Measuring device with an integrated light scanning means which s

Details Measuring device with an integrated light scanning means which s Measuring device with an integrated light scanning means which s

1995-06-06

1997-03-18

Le, Que

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

25023117, 235462, G06K 500

Patent

active

056125445

ABSTRACT:
A measuring device with an integrated light beam scanning means for detecting the number of revolutions of a rotating body, contrast-coded data (bar codes) being capable of detection by means of the light beam scanning means. The measuring device includes a selecting means to select the mode of operation consisting of measuring the number of revolutions or detecting data. An analyzing means analyzes signals outputted by the scanning means (1) and automatically selects one of the modes of operation consisting of measuring the number of revolutions and detecting data in dependence on the result of the analysis.

REFERENCES:
patent: 4691112 (1987-09-01), Wydler
patent: 4772254 (1988-09-01), Grassl et al.
patent: 4885707 (1989-12-01), Nichol et al.
patent: 5029034 (1991-07-01), Weiley
patent: 5059901 (1991-10-01), Van Voorhis
patent: 5065017 (1991-11-01), Hoech
patent: 5471054 (1995-11-01), Watanabe

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