摘要:
There are provided a test apparatus and method for testing a semiconductor integrated circuit which enables improvements in the ease of operation and convenience of a BOST device and shortening of a test time. Numeric codes are assigned to tests. A test apparatus is equipped with memory and an analysis section. A test requirement table—in which hardware requirements required for conducting a test are set on a per-numeric-code basis—is stored in the memory. Test requirements corresponding to a numeric code are read from the memory, whereupon a test is performed. The analysis section analyzes a digital test output and sends the result of analysis to an external controller.
摘要:
The method of producing a wiring board comprises the steps of: preparing a photosensitive resin layer; pressing the photosensitive resin layer; exposing the pressed photosensitive resin layer to light by using a exposure mask on which a predetermined pattern is formed; and developing the exposed photosensitive resin layer.
摘要:
A testing system for voice system equipment in a switchboard includes a testing maintenance terminal for inputting telephone number information of an ordinary subscriber's telephone that is to be designated as a maintenance party telephone. The testing maintenance terminal can be a testing maintenance terminal of a general-purpose information processing unit. A call processing block inside a control unit of the switchboard includes a test accepting module for accepting the telephone number information from the testing maintenance terminal and for transmitting a call message to a call control module, in addition to the call control module and a translation module. Therefore, when the telephones number information of the ordinary subscriber's telephone designated as the maintenance party telephone is inputted from the testing maintenance terminal, the call control module and the translation module execute an emulation processing for the call connection processing to the ordinary subscriber's telephone designated as the maintenance party telephone in accordance with the call message transmitted from the test accepting module, in the same way as the ordinary call connection processing. Consequently, various tests can be conducted by using the ordinary subscriber's telephone as the maintenance party telephone for the test of the voice system equipment of the switchboard.
摘要:
A tensioner for an endless transmitting member is provided to reliably prevent the loosening of an endless chain, while preventing the occurrence of an incorrect meshing of the endless chain with sprockets. A plunger holder is biased in an advancing direction by the action of a first spring supported in a housing, and a plunger, carried in the plunger holder, is biased in an advancing direction by the action of a second spring having a spring constant larger than that of the first spring. Only the movement of the plunger holder in the advancing direction is permitted by a ratchet mechanism mounted between the plunger holder and the housing. During operation of the engine, the advancing movement of the plunger holder is inhibited by the hydraulic pressure transmitted to a hydraulic pressure chamber, and the plunger is advanced and retracted in accordance with a variation in tension of the endless chain. When the engine is stopped, the ratchet mechanism is operated in accordance with the elongation of the endless chain due to wearing to advance the plunger holder one pitch at a time along with the plunger.
摘要:
A secondary balancer device provided below a cylinder block of an engine including a front balancer shaft and a rear balancer shaft which are rotated in opposite directions and have longitudinally central main journal portions carried in a balancer holder, respectively. Bracing journal portions are provided on axial ends of one of the front and rear balancer shafts and supported in a pump body and a pump cover of an oil pump provided below the cylinder block, respectively. A pump shaft of the oil pump and the front balancer shaft are connected to a crankshaft by a common endless chain and rotated at different numbers of revolutions. Thus, the number of parts for supporting the balancer shafts can be reduced, while maintaining the freedom of setting the number of revolutions of the oil pump of the engine.
摘要:
A novel aroyl ketone derivative represented by formula (I) is disclosed:Ar(COCH.sub.2 COR.sup.1).sub.n (I)wherein R.sup.1 represents a saturated or unsaturated hydrocarbon group having 1-24 carbon atoms, or a linear or branched alkoxyalkyl or alkenyloxyalkyl group having 1-24 carbon atoms, dialkylamino group having 1-24 carbon atoms, Ar represents a benzene or naphthalene ring which may be substituted with one or more hydroxyl groups, alkoxy groups having 1-24 carbon atoms, alkenyloxy groups having 1-24 carbon atoms, polyoxyleneoxy groups, or .alpha.-methylenedioxy groups, and n denotes an integer of 1-4. An UV-ray absorber and cosmetic composition comprising the aroyl ketone derivative of formula (I) are also disclosed. Aroyl ketone derivative (I) of the present invention can provide an excellent UV-ray absorbing effect and has outstanding stability against light, and the UV-ray absorber or cosmetic composition containing the aroyl ketone derivative (I) can exhibit an excellent sunscreening effect.
摘要:
An improved gasket where the openings in the gasket which fit around the cylinder bores is provided with a grommet which is generally U-shaped in cross-section, having spaced ends at least one of which is bent inwardly to engage the bore wall of the grommet to securely hold the grommet in place in the gasket opening.
摘要:
An auto tuning/storing receiver includes a PLL frequency synthesizer for scanning of frequency. The receiver is provided with means storing field intensity signals characteristic of the intensities of broadcasts at the same time as tuning signals characteristics of tuning frequencies are stored. Once the storing means has been full of the tuning signals during the scanning of frequencies, comparison is effected in field intensity between a new broadcast and all of the already stored broadcasts whenever the field intensity of the new one exceeds the reference or the storing criterion. Should the field intensity of the new one be higher than the lowest field intensity of one of the already stored broadcasts, the new broadcast (both its related tuning signal and field intensity signal) replaces the most feeble of the previous broadcasts automatically. An alternative way is to remove the tuning signal and field intensity signal concerning the latter broadcast (most feeble) and access and shift on one-by-one basis for storage of the information which follows regarding the next succeeding or remaining broadcasts when the former (new) broadcast is higher in field intensity than the latter broadcast.
摘要:
Disclosed is a wire array rubber connector (10), including: an electrical insulating rubber (2); and a plurality of conductive metal wires (1) that are arrayed in a thickness direction of the electrical insulating rubber so as to pass through front and back surfaces of the electrical insulating rubber, and localized so as to be electrically connectable to electrical terminals that are disposed at predetermined positions on the front and back surfaces of the electrical insulating rubber. The electrical insulating rubber (2) is a flame-resistant rubber achieving V-0 based on the UL-94 standard. This wire array rubber connector (10) is obtained by: mixing a plurality of conductive metal wires having a predetermined length into a liquid thermosetting electrical insulating rubber material; applying a magnetic field from a thickness direction of the rubber material using an electromagnet that is patterned in a predetermined pattern so that the conductive metal wires are arrayed in the thickness direction and localized; and curing the rubber material by heating, thereby providing the wire array rubber connector with high flame resistance and with low transmission loss in a high frequency region.
摘要:
A chain tensioner device includes a main arm, tensioner lifter, and a sub-arm. The main arm is pivotally supported by a first shaft. The main arm slidably contacts an endless chain to apply a tension to the endless chain. The tensioner lifter includes a housing, a plunger, and a spring. The plunger is slidably held by the housing. The spring is to press the plunger such that the plunger projects from the housing. The sub-arm is disposed between the main arm and the tensioner lifter. The sub-arm is pivotally supported by a second shaft to transmit a biasing force applied by the plunger of the tensioner lifter to the main arm. A moving direction of the plunger is substantially orthogonal to a direction of a tangent at a contact portion between the plunger and the sub-arm when an elongation of the endless chain reaches a maximum elongation.