| 摘要 |
PURPOSE:To diversely vary frequency modulation by variously weighting and putting plural pieces of frequency modulation information together. CONSTITUTION:Modulation data FM1-FM3 of a saw-tooth wave, a saw tooth wave, triangular wave, and a sine wave are multiplied by weighting data WT1-WT3 through multipliers 62, 63, and 64, and added by an adder 65, which outputs the results as composite frequency modulation data SFM. Further, modulation data AM1-AM3, on the other hand, are multiplied by weighting data WT4-WT6 through multipliers 72, 73, and 74 and added by an adder 76, which outputs the results as composite amplitude modulation data SAM. |
