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US3566352A Expired / Lapsed US ⏱️ 0.0 years remaining

Error correction in coded messages

Assignee: Motorola Solutions Inc
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Filing: 1968-09-04
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Granted: 1971-02-23
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Expires: 1988-09-04
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Abstract

Abstract ERROR CORRECTION IN CONVOLUTIONALLY CODED MESSAGES, USING A PLURALITY OF INFORMATION DIGIT STREAMS AND A SINGLE PARITY DIGIT STREAM WITH EACH INFORMATION DIGIT BEING INCLUDES AS A COMPONENT IN THE DEFINING SUMMATION FOR EXACTLY TWO PARITY DIGITS SPACED APART BY A CERTAIN NUMBER OF TIME INTERVALS 7 A TIME INTERVAL BEING DEFINED TO INCLUDE A DIGIT FROM EACH STREAM), THE TIME INTERVAL SPACING BETWEEN THE TWO PARITY DIGITS BEING THE SAME FOR EACH INFORMATION DIGIT IN A GIVEN STREAM BUT DIFFERENT FOR EACH STEAM, THE SPACING BEING LONGER THAN THE DESIGN CORRECTABLE BURST LENGTH BUT SHORTER THAN TWICE THE DESIGN CORRECTABLE BURST LENGTH FOR ALL BUT AT MOST ONE OF THE INFORMATION DIGIT STREAMS.

Inventors

  • 👤 James Lee Massey

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-24 12:34
CPC Classifications
H; H04; H04L; H04L1/00; H04L1/004; H04L1/0056; H04L1/0059

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) 1974-02-22 1974-08-24 1975-02-23 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1978-02-22 1978-08-24 1979-02-23 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1982-02-22 1982-08-24 1983-02-23 $7700.00 Window Closed / Lapsed

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