Absolute position chain encoder

Details Absolute position chain encoder Absolute position chain encoder

2007-10-30

2007-10-30

Mai, Lam T. (Department: 2819)

Coded data generation or conversion

Digital pattern reading type converter

Having combined coding pattern

C341S010000

Reexamination Certificate

active

11375708

ABSTRACT:
An absolute position encoder for identifying which of a plurality of loci a moveable member occupies comprises a plurality of data tracks in which binary data is encoded to form a series of n-bit words, each of the plurality of loci being associated with one of the n-bit words. A plurality of the n-bit words is required to uniquely determine which of the loci the moveable member occupies. The absolute position encoder does not use a clock track to resolve the problem of asynchronous bit transitions.

REFERENCES:
patent: 4628298 (1986-12-01), Hafle et al.
patent: 4736187 (1988-04-01), Kibrick et al.
patent: 4914437 (1990-04-01), Kibrick et al.
patent: 4947166 (1990-08-01), Wingate et al.
patent: 5117105 (1992-05-01), Nagase et al.

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