High accuracy pedometer and calibration method

Details High accuracy pedometer and calibration method High accuracy pedometer and calibration method

1990-07-30

1992-05-26

Heyman, John S.

Electrical pulse counters, pulse dividers, or shift registers: c

Applications

Measuring or testing

364561, 377 26, G01C 2200

Patent

active

051174448

ABSTRACT:
A preferred embodiment of the present invention comprises a pedometer having a housing, a weighted pendulum, a magnet and reed switch, a microprocessor, a LCD display, three push-bottons, a hinged door with a spring cam device that holds the door open and shut, and a replaceable belt hook. The entire unit is powered by an oversized lithium battery that has an expected life of seven years. A unique method of user calibration simplifies user input and provides maximum calibration accuracy regardless of operational or stride artifact variations.

REFERENCES:
patent: 4223211 (1980-09-01), Allsen et al.
patent: 4387437 (1983-06-01), Lowrey et al.
patent: 4741001 (1988-04-01), Ma
patent: 4821218 (1989-04-01), Potsch

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