Monitoring device with a pedometer

  • US 9,591,973 B1
  • Filed: 04/16/2016
  • Issued: 03/14/2017
  • Est. Priority Date: 06/13/2011
  • Status: Expired due to Fees
First Claim
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1. A method for monitoring a distance traveled by a user using an arm-based pedometer, the method comprising:

  • generating from an arm-based pedometer a plurality of signals corresponding to the movement of the user, the base-based pedometer comprising an optical sensor for generating a signal corresponding to a real-time heart rate of the user, an accelerometer for generating the plurality of signals, and a processor configured to perform a pedometer function using an adaptive threshold correction (Wi) computed from a filtered accelerometer signal (Si) from the accelerometer to generate a distance traveled by the user;

    processing the plurality of signals at the processor to generate a distance traveled by the user; and

    displaying the distance traveled by the user on a display screen of the arm-based pedometer;

    wherein the optical sensor is selected from the group consisting of an optical sensor comprising a light-to-voltage photodetector capable of transmitting a digital signal, and at least one light emitting diode capable of radiating light ranging from 550 nanometers to 1100 nanometers, an optical sensor comprising a light-to-frequency photodetector capable of transmitting a digital signal, and at least one light emitting diode capable of radiating light ranging from 600 nanometers to 1100 nanometers, an optical sensor comprising a plurality of light-to-voltage photodetectors capable of transmitting a digital signal, and at least one light emitting diode capable of radiating light ranging from 550 nanometers to 1100 nanometers, an optical sensor comprising a plurality of light-to-frequency photodetectors capable of transmitting a digital signal, and at least one light emitting diode capable of radiating light ranging from 550 nanometers to 1100 nanometers, and an optical sensor comprising a light-to-voltage photodetector capable of transmitting a digital signal, and at least one light emitting diode capable of radiating light from 500 nanometers to 570 nanometers.

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