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Monitoring device with an accelerometer, method and system

  • US 8,579,827 B1
  • Filed: 05/06/2012
  • Issued: 11/12/2013
  • Est. Priority Date: 09/28/2004
  • Status: Expired due to Fees
First Claim
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1. A system for monitoring a real-time vital sign of a user, the system comprising:

  • a monitoring device comprisingan optical sensor for generating a real-time digitized optical signal corresponding to a flow of blood through an artery of the user,an accelerometer for generating a real-time accelerometer data comprising a X-axis signal, a Y-axis signal and a Z-axis signal based on a movement of the user, anda first transceiver, the first transceiver wirelessly transmitting the real-time digitized optical signal and the real-time accelerometer data from the monitoring device; and

    a mobile communication device comprisinga second transceiver for receiving the real-time digitized optical signal and the real-time accelerometer data from the monitoring device, and for transmitting communications from the mobile communication device to the monitoring device,a processor in electrical communication with the second transceiver, the processor configured to receive the real-time digitized signal and the real-time accelerometer data, the processor configured to calculate a period of motion related harmonics from the real-time accelerometer data utilizing a repetitive motion pattern analyzer, the processor configured to modify the real-time digitized optical signal by suppressing the period of motion related harmonics calculated by the motion pattern analyzer to generate a modified optical signal, the processor configured to generate a real-time heart rate for the user from the modified optical signal,anda display for displaying the real-time heart rate value for the user received from the processor.

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