| 摘要 |
<P>PROBLEM TO BE SOLVED: To efficiently perform the debug of a logic circuit by detecting an operation whose failure is highly likely to be generated, and reporting it. <P>SOLUTION: This observation device 20 for inputting a signal to be outputted by an observation object device, and for observing the operation of the observation object device is provided with an output signal acquiring part 100 for acquiring an output signal to be outputted by the observation object device 10, status transition storing parts 102a and 102b for storing the set of the output signals acquired in two or more continuous cycles as the status transition of the output signals, status transition adding parts 110a and 110b for, when the status transition corresponding to the set of the output signals newly acquired by the output signal acquiring part 100 is not stored in the status transition storing parts 102a and 102b, making the status transition storing part additionally store the set of the newly acquired output signals as new status transition and a status transition output part 120 for outputting the status transition of the output signals stored in the status transition storing parts 102a and 102b. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
