A circuit board design aid is achieved by generating a shield pattern for a wiring pattern including a pattern element in a circuit board by increasing a width of a geometry of the pattern element by an amount corresponding to a shield pattern spacing set as a preset pattern generation condition. The method continues by maintaining a data location table that maps a range of DSN addresses allocated to the storage unit to the memory devices and further records storing of encoded data slices having specific DSN addresses within the memory devices. When a lock release command is inputted to the personal computer, it outputs the ID code and a lock release signal to the printer. Additionally, the speech-processing system translates each of the candidate textual expressions into candidate textual phrases in a second language. By the process, an ammoximation reaction of the ketone can be carried out with a high conversion of the ketone and a high selectivity to the oxime corresponding to the ketone, thereby producing the oxime with a high yield.