Patent ID: 7333467

Claim:
A circuit arrangement for a radio-controlled clock, comprising: a reception input adapted to receive a received time signal carrying encoded time information; an amplifier circuit, which is connected to said reception input, is adapted to amplify said received time signal to produce an amplified time signal, and includes at least one adjustable amplifier or amplifier stage having a variable amplification factor that is adapted to be adjusted in response to and dependent on a frequency of said received time signal; an adjustable bandpass filter arrangement, which is adapted to be adjusted in response to and dependent on said frequency of said received time signal, is connected between said amplifier circuit and an output, and is adapted to filter said amplified time signal to produce an filtered amplified time signal at said output; and a control arrangement connected to control inputs of said amplifier circuit and of said adjustable bandpass filter, and adapted to provide to said control inputs respective control signals in response to and dependent on said frequency of said received time signal.