIC is an international consortium working on the development of standards for interactive television. Digital Certificate A binding between an entity's public key and one or more attributes relating to its identity, also known as a public key certificate. Digital Compression An engineering technique for converting a cable TV signal into a digital format which may then be processed in a manner that requires a smaller portion of spectrum for its transmission. This compressed format allows many channels to be carried in the bandwidth normally required for one signal. This format can also be easily stored and manipulated. Digital Enhanced Cordless Telecommunications (DECT) A European standard governing panEuropean digital mobile telephony. Specified in DVB MHP as a type of return channel network interface for use in receiving and transmitting IP packets. Digital Facility A switching or transmission facility designed specifically to handle digital signals. Digital Program Insertion (DPI) The digital splicing of one Moving Pictures Experts Group (MPEG) program (typically a commercial) into another based on digital 'cues' within the MPEG transport stream. Digital QAM In digital QAM, the input stream is divided into groups of bits based on the number of modulation states used. For example, in 8QAM, each three bits of input, which provides eight values (0-7) alters the phase and amplitude of the carrier to derive eight unique modulation states. In 64QAM, each six bits generates 64 modulation states; in 128QAM, each seven bits generates 128 states, and so on. See modulation. Digital Receiver Interface (DRI) A CableLabs-specified interface over Internet Protocol (IP) that protects cable operators' "harm-to-service" issues. These issues include ensuring that information like emergency alerts and set-up screens are displayed, that there is sufficient bandwidth to deliver the service, that the content is not altered, etc. It also provides commands to enable communication of information between an OpenCable™ unidirectional receiver (OCUR) and a home media server (HMS).
gloss2.docx