CONTROL SYSTEM FOR COMPUTER CONTROLLED IDENTIFICATION OF BOTTLES

摘要

1521394 Selective signalling POWERS MFG Inc 1 Dec 1976 [2 Dec 1975] 50114/76 Heading G4H A bottle bears a ring of prism-like marks forming a sequence (repeated once) of two relatively-closely-spaced "start" marks and a mold-identifying binary code group, the marks being sensed by laser scanning and evaluated by computer, the evaluation involving timing of leading and trailing edges of the sensor output pulses, calculation of widths and spacings of the pulses, distinguishing of the "start" marks and deduction of the code bits, various statistical counts (relating to bottles identified as defective and bottles from and not from defective molds) being printed out.