Automatic gain control
AssigneeNordic Semiconductor ASA
InventorsJani Ståhlberg, Timo Sillanpää
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Abstract
A method of operating a radio receiver device comprises receiving a plurality of signals with a plurality of corresponding frequencies; applying respective gains to each of the plurality of signals; and storing the gain applied to each signal and its corresponding frequency. The method comprises subsequently receiving a further signal with a further frequency; and applying a further gain to the further signal. The further gain is determined using at least one of the stored gains according to a difference between the further frequency and at least one of the plurality of corresponding frequencies.
Claims16
A method of operating a radio receiver device comprising:
- receiving a plurality of signals with a plurality of corresponding frequencies;
- applying respective gains to each of the plurality of signals;
- and
- storing the gain applied to each signal and its corresponding frequency;
- wherein the method comprises subsequently:
- receiving a further signal with a further frequency;
- and
- applying a further gain to the further signal;
- wherein the further gain is determined using at least one of the stored gains according to a difference between the further frequency and at least one of the plurality of corresponding frequencies;
- wherein the method comprises assigning each previously-applied gain a distance metric based upon its difference in both frequency and time from the further signal.
A radio transceiver device comprising:
- an antenna;
- an amplifier module;
- and
- a memory;
- wherein the device is configured to:
- receive a plurality of signals with a plurality of corresponding frequencies;
- apply respective gains to each of the plurality of signals using the amplifier;
- and
- store each gain and its corresponding frequency in the memory;
- wherein the device is configured to receive subsequently a further signal with a further frequency and to apply a further gain to said further signal using the amplifier;
- wherein the further gain is determined using at least one of the stored gains according to a difference between the further frequency and the plurality of corresponding frequencies;
- and
- wherein the device is configured to assign each previously-applied gain a distance metric based upon its difference in both frequency and time from the further signal.
Dependencies are inferred from the claim text.