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公开(公告)号：US10057557B2
公开(公告)日：2018-08-21
申请号：US15290018
申请日：2016-10-11
Inventor： Hiroshi Yahata , Tadamasa Toma
IPC: H04N9/80 , H04N9/87 , G11B20/10 , G11B20/12 , G11B27/32 , G11B27/34 , H04N5/85 , H04N9/804 , G11B27/28 , G11B27/30 , H04N21/426 , H04N21/432 , H04N21/44 , H04N21/488 , H04N9/82
CPC classification number: H04N9/87 , G11B20/10 , G11B20/1262 , G11B27/28 , G11B27/3027 , G11B27/309 , G11B27/322 , G11B27/329 , G11B27/34 , G11B2220/2562 , H04N5/85 , H04N9/8042 , H04N9/8233 , H04N21/42646 , H04N21/4325 , H04N21/44008 , H04N21/4884
Abstract: A recording medium according an aspect of the present disclosure has recorded therein a main video stream where a main video has been encoded, and a sub-video stream where a sub-video, that is to be superimposed on the main video and displayed, has been encoded. The sub-video stream includes bitmap data indicating a design of the sub-video and palette data specifying the display color of the design. The palette data includes first palette data for a first luminance dynamic range (SDR), and second palette data for a second luminance dynamic range (HDR) that is broader than the first dynamic range.
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公开(公告)号：US11929102B2
公开(公告)日：2024-03-12
申请号：US17556227
申请日：2021-12-20
Inventor： Hiroshi Yahata , Tadamasa Toma , Tomoki Ogawa
IPC: H04N19/44 , G11B20/10 , G11B27/00 , G11B27/10 , G11B27/28 , G11B27/32 , H04N5/84 , H04N5/85 , H04N7/015 , H04N9/804 , H04N9/82 , H04N9/87 , G11B20/00 , H04N9/16
CPC classification number: G11B27/28 , G11B20/10 , G11B27/105 , G11B27/329 , H04N5/84 , H04N5/85 , H04N7/015 , H04N9/8042 , H04N9/8205 , H04N9/8233 , G11B2220/2541 , G11B2220/2562
Abstract: A decoding system decodes a video stream, which is encoded video information. The decoding system includes a decoder that acquires the video steam and generates decoded video information, a maximum luminance information acquirer that acquires maximum luminance information indicating the maximum luminance of the video stream from the video stream, and an outputter that outputs the decoded video information along with the maximum luminance information. In in a case where the video stream includes a base video stream and an enhanced video stream, the decoder generates base video information by decoding the base video stream, an enhanced video information by decoding the enhanced video stream, and generates the decoded video information based on the base video information and the enhanced video information, and the outputter outputs the decoded video information, along with the maximum luminance information.
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公开(公告)号：US11335382B2
公开(公告)日：2022-05-17
申请号：US17038753
申请日：2020-09-30
Inventor： Hiroshi Yahata , Tadamasa Toma , Tomoki Ogawa
IPC: H04N19/70 , H04N19/44 , H04N19/46 , G11B27/28 , G11B20/10 , H04N5/84 , H04N9/804 , H04N9/82 , G11B27/10 , G11B27/32 , H04N5/85 , H04N7/015 , H04N9/87
Abstract: A decoding system decodes a video stream, which is encoded video information. The decoding system includes an attribute information acquirer that acquires first attribute information, indicating whether a dynamic range of luminance of the video stream is a first dynamic range or a second dynamic range that is wider than the first dynamic range, and a decoder that acquires the video steam and generates decoded video information. The decoding system also includes an outputter that, in a case where the first attribute information indicates the second dynamic range, outputs the decoded video information and maximum luminance information indicating a maximum luminance of the video stream in accordance with the second dynamic range. Further, in other cases, the outputter outputs the decoded video information and maximum luminance information indicating the maximum luminance of all pictures in the video stream.
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公开(公告)号：US11328748B2
公开(公告)日：2022-05-10
申请号：US16748185
申请日：2020-01-21
Inventor： Hiroshi Yahata , Tadamasa Toma
Abstract: A recording medium includes a video stream of a standard-luminance range and a video stream of high-luminance range, which are used selectively in accordance with a playback environment. The recording medium also includes a subtitle stream of the standard-luminance range and a subtitle stream of the high-luminance range, which are used selectively in accordance with the playback environment. A playlist file includes a management region where playback control information relating to a main stream is stored, and includes an extended region. The management region stores first playback control information specifying playing of the video stream of the high-luminance range and the subtitle stream of the high-luminance range in combination. The extended region stores second playback control information specifying playing of the video stream of the standard-luminance range and the subtitle stream of the standard-luminance range in combination.
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公开(公告)号：US11133034B2
公开(公告)日：2021-09-28
申请号：US16987036
申请日：2020-08-06
Inventor： Hiroshi Yahata , Kazuhiro Mochinaga
Abstract: A playback method of reading out and playing streams from a recording medium is provided in which are recorded a stream file, a playlist file, first and second combination information, elementary streams that can be played at the same time with the first luminance video, and elementary streams that can be played at the same time with the second luminance video. The playback method includes in a case of playing the first luminance video, reading out any one of the elementary streams listed in the first combination information of the playlist file, and playing at the same time with the first luminance video, and in a case of playing the second luminance video, reading out any one of the elementary streams listed in the second combination information of the playlist file, and playing at the same time with the second luminance video.
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Patent Agency Ranking
公开(公告)号：US10998000B2
公开(公告)日：2021-05-04
申请号：US16733624
申请日：2020-01-03
Inventor： Hiroshi Yahata , Tadamasa Toma
Abstract: A recording medium includes a video stream of a standard-luminance range and a video stream of high-luminance range, which are used selectively in accordance with a playback environment. The recording medium also includes a subtitle stream of the standard-luminance range and a subtitle stream of the high-luminance range, which are used selectively in accordance with the playback environment. A playlist file includes a management region where playback control information relating to a main stream is stored, and includes an extended region. The management region stores first playback control information specifying playing of the video stream of the high-luminance range and the subtitle stream of the high-luminance range in combination. The extended region stores second playback control information specifying playing of the video stream of the standard-luminance range and the subtitle stream of the standard-luminance range in combination.
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公开(公告)号：US10714140B2
公开(公告)日：2020-07-14
申请号：US16733726
申请日：2020-01-03
Inventor： Hiroshi Yahata
IPC: G11B20/00 , H04N5/85 , H04N5/913 , H04N21/432 , H04N21/4405 , H04N21/845
Abstract: A non-transitory tangible recording medium storing AV data having a system stream file is provided. The system stream file is played by a playback device. The system stream file includes an individual decryption key and a common decryption key. The individual decryption key is owned individually by each of multiple playback devices. The common decryption key is owned in common by the playback devices. The system stream file includes a first system stream file to be played back using both the individual decryption key and the common decryption key. The system stream file also includes a second system stream file to be played back using only the common decryption key among the individual decryption key and the common decryption key.
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公开(公告)号：US20200143833A1
公开(公告)日：2020-05-07
申请号：US16733726
申请日：2020-01-03
Inventor： Hiroshi Yahata
IPC: G11B20/00 , H04N21/845 , H04N21/4405 , H04N21/432 , H04N5/913 , H04N5/85
Abstract: A non-transitory tangible recording medium storing AV data having a system stream file is provided. The system stream file is played by a playback device. The system stream file includes an individual decryption key and a common decryption key. The individual decryption key is owned individually by each of multiple playback devices. The common decryption key is owned in common by the playback devices. The system stream file includes a first system stream file to be played back using both the individual decryption key and the common decryption key. The system stream file also includes a second system stream file to be played back using only the common decryption key among the individual decryption key and the common decryption key.
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公开(公告)号：US10553253B2
公开(公告)日：2020-02-04
申请号：US16255933
申请日：2019-01-24
Inventor： Hiroshi Yahata , Kazuhiro Mochinaga
Abstract: A recording medium is provided in which are recorded a stream file, including a first luminance video expressed by luminance of a first dynamic range, and a second luminance video expressed by luminance of a second dynamic range that is broader than the first dynamic range, and a playlist file for controlling playback of the stream file. The recording medium includes first and second combination information, representing combinations of first and second audio streams that each can be played at the same time in a same playback section with the first luminance video and the second luminance video, being described in the playlist file. The recording medium also includes the first audio streams that can be played at the same time with the first luminance video in this playback section being all listed in the first combination information.
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公开(公告)号：US10535374B2
公开(公告)日：2020-01-14
申请号：US15683038
申请日：2017-08-22
Inventor： Hiroshi Yahata , Tadamasa Toma
IPC: H04N5/92 , H04N5/84 , G11B27/28 , G11B20/10 , G11B27/10 , G11B27/32 , H04N5/85 , H04N7/015 , H04N9/804 , H04N9/82 , H04N9/80 , G11B27/00 , H04N5/93
Abstract: At least one video stream that is encoded video information, and a management information file indicating attributes relating to the entire recording medium, are recorded in a recording medium. The management information file includes attribute information indicating whether the dynamic range of luminance of an initial video stream, which is played first out of the at least one video stream when the recording medium is inserted into a playback device, is a first dynamic range, or a second dynamic range that is broader than the first dynamic range.
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