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AssigneeTelefonaktiebolaget L M Ericsson (publ)
InventorsDerek Hagen, Vimar Bjork, Claes Rolen, Torbjorn Gunnar Widhe
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A receiver circuit comprising first and second receivers for demodulating first and second parts, respectively, of a received signal. The receiver circuit also comprises an adjustment circuit for adjusting the demodulated signal from the first receiver. The output signal from the adjustment circuit is used as output signal from the receiver circuit which also comprises an adjustment value circuit for determining an adjustment value for the adjustment circuit in adjusting the output signal from the first receiver. The adjustment value circuit receives the demodulated signal from the second receiver and the output signal from the adjustment circuit and uses differences between these input signals for forming said adjustment value. The first receiver and the second receiver have different transfer functions within one and the same frequency range.
A receiver circuit comprising a first and a second receiver which are arranged to receive and demodulate a first and a second part, respectively, of a received signal, the receiver circuit also comprising an adjustment circuit for adjusting the demodulated output signal from the first receiver, the output signal from the adjustment circuit being used as an output signal from the receiver circuit, the receiver circuit also comprising an adjustment value circuit for determining an adjustment value (Δ) for use by the adjustment circuit in adjusting the output signal from the first receiver, the adjustment value circuit being arranged to receive as input signals the demodulated signal from the second receiver and the output signal from the adjustment circuit, and to use differences between these input signals for forming said adjustment value (Δ), wherein the first receiver and the second receiver have different transfer functions within one and the same frequency range.
A method for use in a receiver circuit, the method comprising splitting a received signal into a first and a second part and demodulating the first and second parts in separate first and second receivers, the method comprising adjusting the demodulated first part and using the adjusted demodulated second part as the output signal from the receiver circuit, the method comprising determining an adjustment value (Δ) by forming a difference value between the output signal of the receiver circuit and the demodulated first part, wherein the first and second receiver are chosen to have different transfer functions within one and the same frequency range.
Dependencies are inferred from the claim text.