A selectable low power signal line (10) is provided that includes a driver circuit (12) connected to receive an input signal for transmission and to receive a mode select signal (SELECT). The driver circuit (12) has a low power mode and a full power mode selectable responsive to the mode select signal...http://www.google.ca/patents/US5939923?utm_source=gb-gplus-sharePatent US5939923 - Selectable low power signal line and method of operation
