Patent ID: 6125269
Filing Date: 2000-09-26
Classification: H03J,H04B,H04N

Abstract:
A receiver for receiving reception signals of a first type and reception signals of a second type, the receiver comprising:an input section for providing, in response to a reception signal, a mixer input signal, said input section comprising a band-pass filter tunable in a frequency band in which reception signals of both said first and second types are present, said band-pass filter comprising a tunable first resonant circuit, a tunable second resonant circuit, and means for switching a coupling between the first and second resonant circuits, whereby said band-pass filter is switchable for filtering said reception signals of the first type and said reception signals of the second type differently;a mixer for providing, in response to the mixer input signal, an intermediate frequency signal;a first intermediate frequency signal processing arrangement coupled to said mixer for processing said intermediate frequency signal when said reception signals are of said first type; anda second intermediate frequency signal processing arrangement coupled to said mixer for processing said intermediate frequency signal when said reception signals are of said second type,characterized in that the coupling between the first and second resonant circuits is switchable between an under-critical state and an over-critical state.