APPARATUS FOR ELECTRONIC PROCESSING OF TELEVISION SIGNALS Russian patent published in 2014 - IPC H04N7/18 

FIELD: radio engineering, communication.

SUBSTANCE: invention can be used in radio systems for various purposes. The result is achieved due to that the apparatus comprises a first integrator, a subtractor unit, an instantaneous automatic gain control unit, a first comparator, a first switching unit, a second switching unit, a second integrator, a third switching unit, a first compensation voltage generating unit, a first reference voltage generating unit, a second compensation voltage generating unit, a second reference voltage generating unit, a second comparator, a third integrator, a third compensation voltage generating unit, a fourth switching unit, connected to each other in a certain manner.

EFFECT: improved recognition of low-contrast objects at background levels while maintaining half-tones of the objects.

7 dwg