Method and device for the acquisition and treatment of written data

Abstract

Abstract 1. Reading method of the direct optical detection type for the acquisition and processing of data traced in uncoded form by means of a writing instrument known per se on any support of which the appearance is contrasted with respect to the trace, characterised in that the significance of the trace is determined whilst its course is developed, by plotting particular characteristic points of the trace determined by optical intersection of this trace and of at least one of several detection lines, and this as often as an intersection occurs, even if the relevant part of the trace had already been intersected by a detection line, that a so-called "individual" and unchangeable code is allocated to each detection line, that the individual code of a line is recorded every time the same undergoes and optical intersection, that a succession or sequence of individual codes is stored until its completion which is determined by an interruption of the trace during a period exceeding a preset time, that a so-called "overall" code is allocated to each possible sequence, independently of the order in which the trace is generated, that each of the successive overall codes is fed into a computer of any known kind at the end of their period, and finally, that the result of the processing of the overall codes performed by the computer by means of an invariable internal program controlled by particular sequences corresponding to intelligible marks of the trace is translated into uncoded form visually and/or phonetically.

Inventors

• 👤 Dominique Serina

Bibliographic Details