Error detection and correction system

• US 3,200,372 A
• Filed: 07/26/1960
• Issued: 08/10/1965
• Est. Priority Date: 07/26/1960
• Status: Expired due to Term

• Current Assignee: Arthur Hamburgen
• Original Assignee: Arthur Hamburgen
• Inventors: ARTHUR HAMBURGEN
• Application Number:
  US04/045,499
• Time in Patent Office: 1,841 Days
• US Class Current: 714/807
• CPC Class Codes: G06F 11/104 using arithmetic codes, i.e. codes which are preserved during operation, e.g. modulo 9 or 11 check
• CPC Class Codes: G06V 10/98 Detection or correction of errors, e.g. by rescanning the pattern or by human intervention; Evaluation of the quality of the acquired patterns

Claims

6. IN A DATA PROCESSING SYSTEM IN WHICH DATA IS REPRESENTED BY DATA ITEMS ARRANGED IN GROUPS, EACH OF SAID ITEMS HAVING A PREASSIGNED DECIMAL NUMERICAL VALUE, AND EACH OF SAID GROUPS HAVING ASSOCIATED THEREWITH A CHECK ITEM HAVING A DECIMAL NUMERICAL VALUE DETERMINED BY THE UNITS ORDER SUM OF THE NUMERICAL VALUES OF THE DATA ITEMS IN THE CORRESPONDING GROUP, AND IN WHICH SYSTEM AN UNCERTAINING OF ANY ITEM IN A GROUP IS DESIGNATED BY AN UNCERTAINING INDICATION SUBSTITUTED FOR THE UNCERTAIN ITEM, MEANS FOR CORRECTING AN UNCERTAINITY OCCURRING IN ANY ONE OF SAID GROUPS COMPRISING, IN COMBINATION, STORAGE MEANS FOR RECEIVING AND STORING IN SEQUENCE DECIMAL NUMERICAL VALUES OF THE ITEMS IN SAID GROUPS AND UNCERTAINITY INDICATIONS IN EACH OF SAID GROUPS, ADDING MEANS CONNECTED TO SAID STORAGE MEANS FOR ADDING THE SUCCESSIVE NUMERICAL VALUES FOR EACH ITEM IN A GROUP AND FOR SUPPLYING THE COMPUTED UNITS ORDER SUM DIGIT FOR EACH OF SAID GROUPS