Patent Document ID: 4490811
Application ID: 06331631
Patent Flag: 1

Claim One:
1. An indicia string comparator circuit for providing a numeric measurement of the degree of indicia string similarity between a record indicia string and a query indicia string, comprising; first means including an output for presenting record string indicia and query string indicia alternately and for presenting control information at said output, said first means connected to a digital source of record string indicia and query string indicia, read/write memory operably connected to a second means, said second means having an input operably connected to said output of said first means, said second means having an output, said second means for reading from and writing to said read/write memory and for indicating at said output of said second means common portions of the indicia strings by generating control signals based on indicia counts, and third means includes an input and output, said input of said third means connected to said output of said second means, said third means for computing a numeric measurement of the weight of the common portions of the indicia string, and for presenting a digital signal representing said numeric measurement at said output of said third means.