Posture estimation at transitions between states
First Claim
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1. An implanted device, comprising:
- a posture sensor configured to produce one or more electrical signals associated with an orientation of the posture sensor relative to a direction of gravity; and
a processor coupled to the posture sensor, the processor being programmed to process the electrical signals from the posture sensor using hysteresis, and to estimate one of a plurality of posture states based on the processed electrical signals.
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Abstract
An implanted device includes a posture sensor configured to produce one or more electrical signals associated with an orientation of the posture sensor relative to a direction of gravity. The device also includes a processor coupled to the posture sensor, the processor being programmed to process the electrical signals from the posture sensor using hysteresis, and to estimate one of a plurality of posture states based on the processed electrical signals.
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Citations
20 Claims
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1. An implanted device, comprising:
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a posture sensor configured to produce one or more electrical signals associated with an orientation of the posture sensor relative to a direction of gravity; and
a processor coupled to the posture sensor, the processor being programmed to process the electrical signals from the posture sensor using hysteresis, and to estimate one of a plurality of posture states based on the processed electrical signals. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An implanted cardiac rhythm management device, comprising:
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a posture sensor configured to produce one or more electrical signals associated with an orientation of the posture sensor relative to a direction of gravity;
a processor coupled to the posture sensor, the processor being programmed to process the electrical signals from the posture sensor using hysteresis, and to estimate one of a plurality of posture states based on the processed electrical signals; and
a transceiver module programmed to transmit the estimate of the one posture state to an external device. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A method for estimating posture using an implanted device, the method comprising:
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generating one or more signals indicative of an orientation of the device relative to a direction of gravity;
processing the signals by defining a transition band about a transition line between posture states of a plurality of posture states; and
estimating one of the plurality of posture states based on the processed signals. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification