| 摘要 |
A waveform generator generates a specified exponential function for converting a position signal corresponding to the position on the screen one by one to a corrected position signal thereby obtaining a waveform with shifted phase near the screen center compared to the original waveform. A conversion unit receives a position signal corresponding to the position on the screen one b y one or the output of a second addition unit, a first addition unit for adding th e output of the conversion means and an offset coefficient, a first multiplication un it for multiplying the output of the first addition unit and a frequency correction coefficient, a second addition unit for adding the position signal P and the output of the first multiplication unit, and a second multiplication means for mult iplying the output of the conversion unit by an amplitude coefficient A. The positio n signal is input to the conversion unit and the first addition unit receives the output of the conversion unit. In the second step, the output of the second additio n unit is input to the conversion unit, and the second multiplication unit receives th e output of the conversion unit.
|
