Information returned to the originator indicating that a given unit of information has been delivered to the intended addressee(s).

A set of physical transport/access networks.

A device implementing the Delivery Network Gateway Function. The DNG may also be termed the RG (Residential Gateway) in other standards bodies.

An effect--lasting from several minutes to several hours--that causes electromagnetic sky wave signals to disappear rapidly as a result of greatly increased ionization in the ionosphere caused by increased noise from solar storms. Synonyms: Dellinger fadeout, Dellinger fading. [From Weik '89]

Synonym Dellinger effect.

Synonym Dellinger effect.

In digital television technology, a video frame created from the preceding key frame by modifying only those pixels that have changed.
Note: The use of delta frames reduces (a) the data rate required to transmit a given number of video frames per second (frame rate), or (b) the storage capacity required to store multiple video frames. Synonym difference frame.

Analog-to-digital signal conversion in which (a) the analog signal is approximated with a series of segments, (b) each segment of the approximated signal is compared to the original analog wave to determine the increase or decrease in relative amplitude, (c) the decision process for establishing the state of successive bits is determined by this comparison, and (d) only the change… (Read More →)

Delta modulation in which the integral of the input signal is encoded rather than the signal itself.
Note: Delta-sigma modulation may be achieved by preceding a conventional delta-modulation encoder with an integrating network.

Synonym degaussing.