4 Terms
Contributors in Video
Video
Equivalent input noise
Entertainment; Video
Noise created by the input stage of an amplifier which appears in the output of the amplifier increased in level by the gain of the amp.
Erase adj.
Entertainment; Video
A control which adjusts the coupling of the bias oscillator to the erase head in a manner which purifies the oscillator’s waveform.
Erase field strength
Entertainment; Video
The minimum initial amplitude of a decreasing alternating field (normally applied in the longitudinal direction) required to reduce the output of a given recorded signal by a specified amount.
Erased noise
Entertainment; Video
The noise arising when reproducing a bulk-erased tape with the erase and record heads completely de-energized.
Entitlement control message (ECM)
Entertainment; Video
Conditional access information specifying control words or other stream-specific scrambling parameters.
Entitlement management message (EMM)
Entertainment; Video
Conditional access information specifying authorization level or services of specific decoders. An individual decoder or a group of decoders may be addressed.
