US 2006/0041200 A1 · Physiological sensor device

Abstract

A heart rate monitoring system for use in sport and fitness training that includes a sensor belt worn on the waist of the user and a display device worn on the wrist of the user. The sensor belt has a pair of sensors that can be located on opposite sides of the body in various locations, such as near the kidneys, near the ilium bones in the pelvis, or on the front abdominal area of the user. Various signal processing techniques are employed to extract the degraded signal that is available at the waist area as compared to the chest area. These signal-processing techniques include bandpass filtering, an adaptive time window, a delayed transmission to allow for correction methods such as missed beat replacement and extra beat deletion, a lead off detection and adjustment algorithm, automatically adjustable gain control, and waveform detection and characterization.

Claims20

Dependent claims

A heart rate monitoring system for use by a wearer in monitoring the wearer's heart rate, the wearer having a body with skin, a waist, a chest region, and a centerline dividing the body into a right side and a left side, the system comprising:

a belt that fits around and is adapted to be positioned on the waist of the wearer;
a plurality of sensors retained within the belt in a position adapted to be held against the wearer's skin, each sensor sensing the voltage potential of the portion of the skin that sensor is in contact with, there being at least one sensor adapted to be positioned on the left side and at least one sensor adapted to be positioned on the right side of the wearer's body wherein the sensors are each positioned such that a straight line drawn through the body between any two of the sensors does not run through the chest region;
and
electronic devices receptive of the sensed voltage potentials from the plurality of sensors and operative to determine a heart rate of the wearer.

1 more element

Dependencies are inferred from the claim text.

Physiological sensor device

Life of this patent

Physiological sensor device

Life of this patent

Abstract

Claims20