Method and device for optical detection of the position of...

Details Method and device for optical detection of the position of... Method and device for optical detection of the position of...

2007-05-22

2007-05-22

Nguyen, Sang H. (Department: 2877)

Optics: measuring and testing

Position or displacement

C356S609000

Reexamination Certificate

active

10481560

ABSTRACT:
The present invention relates to a method and to a device enabling data to be input, and also to an optical system for detecting the position of an article or a member and suitable for being used (or incorporated) in such a method (or device). The technical field of the invention is that of making keyboards and similar devices enabling manual input of data for processing by a digital computer. The method of the invention for determining the position of an article in a zone uses the steps of structuring a neural network by training, applying data to the input of the structured neural network, the data being the result of converting signals delivered by a plurality of detectors sensitive to illumination of said zone, and determining the position of the article in the zone as a function of at least one data item output by the structured neural network.

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