Patent Document ID: 9760548
Application ID: 14361812

Base Claim:
1. A system, process and method for detecting whether content within a given document is common to content within a plurality of other, existing documents, the system, process and method comprising: a character string recognizer for recognizing character strings in the content of the given document; a character string distinguisher for distinguishing main character strings and auxiliary character strings in the recognized character strings by reference to a closed list of main character strings; an encoder for encoding the content of the given document by assigning the main and auxiliary character strings differently using one or more digits; and a matcher for matching a plurality of n-digit streams from within the encoded content with any corresponding n-digit streams within previously-encoded content of the one or more other documents.

---

Claim 13:
13. The system, process and method of claim 1 , wherein the digits comprise binary bits and the encoder encodes the content of the given document in binary code by assigning at least one bit string of one kind to the main character strings and at least one other bit string of other kind to the auxiliary character strings.