Coded data generation or conversion – Digital pattern reading type converter – Brush and contacts or conductive pattern
Patent
1990-02-20
1993-10-26
Logan, Sharon D.
Coded data generation or conversion
Digital pattern reading type converter
Brush and contacts or conductive pattern
341 5, 341 6, 36518901, 365118, H03M 122, G11C 1300
Patent
active
052570240
ABSTRACT:
The search position encoder includes a generally planar medium, a search probe and a device for moving the probe generally parallel to the surface of the planar medium, and indexing device for locating the actual position of the probe relative to a fixed location on the generally planar medium. A plurality of gratings consisting of alternating strips of conducting and non-conducting materials are arranged on or adjacent to the medium parallel to orthogonal axes of the medium, and a device for sensing the movement of the probe in a plane parallel to the gratings. The location of the probe may then be determined based upon the sensing of the passage of the probe relative to the gratings.
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Logan Sharon D.
Quan-Scan, Inc.
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