Patent ID: 8514068
Filing Date: 2013-08-20
Classification: A61B

Abstract:
1. A receiver unit, comprising: a receiver circuit, the receiver circuit receives a wireless signal from a user-worn monitor, the wireless signal includes respective pulses generated by the user-worn monitor, each respective pulse is generated when a respective instance of a bodily action of the user is detected, and the respective pulses include identifier pulses which each have a duration which identifies the user-worn monitor, interspersed among other pulses, where the respective pulses are provided in successive cycles including at least first and second cycles; an amplifier circuit associated with the receiver circuit, the amplifier circuit provides an amplified signal based on the wireless signal; a microprocessor associated with the amplifier circuit, the microprocessor operates in a crosstalk mode in which it processes the amplified signal to interpret the duration of each of the identifier pulses as an identifier of the user-worn monitor, synchronizes with the identifier pulses, and determines a rate of the bodily action based on: (a) a time interval between at least one identifier pulse in the first cycle and at least one identifier pulse in the second cycle, and (b) a number of pulses, including at least one of the other pulses, between the at least one identifier pulse in the first cycle and the at least one identifier pulse in the second cycle; and an output device associated with the microprocessor, the output device provides an output based on the rate of the bodily action.