Patent ID: 7468036
Filing Date: 2008-12-23
Classification: A61B,G04G

Abstract:
1. A method of monitoring a user's vital signs, the method comprising: deactivating a processor for a deactivation period of 128 to 640 microseconds; activating an optical sensor during the deactivation period to generate a signal corresponding to the flow of blood through at least one artery of the user, the optical sensor comprising a photodetector and a plurality of light-emitting diodes; reactivating the processor to process the signal to obtain an average pulse value of a first set of time periods; processing the signal to obtain an average pulse value of a second set of time periods, the second set of time periods less than the first set of time periods; subtracting the average pulse value of the second set of time periods from the average pulse value of the first set of time periods to generate a first filtered pulse data value; processing the first filtered pulse data value to obtain a first heart rate value; using the first heart rate value to filter the subsequent average pulse values generated from the digital signal to obtain a real-time heart rate value of the user; processing the real-time heart rate data of the user for analysis of real-time calories expended by the user and for real-time display of a plurality of the user's vital signs; and displaying the plurality of user's vital signs on a display member, the display of the plurality of user's vital signs controlled by the user using a control component.