An active terminator is configured with switches to select between terminating two lines for transmitting one differential signal pair or two single ended signals terminated in a pseudo-differential receiver. The receiver circuitry is configured with three differential comparators. One differential comparator...http://www.google.com/patents/US20070290712?utm_source=gb-gplus-sharePatent US20070290712 - Switch selectable terminator for differential and pseudo-differential signaling
