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CAD apparatus, method and computer product for designing printed circuit board

A technology for designing circuits and computers, which is applied in the field of computer-aided design devices and can solve problems such as not improving the efficiency of designing printed circuit boards.

Inactive Publication Date: 2008-06-11
FUJITSU LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] These conventional techniques improve the efficiency of inspection operations performed after substantially completing the design of the printed circuit board to be connected via the connector; however, these techniques do not improve the efficiency of designing the printed circuit board itself

Method used

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  • CAD apparatus, method and computer product for designing printed circuit board
  • CAD apparatus, method and computer product for designing printed circuit board
  • CAD apparatus, method and computer product for designing printed circuit board

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Embodiment Construction

[0038] Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0039] The embodiment of the present invention will be described by taking the printed circuit board (PCB) 11 shown in FIG. 1 as an example. The printed circuit board 11 is a back wiring board (BWB) for connecting the printed circuit boards 12 and 13 to each other, and includes connectors CN1 and CN2. The connectors CN1 and CN2 each include 10 pins A1 to A10. Among the pins A1 to A10 of the connectors CN1 and CN2, groups of pins having the same pin name are connected via signal lines with net names D1 to D10.

[0040] The printed circuit board 12 has a predetermined function, and includes a connector CN1 to be connected to the connector CN1 of the printed circuit board 11 . The connector CN1 includes 10 pins A1 to A5 and B1 to B5.

[0041] The pins A1 to A5 are connected to an integrated circuit (IC) 12a via components such as resisto...

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Abstract

The present invention provides a CAD apparatus for designing printing circuit board, method and a computer prodcut.In a computer aided design (CAD), apparatus, an editing unit displays an editing screen for editing a circuit diagram. An association-data acquiring unit acquires association data that defines an association between a first pin of a first connector included in the circuit diagram being edited on the editing screen and a second pin of a second connector to be connected to the first connector. An attribute display unit acquires, when the first pin is specified on the editing screen, attribute information of the second pin associated with the first pin based on the association data, and displays the attribute information.

Description

technical field [0001] The present invention relates to computer aided design (CAD) apparatus, methods and computer products for designing printed circuit boards. Background technique [0002] Electronic circuits for controlling information processing devices, communication devices, etc. generally include a plurality of printed circuit boards connected to each other via connectors. The design work of such an electronic circuit requires checking whether signals are correctly assigned to pins of the connector by comparing multiple pieces of design information of the printed circuit board. [0003] In order to easily and reliably perform this checking operation, some conventional techniques have been proposed. For example, Japanese Patent Application Laid-Open No. 8-69486 discloses a connector information checking device. The connector information checking device reads attribute information of connector pins and signals from a circuit diagram file of a printed circuit board a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F17/5045G06F30/30
Inventor 熊谷善友
Owner FUJITSU LTD
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