| 摘要 |
PURPOSE:To obtain desired processing performance with simple and unexpensive constitution by selecting actuators of restricted numbers and performing servo control with time sharing for an actuator group for which servo control is to be performed in parallel. CONSTITUTION:A servo processing circuit 11 is constituted with digital signal processors(DSP), process data of (m) pieces PD2, PD20, PD51,.... are outputted via a time sharing switch 13 of (m) channel based on inputted sensor data of (m) pieces SD2, SD20, SD51, ... and reference data RD2, RD20, RD51, and stored in a processed result register 14 of (m) channel. And since they are supplied to actuators of (n) pieces ACT1-ACTn which drive keys and pedals of (n) pieces, these actuators ACT1-ACTn are controlled by servo. Therefore, even if a DSP for servo control of which processing speed is not so fast and a price is low is used, a servo control device having desired processing performance can be realized. |
