Abstract: A DRAM comprises: a memory cell array divided into a plurality of banks (34, 35; 43, 46) each having a plurality of dynamic type memory cells arranged into substantially a matrix pattern, data being writable in and readable from each memory cell and further the data written in the memory cells being refreshable; activating sections (28, 30) for activating the memory cells to be read, written and refreshed; precharging sections (29, 31) for precharging data lines connected to the memory cells to be read; and command detecting circuits (1, 6, 12, 18, 23) for detecting commands and outputting control signals corresponding to the detected commands, to operate the DRAM in correspondence to the respective commands, each of a plurality of command detecting circuits (1, 6, 12, 18, 23) being provided for a plurality of the banks in common to detect one command.

Abstract: A video projector has first and second projector devices and a display screen. The first projector device is used to project a plurality of first image elements to be perceived by, for example, the right eye of a viewer. The second projector device is used to project a plurality of second image elements to be perceived by, for example, the left eye of the viewer. The first image elements from the first liquid crystal projector device and the second image elements from the second liquid crystal projector device are projected on the display screen. The size of image elements projected on a liquid crystal display panel is adjusted so that the adjacent image elements do not overlap with each other. As a result, interference between adjacent picture elements is substantially eliminated and thus the image quality is improved.

Abstract: A manually operable grooming device for animal coats, the device including: a main body; a scratching unit carried by the main body and including a support member and a plurality of scratching teeth carried by, and extending from, the support member, the scratching teeth having free ends which define a scratching surface; a removable screen penetrated by at least a portion of the scratching teeth for recovering animal fur from between the scratching teeth; and a suction unit mounted in the main body behind the scratching surface for producing an air flow along a path adjacent the scratching unit and in a direction from the scratching surface toward the support member, wherein the screen extends across a surface which is spaced from the scratching surface and includes an annular portion which surrounds the scratching teeth, is free of teeth, and is in the path of the air flow.

Abstract: Disclosed is a composite ceramic sintered material comprising a surface layer of a composition which contains the silicon nitride and carbon, and an internal portion of the silicon carbide or a combination of the silicon carbide, silicon nitride and carbon, the content of carbon or the content of the silicon nitride being greater in the surface layer than in the internal portion.

Abstract: In an electronic musical instrument, there is no creation of new automatic accompaniment data and the performer can carry out automatic accompaniment using favored optional automatic accompaniment data. The electronic musical instrument provides storage apparatus for storing automatic performance data, a designator for designating a fixed region of the automatic performance data and a automatic accompaniment apparatus which performs automatic accompaniment based on a pattern of the fixed region designated by the designator. Therefore, when the performer designates an optional region of the automatic performance data storage apparatus, automatic accompaniment of the patterns in the optional region designated by the automatic accompaniment apparatus using the designator is carried out.

Abstract: The present invention relates to concrete structures and methods for making walls and the like from precast concrete structures. Certain embodiments include an outer wall, and inner wall, and define a region between the walls into which reinforcing concrete may be added.

Abstract: An electronic musical instrument with an automatic accompaniment function has a plurality of registration data corresponding to an accompaniment patterns, and a registration can be selected from the plurality of registration data corresponding to the selected and designated accompaniment pattern. The registration data represents a set of data such as the tone color, tone volume, effect, and the like of musical tones, for defining a performance environment. A plurality of accompaniment patterns are prepared for each style. When an accompaniment pattern is changed, the registration is changed in correspondence with the changed accompaniment pattern. Furthermore, when an accompaniment pattern is changed between different pattern groups, the registration is changed. When an accompaniment pattern is changed in one pattern group, the registration is left unchanged. The pattern group is a group of a plurality of similar accompaniment patterns.

Abstract: A device for treating conditions causing obstructions in a body passage, composed of a catheter dimensioned to be insertable into the body passage and having a lateral wall and a distal end via which the catheter can be inserted into the body passage, the catheter being provided internally with fluid conducting passages and a fluid outlet passage which extends through the lateral wall and communicates with one of the fluid conducting passage; and first and second balloons carried by the catheter and extending outwardly from the lateral wall, the balloons communicating with respective fluid conducting passages and being disposed so that the first balloon is located between the fluid outlet passage and the distal end of the catheter, wherein one of the balloons is a high compliance volume balloon and the other of the balloons is a low compliance pressure balloon dimensioned to radially dilate the body when expanded by a fluid under pressure.

Abstract: A delay time measuring circuit includes a delay circuit for changing the delay times of first and second clock signals output to measure the delay time of an evaluated circuit according to an externally supplied control voltage, and a voltage controlled oscillator whose oscillation frequency is controlled by the same control voltage as that used for the delay circuit, and is constructed to measure the delay time of the evaluated circuit based on an output of the voltage controlled oscillator. Therefore, it is possible to precisely evaluate the operation speed of a circuit operating at high speed.

Abstract: In a combined magnetic head of the present invention, a slider (20) for holding a combined magnetic core (10) has a couple of anti-slant noses (25) whose confronting surfaces each include an abutment ridge (26) extending along the height of the anti-slant nose and intended to be abutted against the combined magnetic core which has been inserted into a core slit (22) of the slider. This construction enables the interval between the couple of noses to be accurately adjusted in conformity with the thickness of the combined magnetic core at the time of integral molding of the slider. As a result, a secure prevention of the slant of the combined magnetic core can be accomplished to ensure an accurate positioning of the combined magnetic core with respect to the slider.

Abstract: A CPU extracts a specified number of tones, in order of lower pitch from among notes of pressed keys and then determines a chord based on the specified tones so that a musical relationship can be established between the tones corresponding to the depressed keys and the generated chord, thus eliminating incongruity in the performance. In addition, since the chord detection is made based on the specified number of tones, there is no need to play all the constituent notes of the chord. Moreover, by storing chord pattern abbreviations in chord table memory, chords are detected in the manner that of frequently occurring abbreviated chord patterns are prioritized over infrequently occurring chord patterns.

Abstract: A foot pedal, particularly as used for the bass drum of a drum set, is fundamentally constructed of a heel member, a foot board, a beater, a frame member and a base plate. The heel member supports one edge portion of the foot board so that the foot board can freely rotate about the supporting point. In response to operation of the foot board by the performer, the beater is moved to beat the drum head of bass drum, so that the bass drum sounds are produced. The beater is supported by the frame member so that it can freely rotate about the supporting point. The frame member has a vertical portion which extends along with the rotation direction of the foot board. An edge portion of the base plate is fixed to the heel member, while an opposite edge portion is fixed to the vertical portion of the frame member by a connecting mechanism, so that the base plate is assembled with the heel member and frame member in the predetermined positional relationship.

Abstract: A prosthesis used for a damaged bone, an artificial articular cartilage or an artificial intervertebral disc being characterized in that the prosthesis is a composite body comprising polyvinyl alcohol hydrogel and ceramic or metallic porous body. With this prosthesis, PVA hydrogel enhances lubrication and shock absorbing functions, and the porous body allows the ingrowth and ossification of the bone tissue of a living body therein to affinitively connect said hydrogel to the bones of the living body.

Abstract: A field programmable gate array, comprises: a plurality of circuit blocks each having logic circuits; at least one spare circuit block having logic circuits; a set of interconnections including at least one interconnection for connecting at least one of the circuit blocks and the at least one spare circuit programmably; and at least one connecting element disposed on the interconnection of the set of interconnections which turns its status from a turned-on state to a turned-off state or vice versa when programmed. When any one of the circuit blocks is defective, since the defective circuit block can be replaced with the spare circuit block, it is possible to retain any desired functions of the logic circuits by programming the connecting means, thus improving the production yield of the field programmable gate array and thereby reducing the manufacturing cost thereof.

Abstract: A method for processing end portion of fabric knitted by a flat knitting machine wherein integration of fabrics and the anti-raveling of end portion at the completion of knitting are carried out and the joined portion is not projected out of the surface of fabric. Two feeders which travel different orbits on a needle bed are used, a yarn on the front yarn feeder is fed to a needle of the back bed while a yarn on back yarn feeder is fed to a needle of front bed so that the yarns on both the yarn feeders are intertwined with each other to form a loop of fabric, and the formed loop is transferred to the needle adjacent thereto to overlap the loop to integrally connect the fabric.

Abstract: A field insulating film and a gate insulating film are formed on the surface of a semiconductor substrate, and thereafter contact holes for a source and drain are formed in the gate insulating film. Polycrystalline Si containing impurities are deposited on the substrate and patterned to form source, gate, and drain electrode layers. The source and drain regions are formed by implanting impurity ions and doping the impurities in the source and drain electrode layers to the substrate surface. An interlayer insulating film having a flat surface is thereafter formed on the substrate, and contact holes are formed in the interlayer insulating film by selective etching. The etching depths of the contact holes are generally the same, preventing an excessive etching of the contact hole for the gate electrode.

Abstract: A method for identifying foreign matter in or on a sample, using apparatus composed of an X-ray generator, an X-ray detector, and a sample stage having a tilting mechanism capable of fixing a sample and changing both its irradiation and detection angles at the same time, an inclination fixing jig, and a calculation processing unit for executing bulk composition calculation at each angle according to the obtained X-ray intensity which is detected at the each angle. A judgment is made such that there is foreign matter mixed in the sample material when the bulk composition indications are coincident even when the angle is changed, while there is foreign matter at the surface of the sample when the bulk composition indications are not coincident.

Abstract: A semiconductor memory includes memory cells, word lines, bit lines, a row decoder, column decoder, a voltage-changing circuit, a sense amplifier, and an output circuit. Each memory cell stores multi-level data. The row decoder selects one of the word lines in accordance with an address signal. The voltage-changing circuit generates different voltages, which are applied to the row decoder. The different voltages are sequentially applied from the voltage-changing circuit to the word line selected by the row decoder. The column decoder selects a bit line every time the potential of the word line changes. The sense amplifier detects the data read from the memory cell onto the bit line every time the potential of the word line changes. The output circuit converts the data to code data.