A receive circuit having a sampling circuit and a threshold generating circuit. The sampling circuit generates a first sample value having either a first state or a second state according whether an incoming signal exceeds a first threshold level, the first threshold level corresponding to a first threshold...http://www.google.fr/patents/US7233164?utm_source=gb-gplus-shareBrevet US7233164 - Offset cancellation in a multi-level signaling system
Offset cancellation in a multi-level signaling system
