High speed signaling system with adaptive transmit pre-emphasis

Details High speed signaling system with adaptive transmit pre-emphasis High speed signaling system with adaptive transmit pre-emphasis

2008-09-08

2010-02-02

Le, Don P (Department: 2819)

Pulse or digital communications

Synchronizers

Synchronizing the sampling time of digital data

C370S464000, C326S038000

Reexamination Certificate

active

07656981

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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