# US 10,455,240 B2 · Reproduction device, reproduction method, and program > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,455,240 B2 - Document ID: US10455240B2 - Status: Granted - Kind: B2 - Application number: 15/562,068 - Filed: 2015-04-15 - Published: 2018-03-08 - Granted: 2019-10-22 - Earliest claimed: 2015-04-15 - Assignees: Sony Corporation - Applicants: Sony Corporation - Inventors: Shinobu Hattori; Kazuo Yamamoto - Web page: https://patentgrep.com/patent/US10455240B2 ## CPC - H04N 19/186: the unit being a colour or a chrominance component - G11B 31/00: Arrangements for the associated working of recording or reproducing apparatus with related apparatus (with cameras or projectors G03B31/00 {; recording/reproducing of music for electrophonic musical instruments G10H1/0033; automatic arrangements for answering calls or for recording messages for absent subscribers H04M1/64; telephonic communication systems adapted for combination with dictation recording and playback systems H04M11/10; connection of TV recorder with other related apparatus, e.g. TV camera or receiver, in which the TV signal is significantly involved H04N, e.g. H04N23/00, H04N5/765; combination of radio or TV with other apparatus, e.g. with vehicles H05K11/00}) - H04N 5/85: on discs or drums - H04N 9/64: Circuits for processing colour signals (H04N9/77 takes precedence; camera processing pipelines for processing colour signals H04N23/84) - H04N 21/43: Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware {(real-time communication protocols in data switching networks H04L65/00)} - H04N 21/816: {involving special video data, e.g 3D video} - G11B 2020/10537: {Audio or video recording} - G11B 2220/2541: Blu-ray discs; Blue laser DVR discs - H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION - G11B: INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER (recording measured values in a way that does not require playback through a transducer G01D9/00; recording or playback apparatus using mechanically marked tape, e.g. punched paper tape, or using unit records, e.g. punched or magnetically marked cards G06K; transferring data from one type of record carrier to another G06K1/18; circuits for coupling output of reproducer to radio receiver H04B1/20; gramophone pick-ups or like acoustic electromechanical transducers or circuits therefor H04R) ## Abstract 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. ## Claims ### Claim 1 A reproduction device comprising: 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 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 such that where a dynamic range of luminance indicated by the monitor information is wider than a dynamic range of luminance of a display unit included in the display device the output of video data is output with a reduced dynamic range of luminance. ### Claim 2 (depends on 1) The reproduction device according to claim 1, wherein in a case where the display device is a device that is compatible with processing for the monitor information output from the reproduction device, the output unit outputs the monitor information, as well as the video data, to the display device. ### Claim 3 (depends on 1) The reproduction device according to claim 1, wherein in a case where the display device is a device that is not compatible with processing for the monitor information output from the reproduction device, the output unit outputs the video data to the display device, or outputs the processed video data obtained by performing predetermined processing on the video data to the display device. ### Claim 4 (depends on 3) The reproduction device according to claim 3, further comprising a color gamut conversion unit configured to convert video data obtained by decoding the video stream into video data with a reduced color gamut, in a case where a color gamut indicated by the monitor information is wider than a color gamut of a display unit included in the display device, wherein the output unit outputs, to the display device, the processed video data on which processing is performed by the color gamut conversion unit as the predetermined processing. ### Claim 5 (depends on 3) The reproduction device according to claim 3, further comprising: a dynamic range conversion unit configured to convert video data obtained by decoding the video stream into the output of video data with the reduced dynamic range of a luminance, wherein the output unit outputs, to the display device, the processed video data on which processing is performed by the dynamic range conversion unit as the predetermined processing. ### Claim 6 A reproduction device comprising: 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 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 such that where a dynamic range of luminance indicated by the monitor information is wider than a dynamic range of luminance of a display unit included in the display device the output of video data is output with a reduced dynamic range of luminance, wherein the reproduction management information includes a flag indicating whether or not the monitor information is included in the video stream, and wherein the reproduction device further comprises: an acquisition unit configured to acquire the monitor information from the video stream in a case where the flag indicates that the monitor information is included in the video stream; and a control unit configured to perform processing on the basis of the monitor information acquired by the acquisition unit, of the monitor information acquired by the acquisition unit and the monitor information included in the reproduction management information. ### Claim 7 (depends on 1) The reproduction device according to claim 1, wherein the recording medium is a BD-ROM, and the monitor information is included in any one of Index table, PlayList, and Clip Information, the Index table, the PlayList, and the Clip Information being the reproduction management information. ### Claim 8 A reproduction method comprising the steps of: reading out, by a drive, 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 a color gamut and a dynamic range of luminance of a master monitor used for authoring the video stream; decoding the video stream by a decoder; and controlling 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 such that where a dynamic range of luminance indicated by the monitor information is wider than a dynamic range of luminance of a display unit included in the display device the output of video data is output with a reduced dynamic range of luminance. ### Claim 9 A non-transitory storage medium configured to store a program for causing a computer to execute processing comprising the steps of: reading out, by a drive, 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 a color gamut and a dynamic range of luminance of a master monitor used for authoring the video stream; decoding the video stream by a decoder; and controlling 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 such that where a dynamic range of luminance indicated by the monitor information is wider than a dynamic range of luminance of a display unit included in the display device the output of video data is output with a reduced dynamic range of luminance.