Receiver for terrestrial am and satellite fm-tv broadcasting signals

Claim 1

A receiver for terrestrial AM-HF-TV signals and satellite FM-HF-TV signals in a first frequency range and a second frequency range, respectively, which succeed each other in frequency, said first and second frequency ranges having substantially the same frequency width, said receiver comprising a HF-AM/FM section having an input for receiving said AM-HF-TV signals and said FM-HF-TV signals and an output for providing selected portions thereof; a mixing circuit common for the AM-HF-TV and FM-HF-TV signals coupled to the output of said HF-AM/FM section; and an IF device coupled to an output of said mixing circuit, said receiver further comprising a tunning oscillator for applying oscillator mixing signals to the mixing circuit for a frequency conversion of the AM-HF-TV signals into a first AM intermediate frequency signal and a frequency conversion of the FM-HF-TV signals into an FM intermediate frequency signal, said first AM intermediate frequency signal and said FM intermediate frequency signal having, respectively, a first AM intermediate frequency and an FM intermediate frequency, of which at least the first AM intermediate frequency is located above the first frequency range; characterized in that said IF device comprises an AM-IF section and an FM-IF section, inputs of which are coupled to an output of the mixing circuit for a separate selection and processing of the first AM and the FM intermediate frequency signals, respectively, and wherein the first AM intermediate frequency is of the order of magnitude of twice the highest frequency of the first frequency range band and the FM intermediate frequency is of the order of magnitude of one-half the lowest frequency of the second frequency range, whereby the tuning oscillator has a tuning range of less than one octave.