摘要:
A method for distributing clocks to flip-flop circuits which constitute a logic circuit includes obtaining a timing slack of a first minimum delay time with respect to a minimum delay constraint time and a timing slack of a first maximum delay time with respect to a maximum delay constraint time for a clock in an input path to a flip-flop circuit, obtaining a timing slack of a second minimum delay time with respect to a minimum delay constraint time and a timing slack of a second maximum delay time with respect to a maximum delay constraint time for a clock in an output path from all the flip-flop circuits which receive the clocks from a clock terminal directly and obtaining a delay value which maximizes a minimum value of each of the first and second minimum delay time and maximum delay time of timing slacks.
摘要:
A shielding wire is provided with a first conductor, a shield for sheathing the first conductor through an insulating member, and a second conductor which is in contact with the shield. Therefore, a troublesome step of unknitting the braid of the shield is eliminated, and the work is done at a higher efficiency and the manufacturing cost is reduced.
摘要:
Providing a high-voltage-side terminal with means for preventing a core inserted into a central hole of a bobbin from getting out of position securely fixes the core to the predetermined position, at the time a transformer which is a part of an ignitor is assembled, during the work proceeds from the inserting step of the core to the next step. Thus, at the time the ignitor-integral type bulb socket is assembled, the core hardly moves out of the predetermined position and there is a less possibility that the core gets out of position. Accordingly, this does not require so high machining accuracy of both members and reduces the cost for machining the product as well as for inspecting the dimension control or the like.
摘要:
A lighting device for a headlamp light source includes an connector to be connected to cables for supplying power to the light source, and attached to the bottom of a headlamp case that houses a light source, wherein the output connector is formed such that when the lighting device is attached to the headlamp case, the bottom of a connection opening to which cables of the output connector are connected is disposed at a higher position than a bottom face inside the headlamp case.
摘要:
A mounting board has a board, retaining members mounted on the upper surface of the board, and a part retained by the retaining members. The part is mounted such that at least a part thereof is arranged below the lower surface of the board, and that the part is electrically connected to the board through the retaining members. Such an arrangement as described above eliminates the need of connecting the discharge gap element to the board by using lead wires, and of mounting it on the upper surface of the board. This lowers the height of the board and admits an elevated part.
摘要:
A method for generating layout data of a semiconductor integrated circuit includes applying optical proximity correction conditions to cells so as to generate cell patterns, selecting cell patterns to correspond cells, based on layout information of cells along a specified signal propagating path; calculating delay times for the signal propagating path for combinations of cell patterns; selecting a combination of cell patterns, based on lengths of the calculated delay times and the allowable delay time; and generating layout data of the signal propagating path using the selected combination.
摘要:
A through hole that is slightly larger than a size of a rear end of a transformer container is formed in a rear cover constituting a part of an external wall of a starting circuit unit. The transformer container houses therein a transformer and constitutes a transformer portion. The transformer portion is assembled such that a rear end of the transformer container projects from the through hole. This allows the transformer container to constitute a part of the external wall of the starting circuit unit.
摘要:
An electric discharge lamp lighting device wherein a high voltage generating transformer 10 comprises a secondary coil 13 wound on an outer side of a laminated core 12 disposed in the center of a bobbin 11 and a primary coil 14 wound on an outer side of said secondary coil 13. A high voltage output terminal 13a of said secondary coil 13 is connected to a high voltage terminal of an HID lamp through a terminal 12a of a laminated core 12. A low voltage input terminal 13b of said secondary coil 13 is connected to a primary coil 14. As a result, insulation volume can be reduced and a reduction in the size of the device can be achieved.
摘要:
A layout design method and system for a semiconductor integrated circuit improves circuit performances related to operated frequency and power consumption by improved placement and routing. The method features an intersecting wiring predicting step that predicts the number of the intersecting wirings based on predicted wiring routes and an intersecting wiring capacitance calculating step that calculates the capacitances between the intersecting wirings.
摘要:
A layout method of designing a wiring pattern on a semiconductor integrated circuit chip according to the present invention comprises three steps of omitting a part of or all of a wiring pattern within cells for a plurality of circuit elements for layout results of these predetermined circuit elements to prepare wiring obstruction data (step 1); deciding a specific wiring path connecting between the cells with reference to the prepared wiring obstruction data (step 2); and repositioning of the cell to correct the layout with no design rule violation and no short between this specific wiring path and the wiring pattern within cells (step 3). The pattern layout is performed so that the specific wiring path is wired in the shortest length of wiring path without making a snaking wire path and also uncomplete wiring does not happen to occur.