Process and device for validating/invalidating a message sent over an information transmission network by means of a response in a communication frame
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United States of America Patent
Stats
-
Feb 27, 2001
Grant Date -
N/A
app pub date -
May 26, 1998
filing date -
May 27, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
This process for validating/invalidating a message (4) sent over a information transmission network between at least two stations connected to said network by means of a response in a communication frame, the message including at least one header field (5) sent by a first station and one data field (6) sent by a second station, is characterized in that the data field (6) includes an end of field marker (7) and a beginning of field marker (8), modified in a manner that respectively corresponds to the beginning and to the end of an operation to update the remainder of the data field (6) carried out by the station concerned, to enable the message (4) to be validated if the two markers correspond and to be invalidated if they do not agree.
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