| 摘要 |
A portable monitoring device to calculate a number of stairs or flights of stairs traversed by the user, in one aspect, comprising a housing having a physical size and shape that is adapted to couple to the body of the user, a motion sensor, disposed in the housing, to sample motion of the user in response to a motion sample signal and generate data which is representative thereof; an altitude sensor, disposed in the housing, to sample an altitude of the user in response to an altitude sample signal and generate data which is representative thereof; and processing circuitry, disposed in the housing to: (i) generate the altitude sample signal using the data which is representative of motion of the user, and (ii) determine a change in altitude of the user using the data which is representative of a change in altitude of the user.
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