Patent US3213426A successfully refreshed from Google Patents.
US3213426A
Expired / Lapsed
US
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Error correcting system
Assignee: International Business Machines Corp
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Filing: 1959-09-25
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Granted: 1965-10-19
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Expires: 1979-09-25
Abstract
No abstract record available.
Inventors
- 👤 Constantin M Melas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 06:08
CPC Classifications
H; H04; H04L; H04L1/00; H04L1/004; H04L1/0056; H04L1/0057; H03; H03M; H03M13/00; H03M13/03; H03M13/05; H03M13/13; H03M13/17; H03M13/29
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
209 words
IN COMBINATION WITH AN INFORMATION HANDLING SYSTEM HAVING A SOURCE OF BINARY CODED MULTI-BIT DATA SIGNALS AND A DEVICE FOR UTILIZING SAID SIGNALS, AND ERROR CORRECTING SYSTEM INTERCONNECTING SAID DATA SOURCE AND SAID UTILIZATION DEVICE OPERABLE TO DETECT, LOCATE AND CORRECT A PLURALITY OF DIFFERENT TYPES OF RELATED ERRORS OCCURRING DURING THE TRANSLATION OF SAID DATA SIGNALS TO SAID DEVICE, SAID CORRECTING SYSTEM INCLUDING AN ENCODER, A DETECTOR, AND SIGNAL TRANSLATING MEANS CONNECTED THEREBETWEEN, SAID ENCODER COMPRISING MEANS FOR SUPPLYING TO SAID SIGNAL TRANSLATING MEANS A CODE GROUP SIGNAL CONSISTING OF A PREDETERMINED NUMBER OF DATA BITS, A PREDETERMINED NUMBER OF LOCATOR PARITY BITS AND A PREDETERMINED NUMBER OF ERROR-TYPE PARITY BITS, SAID SUPPLYING MEANS INCLUDING MEANS FOR GENERATING SAID LOCATOR PARITY BITS FROM BIT POSITIONS OF SAID CODE GROUP SIGNAL DETERMINED BY A FIRST M-SEQUENCE AND MEANS FOR GENERATING SAID ERROR-TYPE PARITY BITS FROM BIT POSITIONS DETERMINED BY A SECOND M-SEQUENCE, SAID DECODER COMPRISING MEANS FOR GENERATING RECEPTION PARITY BITS FROM SAID CODE GROUP SIGNAL AS RECEIVED OVER BIT POSITIONS DETERMINED BY SAID M-SEQUENCES, AND MEANS UNDER THE CONTROL OF SAID GENERATED RECEPTION PARITY BITS OPERABLE TO CORRECT ANY ONE OF SAID DIFFERENT TYPES OF RELATED ERRORS PRIOR TO SUPPLYING AN ERRONEOUS DATA BIT TO SAID UTILIZATIN DEVICE.
Claim 2
Dependent Claim
209 words
IN COMBINATION WITH AN INFORMATION HANDLING SYSTEM HAVING A SOURCE OF BINARY CODED MULTI-BIT DATA SIGNALS AND A DEVICE FOR UTILIZING SAID SIGNALS, AND ERROR CORRECTING SYSTEM INTERCONNECTING SAID DATA SOURCE AND SAID UTILIZATION DEVICE OPERABLE TO DETECT, LOCATE AND CORRECT A PLURALITY OF DIFFERENT TYPES OF RELATED ERRORS OCCURRING DURING THE TRANSLATION OF SAID DATA SIGNALS TO SAID DEVICE, SAID CORRECTING SYSTEM INCLUDING AN ENCODER, A DETECTOR, AND SIGNAL TRANSLATING MEANS CONNECTED THEREBETWEEN, SAID ENCODER COMPRISING MEANS FOR SUPPLYING TO SAID SIGNAL TRANSLATING MEANS A CODE GROUP SIGNAL CONSISTING OF A PREDETERMINED NUMBER OF DATA BITS, A PREDETERMINED NUMBER OF LOCATOR PARITY BITS AND A PREDETERMINED NUMBER OF ERROR-TYPE PARITY BITS, SAID SUPPLYING MEANS INCLUDING MEANS FOR GENERATING SAID LOCATOR PARITY BITS FROM BIT POSITIONS OF SAID CODE GROUP SIGNAL DETERMINED BY A FIRST M-SEQUENCE AND MEANS FOR GENERATING SAID ERROR-TYPE PARITY BITS FROM BIT POSITIONS DETERMINED BY A SECOND M-SEQUENCE, SAID DECODER COMPRISING MEANS FOR GENERATING RECEPTION PARITY BITS FROM SAID CODE GROUP SIGNAL AS RECEIVED OVER BIT POSITIONS DETERMINED BY SAID M-SEQUENCES, AND MEANS UNDER THE CONTROL OF SAID GENERATED RECEPTION PARITY BITS OPERABLE TO CORRECT ANY ONE OF SAID DIFFERENT TYPES OF RELATED ERRORS PRIOR TO SUPPLYING AN ERRONEOUS DATA BIT TO SAID UTILIZATIN DEVICE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-10-18 | 1969-04-19 | 1969-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-18 | 1973-04-19 | 1973-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-18 | 1977-04-19 | 1977-10-19 | $7700.00 | Window Closed / Lapsed |