Abstract: There is provided a recording medium, a recording apparatus, a recording method, a reproducing apparatus, and a reproduction method that make it possible to correctly reproduce multilevel codes recorded at high density. A multilevel code of at least three ML values produced by coding user data into a (d,k)-RLL code of the ML values and a particular pattern of the ML values that includes a run of repeated codes which is greater than a maximum run k of the multilevel code are recorded on a recording medium. In addition, reproduction is performed from the recording medium, and the multilevel code is decoded according to the particular pattern. For example, the present technology can be applied to a recording medium, a recording/reproducing apparatus that performs recording on and reproduction from the recording medium, and the like.

Abstract: There is provided a signal processing device, a signal processing method, and a program capable of improving noise resistance in high linear density recording. Partial response (PR) equalization of a reproduced signal of multilevel codes of 3<=ML is performed and maximum likelihood decoding of an equalized signal obtained through the PR equalization is performed. The present technology can be applied to, for example, a recording/reproducing device or the like such as an optical disc.

Abstract: The present technology relates to a signal processing device, a signal processing method, and a program capable of improving noise resistance in high linear density recording. Partial response (PR) equalization of a reproduced signal of multilevel codes of 3<=ML is performed and maximum likelihood decoding of an equalized signal obtained through the PR equalization is performed. The present technology can be applied to, for example, a recording/reproducing device or the like such as an optical disc.

Abstract: There is provided a recording apparatus, a recording method, a reproduction apparatus, a reproduction method, a recording medium, an encoding apparatus, and a decoding apparatus which enable recording or reproduction to be easily implemented at high line density. User data is encoded into a multilevel edge code, and a multilevel code whose value changes in accordance with the multilevel edge code is recorded.

Abstract: There is provided a recording apparatus, a recording method, a reproduction apparatus, a reproduction method, a recording medium, an encoding apparatus, and a decoding apparatus which enable recording or reproduction to be easily implemented at high line density. User data is encoded into a multilevel edge code, and a multilevel code whose value changes in accordance with the multilevel edge code is recorded.

Abstract: There is provided a disk-type recording medium, a recording apparatus, a recording method, a reproducing apparatus, and a reproducing method, which are capable of recording, for example, data with high density and reproducing data recorded with high density robustly. In the disk-type recording medium, synchronization patterns for synchronization are recorded in two adjacent tracks with a shift in a track direction so that positions in the track direction do not overlap. The present technology can be applied to, for example, optical discs, other disk-type recording mediums, and the like.

Abstract: There is provided a signal processing apparatus and a signal processing method capable of allowing data recorded at a high density to be robustly reproduced. A frame sync (FS) is restored by performing maximum likelihood decoding of the FS according to a time-varying trellis with a state and a state transition being limited according to a time, in maximum likelihood decoding of a reproduction signal reproduced from a disk-shaped recording medium, the FS representing a head of a frame, the FS of the frame being arranged at the head of the frame, the FS being recorded at the same positions in a track direction in two adjacent tracks.

Abstract: There is provided a signal processing apparatus and a signal processing method capable of allowing data recorded at a high density to be robustly reproduced. A frame sync (FS) is restored by performing maximum likelihood decoding of the FS according to a time-varying trellis with a state and a state transition being limited according to a time, in maximum likelihood decoding of a reproduction signal reproduced from a disk-shaped recording medium, the FS representing a head of a frame, the FS of the frame being arranged at the head of the frame, the FS being recorded at the same positions in a track direction in two adjacent tracks.

Abstract: There is provided a disk-type recording medium, a recording apparatus, a recording method, a reproducing apparatus, and a reproducing method, which are capable of recording, for example, data with high density and reproducing data recorded with high density robustly. In the disk-type recording medium, synchronization patterns for synchronization are recorded in two adjacent tracks with a shift in a track direction so that positions in the track direction do not overlap. The present technology can be applied to, for example, optical discs, other disk-type recording mediums, and the like.

Abstract: Provided is an optical information recording medium including: a continuously wobbling groove formed in advance by a CAV or a zone CAV. Information is allowed to be recorded on the groove and a land adjacent to the groove, address information is recorded by modulating the wobble, the address information includes a sync pattern indicating a position of the address information and address data, and the sync pattern includes a plurality of first wobble patterns and a second wobble pattern between the first wobble patterns, and at least part of intervals of the first wobble patterns are set to unequal intervals.

Abstract: Data detection capability is improved by whitening crosstalk noise from an equalization signal and detecting binary data. Each of a plurality of detection signals is input to one of a plurality of adaptive equalizers, and outputs of the plurality of adaptive equalizers are computed to obtain an equalization signal for returning light at the time of shining of light onto bounds including a target track subject to data detection and adjacent tracks of an optical recording medium having a plurality of tracks formed thereon. Crosstalk noise from the adjacent tracks included in the equalization signal obtained by this multi-input adaptive equalization process is whitened first, followed by a binarization process. Also, an equalization error is found, and supplied as a control signal for adaptive equalization. Further, a whitening factor updating process is also performed to adaptively update a filter factor of a whitening filter.

Abstract: Data detection capability is improved by whitening crosstalk noise from an equalization signal and detecting binary data. Each of a plurality of detection signals is input to one of a plurality of adaptive equalizers, and outputs of the plurality of adaptive equalizers are computed to obtain an equalization signal for returning light at the time of shining of light onto bounds including a target track subject to data detection and adjacent tracks of an optical recording medium having a plurality of tracks formed thereon. Crosstalk noise from the adjacent tracks included in the equalization signal obtained by this multi-input adaptive equalization process is whitened first, followed by a binarization process. Also, an equalization error is found, and supplied as a control signal for adaptive equalization. Further, a whitening factor updating process is also performed to adaptively update a filter factor of a whitening filter.

Abstract: An acceleration sensation presentation apparatus includes: a frame to be worn on the head of a user; at least one or more weights provided to the frame; and a vibration driving unit configured to vibrate the weight to be moved.

Abstract: A data processing device includes a signal processing unit that performs timing recovery of sampling timing, in such a manner that a sampled value is obtained at sampling timing which is set as a target by phase interpolation processing according to a feed-forward control, with respect to sampling data which is obtained from a recovery signal.

Abstract: Provided is an optical information recording medium including: a continuously wobbling groove formed in advance by a CAV or a zone CAV. Information is allowed to be recorded on the groove and a land adjacent to the groove, address information is recorded by modulating the wobble, the address information includes a sync pattern indicating a position of the address information and address data, and the sync pattern includes a plurality of first wobble patterns and a second wobble pattern between the first wobble patterns, and at least part of intervals of the first wobble patterns are set to unequal intervals.

Abstract: An acceleration sensation presentation apparatus includes: a frame to be worn on the head of a user; at least one or more weights provided to the frame; and a vibration driving unit configured to vibrate the weight to be moved.

Abstract: An acceleration sensation presentation apparatus includes: a frame to be worn on the head of a user; at least one or more weights provided to the frame; and a vibration driving unit configured to vibrate the weight to be moved.

Abstract: An acceleration sense presentation apparatus includes a vibrator group including a plurality of vibrators; an input unit to which information having directivity is inputted; and a vibration control unit for continuously switching a vibrator to be vibrated based on the information having directivity.

Abstract: A data processing device includes a signal processing unit that performs timing recovery of sampling timing, in such a manner that a sampled value is obtained at sampling timing which is set as a target by phase interpolation processing according to a feed-forward control, with respect to sampling data which is obtained from a recovery signal.

Abstract: An acceleration sensation presentation device which is attached to a vicinity of head of a user, the device including one or a plurality of spindles; and a spindle driving unit which generates a force in a direction different from a predetermined direction by moving the spindle in the predetermined direction.