Abstract: A speaker device mixes an audible frequency band signal wave with a modulated wave obtained by modulating an ultrasonic frequency band carrier wave with an audible frequency band signal so as to generate a synthesis wave, and drives an ultrasonic transducer with the synthesis wave so as to reproduce a signal sound.

Abstract: A liquid ejection device includes: a drive waveform generator generating a drive waveform signal; a modulator performing pulse modulation on a signal from the drive waveform generator to provide a modulated signal; a digital power amplifier performing power amplification on the modulated signal to provide an amplified digital signal; a Lowpass Filter smoothing the amplified digital signal to provide a drive signal of an actuator; a compensator advancing the phase of the drive signal to provide a negative feedback signal; and a subtractor providing a differential signal between the drive waveform signal and the negative feedback signal as an input signal to the modulator.

Abstract: A liquid ejecting apparatus includes: a Modulator that performs pulse modulation for a drive waveform signal that becomes a reference for a drive signal of an actuator so as to acquire a modulated signal; a digital power amplifier that amplifies the power of the modulated signal so as to acquire a amplified digital signal; a low pass filter that smoothes the amplified digital signal so as to acquire the drive signal; a variable power source circuit that can change a power source voltage of the digital power amplifier; and a power source voltage control unit that controls changes in the power source voltage in units of a driving pulse that configures the drive signal of the actuator and can independently drive the actuator.

Abstract: A liquid crystal display device (100) (display device) of the present invention includes a liquid crystal panel (20) including a liquid crystal layer (23) between an active matrix substrate (21) and a counter substrate (22). The liquid crystal display device (100) has an area sensor function that detects an input position of an external input by detecting an image on a surface (100a) (target surface for detection) of the liquid crystal panel (20). The liquid crystal display device (100) includes: the liquid crystal panel (20) (position detecting section) including a plurality of optical sensor elements (30) detecting an intensity of light received, the liquid crystal panel (20) detecting the input position by causing the plurality of optical sensor elements to detect the image on the surface of the liquid crystal panel; and a reflectance changing section (45) changing a reflectance of light in response to application of pressure onto the surface (100a) of the liquid crystal panel (20).

Abstract: A liquid ejection apparatus which, by applying a drive voltage waveform to a piezoelectric element which drives an ejection nozzle, ejects a liquid from the ejection nozzle. The apparatus includes a reference voltage generating unit which generates a plurality of reference voltages, a drive voltage waveform data storage unit classifies the drive voltage waveform as either a voltage increasing section, decreasing section, or holding section, and stores drive voltage waveform data including a required time of a waveform section configuring the drive voltage waveform, and a voltage, selected from the plurality of reference voltages for the waveform section. The apparatus also includes a drive voltage waveform application unit which, in accordance with information relating to an adjustment of the ejection amount of the liquid ejected from the ejection nozzle, changes the required time included in the drive voltage waveform data, and applies the drive voltage waveform to the piezoelectric element.

Abstract: A pneumatic tire includes a carcass ply with carcass cords. The carcass cords comprise high tenacity vinylon fiber, polyethylene naphthalate fiber or polyalylate fiber. Viscoelasticity characteristics per one cord at 120° C. of the carcass cord satisfy the following equations (1) to (3): B>0??(1) B?0.0000437×A+0.042857??(2) B??0.00003636×A+0.163636??(3) (wherein “A” represents a product of complex modulus E*(N/cm2) and cross-sectional area “S” (cm2) of cord), and “B” represents a loss tangent tan?).

Abstract: A runflat tire having an improved runflat durability and including sidewall-reinforcing rubber layer 10 having a crescent-shaped cross section disposed axially inward of carcass 6 in sidewall portion 3, wherein the carcass 6 comprises at least one carcass ply 6A in which carcass cords made of an aramid fiber or a polyethylene naphthalate fiber are arranged at an angle of 70 to 90° with respect to the circumferential direction and are covered with a topping rubber.

Abstract: A load driving circuit includes first storage elements charged by a power supply and a series storage element group constituting unit that switches the connection state between the first storage elements to constitute a series storage element group in which the first storage elements are connected in series. A second storage element charging unit charges a second storage element using the series storage element group. Switching is performed between first and second connection states to apply voltage to the load. In the first connection state, the charged second storage element and the series storage element group are connected to the load while the second storage element and the series storage element group are connected in series. In the second connection state, the series storage element group is connected to the load while the series connection between the second storage element and the series storage element group is broken.

Abstract: In a liquid crystal display device having a light diffuser, a desired luminance distribution is realized and displaying with a high contrast ratio across a broad angle range is performed. A liquid crystal display device according to the present invention includes a liquid crystal display panel for modulating light emitted from a light source, and a light diffuser being disposed at a viewer's side of the liquid crystal display panel. The light diffuser is a prism sheet including a plurality of prisms, each prism having: a first prism section including a first slope slanted at a first angle with respect to the display surface normal direction; and a second prism section including a second slope slanted with respect to the display surface normal direction at a second angle different from the first angle and being disposed at the viewer's side of the first prism section.

Abstract: The pneumatic tire of the present invention, in which a tread rubber, a sidewall rubber, and a breaker rubber each have an intrinsic volume resistivity of 1×108 ?·cm or more, a clinch rubber and a chafer rubber each have an intrinsic volume resistivity of 1×108 ?·cm or less, wherein the pneumatic tire has a first conductive layer that is disposed between a carcass ply, an edge portion of the breaker rubber and the sidewall portion, a second conductive layer that is in contact with the first conductive layer and is disposed between the tread rubber and the carcass, and a pen rubber layer that extends from the second conductive layer to a surface of the tread portion, wherein the first conductive layer, the second conductive layer, and the pen rubber layer each have an intrinsic volume resistivity of 1×108 ?·cm or less, the carcass ply contains a conductive fibrous material having an intrinsic volume resistivity of 1×108 ?·cm or less and has a structure that the carcass ply is in contact with the clinch portion

Abstract: An ultrasonic transducer includes: a fixed electrode having corrugations on the surface; a vibrating film having an electrode layer and disposed on the surface of the fixed electrode; and a holding member which holds the fixed electrode and the vibrating film. The ultrasonic transducer is driven by applying an AC signal between the electrode layer of the vibrating film and the fixed electrode, and generates a sound pressure of at least 120 dB within a frequency range from 20 kHz to 120 kHz.

Abstract: A power amplifier includes: a modulator pulse-modulating a drive waveform signal serving as a reference of a drive signal applied to actuators and outputting a modulated signal; a digital power amplifier amplifying the power of the modulated signal and outputting an amplified digital signal; a low pass filter smoothing the amplified digital signal and outputting the drive signal; and an inverse filter circuit being disposed at a front stage of the modulator and capable of obtaining a desired waveform precision of the drive signal even when a frequency characteristic of a filter including the low pass filter and an electrostatic capacitor of the actuators varies depending on the number of driven actuators, wherein the inverse filter circuits include a plurality of inverse filters connected in series.

Abstract: A capacitive load driving circuit that drives a capacitive load, includes: a power supply unit that generates different voltages; a plurality of charge storage elements that are charged with the different voltages generated by the power supply unit; and a load driving section that connects a charge storage element arbitrarily selected from the plurality of charge storage elements to the capacitive load to drive the capacitive load, and connects, when at least two of the charge storage elements are selected, the at least two charge storage elements to the capacitive load in a state where the at least two charge storage elements are connected in series.

Abstract: A capacitive load driving circuit that drives an electrical load having a capacitive component, includes: a first power supply generating a first voltage; a second power supply generating a second voltage different from the first voltage; a plurality of charge storage elements charged by the first power supply; a first connection unit that connects the plurality of charge storage elements to the electrical load by switching connections among the charge storage elements; and a second connection unit that connects the second power supply to the electrical load.

Abstract: A method of controlling an output of an ultrasonic speaker that reproduces audible-frequency-band signal sounds by modulating carrier waves with audible-frequency-band signal waves output from a signal source and driving an ultrasonic transducer with the modulated waves includes: dividing the audible-frequency-band signal waves into a plurality of frequency bands; separately adjusting amplitudes of the signal waves and amplitudes of the modulated waves in the respective frequency bands; and driving a plurality of ultrasonic transducers provided corresponding to the respective frequency bands with the modulated waves generated corresponding to the respective frequency bands.

Abstract: A wiring substrate for mounting semiconductors is provided with an insulation film, wires formed in the insulation film, and a plurality of electrode pads that electrically connect to the wires through vias. The electrode pads are provided to have their surfaces exposed to both of the front surface and the rear surface of the insulation film, and at least a part of the side surface of the electrode pads is buried in the insulation film. The insulation film is formed by forming electrode pads on the respective two metallic plates, thereafter, laminating an insulation layer and wires on the respective metallic plates to cover the electrode pad, and adhering the insulation layers to each other for integration, and thereafter, removing the metallic plates.

Abstract: In a soldering method for mounting a semiconductor device on a wiring board, a plurality of solid-phase solders are provided between the semiconductor device and the wiring board, and are thermally melted to thereby produce a plurality of liquid-phase solders therebetween. A constant force is exerted on the liquid-phase solders by relatively moving the semiconductor device with respect to the wiring board so that an invariable gap is determined between the semiconductor device and the wiring board.

Abstract: A fluid ejection device includes: a modulator adapted to pulse-modulate a drive waveform signal forming a basis of a drive signal of an actuator to obtain a modulated signal; a digital power amplifier circuit adapted to power-amplify the modulated signal to obtain a power-amplified modulated signal; a low pass filter adapted to smooth the power-amplified modulated signal to obtain the drive signal; and a power amplification stopping section operating when holding a voltage of the actuator constant.

Abstract: A method for coding mask data containing information indicating, for each pixel, presence of thinning of image data in order to perform multipass recoding for a predetermined area of a recording medium by N (N: integer of 2 or more) times, includes acquiring a plurality of mask data, assigning a code represented by a number of bits smaller than N based on information contained in the same address of the acquired mask data and use-order of the mask data, and generating coded data containing the assigned code corresponding to an arrangement of the address that the mask data retains information thereof.

Abstract: It is an object of the present invention to reduce fretting between strands in a steel cord, to suppress reduction in cord strength caused by running, to enhance rubber penetrability, and to improve tire durability. The steel cord includes a cord main portion 19 of a triple layer-stranding structure including: a core 16 formed from one core strand f1, an inner sheath 17 including N (2 to 5) inner sheath strands f2 stranded with a stranding pitch Pi around the core; and outer sheath 18 formed from M (6 to 11) outer sheath strands f3 stranded with a stranding pitch Po around the inner sheath. Diameters of the strands f1, f2 and f3 are equal to each other, and stranding directions of the sheaths 17 and 18 are the same. A difference (|Ai?Ao|) between a stranding angle Ai of the inner sheath strand f2 and a stranding angle Ao of the outer sheath strand f3 is greater than 1° and smaller than 3°.