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US 11,329,664 B2Granted
System and method for signal resampling
AssigneeViavi Solutions Inc.
InventorSean Hamlin
Life of this patent
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Abstract
An instrument configured to process signal data is disclosed. The instrument is operable to control and or change the sampling rate of the signal data from a first sample rate to a second sample rate different than the first sample rate.
Claims16
An instrument comprising:
- a multi-stage filter adapted to receive a first waveform having a first sample rate, the filter comprising a shaping function adapted to re-sample the first waveform into a second waveform having a second sample rate different than the first sample rate;
- and
- a timing controller adapted to control timing of the multi-stage filter using a dual-modulus counter,
- wherein the timing controller comprises a state machine and the dual-modulus counter comprises a Multi-stAge noise Shaping Digital Delta-Sigma Modulator (MASH DDSM) connected to the state machine and receiving signals for controlling the MASH DDSM from the state machine.
1 more element
An instrument comprising:
- a multi-stage filter adapted to receive a first waveform having a first sample rate, the filter comprising a shaping function adapted to re-sample the first waveform into a second waveform having a second sample rate different than the first sample rate;
- and
- a timing controller adapted to control timing of the multi-stage filter using a dual-modulus counter,
- wherein the timing controller is adapted to output valid, address and time residual signals to the multi-stage filter to control timing of the filter output and kernel interpolation.
1 more element
A method of processing a first waveform having a first sample rate, said method comprising:
- applying the first waveform to a multi-stage filter adapted to re-sample the first waveform into a second waveform having a second sample rate different than the first sample rate using a shaping function;
- and
- controlling a timing of the multi-stage filter using a dual-modulus counter.
- wherein the dual-modulus counter comprises a Multi-stAge noise Shaping Digital Delta-Sigma Modulator (MASH DDSM).
1 more element
Dependencies are inferred from the claim text.