摘要:
According to an aspect of an embodiment, a method of designing an analog circuit may include selecting multiple analog components for a circuit. The method may also include ordering the analog components. The method may also include determining at least one pareto-optimal design point for a parameter of each analog component. The pareto-optimal design point for each analog component may be based on a performance metric, the parameter for the respective analog component, and constraints resulting from pareto-optimal design points for analog components ahead of the respective analog component within the ordering of the analog components.
摘要:
In one embodiment, creating a layout for a Printed Circuit Board (PCB) by creating n boundary lines at n locations, respectively, on the PCB and placing n sets of electronic components on the n boundary lines, respectively; and iteratively adjusting and evaluating the layout of the PCB until a set of layout requirements for the PCB has been satisfied.
摘要:
In one embodiment, creating a layout for a Printed Circuit Board (PCB) by creating n boundary lines at n locations, respectively, on the PCB and placing n sets of electronic components on the n boundary lines, respectively; and iteratively adjusting and evaluating the layout of the PCB until a set of layout requirements for the PCB has been satisfied.
摘要:
A delay distribution of a partial path that passes through a node to which a plurality of signals is input and for which an estimation in a statistical MAX is predicted to be large, that is present on a critical path having large influence on a circuit delay, and that has high possibility of improving the circuit delay, among nodes in a circuit graph is calculated by the Monte Carlo simulation instead of the block based simulation, thereby increasing speed and accuracy of delay analysis.
摘要:
A delay distribution of a partial path that passes through a node to which a plurality of signals is input and for which an estimation in a statistical MAX is predicted to be large, that is present on a critical path having large influence on a circuit delay, and that has high possibility of improving the circuit delay, among nodes in a circuit graph is calculated by the Monte Carlo simulation instead of the block based simulation, thereby increasing speed and accuracy of delay analysis.
摘要:
A method for estimating a man-hours of an entire project having a series of tasks with a computer includes, inputting an estimated man-hours of the each task, acquiring model functions for extracting estimation errors included in the estimated man-hours of the each task based on an attribute of a worker who performs the each task, calculating a probability density distribution representing estimation errors depending on the attribute and a probability density distribution representing modeling errors depending on methods for estimating the man-hours for each task using the model functions, calculating man-hours of the entire project having a series of tasks for the each task using statistical methods to accumulate the probability density distribution representing estimation errors and the probability density distribution representing the modeling errors, and outputting calculating results of man-hours of the entire project to a output device.
摘要:
A delay analysis support apparatus that supports analysis of delay in a target circuit includes an acquiring unit that acquires error information concerning a cell-delay estimation error that is dependent on a characterizing tool; an error calculating unit that calculates, based on the error information and a first probability density distribution concerning the cell delay of each cell and obtained from the cell delay estimated by the characterizing tool, a second probability density distribution that concerns the cell-delay estimation error of each cell; and an linking unit that links the second probability density distribution and a cell library storing therein the first probability density distribution.
摘要:
A control apparatus for an automatic transmission includes a control section having a target secondary pressure setting section configured to set a target secondary pressure within a strength limit of the belt, and an operation switching section configured to switch a shift operation from a normal speed to a high speed higher than the normal speed when a predetermined condition is satisfied. The control section is configured to control the secondary pressure regulating valve by a feedback control based on the target secondary pressure and the actual secondary pressure sensed by the hydraulic pressure sensor. The target secondary pressure setting section is configured to modify the target secondary pressure by adding a predetermined quantity when a correction initiation condition is satisfied, the condition initiation including a first condition that the shift operation is performed at a high speed by switching of the operation switching section.
摘要:
A layout method in a layout apparatus for layout of an integrated circuit includes placing a plurality of cells at approximate positions according to the circuit data and placing the plurality of cells at specific positions according to the result of the placement of the plurality of cells at the approximate positions. In the placing the plurality of cells at specific positions, the plurality of cells are placed at specific positions, critical area values between cells adjacent to one another are calculated, and the specific positions of the cells are modified so as to reduce the critical area values obtained.
摘要:
When a location descriptive sentence is operated, a floor plan is generated is such a way that a circuit block of fixed shape can be laid out by assigning a rotation code to the circuit block of fixed shape or merging the circuit block of fixed shape with another circuit block.