| 摘要 |
An improved method for operating a digital data processing apparatus to provide for fault-tolerant actuation of a functional unit in response to an actuation request includes the steps of: providing the functional unit with a switching section that responds to application of plural switching signals for activating the functional unit; providing first and second processing elements, each normally responding to an actuation request for generating a first set of switching signals, the first set of switching signals including at least one, but not all, of the plural switching signals; outputting the first set of switching signals generated by the first processing element for application to the switching section; synchronizing the first and second processing elements by comparing, with the second processing element, the first set of switching signals generated thereby with those output by the first processing element; generating, after synchronization, with each of the first and second processing elements, a second set of switching signals, the second set of switching signals including at least one, but not all, of the plural switching signals, the first and second subsets of switching signals together making up the plural switching signals; and outputting the second set of switching signals generated by the second processing element for application to the switching section. |
