发明名称 |
SPARE UNIT CHANGEOVER DEVICE |
摘要 |
PURPOSE:To improve the non-defective rate of the titled device by providing flags which hold changeover information of an input data and an output data of a function unit for unit number's share required for the device playing the substantial function and allowing the flag to conduct changeover. CONSTITUTION:When it is known that the k-th function unit 18 is defective, the 1st-(k-1)th flags FLG(1)-FLG(k-1) are brought into the 1st state to select an input at the right side of the corresponding input changeover circuit 18 thereby applying the input to function units F(1)-F(k-1). Then the input at the left side of the corresponding output changeover circuit 19 is selected. The k-th-n-th flags FLG(k)-FLG(n) are brought into the 2nd state, the left side input of the corresponding input changeover circuit 18 is selected to apply the input to function units F(k+1)-F(n+1), and the right side input of the corresponding output changeover circuit 19 is selected. The amount of the hardware is less and the range of defect relieve is wide. |
申请公布号 |
JPS6020658(A) |
申请公布日期 |
1985.02.01 |
申请号 |
JP19830127879 |
申请日期 |
1983.07.15 |
申请人 |
NIPPON DENSHIN DENWA KOSHA |
发明人 |
TAKAHASHI YUKIO;KAWADA TADAMICHI |
分类号 |
H04L1/22;G06F11/20;H04B1/74 |
主分类号 |
H04L1/22 |
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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