Multiplex communications – Pathfinding or routing – Switching a message which includes an address header
Reexamination Certificate
2006-10-24
2006-10-24
Nguyen, Steven (Department: 2665)
Multiplex communications
Pathfinding or routing
Switching a message which includes an address header
C370S392000, C714S746000, C714S776000
Reexamination Certificate
active
07126950
ABSTRACT:
A storage circuit defines a first field for storing first header bits of a first payload signal of a first data unit, a second field, and a third field for storing the first payload signal. The first header bits are equal in number to second header bits of a second payload signal of a second data unit. A division circuit divides the first header bits by a generator polynomial to produce a first error check code. The same generator polynomial is used to divide the second header bits to produce a second error check code. A remainder of division of hypothetical header bits by the generator polynomial is summed to the first error check code to produce a sum which is inserted into the second field of the storage circuit. The hypothetical header bits are greater in number than a total number of bits in the first and second fields, so that the first and second data units can be distinguished from each other by different error check results of the first and second data units.
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Henmi Naoya
Murakami Kurenai
Nishihara Motoo
Rokugou Yoshinori
Sasaki Shinobu
Dickstein , Shapiro, LLP.
NEC Corporation
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