System and method for compensating for DS0 timing source transients, such as may occur during a switchover to a new external reference, is described. In one embodiment, an SFI control signal is monitored for embedded frame position information. When the frame position information is initially detected,...http://www.google.com.au/patents/US7209492?utm_source=gb-gplus-sharePatent US7209492 - DSO timing source transient compensation
