Abstract: An electrostatic loudspeaker includes: a vibrating member; an electrode disposed so as to be opposed to the vibrating member; a spacer member disposed on an opposite side of a face of the electrode, which is opposed to the vibrating member, and having acoustic transmission property; and a cover member disposed on an opposite side of a face of the spacer member, which is opposed to the electrode, and having waterproof property and insulation property.

Abstract: An electrostatic loudspeaker includes: a vibrating member; an electrode disposed so as to be opposed to the vibrating member; a spacer member disposed on an opposite side of a face of the electrode, which is opposed to the vibrating member, and having acoustic transmission property; and a cover member disposed on an opposite side of a face of the spacer member, which is opposed to the electrode, and having waterproof property and insulation property.

Abstract: An inserting type earphone device is broken down into a signal-to-sound converter, an ear pad to be inserted into an acoustic meatus of user, a sound tube provided between the signal-to-sound converter and the ear pad and a switching mechanism provided in association with the sound tube and ear pad, and a sound hole, which is formed in the sound tube for connecting a sound propagation hole to the outside, is open to and closed with the switching mechanism; the switching mechanism makes the sound hole open and closed through rotation thereof around the sound tube so that the ear pad is not inclined in the acoustic meatus during the rotation, whereby the ear pad is not dropped off from the acoustic meatus.

Abstract: An inserting type earphone device is broken down into a signal-to-sound converter, an ear pad to be inserted into an acoustic meatus of user, a sound tube provided between the signal-to-sound converter and the ear pad and a switching mechanism provided in association with the sound tube and ear pad, and a sound hole, which is formed in the sound tube for connecting a sound propagation hole to the outside, is open to and closed with the switching mechanism; the switching mechanism makes the sound hole open and closed through rotation thereof around the sound tube so that the ear pad is not inclined in the acoustic meatus during the rotation, whereby the ear pad is not dropped off from the acoustic meatus.

Abstract: A key actuating system (1) of a keyboard musical instrument is provided which helps quickly push the keys by reducing reaction force with respect to force of pushing the keys during manual operation, and which supports a person having less strength to play the keyboard musical instrument. The key actuating system for a keyboard musical instrument generates a sound when a key (3) is pushed including: a pressure detection sensor (11) detecting a pushing pressure on the key; a status detection sensor (13) detecting a movement status of the key: an actuator (15) actuating the key in a pushing direction of the key; and a control portion (19), when the pressure detection sensor detects the pushing pressure and the status detection sensor detects motion of the key, controls operations of the actuator in order to maintain the detected pressure by the pressure detection sensor at a pressure threshold which is in a range larger than 0 and smaller than a pushing pressure on the key which is necessary for making a sound.

Abstract: In a fuel cell equipped vehicle (10), a fuel cell (30) is accommodated in a first recess portion (22) which forms part of a floor panel (20) of a vehicle passenger room (R1) and which is provided below front seats (60), with an upper portion of the fuel cell (30) protruding above a reference plane (20a) of the floor panel (20). That is, the fuel cell (30) is disposed inside the vehicle passenger room (R1) and is protected from dust or slop. Accordingly, maintenance of the fuel cell (30) is easier to carry out in comparison with a case where it is exposed to dust or slop.

Abstract: A key driving apparatus for driving a key may include, but is not limited to, a first elastically deformable unit. The first elastically deformable unit is configured to receive a first control voltage. The first elastically deformable unit is configured to show elastic deformations of stretch and shrinkage based on the level of the first control voltage. The first elastically deformable unit is configured to allow the key to be driven by the elastic deformations of stretch and shrinkage of the first elastically deformable unit.

Abstract: In a musical keyboard instrument, a keyboard having a plurality of keys that pivotally move about a frame is mechanically isolated from a tone generator having a plurality of operating members allowing musical tones to be generated in response to the keys being depressed. A plurality of key-depression detection devices are arranged for the keys so as to detect the key-depression operations applied to the keys. A drive control device drives the operating members so as to generate musical tones in response to key-depression signals output from the key-depression detection devices upon detection of the key-depression operations applied to the keys. Thus, it is possible for the player, in particular, a weak person, to easily and rapidly perform key-depression operations, thus realizing desired musical performance of the musical keyboard instrument.

Abstract: A key actuating system (1) of a keyboard musical instrument is provided which helps quickly push the keys by reducing reaction force with respect to force of pushing the keys during manual operation, and which supports a person having less strength to play the keyboard musical instrument. The key actuating system for a keyboard musical instrument generates a sound when a key (3) is pushed including: a pressure detection sensor (11) detecting a pushing pressure on the key; a status detection sensor (13) detecting a movement status of the key: an actuator (15) actuating the key in a pushing direction of the key; and a control portion (19), when the pressure detection sensor detects the pushing pressure and the status detection sensor detects motion of the key, controls operations of the actuator in order to maintain the detected pressure by the pressure detection sensor at a pressure threshold which is in a range larger than 0 and smaller than a pushing pressure on the key which is necessary for making a sound.

Abstract: A key driving apparatus for driving a key may include, but is not limited to, a first elastically deformable unit. The first elastically deformable unit is configured to receive a first control voltage. The first elastically deformable unit is configured to show elastic deformations of stretch and shrinkage based on the level of the first control voltage. The first elastically deformable unit is configured to allow the key to be driven by the elastic deformations of stretch and shrinkage of the first elastically deformable unit.

Abstract: A thermoelectric module is constituted by a pair of substrates having electrodes, which are arranged opposite to each other with a prescribed space therebetween, in which a prescribed number of thermoelectric elements are arranged in such a way that a p-type and an n-type are alternately arranged, so that the thermoelectric elements are connected in series or in parallel together with the electrodes. Herein, one substrate is a heat absorption side, and other substrate is a heat radiation side. In addition, a current density in a current transmission area of the heat-absorption-side electrode is set to 50 A/mm2 or less, and a height of the thermoelectric element is set to 0.7 mm or less. Furthermore, a temperature-controlled semiconductor module can be realized by combining a thermoelectric module with a semiconductor component such as a semiconductor laser.

Abstract: A portable device including, a plurality of speakers which output a stereophonic sound or a surround sound. The plurality of speakers are separated into at least two groups of speaker, and the at least two groups of speaker are positioned apart from each other. In addition, the portable device further comprises an object which is positioned between the at least two groups of speakers.

Abstract: In a fuel cell vehicle 10, a left wheel motor 11 and a right wheel motor 12 are respectively provided as in-wheel motors to rotate a left front wheel FRW and a right front wheel FLW. Compared with a common motor used to rotate both the left front wheel and the right front wheel, the wheel motors 11 and 12 have smaller dimensions to define a relatively large space between the two motors 11 and 12 (inter-motor space S) in a front vehicle chamber 61. The fuel cells 20 are placed with some margins in this sufficiently large inter-motor space S.

Abstract: In a portable telephone having a rechargeable battery, an electrically conductive outer cover of the rechargeable battery is connected at a plurality of locations to a ground layer of a circuit board provided within the portable telephone.

Abstract: A thermoelectric module is constituted by a pair of substrates having electrodes, which are arranged opposite to each other with a prescribed space therebetween, in which a prescribed number of thermoelectric elements are arranged in such a way that a p-type and an n-type are alternately arranged, so that the thermoelectric elements are connected in series or in parallel together with the electrodes. Herein, one substrate is a heat absorption side, and other substrate is a heat radiation side. In addition, a current density in a current transmission area of the heat-absorption-side electrode is set to 50 A/mm2 or less, and a height of the thermoelectric element is set to 0.7 mm or less. Furthermore, a temperature-controlled semiconductor module can be realized by combining a thermoelectric module with a semiconductor component such as a semiconductor laser.

Abstract: A portable radio terminal includes a radio communication section, radio terminal body, display screen, input buttons, and control section. The performs radio communication of a signal through a radio channel. The radio terminal body incorporates the radio communication section. The display screen is formed on the front surface of the radio terminal body to display functions. The input buttons include a plurality of operation buttons arranged near the display screen. The operation buttons have functions displayed at corresponding positions within the display screen. The control section executes a function in accordance with operation of the operation button.

Abstract: A portable communication apparatus which can atop the alert indicating the occurrence of an incoming call while holding the incoming call is disclosed. A silence function is assigned to at least one key for an alert operation mode. When starting an alert due to an incoming call, the alert is stopped while holding the incoming call when a key having the silence function assigned thereto is operated. A response function in assigned to at least one of the plurality of keys for an alert stopped mode. The response to the incoming call held is performed when a key having the response function assigned thereto is operated.

Abstract: Smoke and nitrogen oxide in exhaust gases of diesel engines are reduced by burning a diesel fuel composition having a major portion of diesel fuel and 0.1 to 40 vol. % of a carbonic acid diester of the formula: in which R represents a lower hydrocarbon group having 1 to 6 carbon atoms, in a diesel engine by injecting the diesel fuel composition into a crank case at an injection timing of 17 to 2° CA, preferably, 14 to 8° CA, in terms of BTDC. EGR (exhaust gas recirculation system) is advantageously employable.

Abstract: In a liquid crystal display control system for performing a display on a liquid crystal panel, a control arrangement is provided for controlling connection between a driver circuit and each of common lines in the liquid crystal panel. The common lines are arranged to form a lattice fashion in cooperation with segment lines in the liquid crystal panel.

Abstract: A magnetic detecting apparatus including a magnetic sensor for detecting the displacement of a member which is detected by a variation in the voltage, a sampler for sampling the voltage detected by the magnetic sensor at the required period, and a voltage power supplier for supplying the required power supply voltage to the magnetic sensor only while the sampler samples the voltage.