Method for shifting the frequency of signals

Details Method for shifting the frequency of signals Method for shifting the frequency of signals

H - Electricity

03

G

H03G 5/00 (2006.01) H03G 7/00 (2006.01) H04R 25/00 (2006.01)

Patent

CA 2082189

ABSTRACT: Method and device for transposing the frequency of an input signal, in particular for hearing aids, comprising: - an analytical circuit (AS) with which are produceable a momentary frequency signal w(t) whose strength is proportional to the momentary frequency of the input signal ui(t) and a momentary amplitude signal A(t) whose strength is proportional to the momentary amplitude of the input signal ui(t); - a voltage-controlled oscillator (VCO) which is connected to the output of the analytical circuit (AS) that supplies the frequency signal w(t); - a multiplier (M) with two inputs, of which one of them is connected to the output of the voltage-controlled oscillator (VCO) and the other to the output of the analytical circuit (AS) supplying the amplitude signal A(t). Fig. 4

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