Data communication apparatus and method
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United States of America Patent
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Sep 8, 2015
Grant Date -
Sep 15, 2011
app pub date -
Jan 25, 2011
filing date -
Mar 9, 2010
priority date (Note) -
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Abstract
In one embodiment, a data communication apparatus includes a plurality of communications units for performing transmission and reception with the plurality of different networks, a first storage unit which stores a first identifier and a second identifier, a first processing unit which performs network protocol processing with hardware, and a second processing unit which performs network protocol processing with software. The first identifier indicates a communication unit which receives a frame, and the second identifier indicates a communication unit which transmits a frame. The first processing unit stores the first identifier in association with a reception frame in the first storage unit, and the second processing unit reads the first identifier and the reception frame from the first storage unit, generates a transmission frame as a response to the reception frame, stores the first identifier as the second identifier in association with the transmission frame in the first storage unit.
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