DEVICE AND METHOD FOR DETECTING THE ORIENTATION OF AN ELECTRONIC APPARATUS
First Claim
1. An orientation detection device comprising:
- an inertial device having a plurality of independent detection axes and configured to provide inertial signals indicative of effects of gravity with respect to the detection axes, respectively; and
a processing unit configured to process the inertial signals wherein the processing unit comprises an interrupt generator module having;
a threshold comparison stage, configured to compare the inertial signals with respective thresholds; and
a logic module having an input, coupled to the threshold comparison stage, and an output, the logic module configured to generate an interrupt signal on the output in response to at least one of the inertial signals remaining below the respective threshold for a time interval.
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Abstract
A device for detecting orientation includes: an inertial device, having a plurality of independent detection axes and configured to supply inertial signals indicating effects of the force of gravity according to respective detection axes; and a processing unit for configured to process the inertial signals. The processing unit includes an interrupt-generator module having a threshold-comparison stage, for configured to compare the inertial signals with respective thresholds, and a logic module, coupled to the threshold-comparison stage and configured to generate an interrupt signal on an interrupt terminal accessible from outside in response to the permanence of at least one of the inertial signals below the respective threshold for a time interval.
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Citations
16 Claims
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1. An orientation detection device comprising:
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an inertial device having a plurality of independent detection axes and configured to provide inertial signals indicative of effects of gravity with respect to the detection axes, respectively; and a processing unit configured to process the inertial signals wherein the processing unit comprises an interrupt generator module having; a threshold comparison stage, configured to compare the inertial signals with respective thresholds; and a logic module having an input, coupled to the threshold comparison stage, and an output, the logic module configured to generate an interrupt signal on the output in response to at least one of the inertial signals remaining below the respective threshold for a time interval. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A system comprising:
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a control unit; and an orientation detection device coupled to the control unit, the orientation detection device comprising; an inertial device having a plurality of independent detection axes and configured to provide inertial signals indicative of effects of gravity with respect to the detection axes, respectively; and a processing unit configured to process the inertial signals wherein the processing unit comprises an interrupt generator module having; a threshold comparison stage configured to compare the inertial signals with respective thresholds; and a logic module having an input, coupled to the threshold comparison stage, and an output, the logic module configured to generate an interrupt signal on the output in response to at least one of the inertial signals remaining below the respective threshold for a time interval. - View Dependent Claims (11, 12, 13)
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14. A method, comprising:
detecting orientation of an electronic apparatus, the detecting including; detecting inertial signals indicative of effects of gravity according to respective detection axes of the inertial device; and processing the inertial signals, the processing including; comparing the inertial signals with respective thresholds; and sending an interrupt signal to the control unit in response to at least one of the inertial signals remaining below the respective threshold for a time interval. - View Dependent Claims (15, 16)
Specification