1
William H Righter, John J Fallin: Wrist worn heart rate monitor. Stoel Rives Boley Jones & Grey, July 3, 1990: US04938228 (162 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
Brian M Dugan, Valerie G Dugan: Methods and apparatus for encouraging wakefulness of a driver using biometric parameters measured using a wearable monitor. Dugan & Dugan PC, September 25, 2018: US10080518

In a first aspect, a method is provided for determining a level of wakefulness of a driver of a vehicle using a mobile telephone. The method includes (a) employing a wearable monitor to detect a biometric parameter of a user while the user is driving a vehicle; (b) communicating biometric parameter ...


3
Yukio Takei, Takeshi Mochimaru, Takahiro Kamijo: Biological information measurement device. Seiko Epson Corporation, Kilpatrick Townsend & Stockton, April 24, 2018: US09949649

A biological information measurement device includes a device main body which includes a sensor, a processor, and a battery. The sensor acquires biological information of a user. The processor instructs the sensor to acquire the information at certain discrete times with a period, and processes the ...


4
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 ...


5
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 ...


6
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 ...


7
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 ...