Position detector utilizing gray code format

Details Position detector utilizing gray code format Position detector utilizing gray code format

1988-02-17

1990-02-13

Shoop, Jr., William M.

Coded data generation or conversion

Digital pattern reading type converter

Having combined coding pattern

341 2, 341 13, 341 15, H03M 124

Patent

active

049010727

ABSTRACT:
A position detector is provided with an encoded element having indicia representative of a bit pattern of a pair of bits of a Gray code and a pair of sensors responsive to this indicia. The encoded element is capable of being mechanically coupled to a movable member and the sensors are spaced apart by a distance corresponding to a shift in the bit pattern between two bits of the Gray code such that movement of the encoded element past the sensors is used to produce two bits of the Gray code. Additional encoded elements and sensors are used to produce additional bits of the Gray code.

REFERENCES:
patent: 4345240 (1982-08-01), Amano et al.
patent: 4382250 (1983-05-01), Radaelli
patent: 4443788 (1984-04-01), Breslow
patent: 4445110 (1984-04-01), Breslow
patent: 4465928 (1984-08-01), Breslow
patent: 4604725 (1986-08-01), Davies et al.
patent: 4606008 (1986-08-01), Wason
patent: 4621256 (1986-11-01), Rusk
patent: 4628298 (1986-12-01), Hafle et al.
patent: 4766359 (1988-08-01), Smith et al.

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