Abstract: Methods and apparatus are described for facilitating the extraction of cleaner biometric signals from biometric monitors. A motion reference signal is generated independently from a biometric signal and then the motion reference signal is used to remove motion artifacts from the biometric signal.

Abstract: The methods and apparatuses presented herein determine and/or improve the quality of one or more physiological assessment parameters, e.g., response-recovery rate, based on biometric signal(s) and/or motion signal(s) respectively output by one or more biometric and/or motion sensors. The disclosed methods and apparatuses also estimate a user's stride length based on a motion signal and a determined type of user motion, e.g., walking or running. The speed of the user may then be estimated based on the estimated stride length.

Abstract: Methods and apparatus are described for facilitating the extraction of cleaner biometric signals from biometric monitors. A motion reference signal is generated independently from a biometric signal and then the motion reference signal is used to remove motion artifacts from the biometric signal.

Abstract: A wearable audio device includes a housing configured to be positioned at an ear of a subject, a speaker and a chipset within the housing. The chipset includes a plurality of sensor elements, at least one signal processor, at least one digital bus, power regulating circuitry, and at least one wireless transmitter. The sensor elements include at least one optical emitter, at least one optical detector, and at least one noise source. The chipset is positioned within the housing such that the at least one optical emitter and at least one optical detector are in optical communication with the ear via a window in the housing. The at least one signal processor includes sensor signal conditioning algorithms configured to process signals from the sensor elements to generate physiological assessment information about the subject. The at least one wireless transmitter is configured to communicate the physiological assessment information to a remote device.

Abstract: Monitoring apparatus and methods are provided for assessing a physiological condition of a subject. At least two types of physiological information are detected from a subject via a portable monitoring device associated with the subject, and an assessment of a physiological condition of the subject is made using the at least two types of physiological information, wherein each type of physiological information is individually insufficient to make the physiological condition assessment. Environmental information from a vicinity of a subject also may be detected, and an assessment of a physiological condition of the subject may be made using the environmental information in combination with the physiological information. Exemplary physiological information may include subject heart rate, subject activity level, subject tympanic membrane temperature, and subject breathing rate. Exemplary environmental information may include humidity level information in the vicinity of the subject.

Abstract: A biometric monitoring device configured to be worn by a subject includes a physiological sensor configured to detect and/or measure physiological information from the subject, and a processor configured to analyze signals from the physiological sensor to detect a signature unique to the subject wearing the biometric monitoring device, and determine if the detected signature is a first signature associated with the biometric monitoring device being worn or a second signature associated with the biometric monitoring device not being worn. The first and second signatures are generated by the processor prompting the subject to indicate at prior times when the biometric monitoring device is being worn and is not being worn.

Abstract: A wearable device includes a housing, at least one optical emitter supported by the housing, wherein the at least one optical emitter is configured to generate modulated light, at least one optical detector supported by the housing, and a tip removably secured to the housing. The tip includes first and second portions, wherein the first portion directs light along a first path from the at least one optical emitter to a body of a subject wearing the device, and wherein the second portion directs light from the body of the subject to the optical detector along a second path that is different from the first path. The device may also include an analog-to-digital converter, a motion sensor, and a processor. The processor executes a first filter that attenuates sunlight noise and a second filter that attenuates motion artifacts.

Abstract: A system for monitoring the cardiopulmonary functioning of a person includes a remote terminal and a sensor module configured to be worn by the person. The sensor module includes at least one physiological sensor configured to sense the following types of physiological information generated by the person: pulse rate, blood flow, and blood pressure; at least one signal processor configured to process signals generated by the at least one physiological sensor; and at least one transmitter responsive to the at least one signal processor that is configured to transmit at least one signal to the at least one remote terminal. The at least one signal processor is configured to focus processing resources on one of the types of physiological information in response to a specified preference by the person.

Abstract: A wearable biometric monitoring device is configured to assess the biometric signal quality of one or more sensors associated with the monitoring device, determine how the user should adjust the device to improve the biometric fit, and instruct the user to wear the biometric monitoring device a certain way. Communicating instructions to a user may include instructing the user to execute a testing regimen while wearing the biometric monitoring device. The testing regimen facilitates an estimation of a signal quality that can be used to provide feedback to the user that he/she needs to adjust the device to improve the biometric fit and the biometric signal quality.

Abstract: A wearable biometric monitoring device includes a physiological sensor configured to detect and/or measure physiological information from a subject wearing the device, an accelerometer, and a processor. The processor is configured to analyze signals from the accelerometer to identify a 1G force vector on the biometric monitoring device, and determine whether an orientation of the 1G force vector is aligned with a desired vector for the 1G force. The device may also include a transmitter, and the processor is configured to communicate information, via the transmitter, to the subject that the device is being worn correctly if the orientation of the 1G force vector is aligned with the desired vector for the 1G force and to communicate information to the subject that the device is not being worn correctly if the orientation of the 1G force vector is not aligned with the desired vector for the 1G force.

Abstract: A client device includes a display and a processor configured to obtain a data stream from a remote sensor via a communication protocol. The remote sensor is a physiological sensor monitoring a subject and/or an environmental sensor monitoring an environment in a vicinity of the subject, and the data stream includes a sensor metric, a metric identifier, and dynamically updated integrity information about the sensor metric. The processor is also configured to identify a statistical distribution function associated with the remote sensor via a function selector associated with the communication protocol, and display, via the display, the sensor metric with statistical information about the sensor metric using the identified statistical distribution function.

Abstract: A light-guiding earpiece configured to be worn by a subject includes a base comprising a speaker and at least one optical detector, a housing extending outwardly from the base that is configured to be positioned within an ear of a subject, and a flexible optical emitter configured to be conformable to at least a portion of the earpiece. The housing encloses the speaker and comprises at least one aperture through which sound from the speaker can pass. The flexible optical emitter may be integrally formed within the housing, and the housing may include translucent material that forms a light-guiding region through which light from the flexible optical emitter can pass. The optical detector may be a flexible optical detector.

Abstract: Wearable apparatus for monitoring various physiological and environmental factors are provided. Real-time, noninvasive health and environmental monitors include a plurality of compact sensors integrated within small, low-profile devices, such as earpiece modules. Physiological and environmental data is collected and wirelessly transmitted into a wireless network, where the data is stored and/or processed.

Abstract: A cover is configured to be removably attached to and at least partially cover a hearing aid earpiece. The removable cover includes light transmissive material in at least one portion thereof that is configured to guide light from at least one optical emitter associated with the hearing aid earpiece to a region of a body of a subject wearing the hearing aid earpiece and/or guide light from the body of the subject to at least one optical detector associated with the hearing aid earpiece. The removable cover may include at least one alignment member that facilitates stability of the hearing aid earpiece when inserted within an ear of the subject. The removable cover may include at least one lens region, at least one light diffusion region, and/or at least one luminescence region in optical communication with the light transmissive material.

Abstract: A monitoring device configured to be attached to a body of a subject includes a sensor having at least one optical emitter and at least one optical detector, and a processor coupled to the sensor. The processor is configured to instruct the at least one optical emitter to emit a different wavelength of light into the body of the subject during each of a series of respective time intervals. The processor is configured to measure a respective different physiological parameter from signals produced by the at least one optical detector upon receiving light from the body of the subject during each of the respective time intervals.

Abstract: The methods and apparatuses presented herein determine and/or improve the quality of one or more physiological assessment parameters, e.g., response-recovery rate, based on biometric signal(s) and/or motion signal(s) respectively output by one or more biometric and/or motion sensors. The disclosed methods and apparatuses also estimate a user's stride length based on a motion signal and a determined type of user motion, e.g., walking or running. The speed of the user may then be estimated based on the estimated stride length.

Abstract: A method of producing subject-specific metric statistics includes collecting physiological data and meta data from a subject via a sensor system. The sensor system includes at least one sensor element, at least one signal processor, and memory in communication with the at least one signal processor. The collected data is processed via the at least one signal processor to determine a plurality of metric features from the collected data. The plurality of metric features are processed using one or more data clustering techniques via the at least one signal processor to generate at least one subject-specific metric statistic and at least one sensor metric. The at least one subject-specific metric statistic and the at least one sensor metric may be displayed via a display associated with a client device.

Abstract: An apparatus includes a digital camera configured to capture a plurality of images of a region of a body of a subject, a photoplethysmography (PPG) sensor configured to sense blood flow information from the subject, and a processor in communication with the digital camera and the PPG sensor. The processor is configured to analyze a blood flow information signal from the PPG sensor and determine a heart rate frequency and/or a breathing rate frequency of the subject. The processor is also configured to analyze the plurality of images and determine whether or not a portion of the region of the body is modulating at a frequency that is similar to the heart rate frequency and/or the breathing rate frequency of the subject.

Abstract: Methods and apparatus for monitoring a subject are described. A monitoring device configured to be attached to a body of a subject includes a sensor that is configured to detect and/or measure physiological information from the subject and a motion sensor configured to detect and/or measure subject motion information. The physiological sensor and motion sensor are in communication with a processor that is configured to receive and analyze signals produced by the physiological sensor and motion sensor. The processor is configured to process motion sensor signals to identify an activity characteristic of the subject. Once an activity characteristic is determined, the processor is configured to select a biometric signal extraction algorithm or circuit in response to the activity characteristic of the subject, and then process physiological sensor signals via the biometric signal extraction algorithm or circuit to produce physiological information about the subject.

Abstract: A monitoring device includes a band capable of at least partially encircling a portion of a body of a subject. An optical source and an optical detector are supported by the band. A first light guide is in optical communication with the optical source and a second light guide is in optical communication with the optical detector. A distal end of the first light guide is configured to deliver light from the optical source into the body, and a distal end of the second light guide is configured to collect light from the body and deliver collected light to the optical detector. The first and second light guides define respective first and second axial directions that diverge outwardly from the band such that light rays directed into the body via the first light guide cannot overlap with light rays collected by the second light guide.