Decoding device

专利名称：Decoding device发明人：KRANITZKY, WALTER, DR.申请号：EP91111388.4申请日：19910709公开号：EP0467196B1公开日：19951213

摘要：A pseudo-random code PRC of n-bits length, shown diagrammatically in Figure1 on a material measure (1), is read by a detector element (2) having n sampling fields.The signal combination read is supplied to a comparator circuit (3) which compares thisinstantaneous input code with the variable content of a shift register (4). Depending onthe result of the comparison, the content of the shift register (4) and the count of acounter (5) synchronised with the shift register (4) are changed or not changed. Since theshift register (4) and the counter (5) are synchronously controlled, the relation betweenthe content of the shift register (4) and the count of the counter (5) is unambiguous. Theoutput signals of the counter (5) produce the binary code corresponding to the pseudorandom code PRC and thus the absolute position of the material measure (1) relative tothe detector element (2).

申请人：DR. JOHANNES HEIDENHAIN GMBH,HEIDENHAIN GMBH DR JOHANNES,DR.JOHANNES HEIDENHAIN GMBH

地址：DE

国籍：DE

更多信息请下载全文后查看