System, apparatus and method for reducing audio artifacts in a phase diversity receiver
AssigneeSilicon Laboratories Inc.
InventorAlexander August Arthur Hakkola
Life of this patent
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Abstract
In one embodiment, an apparatus includes: a first radio receiver to receive and downconvert a first radio frequency (RF) signal to a first digital signal; a second radio receiver to receive and downconvert a second RF signal to a second digital signal; a correlation circuit to receive the first and second digital signals and determine a correlation between the first and second digital signals; a weight calculation circuit to determine a first weight value and a second weight value based at least in part on the correlation; and a combiner circuit to combine the first and second digital signals according to the first and second weight values.
Claims20
An apparatus comprising:
- a first radio receiver to receive and downconvert a first radio frequency (RF) signal to a first digital signal;
- a second radio receiver to receive and downconvert a second RF signal to a second digital signal;
- a correlation circuit to receive the first digital signal and the second digital signal and determine a correlation between the first digital signal and the second digital signal;
- a weight calculation circuit to determine a first weight value and a second weight value based at least in part on the correlation;
- and
- a combiner circuit to combine the first digital signal and the second digital signal according to the first weight value and the second weight value.
At least one non-transitory computer readable medium including instructions that when executed enable a system to perform a method comprising:
- receiving and processing a first radio frequency (RF) signal from a first antenna into a processed first signal;
- receiving and processing a second RF signal from a second antenna into a processed second signal;
- determining first signal metric information based on the processed first signal and determining second signal metric information based on the processed second signal;
- determining a correlation between the processed first signal and the processed second signal;
- and
- combining the processed first signal and the processed second signal based on the first signal metric information and the second signal metric information, and adjusting the combining based on the correlation.
An apparatus comprising:
- a first radio receiver to receive and downconvert a first radio frequency (RF) signal from a first antenna to a first digital signal;
- a second radio receiver to receive and downconvert a second RF signal from a second antenna to a second digital signal;
- a phase aligner circuit to phase align the first digital signal and the second digital signal;
- a correlation circuit to receive the first digital signal and the second digital signal and determine a correlation between the first digital signal and the second digital signal;
- a weight calculation circuit to determine a first weight value and a second weight value based at least in part on the correlation;
- and
- a combiner circuit to use the first weight value and the second weight value to combine the first phase aligned digital signal and the second phase aligned digital signal into a combined signal.
Dependencies are inferred from the claim text.