Data integrity securing means
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Sep 3, 1991
Grant Date -
N/A
app pub date -
Oct 17, 1988
filing date -
Oct 30, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A process for updating the frame check sequence FCS.sub.r (X) of a digital frame including an embedded variable header polynomial H.sub.r (x), said process including: partitioning H.sub.r (x); XORing the modified polynomial header H.sub.t (x) and previous polynomial header H.sub.r (x) to generate a differential polynomial D(x); computing a differential frame check polynomial sequence dFCS (x) on said D(x) only and adding dFCS (x) to the polynomial FCS.sub.r (x) to form a new FCS.sub.t (x).
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