发明名称 |
Digital root extraction circuit. |
摘要 |
<p>The invention relates to a root extraction circuit comprising a plurality of n sub circuits, the m<th> sub-circuit thereof consisting of m + 1 add/subtract cells. The two add/subtract cells in each sub circuit which process the least-significant bits in said sub-circuit always receive a logic signal "1" on their "b" data input and always operate as an add cell. The remaining add/subtract cells of an m<th> sub-circuit are controlled by the carry signal output of the add/subtract cell which processes the most-significant bit in the (k-1)<th> sub-circuit. As a result of the foregoing steps, the root extraction circuit requires only add/subtract cells, so that a very regular lay-out pattern can be obtained when the circuit is integrated. </p> |
申请公布号 |
EP0174048(A1) |
申请公布日期 |
1986.03.12 |
申请号 |
EP19850201371 |
申请日期 |
1985.08.30 |
申请人 |
N.V. PHILIPS' GLOEILAMPENFABRIEKEN |
发明人 |
DE TROYE, NICOLAAS CORNELIS |
分类号 |
G06F7/552;(IPC1-7):G06F7/552 |
主分类号 |
G06F7/552 |
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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