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公开(公告)号：US10291881B2
公开(公告)日：2019-05-14
申请号：US15367227
申请日：2016-12-02
Inventor： Tadamasa Toma , Kengo Terada , Masayuki Kozuka , Takahiro Nishi
IPC: H04N7/01 , G09G5/10 , H04N5/20 , H04N7/015 , H04N9/64 , H04N21/462 , G06F3/14 , H04N11/20 , H04N5/235 , H04N5/243 , G06T5/00 , G09G5/02
Abstract: A conversion method for converting luminance of a video, including a luminance value in a first luminance range, to be displayed on a display apparatus includes: acquiring a first luminance signal indicating a code value obtained by quantization of the luminance value of the video; and converting the code value indicated by the acquired first luminance signal into a second luminance value determined based on a luminance range of the display apparatus, the second luminance value being compatible with a second luminance range with a maximum value smaller than a maximum value of the first luminance range and larger than 100 nit. This provides the conversion method capable of achieving further improvement.
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公开(公告)号：US20190141286A1
公开(公告)日：2019-05-09
申请号：US16241141
申请日：2019-01-07
Inventor： Tadamasa Toma , Kengo Terada , Masayuki Kozuka , Takahiro Nishi
IPC: H04N7/01 , G09G5/02 , H04N11/20 , H04N9/64 , G06T5/00 , G06F3/14 , H04N21/462 , H04N7/015 , H04N5/20 , G09G5/10 , H04N5/243 , H04N5/235
Abstract: A conversion method for converting luminance of a video, including a luminance value in a first luminance range, to be displayed on a display apparatus includes: acquiring a first luminance signal indicating a code value obtained by quantization of the luminance value of the video; and converting the code value indicated by the acquired first luminance signal into a second luminance value determined based on a luminance range of the display apparatus, the second luminance value being compatible with a second luminance range with a maximum value smaller than a maximum value of the first luminance range and larger than 100 nit. This provides the conversion method capable of achieving further improvement.
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公开(公告)号：US10225513B2
公开(公告)日：2019-03-05
申请号：US15367227
申请日：2016-12-02
Inventor： Tadamasa Toma , Kengo Terada , Masayuki Kozuka , Takahiro Nishi
IPC: H04N7/01 , G09G5/10 , H04N5/20 , H04N7/015 , H04N9/64 , H04N21/462 , G06F3/14 , H04N11/20 , H04N5/235 , H04N5/243 , G06T5/00 , G09G5/02
Abstract: A conversion method for converting luminance of a video, including a luminance value in a first luminance range, to be displayed on a display apparatus includes: acquiring a first luminance signal indicating a code value obtained by quantization of the luminance value of the video; and converting the code value indicated by the acquired first luminance signal into a second luminance value determined based on a luminance range of the display apparatus, the second luminance value being compatible with a second luminance range with a maximum value smaller than a maximum value of the first luminance range and larger than 100 nit. This provides the conversion method capable of achieving further improvement.
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24.发明授权公开(公告)号：US10080270B2
公开(公告)日：2018-09-18
申请号：US15885535
申请日：2018-01-31
Inventor： Virginie Drugeon , Takahiro Nishi , Tadamasa Toma
Abstract: A data generation method is for generating video data that covers a second luminance dynamic range wider than a first luminance dynamic range and has reproduction compatibility with a first device that does not support reproduction of video having the second luminance dynamic range and supports reproduction of video having the first luminance dynamic range, and includes: generating a video signal to be included in the video data using a second OETF; storing, into VUI in the video data, first transfer function information for identifying a first OETF to be referred to by the first device when the first device decodes the video data; and storing, into SEI in the video data, second transfer function information for identifying a second OETF to be referred to by a second device supporting reproduction of video having the second luminance dynamic range when the second device decodes the video data.
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25.发明授权公开(公告)号：US10051319B2
公开(公告)日：2018-08-14
申请号：US15616447
申请日：2017-06-07
Inventor： Takahiro Nishi , Tadamasa Toma
IPC: H04N7/16 , H04N21/4402 , H04N21/2343 , H04N7/01
Abstract: A transmission method in the present disclosure includes; obtaining an image and image signal characteristics information indicating one of an opto-electrical transfer function (OETF) or an electro-optical transfer function (EOTF) as image signal characteristics of the image; and transmitting a signal including the image and the image signal characteristics information. According to the transmission method in the present disclosure, a receiving device that received a high dynamic range (HDR) image and a standard dynamic range (SDR) image transmitted through broadcasting or the like can display these images appropriately.
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Patent Agency Ranking
公开(公告)号：US10051233B2
公开(公告)日：2018-08-14
申请号：US15595012
申请日：2017-05-15
Inventor： Tadamasa Toma , Kengo Terada , Masayuki Kozuka , Takahiro Nishi
IPC: H04N7/01 , H04N7/015 , H04N9/64 , G06F3/14 , H04N21/462
Abstract: A conversion method for converting luminance of a video, including a luminance value in a first luminance range, to be displayed on a display apparatus includes: acquiring a first luminance signal indicating a code value obtained by quantization of the luminance value of the video; and converting the code value indicated by the acquired first luminance signal into a second luminance value determined based on a luminance range of the display apparatus, the second luminance value being compatible with a second luminance range with a maximum value smaller than a maximum value of the first luminance range and larger than 100 nit. This provides the conversion method capable of achieving further improvement.
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公开(公告)号：US09794539B2
公开(公告)日：2017-10-17
申请号：US15226136
申请日：2016-08-02
Inventor： Masayuki Kozuka , Takahiro Nishi , Kengo Terada , Tadamasa Toma
IPC: H04N9/64 , G09G5/00 , G09G5/10 , H04N21/431 , H04N9/87 , H04N11/24 , H04N21/234 , G06T5/00 , H04N21/435 , H04N21/45 , G11B27/00 , H04N5/202
CPC classification number: H04N9/646 , G06T5/007 , G09G5/00 , G09G5/10 , G09G2320/0673 , G09G2340/06 , G11B27/00 , H04N5/202 , H04N9/87 , H04N11/002 , H04N21/234 , H04N21/431 , H04N21/4318 , H04N21/435 , H04N21/43635 , H04N21/4402 , H04N21/4516
Abstract: In a reproduction method, a first video stream has a first dynamic range where a maximum value of a luminance dynamic range is more than 100 nits, and a display apparatus displays video in a second dynamic range narrower than the first dynamic range. The method includes: determining whether the first video stream is quantized based on a hybrid OETF; (i) when it is determined that the first video stream is quantized based on the hybrid OETF, reproducing the first video stream; and (ii) when it is determined that the first video stream is not quantized based on the hybrid OETF, converting a luminance dynamic range of the first video stream from the first dynamic range to the second dynamic range to obtain a second video stream, and reproducing the second video stream.
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28.发明公开公开(公告)号：US20240223633A1
公开(公告)日：2024-07-04
申请号：US18610504
申请日：2024-03-20
Inventor： Noritaka Iguchi , Tadamasa Toma
IPC: H04L65/611 , H04B7/185 , H04L65/70 , H04L69/22 , H04N21/236 , H04N21/242 , H04N21/43 , H04N21/434 , H04N21/61 , H04N21/643
CPC classification number: H04L65/611 , H04B7/18526 , H04L65/70 , H04L69/22 , H04N21/236 , H04N21/242 , H04N21/4305 , H04N21/434 , H04N21/6193 , H04N21/64322
Abstract: A transmission method includes: generating a frame for transfer which stores one or more first internet protocol (IP) packets storing content, and one or more second IP packets each including reference clock information which indicates a time for a playback of the content; and transmitting the generated frame through broadcasting. In the generating, header compression is performed on the one or more first IP packets and the header compression is not performed on the one or more second IP packets.
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公开(公告)号：US11989792B2
公开(公告)日：2024-05-21
申请号：US17832110
申请日：2022-06-03
Inventor： Hiroshi Yahata , Takahiro Nishi , Tadamasa Toma , Toshiyasu Sugio
IPC: G06Q50/12 , G06K7/14 , G06Q30/0601
CPC classification number: G06Q50/12 , G06K7/1417 , G06Q30/0621 , G06Q30/0631
Abstract: A method includes acquiring, based on a restaurant ID, menu information indicating dishes provided by a restaurant corresponding to the restaurant ID from a second server related to the restaurant via a network, transmitting identification information stored in an information terminal to a first server, acquiring, from a first server, allergy information related to a user based on the identification information, generating, based on the menu information and the allergy information, a personalized menu arranged for the user according to the allergy information, displaying the personalized menu on a second operation screen for accepting an order of a dish in the restaurant, the second operation screen being displayed on a display of the information terminal of the user, and transmitting ordered-dish information representing the dish selected from the personalized menu to the second server.
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公开(公告)号：US20240107116A1
公开(公告)日：2024-03-28
申请号：US18527688
申请日：2023-12-04
Inventor： Takahiro NISHI , Tadamasa Toma
IPC: H04N21/4402 , G06T5/00 , G09G5/10 , H04N7/01 , H04N21/2343 , H04N21/235 , H04N21/431 , H04N21/435
CPC classification number: H04N21/4402 , G06T5/009 , G09G5/10 , H04N7/0125 , H04N21/2343 , H04N21/235 , H04N21/4316 , H04N21/4318 , H04N21/435 , G06F3/14
Abstract: A transmission method in the present disclosure includes; obtaining an image and image signal characteristics information indicating one of an opto-electrical transfer function (OETF) or an electro-optical transfer function (EOTF) as image signal characteristics of the image; and transmitting a signal including the image and the image signal characteristics information. According to the transmission method in the present disclosure, a receiving device that received a high dynamic range (HDR) image and a standard dynamic range (SDR) image transmitted through broadcasting or the like can display these images appropriately.
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