发明名称 |
DIGITALER WORTGENERATOR ZUR AUTOMATISCHEN ERZEUGUNG PERIODISCHER DAUERZEICHEN AUS N-BIT-WOERTERN ALLER WORTGEWICHTE UND DEREN PERMUTATIONEN |
摘要 |
<p>For imitating periodic signals occurring in digital transmission systems during some operating conditions in view of the multiplex structure a word generator is proposed which includes a read-only memory from which during a test signal cycle only 4116 permutations are successively read out of a total of 65,536 possible word sizes and permutations of e.g. a 16-bit word. The remaining 61,420 permutations are generated by shifting bit-by-bit the entire packet of continuous signals so that in case of a fixed 16 bit pattern the packet starts at a different bit position during each successive cycle and after 16 cycles all 16 bit positions occur as begin state. The shift is caused by a framing bit sequence which determines the test signal cycle and whose length is aliquant to n=16.</p> |
申请公布号 |
DE3513551(A1) |
申请公布日期 |
1986.10.16 |
申请号 |
DE19853513551 |
申请日期 |
1985.04.16 |
申请人 |
WANDEL & GOLTERMANN GMBH & CO |
发明人 |
GELBRICH,HANS-JOACHIM,DIPL.-ING.;LEHMANN,ERWIN,DIPL.-ING. |
分类号 |
G01R31/3181;G06F7/58;H04L1/24;(IPC1-7):H03K3/64;G06F1/02;G01R31/28;H04L1/20 |
主分类号 |
G01R31/3181 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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