A memory module includes a signal line to carry a signal that traverses the signal line until reaching a termination at an end of the signal line. The module includes a clock line to carry a clock signal that traverses the clock line alongside the signal until the signal reaches a second termination...http://www.google.de/patents/US7523247?utm_source=gb-gplus-sharePatent US7523247 - Memory module having a clock line and termination
