D.C. reinsertion in video amplifier

Data compression

Data transmission facility

Data transmission system

DC level control circuit

Demodulation system with dropout correction

Detector array fixed-pattern noise compensation

Device for locally positioning a flexible rotating disc

Device for reading out information recorded upon a substrate

Device for selective search of objects using images thereof

Device for the elimination of the effect of background radiation

Differential optical polarization detectors

Digital convergence of multiple image projectors

Digital dissolver

Digital memory area correlation tracker

Digital rotary special effects generator

Digital soft edge video transition system

Digital video modulation and demodulation system

Digital video modulation apparatus

Direct current power system including standby for community ante