Measurement device with confidence indicator
AssigneeAnalog Devices International Unlimited Company
InventorsJonathan Ephraim David Hurwitz, Naiqian Ren, Claire Croke, Christoph Kaemmerer
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Abstract
A first signal processing circuit is configured to process a first digital signal, for example generated by an analog to digital converter (ADC), to generate a second digital signal based on the first digital output signal. A second signal processing circuit is configured to extract an interference signal from the first digital signal and calculate a confidence indicator based on the interference signal. The confidence indicator is characteristic of a reliability of the second digital signal generated by the first signal processing circuit.
Claims20
A data acquisition device comprising:
- a first signal processing circuit for coupling to a digital output of an analog to digital converter, ADC, that is arranged to generate a first digital signal based on an analog input signal, the first signal processing circuit being configured to process the first digital signal to generate a second digital signal based on the first digital signal;
- and
- a second signal processing circuit for coupling to the digital output of the ADC and configured to:
- extract an interference signal from the first digital signal;
- and
- calculate a confidence indicator based on the interference signal, wherein the confidence indicator is characteristic of a reliability of the second digital signal generated by the first signal processing circuit;
- wherein the data acquisition device is configured to output the second digital signal and the confidence indicator.
A method comprising:
- obtaining, by processing circuitry, one or more measurements related to operation of a device during generation of a digital signal by the device, the digital signal being generated based on an input signal;
- generating, by the processing circuitry, at least one confidence indicator based on the one or more measurements, wherein the at least one confidence indicator is indicative of a reliability of the digital signal;
- and
- causing, by the processing circuitry, output of the digital signal and the at least one confidence indicator.
A non-transitory computer readable medium including instructions which, when executed by processing circuitry of an edge device, cause the edge device to:
- obtain one or more measurements related to operation of the edge device during generation, by the edge device, of a digital signal that is dependent on an input signal;
- generate at least one confidence indicator based on the one or more measurements, wherein the at least one confidence indicator quantifies a reliability of the digital signal;
- and
- output the digital signal and the at least one confidence indicator.
Dependencies are inferred from the claim text.