Abstract: A personal injury mitigation device for sensing a fall condition and responsively deploying a protective device in bathrooms or other elevated-risk spatial environments. A fall sensing system of the device includes a sensor and an analysis module that processes a signal from the sensor to determine whether a fall condition exists, and if so, transmits a trigger signal to a deployment system. The deployment system includes a stored energy system and an actuation system operable to release stored energy in response to receipt of the trigger signal. An impact mitigation device receives the released energy from the deployment system, which causes deployment of a protective device (such as an airbag) from a housing in which the protective device is stored in a compact state. In the deployed state, the protective device is operable to protect a person against injury due to impact resulting from a fall.

Abstract: A TDMA radio communication system provides communication service to a plurality of mobile communication units through use of a TDMA frame. The TDMA frame includes a plurality of timeslots that are distributed across a TDMA frame duration and are used to facilitate communications involving a first mobile and a second mobile. Audio delays are reduced using a method that includes the steps of measuring a hold time for each of the mobiles, and determining a present aggregate hold time based at least in part on the measured hold times. When the present aggregate hold time exceeds the TDMA frame duration, the method provides for the re-assignment of at least one of the mobiles to an alternate timeslot within the TDMA frame.