Foot measuring apparatus and circuitry to eliminate multiplexes and demultiplexers
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United States of America Patent
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Mar 24, 1998
Grant Date -
N/A
app pub date -
Sep 11, 1995
filing date -
Sep 11, 1995
priority date (Note) -
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status (Latency Note)
Importance
Abstract
The invention pertains to an apparatus for measuring a foot's length and width to correspond to a shoe size and a method to eliminate multiplexers and demultiplexers in circuits. The apparatus is a low profile self-contained apparatus comprising a transducing medium, a microcontroller, a reference impedance element, a signal amplifier, an analog to digital conversion circuit, and a display to generate and display foot sizing data. A microcontroller unit ?is connected directly to the hybrid multiplexing circuit which! contains algorithms which solve a set of linear equations to indirectly determine the electronic image of a foot. The shoe size is then calculated using a sizing algorithm and then displayed on a display which is connected to the output of the microcontroller unit.
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Cited Art Landscape
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