The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 21, 1997
Filed:
Sep. 29, 1995
Applicant:
Inventors:
Peter D Rail, Plano, TX (US);
Rene L Alejandro, Plano, TX (US);
Assignee:
Electronic Data Systems Corporation, Plano, TX (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
395612 ; 370259 ;
Abstract
A method for detecting duplicate records generates a checksum (222) for each record and compares the generated checksum (222) to checksums stored in check files (30). In a particular application, a system (10) for processing call detail records utilizes a duplicate check module (28) that detects duplicate records using checksum processing.