Power management for medical sensing devices employing multiple sensor signal feature detection
First Claim
1. An electronic biosensor, comprising:
- a housing configured for hand-held manipulation by a clinician relative to a patient;
a transducer supported by the housing and configured to sense a manifestation of acoustic energy produced by matter of biological origin;
an output device configured to output a signal comprising signal information produced by the transducer;
a processor disposed in the housing;
a sensor; and
power management circuitry disposed in the housing and coupled to the processor and the sensor, the power management circuitry comprising detection circuitry configured to detect a plurality of features of a signal produced by the sensor, the plurality of features including at least one parameter of the clinician, the power management circuitry implementing conditional power management logic by which the power management circuitry discriminates between intended use and unintended use of the biosensor by the clinician, wherein the sensor is configured to sense a parameter indicative of sensor contact or proximity between the housing and a hand or fingers of the clinician, wherein the sensor is configured to sense at least one of temperature, capacitance, impedance, pressure, force and acceleration, the power management circuitry and the processor cooperating to control power supplied to biosensor components based on the plurality of sensor signal features.
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Accused Products
Abstract
Power management circuitry of a portable electronic biosensor implements conditional power management logic to control biosensor power usage and to discriminate between intended use and nonuse of the biosensor by a clinician. The biosensor is configured to sense a property of the human body, such as a manifestation of acoustic energy produced by matter of biological origin or an action potential of the human body. An output signal is produced that is representative of the sensed property. A sensor of the biosensor produces a signal having a plurality of sensor signal features that are received by a detector of the power management circuitry. The power management circuitry or a processor of the biosensor discriminates between intended use and nonuse of the biosensor by the clinician using the sensor signal features. Power supplied to biosensor components is controlled based on the sensor signal features.
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Citations
40 Claims
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1. An electronic biosensor, comprising:
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a housing configured for hand-held manipulation by a clinician relative to a patient; a transducer supported by the housing and configured to sense a manifestation of acoustic energy produced by matter of biological origin; an output device configured to output a signal comprising signal information produced by the transducer; a processor disposed in the housing; a sensor; and power management circuitry disposed in the housing and coupled to the processor and the sensor, the power management circuitry comprising detection circuitry configured to detect a plurality of features of a signal produced by the sensor, the plurality of features including at least one parameter of the clinician, the power management circuitry implementing conditional power management logic by which the power management circuitry discriminates between intended use and unintended use of the biosensor by the clinician, wherein the sensor is configured to sense a parameter indicative of sensor contact or proximity between the housing and a hand or fingers of the clinician, wherein the sensor is configured to sense at least one of temperature, capacitance, impedance, pressure, force and acceleration, the power management circuitry and the processor cooperating to control power supplied to biosensor components based on the plurality of sensor signal features. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 38)
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23. A method of managing power in an electronic biosensor configured for hand-held manipulation by a clinician, comprising:
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sensing a manifestation of acoustic energy produced by matter of biological origin; producing an output signal representative of the sensed manifestation of acoustic energy; receiving a sensor signal from a sensor of the biosensor, wherein the sensor is configured to sense at least one of temperature, capacitance, impedance, pressure, force and acceleration; detecting a plurality of features of the sensor signal, the features including a parameter indicative of sensor contact or proximity between a housing of the electronic biosensor and a hand or fingers of the clinician; discriminating between intended use and unintended use of the biosensor by the clinician; and controlling power supplied to biosensor components based on the sensor signal features. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37)
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39. An electronic biosensor, comprising:
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a housing configured for hand-held manipulation by a clinician; a transducer supported by the housing and configured to sense a manifestation of acoustic energy produced by matter of biological origin; an output device configured to output a signal comprising signal information produced by the transducer; a processor disposed in the housing; and power management circuitry disposed in the housing and coupled to the processor, the power management circuitry coupled to at least a first sensor and a second sensor of the biosensor respectively configured to produce first and second sensor signals, the power management circuitry implementing conditional power management logic by which the power management circuitry discriminates between intended use and nonuse of the biosensor by the clinician based on a state of the first and second sensor signals, wherein one of the first and second signals is indicative of contact between the clinician'"'"'s hand or fingers with a least a portion of the housing, wherein one of the at least first and second sensor signals is one of temperature, capacitance, impedance, pressure, force and acceleration, the power management circuitry and the processor cooperating to control power supplied to biosensor components based on the state of the first and second sensor signals. - View Dependent Claims (40)
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Specification