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US 6,912,381 B2Granted
Processing received signals
AssigneeNokia Corporation
InventorSimo Murtojarvi
Life of this patent
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Abstract
A method and circuitry for a receiver are disclosed. In the method a signal is received in a signal processing path of the receiver. Direct voltage that is present in the received signal is reduced by compensation means (12). The amplitude of the signal is attenuated by frequency selective attenuation means (10) during the direct voltage reduction by the compensation means (12).
Claims31
A method in a receiver, comprising:
- receiving a signal in a signal path of the receiver;
- initiating reduction of direct voltage present in the signal;
- and
- attenuating the amplitude of the signal by frequency selective attenuation means during the direct voltage reduction.
1 more element
Circuitry for a receiver, comprising:
- a signal path for processing a received signal;
- direct voltage compensation means for reduction of direct voltage present in the received signal;
- and
- frequency selective attenuation means adapted to attenuate the amplitude of the signal on the signal path during reduction of direct voltage by said compensation means, wherein said attenuation means are located after said selection means and before said compensation means on said signal path.
1 more element
A receiver comprising circuitry that comprises:
- a signal path for processing a received signal;
- direct voltage compensation means for reduction of direct voltage present in the received signal;
- and
- frequency selective attenuation means adapted to attenuate the amplitude of the signal on the signal path during reduction of direct voltage by said compensation means, wherein said attenuation means are located after said selection means and before said compensation means on said signal path.
1 more element
Dependencies are inferred from the claim text.