Abstract:
Through an operation of a debugger 57, a process with respect to certain assumed collaboration is carried out for each module such that breakpoints may be set up at appropriate locations in a program. Executing the program, call relations up to a setup time of a breakpoint are stacked on a call stack. Using the debugger 57, these call relations are stored into a collaboration repository 51. A builder 52 is a means for controlling an overall development environment. This builder 52 may call a debugger 57 or another function 53 for displaying program information that comprises a collaboration matrix 54, a call graph 55, a class browser 56 and the like.
Abstract:
A method for flating the phase characteristic of a differential detection signal in one higher and lower regions thereof relative to its resonance frequency by controlling a differential characteristic. A searching, over a range, which is wider than the width of the flat region, is accomplished prior to phase characteristic being effected thereby discriminating a fundamental resonance frequency. After this discrimination of the fundamental resonance frequency, automatic tracking is effected under stable corrected phase characteristics for the fundamental resonant frequency whereby high electro-mechanical conversion efficiency can be maintained.