Sensor system and method for operating the sensor system
Assigneeaustriamicrosystems AG
InventorsColin Steele, Siegfried Rossmann, Frank Perske
Life of this patent
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Abstract
A system includes plural sensors to detect at least one of a magnetic field and an electrical field, where each of the plural sensors includes outputs that output sensor signals when a field is detected. Plural signal modulators receive sense signals that correspond to sensor signals from corresponding ones of the plural sensors. Each of the plural signal modulators has first and second control states. In the first control state, each signal modulator outputs sense signals, and, in the second control state, each signal modulator outputs inverted sense signals. A device receives and processes the sense signals or the inverted sense signals.
Claims13
A system comprising:
- a first sensor to detect at least one of a magnetic field and an electrical field, the first sensor comprising first outputs to output first sensor signals when a field is detected;
- a first signal modulator to receive first sense signals that correspond to the first sensor signals from the first sensor, the first signal modulator having first and second control states, wherein in the first control state, the first signal modulator is configured to output the first sense signals, and, wherein in the second control state, the first signal modulator is configured to output inverted first sense signals;
- a device configured to receive and process the first sense signals or the inverted first sense signals;
- a second sensor to detect at least one of a magnetic field and an electrical field, the second sensor comprising second outputs to output second sensor signals when a field is detected;
- and
- a second signal modulator to receive second sense signals that correspond to the second sensor signals from the second sensor, the second signal modulator having the first and second control states, wherein in the first control state, the second signal modulator is configured to output the second sense signals, and, wherein in the second control state, the second signal modulator is configured to output inverted second sense signals;
- wherein the device is configured to receive and process the second sense signals or the inverted second sense signals.
A method of operating a system comprised of:
- plural sensors to detect at least one of a magnetic field and an electrical field, each of the plural sensors comprising outputs to output sensor signals when a field is detected;
- plural signal modulators to receive sense signals that correspond to sensor signals from corresponding ones of the plural sensors, each of the plural signal modulators having first and second control states, wherein in the first control state, each signal modulator is configured to output sense signals, and, wherein in the second control state, each signal modulator is configured to output inverted sense signals;
- and
- a device to receive and process the sense signals or the inverted sense signals, the method comprising:
- reading and storing a first system signal from the device in a case that the system is in a first configuration;
- changing a configuration of the system to a second configuration that is different from the first configuration;
- reading and storing a second system signal from the device when the system is in the second configuration;
- and
- performing an arithmetic operation using the first system signal and the second system signal.
Dependencies are inferred from the claim text.