Gray code reader

Communications: electrical – Digital comparator systems

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

340347P, 340347M, G06F 1110, H03K 1334

Patent

active

041737520

ABSTRACT:
An analog to digital convertor for converting mechanical motion to an electric digital signal which includes a code plate carrying gray codes for measuring displacement, codes for parity bits and parity check control bits and gray code reading means and decoder therefore wherein the parity bits detect the occurrence of a readout error and producing a warning signal while the parity check control bits detect an incorrect parity check caused by errors in the sensing operation such as dirt, dust, or damaged sensing elements, and produces a second warning signal, a memory for temporarily storing the output of the decoder and circuitry inter-connected with the memory and decoder to produce a third warning signal when the difference between the outputs of the memory and the decoder is greater than a predetermined value, circuitry for producing a first error signal when only the second warning signal is present and a second error signal when at least the first and third warning signals are present.

REFERENCES:
patent: 3187325 (1965-06-01), Waldhauer
patent: 3594735 (1971-07-01), Furlong
patent: 3913095 (1975-10-01), Dlugos
patent: 3938083 (1976-02-01), Stansfield
patent: 3947843 (1976-03-01), Presentey
patent: 3999064 (1976-12-01), Kramer
patent: 4025914 (1977-06-01), Akita

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Gray code reader does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Gray code reader, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Gray code reader will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-463622

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.