Abstract: In order to provide a driving device that is capable of eliminating sticking of a movable member due to nonuse, the driving device includes a drive shaft that reciprocates in axial directions with expansion and contraction of an electromechanical transducer element, a movable member that frictionally engages with the drive shaft, and a drive circuit that inputs drive voltage into the electromechanical transducer element, the drive circuit outputting drive operation pattern voltage having a frequency (fd1?) lower than a resonance frequency (fr) of the electromechanical transducer element and lower than a frequency (fd1) that maximizes moving velocity of the movable member and sticking elimination pattern voltage having a frequency lower than the frequency (fd1?) of the drive operation pattern voltage and in vicinity of a frequency (fd2) that maximizes thrust acting on the movable member.

Abstract: A 3-phase inverter module is provided, which includes first and second U-phase switching elements connected in series to each other to constitute a U-phase inverter, first and second V-phase switching elements connected in series to each other to constitute a V-phase inverter, first and second W-phase switching elements connected in series to each other to constitute a W-phase inverter, a U-phase high voltage integrated circuit for generating a control signal for controlling the U-phase inverter according to a U-phase input signal, which has a fault-out terminal for the U-phase, a V-phase high voltage integrated circuit for generating a control signal for controlling the V-phase inverter according to a V-phase input signal, which has a fault-out terminal for the V-phase, and a W-phase high voltage integrated circuit for generating a control signal for controlling the W-phase inverter according to a W-phase input signal, which has a fault-out terminal for the W-phase.

Abstract: In one embodiment, a power converter system comprises an input terminal operable to connect to a DC power source and an output terminal at which an output voltage can be provided. An active clamped forward converter is operable to provide forward power flow from the DC power source to the output terminal. A flyback converter is operable to provide backward power flow from the output terminal to the DC power source. The active clamped forward converter and the flyback converter cooperate to generate a rectified sinusoidal waveform at the output terminal.

Abstract: In one embodiment, a method is provided for a power converter system. The method includes: providing a primary current limit for the power converter system, wherein the power converter system has one or more transistors which can be switched on at a primary frequency to cause current to flow through an inductor of the power converter system; and using the primary current limit for over-current protection in the power converter system, wherein over-current protection does not employ any secondary frequency for switching of the one or more transistors and does not employ any secondary current limit.

Abstract: In one embodiment, a method is provided for preventing reverse input current from flowing into a power source.

Abstract: There is described an image capturing apparatus, which makes it possible to unify the gradation characteristics all over the captured image into the same characteristic. The image capturing apparatus includes an image sensor that is provided with a first photoelectric conversion characteristic, a second photoelectric conversion characteristic being different from the first photoelectric conversion characteristic and a third photoelectric conversion characteristic being a transient characteristic between the first photoelectric conversion characteristic and the second photoelectric conversion characteristic; and a characteristic converting section to convert the first photoelectric conversion characteristic, the second photoelectric conversion characteristic and the third photoelectric conversion characteristic to a reference photoelectric conversion characteristic.

Abstract: A position detector (3) capable of obtaining an output having a linearity in a wide range includes: a magnetic field generating member (11) attached to a movable member (10) movable in a predetermined movable direction (x); and magnetic field detection means (12) for detecting a magnetic field change caused by movement of the magnetic field generating member (11). The magnetic field generating member (11) includes an N-pole portion (13) magnetized into N-pole, an S-pole portion (14) magnetized into S-pole arranged in the movable direction with the N-pole portion (13), and a non-magnetized portion (15) not magnetized between the N-pole portion (13) and the S-pole portion (14).

Abstract: A method for manufacturing a hologram optical substrate having a hologram element includes: a cutting process that employs a laminate sheet having a pair of protective sheets with a hologram photosensitive sheet peelably interposed therebetween, and makes a cut to a depth for cutting the hologram photosensitive sheet, the cut corresponding to a hologram element forming section; a first peeling process that peels the protective sheet having the cut; a sticking process that sticks a hologram photosensitive material of the hologram element forming section to an inclined surface of the optical substrate, with the hologram photosensitive material adhered to the other protective sheet; a second peeling process that peels the other protective sheet; an exposure process that exposes the hologram photosensitive material to a laser beam after the second peeling process; and a developing process that develops the exposed hologram photosensitive material so as to form a hologram element.

Abstract: The projection optical system uses a plurality of wavelengths or a wavelength band within a wavelength range from a visible region to a near ultraviolet region. The double-telecentric projection optical system includes: a first lens group with a positive power; a second lens group with a negative power, including a predetermined lens or lenses; and a third lens group with a positive power, including a stop and at least two positive lenses satisfying a predetermined condition relating to refractive index. The projection optical system satisfies a predetermined condition relating to a composite focal length of the first lens group and the second lens group, and a focal length of the third lens group.

Abstract: A video projection device has one of a plurality of types of projection lenses replaceably loaded and projects a video on a screen at a fixed position. The video projection device includes: a converter lens which is composed of a plurality of lenses, which is afocal as a whole, and which is detachably provided in front of the projection lens to convert projection magnification; and a gap adjustment mechanism changing a predetermined gap in the converter lens to a setting in accordance with at least one of a projection distance to the screen and the type of the projection lens loaded.

Abstract: A workspace control unit performs a process on a common work area screen for sharing information, and an information processor display transmission and reception unit transmits to a display of an information processor the common work area screen processed by the workspace control unit. An information processor manipulation detection unit detects manipulation performed on the common work area screen of the information processor. A peripheral control unit controls a peripheral based on control information managed by a peripheral control information management unit according to the result of detection by the information processor manipulation detection unit.

Abstract: The present invention provides an image pickup lens, an image pickup apparatus, and a mobile terminal The image pickup lens includes a lens group. The lens group includes a lens substrate which is a parallel flat plate, and lenses are formed on an object side surface and image side surface of the lens substrate, where a lens with a positive refractive power formed on the lens substrate has an Abbe number of vp and a lens with a negative refractive power formed on the lens substrate has an Abbe number of vn. The difference between the Abbe number vp and the Abbe number of vn satisfies 10<|vp?vn|.

Abstract: In one embodiment, an SMPS includes a rectifier for generating an input DC voltage from an input AC voltage. A switching transistor is coupled to a primary coil of a transformer for generating power which is transferred to a second side of the transformer according to an operation of the switching transistor. A switching controller receives a feedback voltage corresponding to an output voltage, a sensing signal corresponding to a current flowing through the switching transistor, and a first signal corresponding to a voltage difference between a first electrode and a second electrode of the switching transistor. The switching controller controls an on/off operation of the switching transistor. The switching controller sets a threshold period whenever the first signal has a value greater than a reference value, thereby setting a plurality of threshold periods during operation of the switching mode power supply.

Abstract: A volume-phase reflection hologram optical element is fabricated by exposing a hologram photosensitive material to two coherent light beams. One exposure light beam has an axis-asymmetric wavefront, and the other exposure light beam has focus points different in the optical axis direction (Z-direction) between on a plane (ZX-plane) including one of two directions (X- and Y-directions) mutually perpendicular on a sectional plane perpendicular to that light beam and on a plane (YZ-plane) including the other of those two directions. Thus, an image display apparatus is realized in which at the time of reproduction, the component of a predetermined wavelength of the image light diffraction-reflected by the hologram optical element is focused at positions different in the optical axis direction between on the ZX-plane and on the YZ-plane, offering different image viewing characteristics between in the X- and Y-directions.

Abstract: An object of the preset invention is to provide a technique capable of preventing occurrence of an assembly error. A driving apparatus for driving an object includes: a driving part having a stationary part and a moving part; and a displacement transmitting part for transmitting a displacement to the object in accordance with a drive displacement of the moving part. The displacement transmitting part and the moving part coupled to the displacement transmitting part are integrally molded.

Abstract: According to an embodiment of the present invention, a system is provided for driving at least one light-emitting diode (LED). The system includes an output terminal connectable to an anode of the LED and at which an output voltage can be provided for the LED. A driver loop, connectable to a cathode of the LED, is operable to maintain a LED current flowing through the LED at a desired level, thereby attenuating modulation error attributable to voltage variations at the cathode of the LED.

Abstract: Provided is an imaging lens, including, in order from an object side: a positive first lens; a second lens having a concave shape toward the object side; and (i?2) number of lens, wherein the i-th lens, which is the most image-side lens, includes: an i-th lens flat plate; and a positive or negative lens element on at least one of the opposite surfaces of the i-th lens flat plate, wherein the following conditional relationship is satisfied: 0.9>Ymax/Y>0.61, where: Ymax is a height of the most off-axial ray on an image-side surface of the (i?1)th lens; and Y is a maximum image height.

Abstract: System, method, and multi-level object data structure thereof for browsing a multi-media data, the method for browsing a multimedia data using a multilevel object data structure including the steps of (1) receiving multimedia information and multiple supplementary information on each object in the multimedia information on the same time, (2) separating the multimedia information and the multiple supplementary information, (3) displaying the multimedia information, and (4) browsing/searching supplementary information related to a particular object from the multiple supplementary information, and displaying the supplementary information when a user requests for browsing/searching the supplementary information related to the particular object.

Abstract: An image sensing apparatus includes: an image sensing device for sensing light representing a subject image; a first component extractor for extracting a first component having a predetermined frequency out of a photographic image obtained by the image sensing device; a second component extractor for extracting a second component having a frequency higher than the frequency of the first component out of the photographic image; a compressor for compressing a dynamic range of the first component extracted by the first component extractor with a predetermined compression ratio; an image generator for generating an image based on a compressed first component obtained by compressing the dynamic range of the first component by the compressor, and the second component extracted by the second component extractor; and a compression correction coefficient calculator for calculating a compression correction coefficient used in compressing the first component, using the second component extracted by the second component

Abstract: A power switch driver includes a top driver switch, a bottom driver switch, a driver node between them, and driver logic. The power switch driver can turn on the power switch by controlling a gate voltage of the power switch to a first voltage level and to turn off the power switch by controlling the gate voltage from a lower second voltage level. The driver logic may include a pulse width generator programmer and a pulse width generator. The pulse width generator is controlled by the pulse width generator programmer and an input signal. Some power switch drivers include a feedback loop, coupled to the driver node and to the driver logic. The feedback loop may include a track-and-hold circuit, coupled to the driver node, to the pulse width generator through an error amplifier and to the input terminal.