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公开(公告)号：US20210075996A1
公开(公告)日：2021-03-11
申请号：US16951212
申请日：2020-11-18
Inventor： Kengo TERADA , Masayuki KOZUKA , Takahiro NISHI , Tadamasa TOMA
IPC: H04N5/57 , G06F3/14 , H04N5/76 , H04N7/01 , G09G5/10 , H04N5/20 , H04N7/015 , H04N9/79 , H04N9/87
Abstract: A display system includes a conversion apparatus converting video luminance including a luminance value in a first luminance range and a display apparatus connected thereto and displaying the video. The conversion apparatus includes a first acquisition unit, a first luminance converter, a second luminance converter, a quantization converter, and an output unit outputting a third luminance signal to the display apparatus. The display apparatus includes: a second acquisition unit acquiring the third luminance signal and setting information indicating display settings recommended to the display apparatus in display of the video; a display setting unit setting the display apparatus, using the setting information; a third luminance converter converting a third code value indicated by the third luminance signal into a second luminance value compatible with a second luminance range, using the setting information; and a display controller displaying the video on the display apparatus based on the second luminance value.
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公开(公告)号：US20210075994A1
公开(公告)日：2021-03-11
申请号：US16950250
申请日：2020-11-17
Inventor： Kengo TERADA , Masayuki KOZUKA , Takahiro NISHI , Tadamasa TOMA
IPC: H04N5/57 , G06F3/14 , H04N5/76 , H04N7/01 , G09G5/10 , H04N5/20 , H04N7/015 , H04N9/79 , H04N9/87
Abstract: A display system includes a conversion apparatus converting video luminance including a luminance value in a first luminance range and a display apparatus connected thereto and displaying the video. The conversion apparatus includes a first acquisition unit, a first luminance converter, a second luminance converter, a quantization converter, and an output unit outputting a third luminance signal to the display apparatus. The display apparatus includes: a second acquisition unit acquiring the third luminance signal and setting information indicating display settings recommended to the display apparatus in display of the video; a display setting unit setting the display apparatus, using the setting information; a third luminance converter converting a third code value indicated by the third luminance signal into a second luminance value compatible with a second luminance range, using the setting information; and a display controller displaying the video on the display apparatus based on the second luminance value.
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公开(公告)号：US20210067728A1
公开(公告)日：2021-03-04
申请号：US17098712
申请日：2020-11-16
Inventor： Kengo TERADA , Masayuki KOZUKA , Takahiro NISHI , Tadamasa TOMA
IPC: H04N5/57 , G06F3/14 , H04N5/76 , H04N7/01 , G09G5/10 , H04N5/20 , H04N7/015 , H04N9/79 , H04N9/87
Abstract: A display system includes a conversion apparatus converting video luminance including a luminance value in a first luminance range and a display apparatus connected thereto and displaying the video. The conversion apparatus includes a first acquisition unit, a first luminance converter, a second luminance converter, a quantization converter, and an output unit outputting a third luminance signal to the display apparatus. The display apparatus includes: a second acquisition unit acquiring the third luminance signal and setting information indicating display settings recommended to the display apparatus in display of the video; a display setting unit setting the display apparatus, using the setting information; a third luminance converter converting a third code value indicated by the third luminance signal into a second luminance value compatible with a second luminance range, using the setting information; and a display controller displaying the video on the display apparatus based on the second luminance value.
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公开(公告)号：US20200314485A1
公开(公告)日：2020-10-01
申请号：US16901498
申请日：2020-06-15
Inventor： Taiho NAKAZAWA , Noritaka IGUCHI , Tadamasa TOMA
IPC: H04N21/434 , H04H20/30 , H04H20/40 , H04N21/43 , H04N21/433 , H04N21/438 , H04N21/4385 , H04N21/4402 , H04N21/462
Abstract: A receiving device of the present disclosure includes: a first processor that (i) receives a broadcast signal obtained by modulating multiplexed data including at least first multiplexed data in a first multiplexing format, out of the first multiplexed data and second multiplexed data in a second multiplexing format different from the first multiplexing format, (ii) demodulates the broadcast signal received, and (iii) outputs the multiplexed data obtained as a result of the demodulation; and a converter that (i) converts, into the second multiplexing format, a multiplexing format of the first multiplexed data included in the multiplexed data that has been output, and (ii) outputs converted data obtained as a result of the conversion.
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公开(公告)号：US20200252683A1
公开(公告)日：2020-08-06
申请号：US16857419
申请日：2020-04-24
Inventor： Takahiro NISHI , Tadamasa TOMA
IPC: H04N21/4402 , G06T5/00 , H04N21/2343 , H04N21/235 , H04N21/431 , H04N21/435 , G09G5/10 , 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：US20200236410A1
公开(公告)日：2020-07-23
申请号：US16838472
申请日：2020-04-02
Inventor： Noritaka IGUCHI , Tadamasa TOMA
IPC: H04N21/236 , H04N21/2389 , H04L29/06 , H04N21/44 , H04N21/2343 , H04N21/242 , H04N21/43 , H04N21/426 , H04N21/845 , H04N21/4385 , H04N21/434 , H04N21/24
Abstract: A transmitting device includes: a generator that generates an encoded stream by using rate control satisfying a determined definition of a receiving buffer model; and a transmitter that sequentially transmits a transmitting packet, and the receiving buffer model includes a first buffer that converts a packet into a first packet where the packet includes a packet header of a variable length, and the first packet includes a packet header of a fixed length of a decompressed header, a second buffer that converts the first packet into a second packet including a payload of a variable length, a third buffer that converts the second packet into a Network Abstraction Layer (NAL) unit, and a fourth buffer that outputs an access unit generated from a plurality of sequentially accumulated NAL units to a decoder at a timing of a decoding time corresponding to the access unit.
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77.发明申请公开(公告)号：US20200236407A1
公开(公告)日：2020-07-23
申请号：US16841910
申请日：2020-04-07
Inventor： Tadamasa TOMA , Takahiro NISHI , Noritaka IGUCHI
IPC: H04N21/2343 , H04N21/485 , H04N21/236 , H04N21/234 , H04N21/4402 , H04N21/434 , H04N19/89 , H04N19/30 , G06T5/00
Abstract: A video transmission method according to the present disclosure includes: generating a transmission signal including, in a time series, first video data having a first luminance dynamic range and second video data having a second luminance dynamic range wider than the first luminance dynamic range; and transmitting the transmission signal generated. In the generating of the transmission signal, a signal level corresponding to a luminance value is limited to a value lower than a limit value that is predetermined, in a transition period provided for switching from one of the first video data and the second video data to the other.
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78.发明申请公开(公告)号：US20190387596A1
公开(公告)日：2019-12-19
申请号：US16557314
申请日：2019-08-30
Inventor： Virginie DRUGEON , Takahiro NISHI , Tadamasa TOMA
IPC: H05B37/02 , H05B33/08 , H04N21/236 , H02M1/14 , H02M1/084 , H04N19/70 , H04N7/01 , H04N21/2343 , H04N19/98 , H04N19/85 , H04N21/434 , H04N21/4402
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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公开(公告)号：US20190313051A1
公开(公告)日：2019-10-10
申请号：US16448480
申请日：2019-06-21
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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80.发明申请公开(公告)号：US20190261487A1
公开(公告)日：2019-08-22
申请号：US16401779
申请日：2019-05-02
Inventor： Virginie DRUGEON , Takahiro NISHI , Tadamasa TOMA
IPC: H05B37/02 , H05B33/08 , H04N21/236 , H02M1/14 , H02M1/084 , H04N19/70 , H04N21/4402 , H04N7/01 , H04N21/2343 , H04N19/98 , H04N19/85 , H04N21/434
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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