US3560925A
Expired / Lapsed
US
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Detection and correction of errors in binary code words
Assignee: Telefunken Patentverwertungs GmbH
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Filing: 1968-03-25
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Granted: 1971-02-02
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Expires: 1988-03-25
Abstract
Abstract A METHOD AND ARRANGEMENT FOR DETECTING AND CORRECTING ERRORS OCCURRING IN CODE WORDS MADE UP OF A DATA CODE AND A TEST CODE, WHICH TEST CODE IS DERIVED BY MULTIPLYING THE DATA CODE BY A SELECTED CODING MATRIX, BY POSED OF THE CODING MATRIX SUPPLEMENTED BY A UNIT MATRIX, POSED OF THE CODING MATRIX SUPPLEMENTED BY A UNIT MATRIX TO DERIVE AN ERROR CODE WHICH WILL EQUAL ZERO ONLY WHEN NO ERRORS APPEAR IN THE RECEIVED WORD, AND BY ADDING A SUCCESSION OF ERROR-CORRECTION WORDS IN A MODULO 2 MANNER TO THE RECEIVED WORD UNTIL PRODUCING AN ADDITION WORD WHOSE ERROR CODE IS EQUAL TO ZERO.
Inventors
- 👤 Horst Ohnsorge
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:19
CPC Classifications
H; H03; H03M; H03M13/00; H03M13/03; H03M13/05; H03M13/13; H03M13/37; H03M13/45; H03M13/451; H03M13/456; H04; H04L; H04L1/00; H04L1/004; H04L1/0056; H04L1/0057
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-01 | 1974-08-03 | 1975-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-01 | 1978-08-03 | 1979-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-01 | 1982-08-03 | 1983-02-02 | $7700.00 | Window Closed / Lapsed |