Automatic generation system for an additional circuit provided i

Details Automatic generation system for an additional circuit provided i Automatic generation system for an additional circuit provided i

1994-04-13

1997-03-11

Teska, Kevin J.

Boots, shoes, and leggings

364488, 364489, 364491, G06F 1750

Patent

active

056108303

ABSTRACT:
An automatic generation system of an additional circuit provided in a logic circuit design support system includes: a new distributing point extracting unit for extracting points which distribute signals applied by the additional circuit, from data of new logic circuit before new additional circuit is connected; an old distributing point extracting unit for extracting points which distribute signals applied by the additional circuit, from data of old logic circuit before design change; a distributing point comparing unit for comparing distributing points of the new logic circuit with distributing points of the old logic circuit; a connection point corresponding unit for corresponding connections of the additional circuit to the distributing points of the old logic circuit, and connections of the additional circuit to the distributing points of the new logic circuit, regarding the distributing points which coincide between the new and old logic circuit; an additional circuit changing unit for changing a part of the additional circuit of the old logic circuit so as to distribute signals to branch points added in the new logic circuit; and an additional unit for adding the design-changed additional circuit to the new logic circuit.

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Lin et al., "A Fast & Efficient Algorithm for Determining Fanout Trees in Large Networks", 1991 European Design Automation Conference, pp. 539-544.
Singh et al., "A Heuristic Algorithm for the Fanout Problem," 27th ACM/IEEE Design Automation Conference, pp. 357-360.

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