Boots – shoes – and leggings
Patent
1994-02-22
1995-09-12
Ramirez, Ellis B.
Boots, shoes, and leggings
364188, 179 18, 341 5, 345179, G08C 2100
Patent
active
054503485
ABSTRACT:
A digitizing device includes a digitizing tablet having, for each of the two coordinate directions, a first grid winding divided into regularly repeated strip conductor groups and a second grid winding divided into regularly repeated strip conductor groups which are offset with respect to each other at different spacings over the entire work surface. A trigger circuit charges the grid windings with periodic signals in a predetermined sequence, the charges following each other essentially without interruption. However, an interruption time period is provided between the end of charging the grid windings for the other coordinate direction and the start of charging of the grid winding for the one coordinate direction. A scanning coil to be placed upon the digitizing table is connected to an evaluating circuit. The evaluating circuit and the trigger circuit galvanically are separated from each other and operate independently of each other. The evaluating circuit determines the start of charging the grid winding for the one coordinate direction from the end of the interruption time period. The evaluating circuit determines the position of the scanning coil upon the digitizing tablet from the phase difference of the signals of the grid windings for the respective coordinate directions.
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Aristo Graphic Systeme GmbH & Co. KG
Choi Kyle J.
Ramirez Ellis B.
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