抄録
This paper presents a new procedure for constructing the inverse of linear time-invariant systems described by system matrices of a state-space form using the concept of a system being properly invertible. This procedure has a great generality seen never before, and gives a new insight into the structure of inverse systems. Also, relations between various inverse systems, especially between an L-integral inverse by Sain and Massey and an inverse system by Silverman, become very clear.