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81.发明申请公开(公告)号：US20190238788A1
公开(公告)日：2019-08-01
申请号：US16378948
申请日：2019-04-09
Inventor： Tadamasa TOMA , Masayuki Kozuka , Takahiro Nishi , Kengo Terada
IPC: H04N5/57 , G11B20/10 , H04N5/765 , H04N7/08 , H04N21/436 , H04N5/775 , H04N9/68 , H04N21/4363 , H04N21/84 , H04N5/20 , G09G5/10
Abstract: An apparatus according to one aspect of the present disclosure includes: one or more memories, and circuitry which, in operation; decodes a video stream to generate a first video signal with a first luminance range; acquires characteristic data indicating the luminance range of the first video signal; converts the characteristic data into control information according to a predetermined transmission protocol; and outputs the control information in accordance with the predetermined transmission protocol.
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82.发明申请公开(公告)号：US20190075293A1
公开(公告)日：2019-03-07
申请号：US16086512
申请日：2017-03-23
Inventor： Chong Soon LIM , Takahiro NISHI , Tadamasa TOMA
IPC: H04N19/124 , H04N19/18 , H04N19/61 , H04N19/91 , H04N19/159
Abstract: 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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83.发明申请公开(公告)号：US20180199073A1
公开(公告)日：2018-07-12
申请号：US15913172
申请日：2018-03-06
Inventor： Takahiro NISHI , Tadamasa TOMA
IPC: H04N19/98 , H04N19/46 , H04N19/44 , H04N19/136
CPC classification number: H04N19/98 , H04N19/136 , H04N19/44 , H04N19/46 , H04N19/895 , H04N21/23614 , H04N21/2362 , H04N21/431 , H04N21/434 , H04N21/4345 , H04N21/4348 , H04N21/845
Abstract: Provided is a video reception method performed by a video reception apparatus including a display. The video reception method includes: receiving a reception signal multiplexed from video data and audio data; outputting, as first transfer characteristics information, transfer characteristics obtained by demultiplexing the reception signal; outputting, as second transfer characteristics information, transfer characteristics obtained by decoding the video data, the second transfer characteristics information being information for specifying, at frame accuracy, a transfer function corresponding to a luminance dynamic range of the video data; and displaying the video data while controlling a luminance dynamic range of the display at frame accuracy according to the second transfer characteristics information.
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84.发明申请公开(公告)号：US20180192046A1
公开(公告)日：2018-07-05
申请号：US15739927
申请日：2016-03-18
Inventor： Han Boon TEO , Chong Soon LIM , Takahiro NISHI , Kengo TERADA , Tadamasa TOMA
IPC: H04N19/103 , H04N19/136 , H04N19/176 , G06N99/00
CPC classification number: H04N19/103 , G06N20/00 , H04N19/11 , H04N19/117 , H04N19/136 , H04N19/14 , H04N19/176 , H04N19/46 , H04N19/82
Abstract: To provide an encoding method for reducing deterioration in encoding efficiency when encoding a video/an image by selecting one operation mode out of a number of operation modes. The encoding method includes: extracting one or more features from one or more reconstructed pixel groups; categorizing the one or more reconstructed pixel groups using the extracted one or more features and a first machine learning model; and performing an encoding process on a current block of image samples included in a current picture using a parameter set corresponding to a result of the categorizing, the parameter set being one of a plurality of predefined parameter sets.
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公开(公告)号：US20170251245A1
公开(公告)日：2017-08-31
申请号：US15596055
申请日：2017-05-16
Inventor： Masayuki KOZUKA , Tadamasa TOMA , Kengo TERADA , Takahiro NISHI
IPC: H04N21/4363 , H04N21/835 , H04N21/432 , H04N5/92 , H04N21/4408 , H04N21/4402
CPC classification number: H04N21/43635 , H04N5/92 , H04N7/015 , H04N7/167 , H04N21/4325 , H04N21/4402 , H04N21/440263 , H04N21/4408 , H04N21/835
Abstract: A playback method according to one aspect of the present disclosure is performed by a playback device connected to a display device. The playback method includes obtaining a type of the display device; selecting each of a version of High-Definition Multimedia Interface (HDMI) and a version of High-bandwidth Digital Content Protection (HDCP), according to the obtained type of the display device; obtaining a video signal of content recorded on a recording medium; decoding the obtained video signal; encrypting the decoded video signal using the selected version of HDCP; and outputting the encrypted video signal to the display device using the selected version of HDMI.
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Patent Agency Ranking
公开(公告)号：US20170237907A1
公开(公告)日：2017-08-17
申请号：US15584365
申请日：2017-05-02
Inventor： Tadamasa TOMA , Kengo TERADA , Masayuki KOZUKA , Takahiro NISHI
CPC classification number: H04N7/0125 , G06F3/14 , G06T5/009 , G09G5/026 , G09G5/10 , G09G2320/0276 , G09G2370/04 , H04N5/20 , H04N5/2351 , H04N5/243 , H04N7/01 , H04N7/015 , H04N9/64 , H04N9/642 , H04N11/20 , H04N21/4621
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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87.发明公开公开(公告)号：US20240320711A1
公开(公告)日：2024-09-26
申请号：US18677373
申请日：2024-05-29
Inventor： Hiroshi YAHATA , Takahiro NISHI , Tadamasa TOMA , Toshiyasu SUGIO
IPC: G06Q30/0251 , H04L67/52 , H04L67/55
CPC classification number: G06Q30/0267 , G06Q30/0255 , G06Q30/0268 , H04L67/52 , H04L67/55 , G06Q30/0261
Abstract: A method includes causing a computer of a communication terminal to perform a process including acquiring, in response to receipt of a beacon signal transmitted from a vending machine, identification information and type information of a plurality of drinks from the vending machine by using short-range wireless communication; acquiring preference information on drinks of a user of the communication terminal; generating, based on the identification information, the type information, and the preference information, a push notification screen that recommends at least one drink that matches a preference of the user indicated by the preference information from among the plurality of drinks stored in the vending machine indicated by the identification information; and displaying the push notification screen on a display of the communication terminal.
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88.发明公开公开(公告)号：US20230308690A1
公开(公告)日：2023-09-28
申请号：US18203830
申请日：2023-05-31
Inventor： Virginie DRUGEON , Takahiro NISHI , Tadamasa TOMA
IPC: H04N19/70 , H04N19/85 , H04N19/98 , H05B47/11 , H05B47/19 , H05B45/37 , H05B47/10 , H02M1/084 , H02M1/14 , H04N7/01 , H04N21/2343 , H04N21/236 , H04N21/434 , H04N21/4402
CPC classification number: H04N19/70 , H04N19/85 , H04N19/98 , H05B47/11 , H05B47/19 , H05B45/37 , H05B47/10 , H02M1/084 , H02M1/14 , H04N7/0117 , H04N21/2343 , H04N21/236 , H04N21/23614 , H04N21/4345 , H04N21/4402 , H02M1/0009
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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89.发明申请公开(公告)号：US20210084729A1
公开(公告)日：2021-03-18
申请号：US17106882
申请日：2020-11-30
Inventor： Virginie DRUGEON , Takahiro NISHI , Tadamasa TOMA
IPC: 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
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：US20210075997A1
公开(公告)日：2021-03-11
申请号：US16951346
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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