Binary coding system

Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system

Patent

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Details

235454, 235466, 235494, G06K 714, G06K 1906

Patent

active

047076127

ABSTRACT:
A three channel, binary coding technique, especially adapted for identifying intermittently, erratically, or continuously moving objects along a linear path (conveyor track, roadway, or the like). Three parallel channels of coded information are each provided with some type of photoelectric, electronic, or mechanical indicating means or indicia representative of one of two logic states, which logic states on each channel change during each successive segment or interval thereon. A change in the timing channel indicates to a sensing means that a new binary bit of intelligence is to be transmitted. The order in which the coding channels change during the succeeding segment then indicate whether the binary bit being generated is a ONE, a ZERO, or in the alternative whether the reading is erroneous or invalid.

REFERENCES:
patent: 4172554 (1979-10-01), Clarinval et al.

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