DVI native and docking station support for a portable information handling system provides output of display information from a either DVI connector at the portable information handling system housing or from a DVI connector at the portable information handling system docking station. A DVO signal outputs...http://www.google.com.hk/patents/US7624218?utm_source=gb-gplus-share專利 US7624218 - System and method for DVI native and docking support
