Portable biometric monitoring devices having location sensors
First Claim
1. A method of determining a global position of a worn biometric monitoring device, the method comprising:
- (a) repeatedly and automatically syncing the worn biometric monitoring device with a secondary device associated with the worn biometric monitoring device, wherein the syncing comprises providing the worn biometric monitoring device with current ephemeris data from the secondary device using a wireless short-range, low-power communication protocol and each syncing comprises;
(i) determining an elapsed time from when the ephemeris data was last updated,(ii) comparing the elapsed time with a sync time threshold,(iii) determining that the elapsed time exceeds the sync time threshold, and(iv) obtaining updated ephemeris data from the secondary device.
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Abstract
Assisted-GPS for a portable biometric monitoring device is provided. The portable biometric monitoring device may obtain updated ephemeris data from an associated secondary device via a short-range, low-power communication protocol. The secondary device may be a computing device such as a smartphone, tablet, or laptop. Various rules may control when the ephemeris data is updated. The ephemeris data may be used in the calculation of the global position of the portable biometric monitoring device. Additionally, the portable biometric monitoring device may communicate downloaded position fixing data to the associated secondary device. The associated secondary device may then calculate the global position from the position fixing data.
48 Citations
13 Claims
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1. A method of determining a global position of a worn biometric monitoring device, the method comprising:
(a) repeatedly and automatically syncing the worn biometric monitoring device with a secondary device associated with the worn biometric monitoring device, wherein the syncing comprises providing the worn biometric monitoring device with current ephemeris data from the secondary device using a wireless short-range, low-power communication protocol and each syncing comprises; (i) determining an elapsed time from when the ephemeris data was last updated, (ii) comparing the elapsed time with a sync time threshold, (iii) determining that the elapsed time exceeds the sync time threshold, and (iv) obtaining updated ephemeris data from the secondary device. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A wearable biometric monitoring device, the wearable biometric monitoring device comprising:
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communication circuitry, the communication circuitry configured to receive ephemeris data from a secondary device associated with the wearable biometric monitoring device via a wireless short-range, low-power communication protocol and output the ephemeris data to a controller; and the controller comprising one or more processors and a memory, wherein the one or more processors, the memory, and the communication circuitry, are communicatively connected and the memory is configured to store ephemeris data and program instructions for controlling the one or more processors to; (a) repeatedly and automatically sync the wearable biometric monitoring device with the secondary device, wherein the sync comprises; (i) determining an elapsed time from when the ephemeris data was last updated; (ii) comparing the elapsed time with a sync time threshold; (iii) determining that the elapsed time exceeds the sync time threshold; and (iv) obtaining updated ephemeris data from the secondary device, (b) determine that a global position of the wearable biometric monitoring device should be calculated, and (c) calculate the global position using the current ephemeris data obtained in (a), wherein at least some of the syncing is conducted when the wearable biometric monitoring device is not determining the global position of the wearable biometric monitoring device. - View Dependent Claims (9, 10, 11, 12, 13)
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Specification