摘要:
When a component is placed on a circuit board, a placement position is determined by method of elastic center. Then, it is determined whether the component was placed on the circuit board. After that, connectors are routed between the component and a design candidate component which is already placed. After that, the next component is set, and the above mentioned packaging processing is repeated.
摘要:
According to the printed-circuit board of the preset invention, the circuit modification unit 120 adds a noise reduction component, based on circuit board information inputted to the design information input unit 106. Then, the layout unit 132 sets a layout after the design rule generation unit 133 generates a design rule. The rated value modification unit 124 determines rated values of noise reduction components in accordance with the layout. Thus, design rule generation, noise reduction component addition, and rated value determination are automatically performed to satisfy the electric characteristics of evaluation targets. Consequently, interactive process in designing is reduced and the efficiency of designing can be realized.
摘要:
A layout designing apparatus for circuit boards including a mother board and a substrate which comprises a layout data storage unit for having areas to store data; an operation unit for giving directions; a mother board setting unit for creating the data about the mother board in the layout data storage unit according to the operation unit; a substrate placement unit for creating the data in the layout data storage unit according to the operation unit so that the substrate of a given configuration is placed on a given place on the mother board; a component placement unit for creating the data in the layout data storage unit according to the operation unit so that components of given configurations are placed on given places on the mother board and on the substrate; a routing unit for creating the data in the layout data storage unit according to the operation unit so that routing paths of given configurations are laid out on the mother board and on the substrate; a display unit; and a layout data display control unit for controlling the display unit to display configurations and places of the mother board, the substrate, components and routing paths as created.
摘要:
A design aiding apparatus and a method, and a storage medium storing a design aiding program enable the efficient layout design of components in a multilayer wiring board formed by laminating a plurality of wiring layers. The design aiding apparatus includes (a) a first acquiring unit for acquiring information showing a first location in a lamination direction of the wiring layers, (b) a second acquiring unit for acquiring information showing a second location on a two-dimensional plane that is orthogonal to the lamination direction, and (c) a placement unit for generating information showing a space to be occupied when the component is placed in such a manner that a placement reference point of the component coincides with the second location that is on the two-dimensional plane including the first location. According to the above construction, the present invention is capable of aiding layout design of components in the wiring board.
摘要:
An air conditioning apparatus having a cold accumulating cycle including a first compressor, a first condensor, a first decompressing mechanism and a heat accumulator and a refrigerating cycle including a second compressor, a second condensor, a second decompressing mechanism and an evaporator, wherein the heat accumulating cycle and the refrigerating cycle are provided independently of each other and in that a cooling device using the evaporator as cooling means serves for cooling by utilizing heat accumulated in the heat accumulator thereby constituting a cold transfer circuit.
摘要:
In a pattern generating system for scanning a pattern on a surface of a workpiece with a laser beam modulated by drawing data so as to form a pattern corresponding to design pattern data, a plurality of through holes are formed at predetermined positions of the workpiece. Beams transmitted through the through holes are directed to a sensor for generating a detection output representing positions of the transmitted beams. A computer generates position data of the through holes on the basis of the detection output and calculates a positional error and a deformation amount of the workpiece. A correcting device corrects the drawing on the basis of the positional error and the deformation amount.
摘要:
In a copying machine, a predetermined part of image data read out of an original by an original reader is extracted and is temporarily stored as variable data to be edited in a first memory, while fixed data necessary for forming documents from the original are stored in a second memory, and data read out of the memories and new data inputted additionally by a data generator are combined selectively under the control of a control system to form the documents.
摘要:
An actuating device for a motor used in a power window of an automobile which can drive the motor reliably to open the window even when the automobile is submerged in water. This device has a simple configuration is relatively small and inexpensive. This activating device comprises a drive circuit for a motor which has first and second relays to allow electric current to flow so as to drive the motor in either the forward or reverse direction. The contact of the second relay, which drives the motor in one direction, is used in such a way that the contact forms a part of an electronic circuit for the magnetic coil of the first relay. When the second relay operates, the electric circuit for the magnetic coil of the first relay is closed off. This activating device can ensure that a power window will be opened even if the automobile is submerged, and the first and second relay are switched ON at the same time.
摘要:
An apparatus for loading a planar subject at a predetermined position has holding means operative to hold one one of the planar subject at a predetermined level, and regulating means for detecting the thickness of the planar subject from the amount of operation of the holding means and regulating the level of the other end of the planar subject. This loading apparatus is suitably used in a pattern depicting apparatus.
摘要:
The present invention relates to 1-(2-deoxy-2-fluoro-4-thio-beta-D-arabinofuranosyl)cytosines having excellent antitumor activity, represented by formula [I]: ##STR1## wherein R represents a hydrogen atom or a phosphoric acid residue, and to a process for the production and use thereof.