Foot measuring apparatus and circuitry to eliminate multiplexes

Details Foot measuring apparatus and circuitry to eliminate multiplexes Foot measuring apparatus and circuitry to eliminate multiplexes

1995-09-11

1998-03-24

Bennett, G. Bradley

Geometrical instruments

Apparel

Footwear

A61B 5103

Patent

active

057299056

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 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.

REFERENCES:
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patent: 3457647 (1969-07-01), Cohen et al.
patent: 4294014 (1981-10-01), Baumann et al.
patent: 5123169 (1992-06-01), White et al.
patent: 5128880 (1992-07-01), White
patent: 5323650 (1994-06-01), Fullen et al.
patent: 5361133 (1994-11-01), Brown et al.

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