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Patent Searching and Data


Title:
ANALOG METER DIGITAL CONVERTER
Document Type and Number:
Japanese Patent JPH0636181
Kind Code:
A
Abstract:

PURPOSE: To read the indication of an existing meter and convert into a digital signal by a compact and simple constitution.

CONSTITUTION: The scale plate 12 of a meter is irradiated with light from a lamp 6 installed on the surface of an analog meter 10. The reflected light of this light is detected in a light receiving element 5 arranged continuously relatively to the scale of the meter, the location of an indicator 13 is detected from the difference between the reflectances of the scale plate 12 and the indicator 13, and it is transmitted by converting it into a digital signal.


Inventors:
SANO TOSHIO
Application Number:
JP1992000210691
Publication Date:
February 10, 1994
Filing Date:
July 16, 1992
Export Citation:
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Assignee:
RICOH KK
International Classes:
G08C19/36; (IPC1-7): G08C19/36