Method of filing set-up data for a photo-electric scanner and an apparatus for reading such data in the form of graphs

Claim 1

A method of filing set-up data for a photo-electric scanner incorporating a central processing unit having a memory comprising the steps of: drawing a graph on a sheet of paper on which a coordinate system is defined so that one coordinate X axis corresponds to input data of a memory device while the other coordinate Y axis corresponds to output data stored in said memory device; mounting said graph on a table having coordinate X and Y axes with the origin of said graph defined as the intersection of said coordinate X and Y axes; scanning said graph on said table with a linear image sensor having a scanning line that encompasses and is parallel to the Y axis and moves from said origin of the graph along the length of the X axis, the position of said graph being designated at the intersection of said scanning line with respect to the values of X and associates the values of Y as being the intersection of the values of X with said scanning line, said linear image sensor being capable of transmitting X and Y output signals associated with said X and Y axes; controlling the relative motion between the table and the linear image sensor by way of the central processing unit so that the scanning line is moved from said origin in steps by distances which are directly related to particular X values; and recording in the memory of said central processing unit the Y output signals sent by the linear image sensor at each of the steps in a digital form with the associated X designations of the central processing unit so that a conversion table having characteristics of said graph is recorded in the memory of said control processing unit.

Claim 2

A method of filing set-up data for a photo-electric scanner incorporating a central processing unit having a memory comprising the steps of: drawing a graph on a sheet of paper on which a coordinate system is defined so that one coordinate X axis corresponds to input data of a memory device while the other coordinate Y axis corresponds to output data stored in said memory device; mounting said graph on a table having coordinate X and Y axes with the origin of said graph defined as the intersection of said coordinate X and Y axes; scanning said graph on said table with a linear image sensor having a scanning line that encompasses and is parallel to the Y axis and moves from said origin of the graph along the length of the X axis, the position of said graph being designated at the intersection of said scanning line with respect to the values of X and associates the values of Y as being the intersection of the values of X with said scanning line, said linear image sensor being capable of transmitting X and Y output signals associated with said X and Y axes; controlling the relative motion between the table and the linear image sensor by way of the central processing unit so that the scanning line is moved from said origin in steps by distances which are directly related to particular X values; and recording in the memory of said central processing unit the Y output signals sent by the linear image sensor at each of the steps in a digital form with the associated X designations of the central processing unit so that a conversion table having characteristics of said graph is recorded in the memory of said control processing unit.

Claim 5

An apparatus for reading conversion graphs for use a set-up data for a photo-electric scanner, comprising: a table for mounting a characteristics conversion graph, said table having coordinate X and Y axes with respect to the origin of the graph defined as the intersection of the coordinate X and Y axes; a carriage mounted over said table slidably movable in the X direction according to input signals; a sensor head, including a light source, a linear image sensor having photo-electric means, and a lens for focusing the image of the graph on said linear image sensor, mounted on said carriage movable in such a manner so as to locate a curve or any point position by movement of said linear image sensor over said graph from a position aligned with said origin and parallel to the Y axis in the X direction; and a control means supplying said input signals for controlling the motion of said carriage relative to said table along the X axis from said origin.

Claim 6

An apparatus for reading conversion graphs for use a set-up data for a photo-electric scanner, comprising: a table for mounting a characteristics conversion graph, said table having coordinate X and Y axes with respect to the origin of the graph defined as the intersection of the coordinate X and Y axes; a carriage mounted over said table slidably movable in the X direction according to input signals; a sensor head, including a light source, a linear image sensor having photo-electric means, and a lens for focusing the image of the graph on said linear image sensor, mounted on said carriage movable in such a manner so as to locate a curve or any point position by movement of said linear image sensor over said graph from a position aligned with said origin and parallel to the Y axis in the X direction; and a control means supplying said input signals for controlling the motion of said carriage relative to said table along the X axis from said origin.