公开(公告)号：US3582548A

公开(公告)日：1971-06-01

申请号：US3582548D

申请日：1968-09-24

申请人： OLIVETTI C & C SPA ING

发明人： GARBERI SERGIO ,  DEFALCO GIAN FRANCO

IPC分类号： H04L1/00 ,  B41B25/24

CPC分类号： H04L1/004

摘要： A parity check device for code combinations comprising a plurality of binary code units. The device includes a plurality of elements which are shiftable between a pair of positions in response to the positioning of a corresponding binary code member. An indicator is provided for signalling whenever the positions of the elements are not in parity with a predetermined code combination. The signal may be given, for example, in response to the presence of an odd (or even as the case may be) number of ones.