公开(公告)号：US10984510B2

公开(公告)日：2021-04-20

申请号：US16333491

申请日：2018-02-26

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Masayuki Kozuka ,  Masaya Yamamoto ,  Toshiroh Nishio ,  Kazuhiko Kouno ,  Yoshiichiro Kashiwagi ,  Takeshi Hirota ,  Hiroshi Yahata ,  Yoshihiro Mori

IPC: G06T5/00 ,  G06T11/60 ,  G06T5/50 ,  G09G5/00 ,  G09G5/02 ,  G09G5/10 ,  G09G5/397 ,  H04N5/66 ,  H04N5/20 ,  H04N21/431 ,  G06T11/00

Abstract: A video display apparatus includes: a video receiver that acquires video data including a main video; a generator that generates first characteristics information that indicates first dynamic luminance characteristics by using the video data when a luminance dynamic range format of the main video indicated by the video data is different from a display format that indicates a luminance dynamic range format displayable by the video display apparatus, the first dynamic luminance characteristics being dynamic luminance characteristics indicating a time-dependent change in luminance characteristics of the main video and correspond to the display format; a tone mapping processor that performs a tone mapping process of converting a luminance of the main video based on conversion characteristics according to the first dynamic luminance characteristics indicated by the first characteristics information generated by the generator; and a display that displays the main video that has undergone the tone mapping process.

公开(公告)号：US10362286B2

公开(公告)日：2019-07-23

申请号：US15943052

申请日：2018-04-02

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Tadamasa Toma ,  Masayuki Kozuka ,  Takahiro Nishi

IPC: H04N5/20 ,  H04N9/77 ,  H04N5/202 ,  H04N5/235 ,  H04N9/68 ,  G09G5/00 ,  G09G5/10

Abstract: 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.

公开(公告)号：US10291881B2

公开(公告)日：2019-05-14

申请号：US15367227

申请日：2016-12-02

Applicant: Panasonic Intellectual Property Management Co., Ltd.

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.

公开(公告)号：US20190141286A1

公开(公告)日：2019-05-09

申请号：US16241141

申请日：2019-01-07

Applicant: Panasonic Intellectual Property Management Co., Ltd.

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.

公开(公告)号：US10225513B2

公开(公告)日：2019-03-05

申请号：US15367227

申请日：2016-12-02

Applicant: Panasonic Intellectual Property Management Co., Ltd.

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.

公开(公告)号：US10051233B2

公开(公告)日：2018-08-14

申请号：US15595012

申请日：2017-05-15

Applicant: Panasonic Intellectual Property Management Co., Ltd.

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.

公开(公告)号：US09794539B2

公开(公告)日：2017-10-17

申请号：US15226136

申请日：2016-08-02

Applicant: Panasonic Intellectual Property Management Co., Ltd.

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.

公开(公告)号：US11914750B2

公开(公告)日：2024-02-27

申请号：US17613739

申请日：2019-11-08

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Masayuki Kozuka ,  Kohsuke Yamamoto ,  Tomoki Ogawa ,  Masaya Yamamoto ,  Junya Suzuki ,  Hiroki Urabe

IPC: G06Q30/0201 ,  G06F21/62 ,  G06F21/60 ,  H04L12/28

CPC classification number: G06F21/6245 ,  G06F21/602 ,  G06Q30/0201 ,  H04L12/2816

Abstract: An information management device includes: an obtainer that obtains first company information and personal information from a first company, the first company information relating to a first product or service of the first company, the personal information relating to a user who has purchased the first product or who has been provided with the service; a company information storage that stores the first company information obtained; a personal information storage that stores the personal information obtained; an integrator that integrates the company information and the personal information based on a purchase record or a use record to generate integrated information, the purchase record indicating that the user has purchased the first product, the use record indicating that the user has used the service; and a manager that manages an output of the integrated information based on restriction information for restricting an output destination of the integrated information.

公开(公告)号：US11375168B2

公开(公告)日：2022-06-28

申请号：US17339407

申请日：2021-06-04

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Tadamasa Toma ,  Masayuki Kozuka ,  Takahiro Nishi

IPC: H04N9/77 ,  H04N5/202 ,  G09G5/00 ,  H04N5/20 ,  H04N9/68 ,  G09G5/10 ,  H04N5/235

Abstract: 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.

公开(公告)号：US11310507B2

公开(公告)日：2022-04-19

申请号：US16825575

申请日：2020-03-20

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Tadamasa Toma ,  Masayuki Kozuka ,  Takahiro Nishi ,  Kengo Terada

IPC: H04N19/136 ,  H04N19/85 ,  H04N19/44 ,  H04N19/46 ,  H04N19/70 ,  H04N21/84 ,  H04N21/41 ,  H04N21/43 ,  H04N21/44 ,  H04N7/08 ,  H04N21/4363 ,  H04N21/462 ,  H04N21/4402 ,  H04N21/63 ,  H04N7/025 ,  H04N21/436 ,  H04N21/61 ,  H04N5/57

Abstract: A data output apparatus includes: a video decoder that decodes a video stream to generate a first video signal; an external metadata acquisition unit that acquires one or more pieces of metadata corresponding to one or more first conversion modes; an HDR metadata interpreter that interprets one of the one or more pieces of metadata to acquire characteristic data and conversion auxiliary data; a DR converter that supports one or more second conversion modes and performs conversion processing of a luminance range of the first video signal based on the conversion auxiliary data to generate a second video signal; and an HDMI output unit that outputs the second video signal to a display apparatus.