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公开(公告)号：US10741219B2
公开(公告)日：2020-08-11
申请号：US15682992
申请日：2017-08-22
Inventor： Hiroshi Yahata , Tadamasa Toma
IPC: H04N5/92 , H04N5/84 , H04N9/80 , G11B27/28 , G11B20/10 , G11B27/10 , G11B27/32 , H04N5/85 , H04N7/015 , H04N9/804 , H04N9/82 , 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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182.发明授权公开(公告)号：US10735721B2
公开(公告)日：2020-08-04
申请号：US16387007
申请日：2019-04-17
Inventor： Kiyofumi Abe , Takahiro Nishi , Tadamasa Toma , Ryuichi Kanoh
IPC: H04N19/176 , H04N19/159 , H04N19/182 , H04N19/44 , H04N19/51 , H04N19/105 , H04N19/154 , H04N19/513 , H04N19/139 , H04N19/436 , H04N19/196
Abstract: An encoder includes circuitry and memory. Using the memory, the circuitry: generates a prediction image to be used to encode a current block to be processed; derives a luminance correction parameter by referring to an image region which is included in an image including the current block and is outside the current block; and corrects the prediction image to be used to encode the current block, using the luminance correction parameter. The luminance correction parameter is used in common between a plurality of blocks included in the image.
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公开(公告)号：US10535373B2
公开(公告)日：2020-01-14
申请号：US15683024
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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公开(公告)号：US10482924B2
公开(公告)日：2019-11-19
申请号：US15683069
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 , H04N5/93 , G11B27/00
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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公开(公告)号：US10356474B2
公开(公告)日：2019-07-16
申请号：US14970750
申请日：2015-12-16
Inventor： Tadamasa Toma , Noritaka Iguchi , Takahiro Nishi , Hisaya Katou
IPC: H04N21/43 , H04N21/462 , H04H60/13 , H04N21/44 , H04N21/488 , H04N21/8543 , H04H20/18
Abstract: According to one aspect of the present disclosure, a transmission method for enabling transmission of content using a broadcast wave and a communication channel includes: transmitting auxiliary information using at least the broadcast wave, the auxiliary information being information for synchronizing content transmission using the broadcast wave and content transmission using the communication channel when the content is transmitted using the broadcast wave and the communication channel, and the auxiliary information causing a reception side to perform the synchronization when the reception side receives the auxiliary information. Therefore, even if timing of starting reception of the content through the communication is delayed, the reception side can play back the content by a combination of the broadcasting and the communication.
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Patent Agency Ranking
公开(公告)号：US10255951B2
公开(公告)日：2019-04-09
申请号：US15278582
申请日：2016-09-28
Inventor： Hiroshi Yahata , Tadamasa Toma , Tomoki Ogawa
IPC: H04N9/70 , H04N19/44 , G11B27/28 , G11B20/10 , H04N5/84 , H04N9/804 , H04N9/82 , H04N5/85 , H04N7/015 , G11B27/10 , G11B27/32 , H04N19/46 , H04N9/87
Abstract: A playback device includes: an attribute reader that reads out first attribute information, indicating whether a dynamic range of luminance of the video stream is a first dynamic range or a second dynamic range, from a management information file recorded in the recording medium in a manner correlated with the video stream; a decoder that generates decoded video information by reading the video stream out from the recording medium and decoding the video stream; and an outputter that, in a case where the first attribute information that has been read out indicates the second dynamic range, outputs the decoded video information, along with maximum luminance information indicating a maximum luminance of the video stream in accordance with the second dynamic range.
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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：US09992550B2
公开(公告)日：2018-06-05
申请号：US15139209
申请日：2016-04-26
Inventor： Noritaka Iguchi , Tadamasa Toma , Hisaya Katou
IPC: H04N5/76 , H04N21/643 , H04N21/43 , H04L7/00 , H04N21/236 , H04N21/2381 , H04N21/242 , H04N21/262 , H04N21/438 , H04N21/61
CPC classification number: H04N21/64322 , H04L7/0012 , H04N21/23614 , H04N21/2381 , H04N21/242 , H04N21/26283 , H04N21/4305 , H04N21/4381 , H04N21/6125
Abstract: A transmission method includes generating one or more frames for content transfer using IP (Internet Protocol) packets, and transmitting the one or more generated frames by broadcast. Each of the one or more frames contains a plurality of second transfer units, each of the plurality of second transfer units contains one or more first transfer units, and each of the one or more first transfer units contains at least one of the IP packets. An object IP packet of the IP packets which is stored in a first transfer unit positioned at a head in the one or more frames contains reference clock information that indicates time for reproduction of the content in data structure different from data structure of an MMT (MPEG Media Transport) packet, and header compression processing on the object IP packet is omitted.
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公开(公告)号：US12262010B2
公开(公告)日：2025-03-25
申请号：US18365054
申请日：2023-08-03
Inventor： Chong Soon Lim , Hai Wei Sun , Sughosh Pavan Shashidhar , Han Boon Teo , Ru Ling Liao , Takahiro Nishi , Tadamasa Toma
IPC: H04N19/119 , H04N19/176 , H04N19/50 , H04N19/60
Abstract: An encoder according to one aspect of the present disclosure encodes a block of an image, and includes a processor and memory connected to the processor. Using the memory, the processor partitions a block into a plurality of sub blocks and encodes a sub block included in the plurality of sub blocks in an encoding process including at least a transform process or a prediction process. The block is partitioned using a multiple partition including at least three odd-numbered child nodes and each of a width and a height of each of the plurality of sub blocks is a power of two.
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公开(公告)号：US12231665B2
公开(公告)日：2025-02-18
申请号：US17984675
申请日：2022-11-10
Inventor： Kiyofumi Abe , Takahiro Nishi , Tadamasa Toma
Abstract: An encoder includes circuitry and memory coupled to the circuitry. In operation, the circuitry: encodes one or more pictures which have common time information and each of which is included in a different layer; adds the one or more pictures into one access unit in a bitstream; and adds, into the bitstream, a first flag indicating that a total number of access units present in the bitstream is one.
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