Method and system for gain control in a communications device
AssigneeNXP B.V.
InventorsSteve Charpentier, Stefan Mendel, Ulrich Andreas Muehlmann, Helmut Kranabenter
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Abstract
Embodiments of methods and systems for gain control in a communications device are described. In an embodiment, a method for gain control in a communications device involves detecting a change in an amplification gain that is applied to an analog signal in the communications device and compensating for the change in the amplification gain by manipulating an amplitude of a digital signal that is converted from the analog signal. Other embodiments are also described.
Claims9
A method for gain control in a communications device, the method comprising:
- detecting a change in an amplification gain that is applied to an analog signal in the communications device;
- and
- compensating for the change in the amplification gain by manipulating an amplitude of a digital signal that is converted from the analog signal, wherein compensating for the change in the amplification gain by manipulating the amplitude of the digital signal that is converted from the analog signal comprises:
- freezing the amplitude of the digital signal during a time window in which the change in the amplification gain affects the amplitude of the digital signal;
- measuring a gap in the amplitude of the digital signal during the time window that is caused by the change in the amplification gain;
- and
- removing the gap in the amplitude of the digital signal during the time window.
A communications device, the communications device comprising:
- a gain compensation timing unit configured to detect a change in an amplification gain that is applied to an analog signal in the communications device;
- and
- a signal amplitude control unit configured to compensate for the change in the amplification gain by manipulating an amplitude of a digital signal that is converted from the analog signal, wherein the signal amplitude control unit is further configured to:
- freeze the amplitude of the digital signal during a time window in which the change in the amplification gain affects the amplitude of the digital signal;
- measure a gap in the amplitude of the digital signal during the time window that is caused by the change in the amplification gain;
- and
- remove the gap in the amplitude of the digital signal during the time window.
Dependencies are inferred from the claim text.