Boots – shoes – and leggings
Patent
1990-02-21
1992-11-17
Trans, Vincent N.
Boots, shoes, and leggings
364490, 364489, 364488, G06F 1560
Patent
active
051649080
ABSTRACT:
For use in generating a schematic diagram in compliance with logic connection informating specifying symbol tags indicative of individual symbols, pin names of the symbols, symbol classifiers for classifying the symbols into a plurality of classes, and signal names corresponding to the pin names, a computer aided design system comprises a group and set determining unit and a signal bundle name determining arrangement. The unit is intermittently used in determining identifier groups, each consisting of the symbol tags indicative of the symbols classified into one of the classes and the signal names corresponding to the pin names of the symbols. The arrangement determines signal bundle names, each in connection with the signal names included in most of the identifier groups and with only one signal name included in other identifier group or groups. When supplied with the signal bundle name or names determined in connection with each identifier group, the unit is used in determining one of identifier sets, each consisting (A) of at least one symbol tag used in each identifier group together with one of the signal bundle names and (B) of one of the symbol classifiers that classifies, into one of the classes, at least one symbol which is used in the identifier group under consideration and has at least one pin name corresponding to the signal name in question. Being operable in a known manner, a placing and routing unit generates the schematic diagram by placing the identifier sets at pertinent places and routing such sets by the signal bundle names.
REFERENCES:
patent: T940020 (1975-11-01), Brechling et al.
patent: 4813013 (1989-03-01), Dunn
patent: 4964056 (1990-10-01), Bekki et al.
patent: 5038294 (1991-08-01), Arakawa et al.
patent: 5065355 (1991-11-01), Hayase
Anjali Arya et al., "Automatic Generation of Digital System Schematic Diagrams", 22nd Design Automation Conference, IEEE, 1985, Paper 24.4, pp. 388-395.
NEC Corporation
Trans Vincent N.
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