Abstract: In a television receiving section for receiving an analog television signal converted to an intermediate frequency by a mixer (3) and subsequently selected in an intermediate frequency filter (6) which is followed by an A/D converter (7), the intermediate frequency is an integral multiple of the sample clock frequency of the A/D converter (7) for the purpose of simultaneous demodulation of the television signal.

Abstract: A process for increasing the resolution of color television solid state cameras provided with three semiconductor image sensors, each assembled of an array of optoelectric elements, includes: geometrically offsetting the sensors in horizontal direction by one third of the distance between the optoelective elements; phase-shifting scanning signals applied to respective sensors by 120.degree.; generating standard signals for luminance and chrominance and matrixing an additional luminance signal; low-pass filtering the standard signals and high-pass filtering the additional luminance signal; and adding the filtered standard and additional luminance signals to produce a resultant luminance signal of higher resolution. A control signal is derived from the high-pass filtered additional luminance signal and is used for controlling amplitudes of the color-difference signals.