Apparatus and methods for monitoring physiological data during environmental interference
First Claim
Patent Images
1. A monitoring apparatus comprising:
- a housing configured to be positioned within an ear of a subject; and
a sensor module disposed within the housing, the sensor module comprising;
a printed circuit board (PCB) having opposite first and second sides;
an optical emitter attached to the first side of the PCB, wherein the optical emitter directs modulated electromagnetic radiation at a target region of the ear;
an optical detector attached to the first side of the PCB adjacent to the optical emitter, wherein the optical detector detects an energy response signal from the subject that is associated with a physiological condition of the subject;
an optical filter overlying at least a portion of the optical detector, wherein the optical filter attenuates time-varying environmental light interference at one or more selected wavelengths from the energy response signal, wherein the time-varying environmental light interference is caused by sunlight and/or ambient light; and
at least one processor that controls operations of the optical emitter and/or optical detector.
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Abstract
Apparatus and methods for attenuating environmental interference are described. A wearable monitoring apparatus includes a housing configured to be attached to the body of a subject and a sensor module that includes an energy emitter that directs energy at a target region of the subject, a detector that detects an energy response signal—or physiological condition—from the subject, a filter that removes time-varying environmental interference from the energy response signal, and at least one processor that controls operations of the energy emitter, detector, and filter.
175 Citations
15 Claims
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1. A monitoring apparatus comprising:
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a housing configured to be positioned within an ear of a subject; and a sensor module disposed within the housing, the sensor module comprising; a printed circuit board (PCB) having opposite first and second sides; an optical emitter attached to the first side of the PCB, wherein the optical emitter directs modulated electromagnetic radiation at a target region of the ear; an optical detector attached to the first side of the PCB adjacent to the optical emitter, wherein the optical detector detects an energy response signal from the subject that is associated with a physiological condition of the subject; an optical filter overlying at least a portion of the optical detector, wherein the optical filter attenuates time-varying environmental light interference at one or more selected wavelengths from the energy response signal, wherein the time-varying environmental light interference is caused by sunlight and/or ambient light; and at least one processor that controls operations of the optical emitter and/or optical detector. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification