Electronic speed measuring device particularly useful as a jogging computer
First Claim
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1. An electronic device for measuring distance traversed by a body in motion per unit time, comprising:
- A. a housing;
B. presetting means carried by said housing for presetting a distance constant corresponding to the distance per increment of the motion;
C. a sensor carried by said housing for sensing each increment of motion and outputting a sensor signal therefor;
D. an electronic display carried by said housing; and
E. an electronic data processor disposed within said housing and including;
(1) a central clock measuring time in a real-time manner,(2) means for storing said preset distance constant,(3) means including said central clock for computing the time intervals between successive sensor signals,(4) means for computing measurements of speed by multiplying said latter time intervals by the stored distance constant(5) and means for feeding said measurements of speed to said electronic display.
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Abstract
An electronic device particularly useful as a jogging computer comprises presetting means for presetting the size of the user'"'"'s step, an inertia sensor sensing each step, a central clock, and a microprocessor computing the user'"'"'s speed and distance travelled, and displaying same on an electronic display. The described device further includes a pacer which produces a tone at a preselected rate to aid the jogger in pacing himself. A second embodiment of the invention is described for attachment to a bicycle for measuring speed and distance travelled of the bicycle.
46 Citations
14 Claims
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1. An electronic device for measuring distance traversed by a body in motion per unit time, comprising:
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A. a housing; B. presetting means carried by said housing for presetting a distance constant corresponding to the distance per increment of the motion; C. a sensor carried by said housing for sensing each increment of motion and outputting a sensor signal therefor; D. an electronic display carried by said housing; and E. an electronic data processor disposed within said housing and including; (1) a central clock measuring time in a real-time manner, (2) means for storing said preset distance constant, (3) means including said central clock for computing the time intervals between successive sensor signals, (4) means for computing measurements of speed by multiplying said latter time intervals by the stored distance constant (5) and means for feeding said measurements of speed to said electronic display. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification