815-3 Convolution and circuit response in the time domain x() y() When x(), the input to N, is known, and when h(t), the impulse response of N, is known, the y(t), the output or response function, is expressed by y()=x()*M()=x(2)(t-2元=x(t-2)(元§15-3 Convolution and circuit response in the time domain N x(t) y(t) y(t) x(t) h(t) x()h(t )d x(t )h()d 0 0   =  = − = − When x(t), the input to N, is known, and when h(t),the impulse response of N, is known, the y(t), the output or response function, is expressed by