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US 7,405,683 B1Granted
Extending the dynamic range in an energy measurement device
AssigneeCypress Semiconductor Corporation
InventorsJon Keith Perrin, Kevin Summers
Life of this patent
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Abstract
An apparatus for measuring energy usage. The apparatus can include an amplifier having a plurality of gain stages and the amplifier can be for receiving an input signal. The apparatus can also include an analog-to-digital converter that is coupled to the amplifier. Furthermore, the apparatus can include a scaling adjustment module that is coupled to the analog-to-digital converter. Additionally, the apparatus can include a gain control module coupled to the analog-to-digital converter.
Claims20
An apparatus comprising:
- an amplifier for amplifying an input signal and for generating a modified signal based upon said input signal;
- an analog-to-digital converter coupled to said amplifier, said analog-to-digital converter for sampling said modified signal and generating data corresponding to said modified signal;
- a scaling adjustment module coupled to said analog-to-digital converter, said scaling adjustment module for reducing a magnitude of said data and generating modified data;
- and
- a gain control module coupled to said analog-to-digital converter, wherein said apparatus is for measuring energy usage.
2 more elements
A method of measuring energy usage, said method comprising:
- modifying an input signal based on a setting value to generate a modified signal;
- sampling said modified signal and generating data corresponding to said modified signal;
- determining whether to adjust said setting value;
- and
- scaling said data based upon said setting value to generate modified data, wherein said scaling said data comprises reducing a magnitude of said data.
2 more elements
A system comprising:
- means for modifying an input signal based on a setting value to generate a modified signal;
- means for sampling said modified signal and generating data corresponding to said modified signal;
- means for determining whether to adjust said setting value;
- and
- means for scaling said data based upon said setting value to generate modified data, wherein said scaling said data comprises reducing a magnitude of said data.
2 more elements
Dependencies are inferred from the claim text.