| 摘要 |
PURPOSE:To reduce the influence of disturbing noises generated attending upon weight-coefficient control by sequentially controlling the weight coefficient of each weight circuit by reading out a control signal for weight-coefficient control written to a register in the reverse order of write operation. CONSTITUTION:Delay element 11 has taps (t1) to (tn), each of which is applied with the sum signal of input signal Vin, multiplied by a random weight coefficient by weight circuit 12, and a delay circuit. Control signals for the weight-coefficient control of adder circuit 12 is written in sequence to shift register 17. Those written control signals are read out in the reverse order of the write operation, and converted by D/A converter 20 into analog signals, which are applied to weight circuit 12 by way of gate circuit 21, shift register 22 and analog memory 23, thereby controlling sequentially the weight coefficient in the same direction as the signal transmission of delay element 11. |
