Abstract: An electric motor includes a stator and a rotor rotatable relative to the stator. The rotor includes an axial shaft, a disc projecting radially from the shaft, and a ring magnet affixed to the disc. The shaft and the disc are integrally formed as a unitary body.

Abstract: Approaches for encoding/transcoding of digital video based on subjective video quality preferences or display device characteristics or capabilities. A set of esthetic digital video preferences are received from a user via a user interface. The user may be associated with a supplier or provider of digital video or may be a viewer of the digital video. A video quality profile that describes the set of esthetic digital video preferences or the characteristics or capabilities of a display device is created and stored. Upon determining that a video quality profile is associated with a compressed digital video bit stream, a final rate of compression for the compressed digital video bit stream is determined using one or more video quality profiles. In this way, a user's subjective video quality preferences or the characteristics or capabilities of a display device can be considered in encoding/transcoding digital video.

Abstract: Approaches for transcoding on-the-fly (TOTF). A digital video is encoded to produce a set of encoding decisions. A video quality profile is created that describes the set of encoding decisions. Upon determining that the video quality profile is associated with a compressed digital video bit stream, a final rate of compression is determined, frame by frame, for the compressed digital video bit stream using the video quality profile. The final rate of compression may be determined either internal or external to an encoder/transcoder. The video quality profile may be created by reviewing a plurality of encoding decisions to determine which encoding decisions merit inclusion based on a variety of criteria.

Abstract: Methods and devices are described for driving ferroelectric perovskite oxide crystals to achieve polarization inversion with reduced coercivity. In some embodiments, the anisotropy in the potential energy surface of a ferroelectric material is employed to drive polarization inversion and switching with a reduced coercive field relative to uniaxial excitation. In some embodiments, polarization inversion with reduced coercivity is produced via the application of an electric field that exhibits a time-dependent orientation, in contrast with conventional uniaxial electrical excitation, thereby causing the central ion (and the crystal structure as a whole) to evolve along a lower-energy path, in which the central ion is driven such that it avoids the potential energy maximum. This may be achieved, for example, by applying at least two non-parallel time-dependent voltages (e.g. bias, potential) such that orientation of the electric field changes with time during the switching cycle.

Abstract: Approaches for encoding/transcoding of digital video based on subjective video quality preferences or display device characteristics or capabilities. A set of esthetic digital video preferences are received from a user via a user interface. The user may be associated with a supplier or provider of digital video or may be a viewer of the digital video. A video quality profile that describes the set of esthetic digital video preferences or the characteristics or capabilities of a display device is created and stored. Upon determining that a video quality profile is associated with a compressed digital video bit stream, a final rate of compression for the compressed digital video bit stream is determined using one or more video quality profiles. In this way, a user's subjective video quality preferences or the characteristics or capabilities of a display device can be considered in encoding/transcoding digital video.

Abstract: Approaches for transcoding on-the-fly (TOTF). A digital video is encoded to produce a set of encoding decisions. A video quality profile is created that describes the set of encoding decisions. Upon determining that the video quality profile is associated with a compressed digital video bit stream, a final rate of compression is determined, frame by frame, for the compressed digital video bit stream using the video quality profile. The final rate of compression may be determined either internal or external to an encoder/transcoder. The video quality profile may be created by reviewing a plurality of encoding decisions to determine which encoding decisions merit inclusion based on a variety of criteria.

Abstract: Methods and devices are described for driving ferroelectric perovskite oxide crystals to achieve polarization inversion with reduced coercivity. In some embodiments, the anisotropy in the potential energy surface of a ferroelectric material is employed to drive polarization inversion and switching with a reduced coercive field relative to uniaxial excitation. In some embodiments, polarization inversion with reduced coercivity is produced via the application of an electric field that exhibits a time-dependent orientation, in contrast with conventional uniaxial electrical excitation, thereby causing the central ion (and the crystal structure as a whole) to evolve along a lower-energy path, in which the central ion is driven such that it avoids the potential energy maximum. This may be achieved, for example, by applying at least two non-parallel time-dependent voltages (e.g. bias, potential) such that orientation of the electric field changes with time during the switching cycle.