Ath system method and apparatus for locating movable objects on a fixed p

摘要: A method and apparatus for locating movable objects on a fixed path. Binary coded markers in pseudo-random sequence positioned along the The sequencing is such that series of different words are formed, each word indicating relative position object. object has detector detecting binary digits successive markers. formed by stored an m-stage shift register. Means included analyzing accuracy If error found, then register not read out to indicator which gives