Optical sensing system using multiple detectors at various posit

Coded data generation or conversion – Digital pattern reading type converter – Having combined coding pattern

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341 1, 341 8, 341 9, 341 13, 341 15, H03M 122

Patent

active

061008222

ABSTRACT:
The present invention discloses an optical sensing system which uses a plurality of detectors installed at various positions next to an optical panel to generate a position signal for indicating the position of the optical panel. The optical sensing system has an optical panel having a plurality of sensing areas each having a plurality of encoding holes arranged in a predetermined direction, a sensing device having a plurality of detectors for detecting movements of the optical panel corresponding to the sensing device, each of the detectors being corresponded to one of the sensing areas of the optical panel for detecting movements of the encoding holes along the predetermined direction and generating correspondent sensing signals, and a control circuit electrically connected to the sensing device for collecting the sensing signals generated by the detectors of the sensing device to form a position signal so as to indicate the optical panel's position.

REFERENCES:
patent: 4947166 (1990-08-01), Wingate et al.

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