Fujitsu Corporation

Eiichi Konno

Toshiyasu Sakata

Kazunori Kumagai

Takahiko Orita

Yoshitaka Nishio

Takao Yamaguchi

Ikuo Ohtsuka

Tomo Kaniwa

Yukihiko Onishi

Touru Kumada

Akihiko Suehiro

Isamu Maejima

Takashi Mori

Yusuke Kimura

Motoyuki Tanisho

Manabu Nakagawa

Taketsugu Kawamichi

Tohru Kumada

A client accepts operation information for operating a circuit design CAD tool. The client transmits the accepted operation information to an application server. The application server receives the transmitted operation information. The application server generates a result screen representing a result of operating an implementation design CAD tool according to the received operation information. The application server transmits the generated result screen to the client.

Link system, link program, and link method

A non-transitory computer-readable recording medium having stored therein a program for causing a computer to execute a process is provided. The process includes calculating and outputting difficulty degrees on an index basis when a change instruction to change an arrangement of parts is received with respect to parts and wirings on a substrate in a design diagram, the difficulty degrees being related to the wiring between the parts after the change according to the change instruction; and calculating and outputting difficulty degrees on an index basis when a change instruction to change the wiring between the parts is received, the difficulty degrees being related to the wiring between the parts after the change according to the change instruction.

Support apparatus and design support method

A wiring-design aiding method for causing a computer to execute generating paths for buses so that the buses do not cross each other with respect to a wiring area including at least one wiring layer, the paths being represented by corresponding graphics The computer further executes verifying, for each bus, whether wires for nets belonging to the bus are successfully extracted from a component to which the bus is connected; and recording, in the wiring area, graphics representing the nets belonging to a bus for which it is determined in the verification that all the nets belonging to the bus are successfully extracted. The bus-path generation is re-executed with respect to the bus for which it is determined in the verification that at least one of the nets is not successfully extracted.

Method, program, and apparatus for aiding wiring design

A circuit board design aid is achieved by generating a shield pattern for a wiring pattern including a pattern element in a circuit board by increasing a width of a geometry of the pattern element by an amount corresponding to a shield pattern spacing set as a preset pattern generation condition. A prohibition region is generated based on a geometry of an element for which a clearance check is to be performed located around the wiring pattern and a clearance condition between the element for performing a clearance check and the wiring pattern. Then, the shield pattern is generated by excluding the geometry of the prohibition region from the geometry of the basic shield pattern element.

Shielded pattern generation for a circuit design board

A wiring design apparatus for designing a plurality of wiring lines of a printed circuit board including a plurality of connection posts arranged in a matrix, includes a processor, the processor providing an orthogonal grid including a plurality of rows and columns running over and between the connection posts, providing a plurality of diagonal paths each connecting at least one of the rows with at least one of the columns each running between each of adjacent pairs of the connection posts, and determining a route for each of the wiring lines by exclusively allocating to each of the wiring lines a selected part of the rows, the columns and the paths so that the selected part connects both ends of each of the wiring lines.

Wiring design apparatus and method

When a formed position of a via formed on a board is the same as a position of a footprint of a chip component located on the back surface of the board corresponding to an area on which a BGA is mounted, a board designing apparatus determines that the chip component and the BGA can be connected using chip on hole. When it is determined that the chip component and the BGA can be connected, the board designing apparatus carries out chip on hole by forming a via in an area of the board on which the BGA is mounted, the via leading to the footprint of the chip component located on the back surface of the board.

Leading wiring method, leading wiring program, and leading wiring apparatus

A computer-readable medium storing a design program causing a computer to execute a process is provided. The process includes virtually routing, when routing of a wire to be connected between a first component and a second component at least one of which includes a swapping pin is being designed, the wire to be connected between a first pin of the first component and a first counterpart pin of the second component such that implementation of an actual routed wire connected therebetween is secured regardless of a net allocated to the swapping pin, and swapping one of the virtually routed first pin and the virtually routed first counterpart pin with the swapping pin such that the net allocated to the swapping pin is identical to a net allocated to the other one of the virtually routed first pin and the virtually routed first counterpart pin.

Apparatus, design method and recording medium

A device includes a definition unit which defines a directional graph having a grid point as a node and a line connecting adjacent grid points as a branch, a generation unit which sets a branch connecting a grid pointing a wiring prohibited area in the branches of the directional graph to the capacity of '0', and which sets another branch to the capacity of '1', and which connects the starting point or the end point to each grid point of the wiring terminal indicated by wiring information, thereby generating a flow network, a search unit which searches the flow network for a path of a flow having the maximum amount of flow from the starting point to the end point, and a determination unit which determines a wiring path connecting the grid point indicated by the wiring information according to the search result of the path.

Wiring design support device and wiring design supporting method

A wiring design device to conduct wiring design on a printed wiring board that includes a plurality of conductive layers, the wiring design device including: noise contaminating part extracting means for extracting a part in a condition where noise contaminates a signal, the part being on a wiring-designed line, based on a route of the line and a physical condition around the route; route modification processing means for modifying the route of the line by moving the extracted part on the line in the condition where noise contaminates the signal to a position that avoids the condition where noise contaminates the signal; and line length adjusting means for conducting a line length adjustment on the line to compensate for a variation of the line length of the line when the variation of the line length of the line occurs due to modifying the route of the line.

Wiring design device, method and recording medium

A wiring design apparatus includes a first acquirer that acquires a first wiring block whose region has a maximum number of crossings with regions of other wiring blocks from printed circuit board data of a printed circuit board having a plurality of wiring blocks with a specific region on a wiring layer, a second acquirer that acquires second wiring blocks whose region does not cross the first wiring block from the printed circuit board data, and a wiring execution requester that causes a wiring processor to perform wiring processing on the first wiring block and the second wiring blocks in parallel.

Wiring design apparatus

A printed circuit board design assisting method, device and storage medium are provided. The assisting method includes referring to the position of terminals of a grid array package part, and attributes indicating whether each of the terminals is a power source terminal or a ground terminal, and selecting the power source terminals as a terminal to be researched, searching for a new connection path between the terminal which has been selected, and one of the ground terminals, by way of a first decoupling capacitor, determining whether there is duplication of paths between the new connection path and an connection path between the terminals connected by way of a second decoupling capacitor, changing the position of the second decoupling capacitor if duplication is detected, and re-searching a connection path between the terminals by way of the second decoupling capacitor, which is not in duplicate with the new connection path.

Printed circuit board design assisting method, printed circuit board design assisting device, and storage medium

A wiring processing apparatus decides each group formed by sorting signals that flow between component pins. Then, the wiring processing apparatus reads printed circuit board data and identifies a net cluster that belongs to each group. After a net cluster that belongs to each group is identified, the wiring processing apparatus refers to the printed circuit board data about the identified net cluster, and automatically creates each wiring route that indicates a wiring scanning area of the signal cluster in each group. Thus the wiring processing apparatus displays them on the printed board data. After the wiring route is automatically created, the wiring processing apparatus automatically creates wiring route information that corresponds to each wiring route, and controls them according to each wiring route.

Wiring path information creating method and wiring path information creating apparatus

A wiring design processing method is for designing an automatic wiring processing process as an execution sequence of various processing in automatic wiring processing for printed circuit boards by using a computer. The wiring design processing method includes storing, in a storage unit, printed circuit board information including various physical information regarding the printed circuit boards, for each of the printed circuit boards; creating an automatic wiring processing process automatically according to a result of analyzing setting, wiring progress, and wiring situation at present regarding each of the printed circuit boards, after reading the printed circuit board information, stored in the storage unit at the storing, for each of the printed circuit boards; and executing the automatic wiring processing according to the automatic wiring processing process created at the creating, for each of the printed circuit boards.

Wiring design processing method and wiring design processing apparatus

A layout-model creating apparatus creates a layout-model for a mechanical computer-aided design from component information including heights and layout information of components created by an electrical computer-aided design. A height determining unit determines whether a height of a component is equal to or lower than a specified height. A three-dimensional-model creating unit creates a three-dimensional model by excluding a component of which the height is determined to be equal to or lower than the specified height.

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Kawasaki, Japan

Eiichi Konno