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US 2023/0056713 A1Published application
Dynamically optimized radio receiver
OwnerSam Belkininventor
Life of this patent
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Abstract
A radio frequency receiver with adaptive dynamic filtering controlled by signals from subsequent or external circuit elements, as required to suppress undesired radio frequency energy, match the radio's input circuit to the received signal, and permit optimized processing of the signal of interest.
Claims15
A radio receiver circuit that dynamically adapts to a selected incoming radio frequency (RF) signal by matching receiver input bandwidth with received signal spectrum, and automatically suppressing spectra other than said signal of interest, comprising:
- an input port for receiving the applied RF signal;
- at least one initial RF mixer connected to said input port, configured to convert the signal to a new point in the spectrum at which dynamic filtering is optimal;
- a controllable local oscillator (LO) signal that controls the parameters of said at least one initial RF mixer;
- at least one RF filter connected to the output of said initial mixer, configured to suppress signals other than the signal of interest;
- at least one secondary mixer to receive the output of said RF filter and convert it to a new desired point in the spectrum;
- a controllable local oscillator (LO) signal that controls the parameters of said secondary RF mixer;
- and
- an output port from which the filtered signal of interest generated by said secondary RF mixer is applied to subsequent circuitry of the receiver.
5 more elements
A radio frequency receiver circuit to equalize and mitigate group delay, wherein:
- the signal path includes at least one dynamically tunable synthesized filter using at least two linear mixers;
- and
- a group delay equalizer circuit is positioned between said two linear mixers.
Dependencies are inferred from the claim text.