G11B2220/2541

Reproduction device, reproduction method, and program
10455240 · 2019-10-22 · ·

The present technology relates to a reproduction device, a reproduction method, and a program which are capable of transferring information about a color gamut and a dynamic range of luminance of a content recorded in a recording medium to a display device. A reproduction device of the present technology includes: a readout unit configured to read out, from a recording medium recording a content, a file of a video stream and a file of reproduction management information used for reproducing the video stream and including monitor information indicating at least one of a color gamut and a dynamic range of luminance of a master monitor used for authoring the video stream; a decoding unit configured to decode the video stream; and an output unit configured to control an output of video data obtained by decoding the video stream and the monitor information included in the reproduction management information to a display device, depending on a performance of the display device to which the content is output. The present technology can be applied to a player that reproduces a content.

Reproduction device, reproduction method, and recording medium

The present technology relates to a reproduction device, a reproduction method, and a recording medium that enable content having a wide dynamic range of brightness to be displayed with an appropriate brightness. A recording medium, on which the reproduction device of an aspect of the present technology performs reproduction, records coded data of an extended video that is a video having a second brightness range that is wider than a first brightness range, brightness characteristic information that represents a brightness characteristic of the extended video, and brightness conversion definition information used when performing a brightness conversion of the extended video to a standard video that is a video having the first brightness range. The reproduction device outputs data of the extended video after adding frame information including the brightness characteristic information to frame data when information acquired from a display device that is to be an output destination of the video includes information representing a display performance of the extended video, and when no information representing the display performance of the extended video is included, outputs the data of the standard video. The present technology can be applied to a player that reproduces content.

Apparatus and method for recording and erasing user data on a recordable optical disc

An information recording apparatus includes: a first memory which stores synchronization data for updating data on a recordable optical disc and/or adding data to the recordable optical disc; a second memory which stores erasure information indicating data to be erased; and a controller which controls addition, update, and erasure of data on the optical disc. The controller records the synchronization data onto the optical disc. After recording the synchronization data, the controller records, onto the optical disc, management information indicating the state of the optical disc on which the synchronization data has been recorded and the state of the optical disc resulting from erasure according to the erasure information. Subsequently, the controller closes the session. After closing the session, the controller physically erases the data to be erased which has been recorded on the optical disc.

REPRODUCTION DEVICE, REPRODUCTION METHOD, AND RECORDING MEDIUM
20190246086 · 2019-08-08 ·

The present technology relates to a reproduction device, a reproduction method, and a recording medium capable of displaying graphics with a broader dynamic range of luminance and appropriate brightness.

An optical disc records STN_table associating HDR graphics, which are graphics having a second luminance range different from and broader than a first luminance range, with tone_mapping_info including HDR information indicating a luminance characteristic of the HDR graphics and tone_mapping_info, which is tone mapping definition information used when luminance conversion from the HDR graphics to STD graphics which are graphics having the first luminance range is performed, the HDR graphics, and the tone_mapping_info. The present technology is applicable to a recording medium recording graphics.

Data transferring device and data transferring method

A data transferring device and a data transfer method. The data transferring device for transferring an audio-visual stream stored in a first medium to a second medium, includes: a reader comprising reading circuitry configured to read the audio-visual stream from the first medium; and a controller configured to: extract an audio packet and a video packet from the audio-visual stream; write the audio packet and video packet to the second medium; and store, in a memory, first location information indicating locations at which the audio packet and the video packet are written in the second medium, and second location information indicating locations at which the audio packet and the video packet are read from the first medium.

Information processing apparatus, information processing method and program, and recording medium
10362287 · 2019-07-23 · ·

The present disclosure relates to an information processing apparatus, an information processing method and a program, and a recording medium that can generate graphics in colors in a predetermined dynamic range from the data of graphics of colors in a plurality of dynamic ranges. A processor identifies an SDR PDS that is an information item of a color in the SDR available for the graphics, an HDR PDS that is an information item of a color in the HDR available for the graphics from a graphics stream including the SDR PDS, and the HDR PDS, and a segment_type used to identify the SDR PDS and the HDR PDS on the basis of the segment_type. A CLUT management unit generates the SDR graphics on the basis of the SDR PDS identified by the processor. The present disclosure can be applied, for example, to a reproducing device.

Recording adjustment device, recording adjustment method, and program
10354687 · 2019-07-16 · ·

There is provided a recording adjustment device, a recording adjustment method, and a program of which enables recording compensation for an optical disc for a high-linear density to be realized. The recording adjustment device according to an embodiment of the present technique executes filter processing on the basis of a regenerative signal obtained by reproducing data recorded in a recording medium, and a recording pattern of marks and spaces of the data, identifies an impulse response of a system, calculates a difference in amplitude between an output from the filter processing after the identification of the impulse response and the regenerative signal every edge type, and detects a slope of a step response in the vicinity of an edge position.

RECORDING MEDIUM, REPRODUCING APPARATUS, AND REPRODUCING METHOD

In a recording medium on which is recorded a multiplexed stream including a plurality of first packets (V_main) constituting a first I-picture in a first video stream and a plurality of second packets (V_sub) constituting a second I-picture in a second video stream, information for identifying the first I-picture and information for identifying the second I-picture are recorded on the medium. A recording medium can thereby be obtained that enables the rapid detection, from a small amount of information, of a particular picture included in a stream such as a TS in which multiple content streams are multiplexed.

Scene graph for defining a stereoscopic graphical object
10332299 · 2019-06-25 · ·

A scene graph suitable for defining stereoscopic graphical objects, a method and an apparatus for creating such scene graphs, and a method and an apparatus for rendering graphical objects based on such scene graphs are described. The scene graph describes a spatial or a temporal arrangement of the stereoscopic graphical object and comprises information about image data for a base image for the stereoscopic graphical object, image data for a dependent image for the graphical object, and the spatial or the temporal arrangement of the base image and the dependent image. For a 3D rendering mode the graphical object is composed of the base image and the dependent image. For a 2D rendering mode the graphical object is composed of the base image only.

Method for displaying menu based on service environment analysis in content execution apparatus
10332566 · 2019-06-25 · ·

A method for displaying a menu based on a service environment analysis in a content execution apparatus is disclosed. In accordance with the method for displaying the menu based on the service environment analysis in the content execution apparatus of the present invention, a menu is displayed according to a menu information extracted from a storage media, wherein services available to a user from a content execution apparatus is determined and the menu information is updated according to the availability of services.