Method and system for the iterative and simultaneous comparison of data with a group of reference data items

A processing system for the iterative and simultaneous comparison of a flow of data, received from a source in serial mode per data element of a predetermined size, with a set of reference logical entities, comprising:

• first storage means (1) for storing reference logical entities, having as many locations as there are data elements of said predetermined size in a reference logical entity of a predetermined nominal maximum length, each location comprising a plurality of ordered storage elements, able respectively to contain one data element of different stored logical entities, and having a read-out output (6);
• writing means (16) for entering a set of reference logical entities in said first storage means with the data elements of said reference logical entities in sequential order in respective locations of said first storage means, beginning with the first of said locations;
• reading means (5) for controlling the read-out output of said first storage means for sequentially causing said first storage means to read out its contents location by location in location sequence in a non-cyclic manner;
• first logic means (2) for performing simultaneous and independent comparison of each received data element with the data elements read out of a single storage location by said read-out output of said first storage means;
• second logic means (3,4;
• 25) having temporary output storage means and having an input connected to the output of said first logic means (2) for combining the output of said first logic means with the contents of said output storage means and then substituting the result of the combination into said output means without further combination prior to performance of another comparison in said first logic means (2), and
• control logic means (19), responsive to timing signals derived from said source during flow of data elements therefrom, for generating the signals necessary to initialize and control said logic means, reading means and storage means.

A processing system for the iterative and simultaneous comparison of a flow of data, received from a source in a serial mode per data element of a predetermined size, with a set of reference logical entities, comprising:

• first storage means (1) for storing reference logical entities, having as many locations as there are data elements of said predetermined size in a reference logical entity of a predetermined nominal maximum length, each location comprising a plurality of ordered storage elements, able respectively to contain one data element of different stored logical entities, and having a read-out output (6);
• writing means (16) for entering a set of reference logical entities in said first storage means with the data elements of said reference logical entities in sequential order in respective locations of said first storage means, beginning with the first of said locations;
• reading means (5) for controlling the read-out output of said first storage means for sequentially causing said first storage means to read out its contents location by location in location sequence in a non-cyclic manner;
• logic means (30) having an output register (4) and having three data inputs respectively connected to said data source, the read-out output of said first storage means and said output register, for performing simultaneous and independent comparison of each received data element with the data elements read out from said first storage means, and combining the results of said comparison with the previous contents of said output storage means and then storing the result of said combination in said output storage means without further combination prior to reception of another data element at its data input connected to said source, and
• control logic means (19), responsive to timing signals derived from said source during flow of data elements therefrom, for generating the signals necessary to initialize and control said logic means, reading means and storage means.