Abstract: An e-garment that includes embedded circuitry and a battery for power the embedded circuitry further includes several charge generator circuits that can include both active and passive charge generators, such as solar cells, triboelectric generator, piezoelectric generator, and thermoelectric generator circuits. Each different generator circuit accumulates charge in a respective storage capacitor until the voltage of the respective capacitor is sufficiently higher than that of the battery to overcome the forward voltage bias of a protective diode, where some of the charge flows out of the capacitor to the battery. Each of the charger generator circuits can contribute charge to the battery to prolong its operating time needed between recharges, if not actually recharge the battery.

Abstract: A system, method, and apparatus for monitoring ambient sound and vibration levels at the location of a user allows a determination as to whether the user is exceeding a maximum allowed exposure time as determined by an occupational standard. The sound and vibration level data can be evaluated locally at the mobile communication device, as well as transmitted to a backend system to allow supervision of personnel associated with the backend system as a further assurance that personnel comply with exposure limits. Further, the mobile communication device, in response to ambient conditions, adjusts the settings of its alerting sound and the vibration level of an associated vibration accessory to ensure perception of alerts by the mobile communication device for the user of the mobile communication device.

Abstract: A system, method, and apparatus for monitoring ambient sound and vibration levels at the location of a user allows a determination as to whether the user is exceeding a maximum allowed exposure time as determined by an occupational standard. The sound and vibration level data can be evaluated locally at the mobile communication device, as well as transmitted to a backend system to allow supervision of personnel associated with the backend system as a further assurance that personnel comply with exposure limits. Further, the mobile communication device, in response to ambient conditions, adjusts the settings of its alerting sound and the vibration level of an associated vibration accessory to ensure perception of alerts by the mobile communication device for the user of the mobile communication device.