A timing system is disclosed that responds to pattern generation circuitry for producing test patterns for application to a device-under-test. The timing system includes a timing memory circuit that stores programmed edge timings for the patterns and couples to timing logic including a master oscillator...http://www.google.com.au/patents/US6553529?utm_source=gb-gplus-sharePatent US6553529 - Low cost timing system for highly accurate multi-modal semiconductor testing
