Interface between busses of different physical layers
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United States of America Patent
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Aug 17, 2010
Grant Date -
Oct 18, 2007
app pub date -
Mar 1, 2006
filing date -
Mar 1, 2006
priority date (Note) -
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Abstract
First and second networks, for example Controller Area Networks (CANs), of different physical layers are interfaced by applying signals of the busses of the two networks to respective transceivers. A dominant state of one of the busses is sensed and data is transferred between the two transceivers in a direction from the dominant bus. The two busses are interfaced by a logic circuit interposed between the transceivers. A control circuit is coupled to the first and second logic units for mutually exclusively activating and deactivating the first and second logic units to control the direction of data transfer between the busses.
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