摘要:
This invention provides a laser welding method capable of supplying a filler wire to a welding object portion in a stabilized condition so as to stabilize welding quality. More specifically, the filler wire is supplied to the welding object portion while the laser beam is projected to the welding object portion. At this time, the filler wire is supplied obliquely from forward or backward in the welding advance direction such that the angle between the supplying direction and beam axis L of the laser beam is less than 45°.
摘要:
A workpiece butt position detecting method for butt welding for detecting with a high accuracy the butt position of workpieces, even having chamfered edges or sags at the ends thereof. Workpieces (1, 2) are scanned with a light beam (52) across a weld line (4), and the surface positions of the workpieces (1, 2) are measured by reflected light, whereby the position of the gradually lowering workpiece ends is determined. Recess detecting lines (62) lower than the upper surfaces of the workpieces (1, 2) are set in advance. When the detected surface positions cross the recess detecting lines (62), the lowest surface position (C) among the surface positions between the two crossed points can be determined as the butt position (48).
摘要:
The present invention relates to a nitrogen-containing fused ring compound represented by the following formula [I] wherein each symbol is as defined in the specification, or a pharmaceutically acceptable salt thereof, and an anti-HIV agent containing such compound. The compound of the present invention has an HIV integrase inhibitory activity, and is useful as an agent for the prophylaxis or treatment of AIDS, or as an anti-HIV agent. In addition, by the combined use with other anti-HIV agents such as a protease inhibitor, a reverse transcriptase inhibitor and the like, it can be a more effective anti-HIV agent. Becuae it shows integrase-specific high inhibitory activity, the compound can be a pharmaceutical agent safe on human body, which causes only a fewer side effects.
摘要:
An image data storage/processing apparatus is provided, which is particularly applicable to an electronic still camera, for example. The image data storage apparatus uses a dynamic RAM as a frame memory for temporarily storing image data representative of a field of an image to be recorded. The frame memory includes at least first and second memories. In the apparatus, there is provided a control so that the image data corresponding to the adjacent two pixel lines on the field are continuously read out in such a manner that they are simultaneously read out from the first and second memories, and the image data corresponding to one of the two pixel lines are read out with delay by the time required for reading out of the image data corresponding to the other pixel line. The image signal processing apparatus is capable of performing processing for writing in and reading out of various types of image data with a single memory.
摘要:
A surface hardened aluminum part having excellent heat resistance and abrasion resistance obtained by forming, on the surface of an aluminum base material, an alloy layer that has a uniform composition and uniform hardness, being free from cracks. An aluminum alloy powder made of aluminum and metals each of which forms an intermetallic compound of high hardness with aluminum is prepared. This aluminum alloy powder is supplied onto the aluminum base material and the aluminum or aluminum alloy contained in the aluminum base material is alloyed with the aluminum alloy powder using a high-density energy heat source to form an alloy layer. The alloy layer thus formed has an intermetallic compound of high hardness uniformly distributed throughout the layer so that the hardness of the alloy layer is uniform and cracking is unlikely to occur.
摘要:
A method of recording data in a memory card having an EEPROM, and a memory card system using the same are provided. A memory card has at least two collective erasure type EEPROM chips where at least one of which is conditioned for a spare memory. When an access of the kind needing overwriting is made to the memory card, data stored in memory locations of the addresses of a corresponding EEPROM chip, except for the address where overwriting is to occur, are copied in the spare memory, and then the EEPROM chip of interest and the spare memory are replaced with each other. The EEPROM chips may be replaced with a plurality of memory blocks or clusters defined in a block erasure type EEPROM.
摘要:
Consumption of power in a digital electronic still-video camera is reduced. Specifically, a digital electronic still-video camera includes a first memory module circuit and a second memory module circuit controlled by a memory module circuit so as to be placed in active and standby states. When one memory module circuit is in the active state, the other memory module circuit is placed in the standby state, thereby making it possible to reduce power consumption.
摘要:
A digital electronic still-video camera is capable of performing rapid-sequence photography at high speeds. When a rapid-sequence photographic mode has been set, each of a plurality of frames of image data obtained by such photography is compressed. Image data which forms a single multiple-frame picture is constructed by a set of image data composed of the compressed plurality of frames. Thinning out is performed in order to compress the image data. The image data is successively stored, while being thinned out, at corresponding addresses of an image memory in such a manner that a multiple-frame picture is constructed in the image memory. After photography in the rapid-sequence mode ends, the image data in the image memory is subjected to data compression and then recorded on a memory card.
摘要:
In a memory card control device for interfacing an electronic still camera or similar electronic equipment and a memory card removably mounted on the equipment, a data processing device operates only at a supply voltage of 5 volts while a logic circuit operates at a supply voltage of 3 volts. A first level shifter converts the level of signals output from the memory card to a level matching the logic circuit. A second level shifter converts the level of signals output from the logic circuit to 5 volts and transfers it to the processing device, while converting the level of signals output from the processing device to 3 volts and feeding it to the logic circuit. The control device accommodates various kinds of memory cards each having a particular rated supply voltage.
摘要:
An integrated circuit (IC) chip which can be tested even after being packaged on a circuit board together with other IC chips, and a method of testing such IC chips on the circuit board are provided. The IC chip has a main IC section to which a particular function is assigned, and a plurality of testing circuits capable of freely extracting output data of the main IC section on a common bus. An interface is also provided on the IC chip which receives signals for controlling the testing circuits from the outside. The testing circuits, therefore, can selectively hold data sent from the outside or data from the main IC section and then send the data out via input/output terminals thereof or the interface.