HEART RATE MONITOR WITH CROSS TALK REDUCTION
First Claim
1. A heart rate monitor, comprising:
- a receiver which receives wireless signals which include a plurality of pulses, the plurality of pulses include at least pulses from a transmitter worn by a first user which represent heart beats of the first user, and pulses from a transmitter worn by a second user which represent heart beats of the second user, where the pulses from the transmitter worn by the second user are unwanted cross-talk;
at least one micro-controller associated with the receiver, the at least one micro-controller associates a peak amplitude with each of the plurality of pulses, determines an amplitude range based on at least one of the plurality of pulses, includes pulses of the plurality of pulses whose associated peak amplitude is within the amplitude range as being candidate heart beats of the first user, determines a heart rate of the first user based on one or more of the candidate heart beats, and excludes pulses of the plurality of pulses whose associated peak amplitude is below the amplitude range from being used to determine the heart rate of the first user; and
at least one display device associated with the at least one micro-controller, the at least one display device displays the heart rate of the first user.
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Accused Products
Abstract
A heart rate monitor determines a heart rate for a primary subject by reducing noise and cross-talk from unwanted signal transmission sources. A set of pulse peaks having about the same amplitude and an amplitude greater than any other set of peaks are processed to determine a subject'"'"'s heart rate, while data having an amplitude below that of the set of peaks is ignored. To retrieve enough data to determine a peak amplitude, the signal having heart rate information is sampled at a frequency higher than a normal sampling frequency. In some embodiments, if no data is received for a set time period which is in or above the range, the threshold resets to zero under an assumption that the primary subject is no longer within transmitting range.
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Citations
20 Claims
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1. A heart rate monitor, comprising:
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a receiver which receives wireless signals which include a plurality of pulses, the plurality of pulses include at least pulses from a transmitter worn by a first user which represent heart beats of the first user, and pulses from a transmitter worn by a second user which represent heart beats of the second user, where the pulses from the transmitter worn by the second user are unwanted cross-talk; at least one micro-controller associated with the receiver, the at least one micro-controller associates a peak amplitude with each of the plurality of pulses, determines an amplitude range based on at least one of the plurality of pulses, includes pulses of the plurality of pulses whose associated peak amplitude is within the amplitude range as being candidate heart beats of the first user, determines a heart rate of the first user based on one or more of the candidate heart beats, and excludes pulses of the plurality of pulses whose associated peak amplitude is below the amplitude range from being used to determine the heart rate of the first user; and at least one display device associated with the at least one micro-controller, the at least one display device displays the heart rate of the first user. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A heart rate monitor, comprising:
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a wireless receiver which receives data which includes at least pulses transmitted by a transmitter worn by a first user, and pulses transmitted by a transmitter worn by a second user as unwanted cross-talk; at least one micro-controller associated with the receiver, the at least one micro-controller processes a first portion of the data to provide data representing a first set of peaks, detects an amplitude of each peak, identifies a peak whose amplitude is matched by a specified minimum number of peaks, sets a first amplitude range based on the amplitude which is matched by the specified minimum number of peaks, determines whether an amplitude of a subsequent peak of the first portion of data is below, within, or above the first amplitude range, does not consider the subsequent peak as a candidate peak associated with a heart rate of the first user if the amplitude of the subsequent peak is below or above the first amplitude range, and does consider the subsequent peak as a candidate peak associated with the heart rate of the first user if the amplitude of the subsequent peak is within the first amplitude range; and at least one display device associated with the at least one micro-controller, the at least one display device displays the heart rate of the first user. - View Dependent Claims (14, 15, 16)
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17. A heart rate monitor, comprising:
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a receiver which receives wireless signals which include a plurality of analog bursts, the plurality of analog bursts include at least analog bursts from a transmitter associated with a first user which represent heart beats of the first user, and analog bursts from a transmitter associated with a second user which represent heart beats of the second user, where the analog bursts from the transmitter worn by the second user are unwanted cross-talk; at least one micro-controller associated with the receiver, the at least one micro-controller converts the plurality of analog bursts to a digital samples, processes the digital samples to associate a respective amplitude with each digital sample, and uses the respective amplitude of each digital sample to identify which of the digital samples are associated with the first user and to determine a heart rate of the first user based on the digital samples which are identified as being associated with the first user; and at least one display device associated with the at least one micro-controller, the at least one display device displays the heart rate of the first user. - View Dependent Claims (18, 19, 20)
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Specification