Abstract: According to one embodiment, a file processing apparatus includes a file group generator, a divided file generator, and a recorder. The file group generator is configured to generate a file group formed by a plurality of first processing target files each having a size less than a threshold size of processing target files. The divided file generator is configured to generate first divided files by dividing the file group, and to generate second divided files by dividing a second processing target file having a size not less than the threshold size of the processing target files. The recorder is configured to record the first and second divided files.

Abstract: A MEMS resonator includes a main movable beam, at least one sub movable beam, and at least one exciting electrode. The main movable beam is electrically insulated from a substrate and fixed to at least one fixed end, the sub movable beam is formed to extend from the main movable beam, and the exciting electrode is provided to be close to the sub movable beam. The sub movable beam is excited by an electrostatic force to oscillate by exciting the exciting electrode using an alternating-current signal, such that the MEMS resonator resonates with at least one of a fundamental resonant frequency and harmonic frequencies thereof. The resonant frequency is changed by changing at least one of number of the at least one exciting electrode and a position of the exciting electrode relative to the sub movable beam.

Abstract: [Subject] An object of the present invention is to provide a resonator readily achieving a high resonance frequency without extreme downsizing and allowing for a high Q factor. [Solving Means] A resonator includes: a substrate serving as a base; a first beam having opposite ends fixed to the substrate via fixed connection portions, and having a vibration receiving location for providing linear reciprocating motion in a direction perpendicular to the longitudinal direction thereof; and second beams, branching toward one side from a plurality of branching locations different from the vibration receiving location in the first beam, for generating torsional vibration in accordance with the linear reciprocating motion. The resonator further includes a plurality of third beam, extending from the plurality of branching locations to a side opposite to the plurality of second beams, for generating torsional vibration.

Abstract: A micro mechanical resonator includes a high dielectric substrate, and a torsional vibrator having one end that is a fixed end fixed to high dielectric substrate, and having the other end that is a free end. The torsional vibrator has a substantially circular plate-like shape, has a lower surface serving as the fixed end fixed to the substrate, and has an upper surface serving as the free end that is not fixed. The torsional vibrator torsionally vibrates relative to an axis (torsional vibration axis) connecting the center of the circle of the end surface of the fixed end to the center of the circle of the end surface of the free end. In this way, a micro mechanical resonator can be implemented which can be manufactured readily and achieves a high Q factor.

Abstract: A MEMS resonator is provided a main movable beam, at least one sub movable beam, and at least one exciting electrode. The main movable beam is electrically insulated from a substrate and fixed to at least one fixed end, the sub movable beam is formed to extend from the main movable beam. The exciting electrode is provided to be close to the sub movable beam. The sub movable beam is excited by an electrostatic force to oscillate by exciting the exciting electrode using an alternating-current signal, such that the MEMS resonator resonates with at least one of a fundamental resonant frequency and harmonic frequencies thereof. The resonant frequency is changed by changing at least one of number of the at least one exciting electrode and a position of the exciting electrode relative to the sub movable beam.

Abstract: In a MEMS switch including a movable electrode member, a substrate, a transmission line electrode, and a fixed electrode, the substrate includes a bump formed at a predetermined position to support the movable electrode member at application of a driving voltage. The transmission line electrode is formed on the substrate, and the fixed electrode is formed on the substrate. The movable electrode member includes a movable electrode opposed to the fixed electrode, a first contact opposed to the transmission line electrode, and a second contact opposed to the bump. The movable electrode member is supported between the fixed electrode and the movable electrode at a predetermined initial gap. At application of a predetermined driving voltage to the fixed electrode, the movable electrode member moves in a direction of the substrate by an electrostatic force generated between the fixed electrode and the movable electrode.

Abstract: The present information processing apparatus, which receives and executes commands, monitors time-outs of commands with reliability, thereby making it possible to prevent a command initiator from detecting time-outs of the commands. The apparatus includes: a time stamp unit for storing, in a command buffer, a receiving time at which a command receiving unit received a command, in association with the command; and a read-out time-out detecting unit for detecting read-out time-out of a first buffered command in the command buffer, based on the receiving time of the first buffered command. If the read-out time-out detecting unit detects a read-out time-out, the command executing unit reads the command, for which the read-out time-out is detected, from the command buffer and executes the read-out command.

Abstract: A storing unit stores initial parameters indicating initial values of control parameters in a first storage medium in association with first update parameters obtained by modifying the initial parameters. A difference detecting unit compares, when second update parameters are stored in a second storage medium, the initial parameters with the second update parameters, and detects a parameter that is different between the initial parameters and the second update parameters. An initialization unit initializes the first update parameters based on a result of detection by the difference detecting unit.

Abstract: Variation in inductance and leakage inductance between the secondary windings is reduced thereby making lamp currents uniform and thus preventing the occurrence of uneven brightness. A two-output inverter transformer comprises a bobbin having a primary winding wound around the middle and secondary windings wound on both sides thereof and having a pole-like core inserted into its winding shaft. A rectangle frame-like core is placed to surround the primary and secondary windings such that the pole-like core is opposite the rectangle frame-like core with a gap sheet interposed at either end. Their sizes are set such that L2?L1>2 t, where L1 is the length of the rectangle frame-like core, L2 is the length of the pole-like core, and t is the thickness of the gap sheet, and they are so combined that the pole-like core protrudes evenly from the opposite ends of the rectangle frame-like core.

Abstract: A RF switch can be used in a wide frequency range and can be manufactured at a low cost. The RF switch changes a signal passing through a waveguide with a variable device that is switchable between the first state in which the variable device has a high resistance and the second state in which the variable device has a low resistance, depending on the direction in which current flows through the variable device. The RF switch includes a high-frequency transmission circuit including the waveguide and at least one variable device, a driver circuit including at least one variable device, and a signal circuit for changing current supplied to the variable devices of the high-frequency transmission circuit and the driver circuit for switching between the first and second states of the variable devices.

Abstract: Variation in inductance and leakage inductance between the secondary windings is reduced thereby making lamp currents uniform and thus preventing the occurrence of uneven brightness. A two-output inverter transformer comprises a bobbin having a primary winding wound around the middle and secondary windings wound on both sides thereof and having a pole-like core inserted into its winding shaft. A rectangle frame-like core is placed to surround the primary and secondary windings such that the pole-like core is opposite the rectangle frame-like core with a gap sheet interposed at either end. Their sizes are set such that L2?L1>2t, where L1 is the length of the rectangle frame-like core, L2 is the length of the pole-like core, and t is the thickness of the gap sheet, and they are so combined that the pole-like core protrudes evenly from the opposite ends of the rectangle frame-like core.

Abstract: A microactuator includes a stationary element, a movable element, and a first microstructure. The stationary element is fixed on a substrate and has a plurality of stationary element electrodes arranged at a predetermined pitch. The movable element has a plurality of movable element electrodes opposing to the stationary element electrodes. The movable element is moved by applying a voltage across the stationary element and the movable element. The first microstructure is formed on at least one of the opposing surfaces of the movable element and the stationary element to prevent the movable element from attaching to the stationary element.

Abstract: The present information processing apparatus, which receives and executes commands, monitors time-outs of commands with reliability, thereby making it possible to prevent a command initiator from detecting time-outs of the commands. The apparatus includes: a time stamp unit for storing, in a command buffer, a receiving time at which a command receiving unit received a command, in association with the command; and a read-out time-out detecting unit for detecting read-out time-out of a first buffered command in the command buffer, based on the receiving time of the first buffered command. If the read-out time-out detecting unit detects a read-out time-out, the command executing unit reads the command, for which the read-out time-out is detected, from the command buffer and executes the read-out command.

Abstract: A RF switch can be used in a wide frequency range and can be manufactured at a low cost. The RF switch changes a. signal passing through a waveguide with a variable device that is switchable between the first state in which the variable device has a high resistance and the second state in which the variable device has a low resistance, depending on the direction in which current flows through the variable device. The RF switch includes a high-frequency transmission circuit including the waveguide and at least one variable device, a driver circuit including at least one variable device, and a signal circuit for changing current supplied to the variable devices of the high-frequency transmission circuit and the driver circuit for switching between the first and second states of the variable devices.

Abstract: A micro-machine switch in accordance with the present invention includes a supporter having a predetermined height relative to a surface of a substrate, a flexible cantilever projecting from the supporter in parallel with a surface of the substrate, and having a distal end facing a gap formed between two signal lines, a contact electrode formed on the cantilever, facing the gap, a lower electrode formed on the substrate in facing relation with a part of the cantilever, and an intermediate electrode formed on the cantilever in facing relation with the lower electrode. The micro-machine switch can operate at a lower drive voltage than a voltage at which a conventional micro-machine switch operates, and can enhance a resistance of an insulating film against a voltage.

Abstract: A method of manufacturing a high-gain, high-frequency device, such as a phased-array antenna, which uses such a switch having movable parts as a micromachine switch. The high-frequency device comprises a dielectric substrate on which are formed a plurality of waveguides for carrying high-frequency signals, a phase control layer, and dielectric spacers arranged between the phase control layer and another layer to provide space in which a switch formed in the phase control layer is enclosed.

Abstract: An electrostatic actuator has: an upper structure that is connected, via an arm, to a supporting base provided on a substrate and is supported in a space existing over the substrate; a lower structure that is provided in a substrate position in such a way as to oppose the upper structure; an inclination structure that is provided with respect to either one of the upper structure and the lower structure so as to make small the distance between the upper structure and the lower structure; and one or more electrodes that are provided with respect to the other structure in corresponding relationship to the inclination structure.

Abstract: A micromachine includes a switch having a supporting member provided on a substrate. The supporting member is adjacent to a gap between a signal line and the substrate and has a predetermined height with respect to the substrate. A flexible beam member projects from the supporting member generally parallel to the substrate and extends so that part of the flexible member faces the gap. A contact electrode on the beam member faces the gap. A lower electrode on the substrate faces part of the beam member. Part of the beam member is conductive to function as an upper electrode. The thermal expansion coefficients of the beam member are almost symmetric in the thickness direction perpendicular to the substrate surface, at least from the portion at which the beam member is connected to the supporting member to the portion facing the lower electrode.

Abstract: A relatively small phased array antenna is formed at a low cost even if the number of radiating elements increases in order to improve the gain. The phased array antenna has a multilayered structure in which a number of radiating elements (15), a phase shift unit (16) for changing the phase of an RF signal transmitted/received at each radiating element, and a distribution/synthesis unit (14) are formed on different layers. Signal lines (X1-Xm) and scanning lines (Y1-Yn) are wired on a phase control layer (35) to connect phase shift units to each other in a matrix. The signal lines and the scanning lines are matrix-driven by selection units (12X, 12Y) so that desired phase shift amounts are set to phase shift units located at the intersections of the signal and scanning lines. In addition, switches (17S) of a phase shifter (17) are formed at once on the phase control layer.