Device for providing a modulo-n check character,申请号US19790081217-传众专利搜索

Device for providing a modulo-n check character

申请公布号：US4352096(A)

申请号：US19790081217

申请日期：1979.10.02

申请公布日期：1982.09.28

申请人：

NIXDORF COMPUTER AG

发明人：UNGLAUBE, UWE;MIEHE, FRIEDRICH V.

分类号：G06F11/10;G06C11/00;G06K5/00;G06M3/12;(IPC1-7):G08C9/06;G08B5/00

主分类号：G06F11/10

摘要：Apparatus is disclosed for providing a modulo-n check character as a function of a sequence of data characters. The check character may be used to permit a check of the data character sequence for its correctness, for example, after being transmitted to a data processing installation or after printing. In the preferred embodiments each data character of the sequence is generated by one of a plurality of data character carriers which are selectively set to generate a given character. An additional check carrier is provided to generate the check character. The check carrier is set by a predetermined amount each time one of the data carriers is set so that the ultimately generated check character is a function of the data character sequence.