Garmin Corporation

Tracy L Oliver

Scott J Brunk

John H Lovitt

David J Downey

Wai C Lee

Ryan T Moore

Claudette D Fisher

Scott Burgett

A personal training device () adapted to assist a user in reaching performance goals, navigating, and accumulating performance statistics. In a preferred embodiment, the device broadly comprises a housing (); an attachment mechanism (); a GPS component (); a user interface (), including an input portion () and an output portion (); a processor (), including a timer () and a memory element (); a data interface (), including an input portion () and an output portion (); an audio component (); and a power supply (). The device () is adapted to store goal information, monitor performance using GPS-derived data, and communicate performance information.

Personal training device using GPS data

In a combined GPS/altimeter device, the calibration and hence the accuracy of barometric altimeter measurements are enhanced with the aid of derived altitudes from a GPS. The device determines the need for calibration and perform the subsequent computations necessary to facilitate the calibration. Furthermore, the device determines a correction quantity that should be applied to barometric altitude readings, thereby allowing the device to be calibrated while in motion. Both of these features ultimately result in a more accurate determination of altitude.

Device and method for calibrating and improving the accuracy of barometric altimeters with GPS-derived altitudes

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Olathe, KS, United States of America

Tracy L Oliver