for compensating for attenuation of high frequency components, e.g. crispening, aperture distortion correction

Full Title

Details of television systems (scanning details or combination thereof with generation of supply voltages H04N3/00) > Picture signal circuitry for video frequency region (cameras or camera modules comprising electronic image sensors, or control thereof H04N23/00) > Circuitry for controlling amplitude response > for correcting amplitude versus frequency characteristic > for compensating for attenuation of high frequency components, e.g. crispening, aperture distortion correction