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Improved Vector Generator for Invariant Matrix Transformation

IP.com Disclosure Number: IPCOM000094011D
Original Publication Date: 1966-Apr-01
Included in the Prior Art Database: 2005-Mar-06
Document File: 3 page(s) / 60K

IBM

Related People

Clapper, GL: AUTHOR

Abstract

The arrangement shown is an improved configuration for generating voltage vectors for an invariant matrix transformation. It provides a transformation of inputs from a matrix. The latter has presented to it patterns of varying size and in varying positions with respect to the elements of the matrix which can, for example, be a rectangular matrix made up of a plurality of inputs sensors such as photocells.

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Improved Vector Generator for Invariant Matrix Transformation

The arrangement shown is an improved configuration for generating voltage vectors for an invariant matrix transformation. It provides a transformation of inputs from a matrix. The latter has presented to it patterns of varying size and in varying positions with respect to the elements of the matrix which can, for example, be a rectangular matrix made up of a plurality of inputs sensors such as photocells.

The vector generation rule can be stated as follows. A vector can be drawn from a given occupied point in the matrix to an adjacent unoccupied point if there are two points on either side of the adjacent unoccupied point, which points are both unoccupied and adjacent to the given occupied point, and there is at least one occupied point adjacent to the given occupied point on a line at right angles to the direction of the vector under consideration. Vectors which are generated for the numeral 4 as presented to a rectangular matrix are indicated in A. This drawing shows that the vectors extending from the dots representing input points in the matrix are established in accordance with the rule stated above. This arrangement eliminates end point vectors and isolated points have no vectors.

One implementation of a voltage vector generator for the rule given above, for the configuration of points shown in B, is illustrated in detail in C. For convenience, the points around the given point Pij in B are numbered from 1...8 as shown. The input for the point Pij is on for an active point. The inputs for the surrounding points 1...8 are on for an inactive or empty point. The transformation is accomplished by a matrix of diodes plus four transistors T1...T4, with the diodes at the left-hand portion of C being arranged in groups of four to provide the implementation for the first portion of the rule. An additional diode on each of the vector output generating lines is controlled by one of the respective transistors T1...