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公开(公告)号：US11636877B2
公开(公告)日：2023-04-25
申请号：US17881301
申请日：2022-08-04
Inventor： Toshiyuki Fukushima , Tokuo Nakatani , Nobuyuki Enoki , Kazuhiro Mochinaga , Masaya Yamamoto
Abstract: A content recording apparatus includes an obtaining unit which obtains a content having a variable-length packet structure, an encrypter which generates encrypted data by encrypting the content, and a recorder which records the encrypted data in a block unit having a fixed length in a recording medium. The encrypted data includes an invalidated region unnecessary for reproduction of the content. The recorder records a size of the invalidated region in the recording medium.
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公开(公告)号：US11146737B2
公开(公告)日：2021-10-12
申请号：US16333894
申请日：2018-02-26
Inventor： Masaya Yamamoto , Masayuki Kozuka , Yoshiichiro Kashiwagi , Toshiroh Nishio , Kazuhiko Kouno , Hiroshi Yahata , Takeshi Hirota , Yoshihiro Mori
IPC: H04N5/235 , H04N5/20 , H04N21/431 , H04N21/435
Abstract: A video display system includes: a tone mapping processor; a display; and a metadata processor that generates first dynamic metadata that indicates a maximum luminance that is constant over a plurality of time intervals by using static metadata. The video display system switches between: a first operation of (i) generating the first dynamic metadata by using the static metadata, performed by the metadata processor and (ii) performing the tone mapping process by using the first dynamic metadata, performed by the tone mapping processor; and a second operation of performing the tone mapping process by using second dynamic metadata in which the maximum luminance varies over the plurality of time intervals, performed by the tone mapping processor.
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公开(公告)号：US11049225B2
公开(公告)日：2021-06-29
申请号：US16333507
申请日：2018-02-26
Inventor： Masayuki Kozuka , Masaya Yamamoto , Toshiroh Nishio , Kazuhiko Kouno , Yoshiichiro Kashiwagi , Takeshi Hirota , Hiroshi Yahata , Yoshihiro Mori
IPC: G09G5/10 , G09G5/397 , H04N19/186 , G06T5/00 , G06T11/60 , G06T5/50 , G09G5/00 , G09G5/02 , H04N5/66 , H04N5/20 , H04N21/431 , G06T11/00
Abstract: A video processing system includes: an acquirer that acquires video data including a main video; a format acquirer that acquires a display format that indicates a luminance dynamic range format displayable by a video display apparatus; a generator that generates first characteristics information that indicates first dynamic luminance characteristics that correspond to the display format by using the video data when a luminance dynamic range format of the main video indicated by the video data is different from the display format, the first dynamic luminance characteristics being dynamic luminance characteristics indicating a time-dependent change in luminance characteristics of the main video; and a video transmitter that outputs the first characteristics information generated by the generator.
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公开(公告)号：US11039045B2
公开(公告)日：2021-06-15
申请号：US16332751
申请日：2018-02-26
Inventor： Masayuki Kozuka , Masaya Yamamoto , Yoshiichiro Kashiwagi , Toshiroh Nishio , Kazuhiko Kouno , Hiroshi Yahata , Takeshi Hirota , Yoshihiro Mori
Abstract: A video display system includes: a tone mapping processor that performs a tone mapping process of converting a luminance of a video by using conversion characteristics according to a maximum luminance of the video; and a display that displays the video that has undergone the tone mapping process. The tone mapping processor switches between a first tone mapping process of dynamically changing the conversion characteristics according to a time-depend change in the maximum luminance of the video and a second tone mapping process that is performed using constant conversion characteristics irrespective of the time-depend change in the maximum luminance of the video. When the tone mapping process used is switched from the second tone mapping process to the first tone mapping process, the conversion characteristics used is changed gradually or stepwise from the constant conversion characteristics to dynamically changing conversion characteristics over a plurality of frames.
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公开(公告)号：US10984510B2
公开(公告)日：2021-04-20
申请号：US16333491
申请日：2018-02-26
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.
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Patent Agency Ranking
16.发明授权公开(公告)号：US12080142B2
公开(公告)日：2024-09-03
申请号：US17258730
申请日：2020-02-25
Inventor： Masaya Yamamoto , Tomoki Ogawa , Kunio Gobara , Atsushi Tanaka , Masashi Hitotsuya , Makoto Yoshino
IPC: G08B21/18 , G06Q30/0251
CPC classification number: G08B21/18 , G06Q30/0255
Abstract: An information presentation method includes: sequentially obtaining, from a first appliance, appliance data including an operation status of the first appliance; receiving, from a second appliance different from the first appliance, notification of an opportunity of presenting information by the second appliance; determining, after receiving the notification in the receiving, whether to present the information by the second appliance, based on the appliance data obtained in the sequentially obtaining; and instructing the second appliance to present the information when determining to present the information by the second appliance in the determining, and prohibiting the second appliance from presenting the information when determining not to present the information by the second appliance in the determining.
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公开(公告)号：US11438222B2
公开(公告)日：2022-09-06
申请号：US16638445
申请日：2019-02-27
Inventor： Masaya Yamamoto , Masayuki Kozuka , Kunio Gobara , Shinya Nakai , Mitsuki Yamada , Tomoki Ogawa , Junya Suzuki
IPC: H04L41/0803 , G06F16/23 , G06F16/245 , G16Y10/80 , G16Y40/30
Abstract: A device management method executed in a server communicatively connected, via a network, to a plurality of devices and a first operation device associated with a first user identifier identifying a first user, includes: receiving, from the first operation device, a request to associate the first user identifier and a first device identifier identifying a first device among the plurality of devices; and when, in correspondence information stored in a storage device and including device identifiers identifying devices associated with user identifiers identifying users, (i) the first device identifier is associated with a second user identifier different from the first user identifier and (ii) the first user identifier is associated with a second device identifier identifying a second device different from the first device among the plurality of devices, storing the second device identifier and the second user identifier in association with each other.
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公开(公告)号：US11212270B2
公开(公告)日：2021-12-28
申请号：US16881195
申请日：2020-05-22
Inventor： Takahiro Yamaguchi , Masaya Yamamoto , Natsume Matsuzaki , Masayuki Kozuka
IPC: H04L29/06
Abstract: An intermediation method used in an intermediation system that includes an intermediation device determining a permission for application services requiring user authentication on a network, where in response to a user request, a first account used for a first service and a second account used for a second service, and a registration request for using the linking service linking the first application service and the second application service are associated with each other, when the two accounts are valid, as accounts usable in a linking service, an association between the first and second services is stored in the intermediation device, and when the user makes a request to use the linked services, that use is controlled by a query to the intermediation device regarding whether the account is associated as able to use the linking service.
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公开(公告)号：US11032448B2
公开(公告)日：2021-06-08
申请号：US16331456
申请日：2018-02-26
Inventor： Masaya Yamamoto , Masayuki Kozuka , Yoshiichiro Kashiwagi , Toshiroh Nishio , Kazuhiko Kouno , Hiroshi Yahata , Takeshi Hirota , Yoshihiro Mori
IPC: H04N5/445 , H04N5/20 , H04N21/431 , H04N21/4402 , H04N9/82 , H04N5/66 , H04N21/47 , G06T5/00 , G06T5/20 , H04N9/793
Abstract: A video display system includes: a tone mapping processor that performs a tone mapping process of converting a luminance of a video by using conversion characteristics according to a maximum luminance of the video; and a display that displays the video that has undergone the tone mapping process. The tone mapping processor switches between a first tone mapping process of dynamically changing the conversion characteristics according to a time-dependent change in the maximum luminance of the video and a second tone mapping process that is performed using constant conversion characteristics irrespective of the time-dependent change in the maximum luminance of the video.
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公开(公告)号：US10726315B2
公开(公告)日：2020-07-28
申请号：US16348026
申请日：2017-11-13
Inventor： Masayuki Kozuka , Yoshiichiro Kashiwagi , Masaya Yamamoto , Yasushi Uesaka , Yoshihiro Mori
IPC: G06K15/02 , G06T5/00 , H04N1/407 , H04N1/46 , H04N5/355 , H04N5/232 , G06T7/90 , H04N1/60 , H04N5/235
Abstract: An image processing device includes an acquisition section configured to acquire first still image data obtained through imaging and having a brightness range defined in a first dynamic range and performance information indicating a printing performance of a printing device, a converter configured to convert the first still image data acquired by the acquisition section into second still image data defined in a second dynamic range having a smaller brightness range than the brightness range of the first dynamic range depending on the printing performance indicated by the performance information acquired by the acquisition section, and an output section configured to output the second still image data converted by the converter to the printing device.
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