Logic circuit diagram editor system

Details Logic circuit diagram editor system Logic circuit diagram editor system

1994-07-07

1996-10-22

Trans, Vincent N.

Boots, shoes, and leggings

364488, G06F 1750

Patent

active

055683975

ABSTRACT:
A logic circuit diagram editor system is used for editing a logic circuit diagram displayed on a CAD system. When a terminal is selected, the logical connection is determined for that terminal with respect to another terminal that is selected. When it is determined that the selected terminals are not the same, the user can input a signal name to be used in common for both terminals. Upon entry of the signal name, the system sets a logical connection between the selected terminals and stores the connection information in memory. If it is determined that an obstruction exists between the selected terminals, or if it is determined that the terminals are on separate pages of a multi-page logic circuit diagram, then each terminal is displayed with the signal name in its vicinity, but the terminals are not shown on the screen to be diagrammatically connected. Also, if a circuit exists between the terminals, then no connection is drawn between them and the terminals are respectively labeled with the signal name. Otherwise, the terminals are shown to be diagrammatically connected by a line and the signal name is displayed between the terminals along the connection.

REFERENCES:
patent: 4970664 (1990-11-01), Kaiser et al.
patent: 5034899 (1991-07-01), Schult
patent: 5038294 (1991-08-01), Arakawa et al.
patent: 5164908 (1992-11-01), Igarashi
patent: 5164911 (1992-11-01), Juran et al.
patent: 5220512 (1993-06-01), Watkins et al.
patent: 5353234 (1994-10-01), Takigami
patent: 5371683 (1994-12-01), Fukazawa et al.

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