1
William H Righter, John J Fallin: Wrist worn heart rate monitor. Stoel Rives Boley Jones & Grey, July 3, 1990: US04938228 (152 worldwide citation)

A wrist worn heart rate monitor (100) senses a noisy biosignal with one sensor (104A) in contact with the user's finger and another sensor (104B) in contact with the user's wrist. The sensed signal is modified by a filter (112), analog to digital converter (116) and digital filter (264). A correlato ...


2
Righter William H, Fallin John J: Heart rate monitor. Precor, August 22, 1990: GB2228331-A

A wrist worn heart rate monitor (100) senses a noisy biosignal with one sensor (104A) in contact with the user's finger and another sensor (104B) in contact with the user's wrist. The sensed signal is modified by a filter (112), analog to digital converter (116) and digital filter (264). A correlato ...


3
Righter William H, Fallin John J: Wrist worn heart rate monitor. Precor Incorporated, NAGAE Jerald E, August 23, 1990: WO/1990/009144

A wrist worn heart rate monitor (100) senses a noisy biosignal with one sensor (104A) in contact with the user's finger and another sensor (104B) in contact with the user's wrist. The sensed signal is modified by a filter (112), analog to digital converter (116) and digital filter (264). A correlato ...


4
Righter William H, Fallin John J: Wrist worn heart rate monitor.. Precor, December 4, 1991: EP0458896-A1

A wrist worn heart rate monitor (100) senses a noisy biosignal with one sensor (104A) in contact with the user's finger and another sensor (104B) in contact with the user's wrist. The sensed signal is modified by a filter (112), analog to digital converter (116) and digital filter (264). A correlato ...


5
HEART RATE MONITOR. January 26, 2017: US20170020398-A1

A wrist worn heart rate monitor includes a photoplethysmogram (PPG) sensor and an inertial sensor. Signals from the inertial sensor are used to identify and remove noise from the PPG signals. An initial heart rate value is selected from a number of heart rate candidates that remain in the resulting ...



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