Electronic digital logic circuitry – Interface – Current driving
Reexamination Certificate
2008-09-09
2008-09-09
Le, Don P (Department: 2819)
Electronic digital logic circuitry
Interface
Current driving
C326S087000, C326S027000
Reexamination Certificate
active
11538333
ABSTRACT:
A high-speed signaling system with adaptive transmit pre-emphasis. A transmit circuit has a plurality of output drivers to output a first signal onto a signal path. A receive circuit is coupled to receive the first signal via the signal path and configured to generate an indication of whether the first signal exceeds a threshold level. A first threshold control circuit is coupled to receive the indication from the receive circuit and configured to adjust the threshold level according to whether the first signal exceeds the threshold level. A drive strength control circuit is coupled to receive the indication from the receive circuit and configured to adjust a drive strength of at least one output driver of the plurality of output drivers according to whether the first signal exceeds the threshold level.
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Alon Elad
Bessios Anthony
Chen Fred F.
Ho Andrew C. C.
Horowitz Mark A.
Le Don P
Rambus Inc.
Shemwell Mahamedi LLP
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