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公开(公告)号：US11115616B2
公开(公告)日：2021-09-07
申请号：US16921218
申请日：2020-07-06
发明人： Kengo Terada , Masayuki Kozuka , Takahiro Nishi , Tadamasa Toma
IPC分类号： H04N5/57 , G06F3/14 , H04N5/76 , H04N7/01 , G09G5/10 , H04N5/20 , H04N7/015 , H04N9/79 , H04N9/87
摘要： 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：US11095934B2
公开(公告)日：2021-08-17
申请号：US16901498
申请日：2020-06-15
发明人： Taiho Nakazawa , Noritaka Iguchi , Tadamasa Toma
IPC分类号： H04N21/434 , H04H20/30 , H04H20/40 , H04N21/43 , H04N21/433 , H04N21/438 , H04N21/4385 , H04N21/4402 , H04N21/462 , H04H60/73
摘要： 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：US11064229B2
公开(公告)日：2021-07-13
申请号：US16838472
申请日：2020-04-02
发明人： Noritaka Iguchi , Tadamasa Toma
IPC分类号： H04N21/236 , H04N21/2389 , H04L29/06 , H04N21/44 , H04N21/2343 , H04N21/242 , H04N21/43 , H04N21/426 , H04N21/845 , H04N21/4385 , H04N21/434 , H04N21/24
摘要： 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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14.发明申请公开(公告)号：US20210136379A1
公开(公告)日：2021-05-06
申请号：US17145531
申请日：2021-01-11
发明人： Chong Soon Lim , Takahiro Nishi , Tadamasa Toma
IPC分类号： H04N19/124 , H04N19/18 , H04N19/46 , H04N19/126 , H04N19/14 , H04N19/159 , H04N19/61 , H04N19/91
摘要： The encoding method includes: inverse-quantizing one or more first transform coefficients quantized; deriving a quantization parameter based on the one or more first transform coefficients inverse-quantized; and inverse-quantizing a second transform coefficient quantized, based on the derived quantization parameter.
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15.发明授权公开(公告)号：US10887967B2
公开(公告)日：2021-01-05
申请号：US16731592
申请日：2019-12-31
发明人： Virginie Drugeon , Takahiro Nishi , Tadamasa Toma
IPC分类号： H04N9/80 , H05B47/10 , H04N21/2343 , H04N21/236 , H04N21/4402 , H04N19/70 , H04N21/434 , H04N19/85 , H04N19/98 , H05B45/37 , H05B47/11 , H05B47/19 , H04N7/01 , H02M1/084 , H02M1/14 , H02M1/00
摘要： 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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16.发明授权公开(公告)号：US10887649B2
公开(公告)日：2021-01-05
申请号：US16442809
申请日：2019-06-17
发明人： Noritaka Iguchi , Tadamasa Toma
IPC分类号： H04W72/04 , H04N21/434 , H04N21/43 , H04N21/643
摘要： A reception apparatus including a decoding apparatus and a demultiplexing apparatus for identifying a packet with clock information. The decoding apparatus receives a transfer frame, which includes one or more first transfer units obtained by multiplexing contents. A decoder in the decoding apparatus acquires the first transfer units by decoding the transfer frame, and outputs the first transfer units to the demultiplexing apparatus. The demultiplexing apparatus acquires content by demultiplexing the first transfer units. Additionally, a heading first transfer unit, which is positioned at a head within the transfer frame, contains reference clock information. The decoder generates information for identifying the heading first transfer unit and outputs the information to the demultiplexing apparatus.
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公开(公告)号：US10362286B2
公开(公告)日：2019-07-23
申请号：US15943052
申请日：2018-04-02
发明人： Tadamasa Toma , Masayuki Kozuka , Takahiro Nishi
摘要： In a converting method relating to picture luminance according to one aspect of the present disclosure, the picture luminance is formed by luminance values in a first luminance range. In this method, a first luminance signal that indicates code values obtained by quantizing the luminance value of the picture is obtained, code values, which are associated with the code values indicated by the obtained first luminance signal by quantization for a second luminance range different in a maximum value from the first luminance range are determined as converted code values, and the first luminance signal is converted into a second luminance signal indicating the converted code values. As a result, the converting method is further improved.
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公开(公告)号：US10361801B2
公开(公告)日：2019-07-23
申请号：US15478387
申请日：2017-04-04
发明人： Noritaka Iguchi , Tadamasa Toma
IPC分类号： H04H60/40 , H04N21/236 , H04N21/434 , H04N21/63 , H04N21/2389 , H04H20/95 , H04N21/643
摘要： A transmission method according to one aspect of the present disclosure is a transmission method for transmitting content through broadcasting, including: generating a plurality of frames for transfer, each of which includes a plurality of first transfer units in which the content is to be stored, each of the plurality of frames having a fixed length, each of the plurality of first transfer units having a variable length; and transmitting the plurality of frames generated. The generating includes sequentially placing the plurality of first transfer units into the plurality of frames, and in the placing, even when a data size of a current first transfer unit to be processed is smaller than a remaining capacity of a current frame to be processed, the current first transfer unit is placed into a next frame.
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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
发明人： Tadamasa Toma , Kengo Terada , Masayuki Kozuka , Takahiro Nishi
IPC分类号： H04N7/01 , G09G5/10 , H04N5/20 , H04N7/015 , H04N9/64 , H04N21/462 , G06F3/14 , H04N11/20 , H04N5/235 , H04N5/243 , G06T5/00 , G09G5/02
摘要： 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
发明人： Tadamasa Toma , Kengo Terada , Masayuki Kozuka , Takahiro Nishi
IPC分类号： H04N7/01 , G09G5/02 , H04N11/20 , H04N9/64 , G06T5/00 , G06F3/14 , H04N21/462 , H04N7/015 , H04N5/20 , G09G5/10 , H04N5/243 , H04N5/235
摘要： 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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