Position encoder utilizer special gray code

Details Position encoder utilizer special gray code Position encoder utilizer special gray code

1990-10-31

1991-09-17

Pellinen, A. D.

Coded data generation or conversion

Digital pattern reading type converter

Having combined coding pattern

341 13, 341 2, H03M 124, H03M 128

Patent

active

050498797

ABSTRACT:
A position encoder includes a plurality of encoded elements or disks, each of which has indicia representative of a bit of a five bit digital word of a Gray code. Each disk is mechanically coupled to a lever or movable member. A sensor is positioned adjacent to each disk so that the sensors produce digital signals in response to the indicia. The indicia are arranged so that if only one bit of any word is changed, then the modified word will either be a) identical to a word representing an adjacent position of the lever, or b) different from all the words which represent lever positions.

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patent: 4901072 (1990-02-01), Fox

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