Abstract: Provided is a leakage current value calculation device which precisely calculates a leakage current I0r which is a component caused by a ground insulation resistance value of an electric circuit, in the leakage current I0 flowing through the electric circuit.

Abstract: Provided is a leakage current calculation device capable of calculating an accurate leakage current value in which the effect of noise has been suppressed.

Abstract: A signal generation device and a signal generation method may measure leakage currents, such as an input current value I and phase-shifted current values I cos ? and I sin ? in a short period of time and automatically output the detected values without calculating a vector of a phase difference. The signal generation device generates logical signals from a voltage waveform and a current waveform of a measured power line through first and second comparators, sets parameters, full-wave rectifies the current waveform, and performs quantization transform on the full-wave rectified current waveform using a successive ??ADC.

Abstract: A wireless charger installed with a two-dimensional moving mechanism which is simply configured, inexpensive and can be easily miniaturized is provided wherein a table is freely moved in the X-axis direction and the Y-axis direction. In the two dimensional moving mechanism, each pair of X axis pinions are arranged to simultaneously mesh with teeth near both ends of each rack arranged on an X axis slider and Y axis slider respectively. Each pair of pinions are driven by each motor and rotated in synchronization.

Abstract: The present invention discloses a wireless battery charger of moving coil type that moves a table (15) that mounts a transmitter coil (14) freely in an X-axis direction and in a Y-axis direction having a fixing guide (21), an X-axis slider (6) a Y-axis slider (9), a motor (10), a power transfer means (11) that transfers power of the motor to one of the X-axis slider or the Y-axis slider, a power distribution part (12) that distributes the power of the motor transferred to one slider to another slider, and the table (15) that mounts the transmitter coil (14) wherein the transmitter coil mounted on the table can move freely by transferring the power of the motor to both the one slider and the another slider. Therefore a structure of the battery charger can be simplified, the battery charger can be cheaper and electrical efficiency can be improved.

Abstract: A wireless charger installed with a two-dimensional moving mechanism which is simply configured, inexpensive and can be easily miniaturized is provided wherein a table is freely moved in the X-axis direction and the Y-axis direction. In the two dimensional moving mechanism, each pair of X axis pinions are arranged to simultaneously mesh with teeth near both ends of each rack arranged on an X axis slider and Y axis slider respectively. Each pair of pinions are driven by each motor and rotated in synchronization.

Abstract: The present invention relates to a clamping apparatus for a disc player which is able to accurately release a clamper from a turntable while improving miniaturization and thinning.

Abstract: The present invention relates to a disc loading apparatus that has the capability of simplifying the assembly while improving thinning and reducing the number of components. With a disc loading apparatus according to the present invention, a portion of a top panel of the frame is designed to be a second mounting unit and another portion of the top panel to be a first mounting unit, the upper surface of the second mounting unit is sagged downward more than the lower surface of the first mounting unit, notches are provided appropriately at the steeped unit between the first and the second mounting units, the second mounting unit is a portion of the disc guide, the interlocking mechanism is mounted on the upper surface of the second mounting unit, and the pair of disc detection members is mounted on the lower surface of the first mounting unit, and these detection members are arranged throughout the lower surface of the first mounting unit and the upper surface of the second mounting unit through the notches.

Abstract: An object of the present invention is to provide a disc guide of a disc carrying device composed of a guide plate made from a metal plate and guide projections made of a synthetic resin, and that can be easily produced at low cost.

Abstract: An audio-player comprises a loading-unit, a memory, an operating-unit, a dubbing-unit, a playback-unit, and a display-unit. The loading-unit loads a disc. The memory has a plurality of data-memory-areas. The operating-unit has direct keys for selecting the specific data-memory-area in the plurality of data-memory-areas. The dubbing-unit dubs sound-data recorded on the disc with a proper disc identification number which the disc has, into the data-memory-area selected by the direct key. The playback-unit plays back the sound-data stored in the selected memory area. The display-unit has a quantity-display-area and a location-display-area. The quantity-display-area has a plurality of display parts. The quantity of memory used for storing the sound-data in each of the data-memory-areas is indicated in each of the display parts. The location where the sound-data is being played back from or is stored in the memory, is indicated in the location-display-area.

Abstract: It is sought to simplify the arrangement of the drive power switching system for an acoustic apparatus, thus permitting immediate switching of the drive power. A drive power switching system comprises driven gears always in mesh with a main drive gear located between a first and a second gear and a rocking member rotatably supporting the driven gears. The inter-axis distance between the axes of rotation of the first and second gears, is set to a length, in which the driven gears can be meshed with both the first and second gears as they are revolved together with the revolution of the rocking member.

Abstract: The invention seeks to provide a disc centering device of simple arrangement in a disc player for laying large and small size discs. One of paired, i.e., left and right, leading members and a trigger member also serve as a pair of small size disc stoppers, and the other leading member is provided with the sole function of correcting the deviation of the small size discs. Thus, the problem of the difficulty of positioning by providing the paired leading members with stopper function, is solved with a simple arrangement.

Abstract: The invention seeks to provide a disc centering device of simple arrangement in a disc player for laying large and small size discs. One of paired, i.e., left and right, leading members and a trigger member also serve as a pair of small size disc stoppers, and the other leading member is provided with the sole function of correcting the deviation of the small size discs. Thus, the problem of the difficulty of positioning by providing the paired leading members with stopper function, is solved with a simple arrangement.

Abstract: An audio-player comprises a loading-unit, a memory, an operating-unit, a dubbing-unit, a playback-unit, and a display-unit. The loading-unit loads a disc. The memory has a plurality of data-memory-areas. The operating-unit has direct keys for selecting the specific data-memory-area in the plurality of data-memory-areas. The dubbing-unit dubs sound-data recorded on the disc with a proper disc identification number which the disc has, into the data-memory-area selected by the direct key. The playback-unit plays back the sound-data stored in the selected memory area. The display-unit has a quantity-display-area and a location-display-area. The quantity-display-area has a plurality of display parts. The quantity of memory used for storing the sound-data in each of the data-memory-areas is indicated in each of the display parts. The location where the sound-data is being played back from or is stored in the memory, is indicated in the location-display-area.

Abstract: The present invention seeks to provide a disc transfer apparatus, which permits increasing the disc kick-off extent while holding a constant distance between a transfer roller and a turntable. A disc transfer apparatus is disclosed, which can choose either one of a play-back base fixing mode, in which a transfer roller is held at a disc transfer position while restricting motion of the play-back base relative to a housing, thereby permitting loading/unloading of disc, and a play-back base release mode, in which the transfer roller is held at a non-disc transfer position while holding the play-back base in a floating state relative to the housing.

Abstract: The present invention relates to restrict a disk playing base plate against movement in back-and-forth directions, lateral directions and vertical directions relative to a housing by making use of the movement of a roller holder supporting a disk carrier roller. A pair of (i.e., left and right) side plates 11 of the roller holder has roller holder contact parts for restricting movement in the back-and-forth, lateral and vertical directions, and the top and bottom plates of the housing have housing contact parts corresponding to the roller holder contact parts. When a disk carrier roller is in a disk carrying position, the front part of the disk playing base plate is restricted against movement in the back-and-forth, lateral and vertical directions relative to the housing.

Abstract: It is sought to simplify a disc centering device. Stopper portions for centering a small-size disc are provided on disc sensors, and guide portions are provided, which, when the disc sensors are moved with insertion of a large-size disc, engage with the disc sensors to move the stopper portions to the outside of a disc transport path.

Abstract: It is sought to insulate a stator body and lead lines of coils from one another and provide a coil wiring member for a movable magnet type linear motor, which provides for good operability of interconnecting the lead lines and inexpensive in price. In a movable magnet type linear motor comprising a stator having coils and a mover mainly having permanent magnets and movable in the longitudinal direction of the stator, a coil wiring member according to the invention is made of a non-conductive material, has a gutter-like shape open at the top and is fitted in a groove formed in the stator body such as to cover the inner groove surfaces.

Abstract: It is sought to simplify the arrangement of the drive power switching system for an acoustic apparatus, thus permitting immediate switching of the drive power. A drive power switching system comprises driven gears always in mesh with a main drive gear located between a first and a second gear and a rocking member rotatably supporting the driven gears. The inter-axis distance between the axes of rotation of the first and second gears, is set to a length, in which the driven gears can be meshed with both the first and second gears as they are revolved together with the revolution of the rocking member.