Abstract: The disclosed wearable device systems include several features for alerting and guiding persons who are approaching or near to potentially hazardous or high-risk conditions in their nearby environment. Sensor data from wearable devices (also referred to herein as “wearables”) are used to determine the presence of various unsafe environmental conditions and phenomenon, including dangerous terrain or other unusual conditions. The wearable would be used to warn a person, for example via auditory or haptic-based feedback, if the person is about to encounter an unsafe condition. In particular, the proposed systems can be of great benefit to the visually impaired, those persons with physical disabilities, or persons otherwise vulnerable to particular environmental conditions.

Abstract: A passive semi-insert noise reducing device configured for insertion into the ear of a subject includes at least one muffler tube having a closed end and an opposing open end, the muffler tube being configured to be secured to the head of a subject. The at least one muffler tube is defined by an elongate hollow tubular section, including the closed end, and a transverse hollow tube at the open end that is configured for placement in the outer ear of the subject. The at least one muffler tube is defined by a length that produces quarter wave resonance in low audible sound frequencies. A soft sealing member disposed onto an exterior surface of the hollow connecting tube has a distal end surface that is substantially flush with the open end of the muffler tube.

Abstract: A passive semi-insert noise reducing device configured for insertion into the ear of a subject includes at least one muffler tube having a closed end and an opposing open end, the muffler tube being configured to be secured to the head of a subject. The at least one muffler tube is defined by an elongate hollow tubular section, including the closed end, and a transverse hollow tube at the open end that is configured for placement in the outer ear of the subject. The at least one muffler tube is defined by a length that produces quarter wave resonance in low audible sound frequencies. A soft sealing member disposed onto an exterior surface of the hollow connecting tube has a distal end surface that is substantially flush with the open end of the muffler tube.

Abstract: An apparatus for providing hearing protection to a wearer includes an incorporated set of eyewear having an eyewear frame. In one version, a pair of ear muffler tubes are coupled to the supporting members of the frame or made integral therewith, the muffler tubes each extending to the entrance of the ear canal of a person to reduce the level of ambient noise in the ear canal and includes at least one muffler tube of appropriate dimensions sufficient to isolate the ear canal from ambient air that substantially reduces the acoustic impedance at the entrance of the ear canal over a wide range of audible sound frequencies. A connecting tube for attachment to the ear canal is coupled to the ear muffler tube.

Abstract: An apparatus for providing hearing protection to a wearer includes an incorporated set of eyewear having an eyewear frame. In one version, a pair of ear muffler tubes are coupled to the supporting members of the frame or made integral therewith, the muffler tubes each extending to the entrance of the ear canal of a person to reduce the level of ambient noise in the ear canal and includes at least one muffler tube of appropriate dimensions sufficient to isolate the ear canal from ambient air that substantially reduces the acoustic impedance at the entrance of the ear canal over a wide range of audible sound frequencies. A connecting tube for attachment to the ear canal is coupled to the ear muffler tube.