Abstract: According to one embodiment, an isolator includes a first coil, a second coil, a plate-shaped first magnet, and a first insulator. The second coil is aligned with the first coil along a first axis and faces the first coil. The first magnet is provided on a side of the second coil and faces the second coil, the side being opposite to a side where the first coil is located. The first magnet extends along a first plane intersecting the first axis. The first insulator seals the first coil, the second coil, and the first magnet.

Abstract: According to one embodiment, an isolator includes: a first semiconductor chip; a second semiconductor chip; a first wiring board including a first surface provided thereon with the first semiconductor chip; a second wiring board including a second surface provided thereon with the second semiconductor chip, the second wiring board being spaced apart from the first wiring board; a third wiring board spaced apart from each of the first and second wiring boards; a first coil on the first surface; a second coil on the second surface; a third coil on a third surface of the third wiring board, the third surface facing the first and second surfaces, the third coil facing the first coil; a fourth coil on the third surface, facing the second coil, and electrically coupled to the third coil; and an insulator provided between the first to fourth coils.

Abstract: According to one embodiment, an isolator includes: an isolator module including a first coil and a second coil that are separated with respect to a first direction and face each other; a magnetic member provided on the isolator module in such a manner that the magnetic member overlaps the first coil and the second coil when viewed in the first direction; and an insulating member covering the isolator module and the magnetic member.

Abstract: Information searching apparatus and method and a transmission medium with which an edition point can be detected simply from coded data without decoding all the coded data. Particularly, in the present invention, an audio signal is divided into plural blocks on the frequency axis every predetermined time (every predetermined frame), and a scale factor serving as a floating coefficient and a word length are coded as a parameter. In a recording medium are recorded coded audio data and the parameters together with the number Ni of the parameters. In a high-speed searching operation, the parameter number Ni is extracted, and a frame for which the parameter Ni varies stepwise is detected as the edition point.

Abstract: A recording medium and a picture display system in which multiplexed data recorded on a recording medium sold only in a specified territory or multiplexed data broadcast for a specified territory can be displayed only on a decoding reproducing system sold or installed only in such territory. Multiplexed data including a territory code are recorded on a recording medium. This territory code is compared to the inner territory code in the decoding device and, if the territory code of the recording medium includes the inner territory code of the decoding unit, the recording medium is decoded and reproduced. In the multiplexed data, allowable period data is stated in association with the territory code. This allowed period is compared to the date of a calendar generator in the decoding unit. If the date of the calendar generator is comprised within the allowed period, the recording medium is decoded and reproduced.