Methods and apparatus to implement receiver linearity enhancement
AssigneeTexas Instruments Incorporated
InventorsKhurram Muhammad, Chandana Fernando
Life of this patent
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Abstract
Methods and apparatus to implement receiver linearity enhancement are described. One example method includes controlling receiver gain by determining a level of a received signal that is to be provided to a radio frequency component; determining if the level of the received signal would cause the radio frequency components internally generated noise to increase; and when the level of the received signal would cause the radio frequency components internally generated noise to increase, reducing the level of the received signal prior to providing the received signal to the radio frequency component.
Claims25
A method of controlling receiver gain, the method comprising:
- determining a level of a received signal that is to be provided to a radio frequency component;
- determining if the level of the received signal would cause the radio frequency components internally-generated noise to increase;
- and
- when the level of the received signal would cause the radio frequency components internally generated noise to increase, reducing the level of the received signal prior to providing the received signal to the radio frequency component.
A system of controlling receiver gain, the system comprising:
- a detector to determine a level of a received signal that is to be provided to a radio frequency component;
- a comparator to determine if the level of the received signal would cause the radio frequency components internally generated noise to increase;
- and
- a controller that when the level of the received signal would cause the radio frequency components internally generated noise to increase, reduces the level of the received signal prior to providing the received signal to the radio frequency component.
An article of manufacture comprising a computer-accessible medium having a plurality of computer accessible instructions that, when executed, cause a computer to:
- determine a level of a received signal that is to be provided to a radio frequency component;
- determine if the level of the received signal would cause the radio frequency components internally generated noise to increase;
- and
- when the level of the received signal would cause the radio frequency components internally generated noise to increase, reduce the level of the received signal prior to providing the received signal to the radio frequency component.
A method of controlling receiver operation, the method comprising:
- reading a first output from a first detector in a first region of the receiver;
- reading a second output from a second detector in a second region of the receiver;
- comparing the first output to a first threshold and comparing the second output to a second threshold;
- and
- varying filtering of the receiver based upon the results of the comparisons.
A receiver system comprising:
- a first detector in a first region of the receiver, the first detector to produce a first output signal;
- a second detector in a second region of the receiver, the second detector to produce a second output signal;
- a comparator to compare the first output to a first threshold and to compare the second output to a second threshold;
- and
- a controller to vary filtering of the receiver based upon the results of the comparisons.
A receiver system comprising:
- a first detector in a first region of the receiver, the first detector to produce a first output signal;
- a second detector in a second region of the receiver, the second detector to produce a second output signal;
- a third detector to produce a third output signal;
- a comparator to compare the first output to a first threshold, to compare the second output to a second threshold, and to compare the third output to a third threshold;
- and
- a controller to vary receiver gain based upon the results of the comparisons.
Dependencies are inferred from the claim text.