Abstract: A textile-based electrode system includes a first fabric layer having an inner and an outer surface. The inner surface includes a knitted electrode configured to be placed in contact with the skin of a user. A second fabric layer is disposed and configured to contact the outer surface of the first fabric layer. The second fabric layer includes a knitted conductive pathway configured to be electrically coupled to the knitted electrode. Furthermore, a third fabric layer is configured and disposed to contact the second fabric layer. A connector is disposed on the third fabric layer and is configured to be electrically coupled to the knitted conductive pathway. The second fabric layer can be folded about a first fold axis and the third fabric layer can be folded about a second fold axis to place the second fabric layer in contact with the first fabric layer and the third fabric layer.

Abstract: A calibration device and method of manufacturing the same. The calibration device for a hearing earpiece configured to at least partially protrude into the ear canal of a user includes a calibration base. The calibration base a calibration insert. An air chamber is defined between the calibration base and the calibration insert. The calibration device also includes at least one earpiece receiving mechanism defined on the calibration insert. The at least one earpiece receiving mechanism is configured to create an sealed connection between given ear piece and the air chamber for calibration. The earpiece receiving mechanism is configured to at least partially receive the given earpiece. A corresponding method of manufacturing is also included.

Abstract: Embodiments described herein relate generally to devices, systems and methods for optimizing and masking compression in a biosensing garment. The biosensing garment has a first fabric portion configured to be disposed about a circumferential region of a user, the first fabric portion having an inner surface including electrode sensor assembly configured to be placed in contact with the skin of the user, the first fabric portion having a first compression rating; and a second fabric portion extending from the first fabric portion, the second fabric portion having a second compression rating less than the first compression rating.

Abstract: Embodiments described herein relate generally to biosensing garments, and in particular, to systems and methods for monitoring respiration in a biosensing garment, whereby an improved integration of the respiration monitoring circuit into the garment is achieved, resulting in improved signal quality and durability. In some embodiments, an apparatus includes an elongate member having a longitudinal axis and configured to be stretchable along its longitudinal axis. The elongate member includes a plurality of elastic members (e.g., a first elastic member, a second elastic member, and a third elastic member) that extend along the longitudinal axis. A conductive member is coupled to the first, second and third members, and forms a “curved” pattern along the longitudinal axis of the elongate member. The conductive member is configured to change from a first configuration to a second configuration as the elongate member stretches along its longitudinal axis.

Abstract: Embodiments described herein relate generally to wearable electronic biosensing garments. In some embodiments, an apparatus comprises a biosensing garment and a plurality of electrical connectors that are mechanically fastened to the biosensing garment. A plurality of printed electrodes is disposed on the biosensing garment, each being electrically coupled, via a corresponding conductive pathway, to a corresponding one of the plurality of electrical connectors. The apparatus can further include an elongate member including a conductive member that is coupled to a plurality of elastic members in a curved pattern and that is configured to change from a first configuration to a second configuration as the elongate member stretches. The change from the first configuration to the second configuration can result in a change of inductance of the conductive member.

Abstract: Embodiments described herein relate generally to biosensing garments, and in particular, to systems and methods for monitoring respiration in a biosensing garment, whereby an improved integration of the respiration monitoring circuit into the garment is achieved, resulting in improved signal quality and durability. In some embodiments, an apparatus includes an elongate member having a longitudinal axis and configured to be stretchable along its longitudinal axis. The elongate member includes a plurality of elastic members (e.g., a first elastic member, a second elastic member, and a third elastic member) that extend along the longitudinal axis. A conductive member is coupled to the first, second and third members, and forms a “curved” pattern along the longitudinal axis of the elongate member. The conductive member is configured to change from a first configuration to a second configuration as the elongate member stretches along its longitudinal axis.

Abstract: A personal protection system can comprise a radio frequency identification (RFID) tag coupled to a personal protective equipment, a barometric sensor coupled to the RFID tag, and a computing device communicatively coupled to the RFID tag and the barometric sensor. The computing device can comprise a processing unit that can be configured to access radio frequency (RF) data received from the RFID tag and receive, from the barometric sensor, barometric data determined by the barometric sensor. Further, the processing unit can be configured to determine a positioning state of the personal protection equipment. The positioning state can indicate whether the personal protection equipment is being worn correctly or incorrectly by the user.

Abstract: In some embodiments, an apparatus comprises a biosensing garment and an electronics assembly. The biosensing garment includes a sensor, a conductive pathway, and a connection region including one or more connectors that are disposed on a PCB. The connection region is electrically coupled to the conductive pathway and the sensor. The connection region is further configured to be electronically coupled to the electronics assembly via at least one conductive contact. In some embodiments, the electronics assembly includes at least one conductive contact that is configured to be electronically coupled to at least one portion of the PCB.

Abstract: A personal protection system can comprise a radio frequency identification (RFID) tag coupled to a personal protective equipment, a barometric sensor coupled to the RFID tag, and a computing device communicatively coupled to the RFID tag and the barometric sensor. The computing device can comprise a processing unit that can be configured to access radio frequency (RF) data received from the RFID tag and receive, from the barometric sensor, barometric data determined by the barometric sensor. Further, the processing unit can be configured to determine a positioning state of the personal protection equipment. The positioning state can indicate whether the personal protection equipment is being worn correctly or incorrectly by the user.

Abstract: Embodiments described herein relate generally to biosensing garments, and in particular, to systems and methods for monitoring respiration in a biosensing garment, whereby an improved integration of the respiration monitoring circuit into the garment is achieved, resulting in improved signal quality and durability. In some embodiments, an apparatus includes an elongate member having a longitudinal axis and configured to be stretchable along its longitudinal axis. The elongate member includes a plurality of elastic members (e.g., a first elastic member, a second elastic member, and a third elastic member) that extend along the longitudinal axis. A conductive member is coupled to the first, second and third members, and forms a “curved” pattern along the longitudinal axis of the elongate member. The conductive member is configured to change from a first configuration to a second configuration as the elongate member stretches along its longitudinal axis.

Abstract: Embodiments described herein relate generally to devices, systems and methods for optimizing and masking compression in a biosensing garment. The biosensing garment has a first fabric portion configured to be disposed about a circumferential region of a user, the first fabric portion having an inner surface including electrode sensor assembly configured to be placed in contact with the skin of the user, the first fabric portion having a first compression rating; and a second fabric portion extending from the first fabric portion, the second fabric portion having a second compression rating less than the first compression rating.

Abstract: An improved EarTip may result from the distribution of PTFE throughout a slow recovery foam. Such an EarTip may have a finer, more uniform cell structure that aids in insertion within a user's ear canal. It may also have a smoother skin, with a lower kinetic coefficient of friction, and may provide improved sound attenuation.

Abstract: In some embodiments, an apparatus comprises a biosensing garment and an electronics assembly. The biosensing garment includes a sensor, a conductive pathway, and a connection region including one or more connectors that are disposed on a PCB. The connection region is electrically coupled to the conductive pathway and the sensor. The connection region is further configured to be electronically coupled to the electronics assembly via at least one conductive contact. In some embodiments, the electronics assembly includes at least one conductive contact that is configured to be electronically coupled to at least one portion of the PCB.

Abstract: An earmuff (3) includes a disc-shaped elastomeric pressure-equalizing element (6?) that lies between an inner end of a cup (4) and an outer face of an annular element (7). The elastomeric element (6?) is found to provide a more consistent blocking of environmental sound. The cup inner end has a radial projection (15) that projects into a recess (19), and the elastomeric element is bent to lie between the projection and the walls of the recess.

Abstract: Embodiments relate to earmuffs with speakers, and attempt to improve speaker acoustic quality without negatively impacting sound attenuation of the earmuffs. Embodiments may comprise a speaker plate located behind a speaker unit, and typically the speaker plate comprises a recessed portion with a plurality of holes. When the speaker plate is in place behind the speaker unit, it may cause the speaker to be more accurate across a broad range of frequencies without negatively impacting sound attenuation.