摘要:
A technology is provided for automatically producing an inspection logic to be used in the action of inspecting a PC board. An inspection logic setting apparatus is arranged for acquiring a plurality of first images of components to be detected by the inspection and a plurality of second images of components to be rejected by the inspection, dividing each first and second images into the plurality of blocks, calculating a color distance between the plurality of first images and the plurality of second images in each block, selecting one or more blocks from the plurality of blocks which are relatively greater in the color distance, and assigning the selected block(s) to an area condition.
摘要:
In control method and apparatus for a direct injection spark ignited internal combustion engine, the internal combustion engine comprising a fuel injection valve configured to perform an injection of fuel through an engine cylinder and a spark plug, a super retard combustion comprising: an ignition through the spark plug at a timing after a compression top dead center; and at least once fuel injection in which the injection of fuel is started at a timing after the compression top dead center and before the ignition, during a cold start of the engine, is executed, and an execution of the super retard combustion is inhibited for a predetermined interval of time immediately after the cold start of the engine.
摘要:
A top edge trimming cutter, a bottom edge trimming cutter and a front edge trimming cutter are arranged to have predetermined distances from one another so as not to cause mechanical interference. The top edge trimming cutter, a first table element, a first blade receiving plate and a first pressing plate pressing a bound material against the first table element are attached to a first frame element. The bottom edge trimming cutter, a second table element, a second blade receiving plate and a second pressing plate pressing the bound material against the second table element are attached to a second frame element. Relative movement of the first and second frame elements effects relative movement of the top edge trimming cutter and the bottom edge trimming cutter, relative movement of corresponding first and second blade receiving plates and relative movement of corresponding first and second pressing plates.
摘要:
A DC-DC converter converts a DC input to a predetermined high-voltage DC output according to a predetermined control signal. An output unit has a pair of high- and low-voltage-side output paths and supplies the predetermined high-voltage DC output to a load. An output variation detecting unit has a resistor voltage dividing circuit including high- and low-voltage-side resistors connected in series between the pair of output paths and detects a variation in predetermined high-voltage DC output that follows a variation in the load. An inner shield shields the exterior of the resistor voltage dividing circuit. The inner shield is electrically connected to a node of the high- and-low voltage-side resistors. An outer shield shields the exterior of the inner shield. The outer shield is electrically connected to the low voltage-side output path of the pair of output paths. A control unit receives a voltage component generated across both ends of the low-voltage-side resistor of the resistor voltage dividing circuit, generates the predetermined control signal in accordance with the voltage component, and supplies the predetermined control signal to the DC-DC converter.
摘要:
A multiple step-up rectifier circuit, according to the invention, has a plurality of multiple step-up rectifier circuits, each of which is constituted by a combination of a plurality of diodes connected in series, output capacitors which are connected in parallel with this series circuit of the diodes, and supply capacitors which are charged by the input AC voltages and which supply the voltages to the output capacitors in amounts equal to the discharged voltages thereof. These plurality of multiple step-up rectifier circuits are connected in series, and each of these circuits receives an arbitrary AC voltage and generates a multiple step-up voltage. In these two adjacent circuts, there is the following relation: ##EQU1## where, C.sub.1 is the capacitance of each of the capacitors constituting one of the multiple step-up rectifier circuits; E.sub.1 is the input voltage thereof; I.sub.1 is the value which is obtained by adding the output current of this circuit and all of the output currents of the circuits of the post stage of this circuit; n.sub.1 is the half of the number of supply capacitors of this circuit; C.sub.2 is the capacitance of each of the capacitors constituting the other multiple step-up rectifier circuits; E.sub.2 is the input voltage thereof; I.sub.2 is the value which is derived by adding the output current of the second circuit and all of the output currents of the circuits at the post stage of this circuit; and n.sub.2 is the half of the number of the supply capacitors of the second circuit.
摘要:
A step-up rectifier circuit includes first and second input terminals for applying AC outputs of opposite polarities, a third input terminal connected between the first and second input terminals, a plurality of rectifier elements connected between the third input terminal and a first output terminal, a plurality of output capacitors connected in parallel to the rectifier elements, a second output terminal connected to a node between said output capacitors, a plurality of first capacitors connected between nodes between those of said rectifying elements located between the first output terminal and the second output terminal and a plurality of second capacitors connected between nodes between those of the rectifying elements which are between the second output terminal and the third input terminal, wherein the capacitance of the capacitors is defined such that the output voltages at individual output terminals can be made constant, regardless of whether other output terminals are loaded or unloaded.
摘要:
A multiple step-up rectifier circuit has a transformer, diodes connected in series with each other, and first, second, third and fourth capacitors. An AC signal source is connected to a primary winding of the transformer. A neutral point of a secondary winding of the transformer is grounded. One terminal of a series circuit of the diodes is connected to the neutral point such that the diodes are biased in the same direction. The first capacitor is connected across the two terminals of a series circuit of the diodes. The second capacitor is connected to a first output terminal of the secondary winding of the transformer and the common connecting point of a first pair of diodes. The third capacitor is connected between a second output terminal of the second winding of the transformer and the common connecting point of a second pair of diodes. The fourth capacitor is connected between a third output terminal of the secondary winding of the transformer and the common connecting point of a third pair of diodes.
摘要:
A switching element is connected between a power supply and the primary winding of a transformer, and it is on-off controlled with a predetermined cycle and with a predetermined conducting period. The secondary winding of the transformer is connected to a parallel circuit of a filtering capacitor and a load via a rectifier diode and a choke coil. A closed circuit, to which the reflux current of the choke coil flows through the parallel circuit of the filtering capacitor and load, is formed by a reflux diode.
摘要:
Signal-to-noise is enhanced by including the upper sideband of a sampled-speech signal with the original baseband signal for further signal processing. The invention features shifting both bands to form a continuum from 0 Hz to the sampling frequency. Application in a speech recognition is shown.