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公开(公告)号：US11546429B2
公开(公告)日：2023-01-03
申请号：US17181582
申请日：2021-02-22
发明人： Mitsuki Yamada , Masayuki Kozuka , Kunio Gobara , Shinya Nakai , Masaya Yamamoto , Tomoki Ogawa , Junya Suzuki
IPC分类号： H04L67/125
摘要： A device management system includes: a server; base stations for long-distance wireless communication; and a device that communicatively connect to one of the base stations and that each sequentially transmit, to the server via the one base station, operation information indicating the current operation state of the device. Upon sequentially receiving the operation information, each of the base stations sequentially transmits, to the server, unique information unique to the base station together with the sequentially received operation information. The server sequentially receives, and sequentially stores in association with each other, the operation information and the unique information. When first and second unique information received at first and second times, respectively, are different, the server separately manages first operation information received in a first period ending at the first time and second operation information received in a second period starting at the second time.
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公开(公告)号：US11212133B2
公开(公告)日：2021-12-28
申请号：US16638439
申请日：2019-02-27
发明人： Junya Suzuki , Shinya Nakai , Mitsuki Yamada , Masayuki Kozuka , Kunio Gobara , Masaya Yamamoto , Tomoki Ogawa
摘要： A device management system includes: a server communicatively connected to a network; a base station for long-distance wireless communication that is communicatively connected to the network; and a device that is communicatively connected to the base station and transmits, to the server via the base station, state information indicating a state of the device. The server receives the state information from the device, generates notification information in accordance with the received state information, and transmits the generated notification information to the device.
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公开(公告)号：US10992877B2
公开(公告)日：2021-04-27
申请号：US16333885
申请日：2018-02-26
发明人： Masaya Yamamoto , Masayuki Kozuka , Yoshiichiro Kashiwagi , Toshiroh Nishio , Kazuhiko Kouno , Hiroshi Yahata , Takeshi Hirota , Yoshihiro Mori
IPC分类号： H04N5/235 , H04N5/20 , H04N21/431 , H04N21/435
摘要： A video display apparatus includes: a tone mapping processor that converts, by using dynamic metadata indicating a maximum luminance of a video in each of a plurality of time intervals included in a predetermined period, a luminance of the video in each time interval based on conversion characteristics according to the maximum luminance of the video in the time interval; and a display. The tone mapping processor switches between: a first operation of performing the tone mapping process by using first dynamic metadata that indicates the maximum luminance that is constant over the plurality of time intervals, the first dynamic metadata being generated by using static metadata that indicates a maximum luminance of the video in the predetermined period; 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.
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公开(公告)号：US10291879B2
公开(公告)日：2019-05-14
申请号：US15869485
申请日：2018-01-12
发明人： Masayuki Kozuka , Kaoru Murase , Masaya Yamamoto
IPC分类号： H04N9/80 , G11B27/00 , H04N5/913 , H04N21/432 , H04N21/835 , H04N21/4402 , G11B20/00 , H04N9/804 , H04N9/82 , H04N5/93 , H04N5/85
摘要： A playback method according to one aspect of the present disclosure is performed by a Blu-ray device connected to a display device. The playback method includes obtaining, from a recording medium, output control information of content recorded on the recording medium; obtaining, from the recording medium, a video signal of the content recorded on the recording medium; and (a) outputting the obtained video signal to the display device without converting image quality of the video signal, when the obtained output control information does not restrict output of content using a first copyright protection technology, and (b) converting the image quality of the obtained video signal and outputting the video signal to the display device, when the obtained output control information restricts output of content using the first copyright protection technology and output using the first copyright protection technology is performed according to a type of the display device.
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公开(公告)号：US09912903B2
公开(公告)日：2018-03-06
申请号：US15012917
申请日：2016-02-02
发明人： Masayuki Kozuka , Kaoru Murase , Masaya Yamamoto
IPC分类号： H04N9/80 , G11B27/00 , H04N5/913 , H04N21/432 , H04N21/835 , H04N21/4402 , G11B20/00 , H04N9/804 , H04N9/82 , H04N5/93 , H04N5/85
CPC分类号： H04N5/913 , G11B20/00086 , G11B20/00188 , G11B20/00731 , G11B20/00818 , H04N5/85 , H04N9/8042 , H04N9/8205 , H04N21/4325 , H04N21/4402 , H04N21/835 , H04N2005/91371
摘要： A playback method according to one aspect of the present disclosure is performed by a Blu-ray device connected to a display device. The playback method includes obtaining, from a recording medium, output control information of content recorded on the recording medium; obtaining, from the recording medium, a video signal of the content recorded on the recording medium; and (a) outputting the obtained video signal to the display device without converting image quality of the video signal, when the obtained output control information does not restrict output of content using a first copyright protection technology, and (b) converting the image quality of the obtained video signal and outputting the video signal to the display device, when the obtained output control information restricts output of content using the first copyright protection technology and output using the first copyright protection technology is performed according to a type of the display device.
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公开(公告)号：US11914750B2
公开(公告)日：2024-02-27
申请号：US17613739
申请日：2019-11-08
发明人： Masayuki Kozuka , Kohsuke Yamamoto , Tomoki Ogawa , Masaya Yamamoto , Junya Suzuki , Hiroki Urabe
IPC分类号： G06Q30/0201 , G06F21/62 , G06F21/60 , H04L12/28
CPC分类号： G06F21/6245 , G06F21/602 , G06Q30/0201 , H04L12/2816
摘要： 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.
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公开(公告)号：US11153466B2
公开(公告)日：2021-10-19
申请号：US16331464
申请日：2018-02-26
发明人： Masaya Yamamoto , Masayuki Kozuka , Yoshiichiro Kashiwagi , Toshiroh Nishio , Kazuhiko Kouno , Hiroshi Yahata , Takeshi Hirota , Yoshihiro Mori
IPC分类号： G06T5/00 , G06T5/20 , H04N9/793 , H04N5/20 , H04N5/445 , H04N21/431 , H04N21/4402 , H04N9/82 , H04N5/66 , H04N21/47
摘要： A video display apparatus 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：US09818446B2
公开(公告)日：2017-11-14
申请号：US15003745
申请日：2016-01-21
发明人： Tadamasa Toma , Tomoki Ogawa , Hiroshi Yahata , Masayuki Kozuka , Kaoru Murase , Masaya Yamamoto
IPC分类号： H04N5/917 , G11B20/12 , H04N5/85 , H04N21/4402 , H04N21/432 , H04N9/82 , H04N21/482 , G11B27/30 , G11B27/32 , G11B20/10 , G11B27/031 , H04N9/804 , H04N9/806 , H04N21/236 , H04N21/262 , H04N21/84 , H04N21/854
CPC分类号： G11B20/1217 , G11B20/10 , G11B27/031 , G11B27/3036 , G11B27/329 , H04N5/85 , H04N9/8042 , H04N9/806 , H04N9/8205 , H04N9/8211 , H04N9/8233 , H04N21/236 , H04N21/26258 , H04N21/4325 , H04N21/4402 , H04N21/4825 , H04N21/84 , H04N21/85406
摘要： A method according to one aspect of the present disclosure includes the steps of: acquiring a play list including identification information indicating each of a plurality of elementary streams; selecting an elementary stream indicated by predetermined identification information from the acquired play list; acquiring a difference file including data that is not included in the selected elementary stream; and converting the selected elementary stream into an MP4 file format by combining data included in the difference file and data included in the selected elementary stream based on a manifest file corresponding to the selected elementary stream, the manifest file being necessary for the conversion of a file format based on a predetermined rule.
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公开(公告)号：US08972737B2
公开(公告)日：2015-03-03
申请号：US14155712
申请日：2014-01-15
发明人： Masao Nonaka , Yuichi Futa , Toshihisa Nakano , Kaoru Yokota , Motoji Ohmori , Masaya Miyazaki , Masaya Yamamoto , Kaoru Murase , Senichi Onoda
IPC分类号： G06F12/14 , G06F21/10 , G06F21/62 , G06F21/64 , H04L9/32 , H04L29/06 , G06F11/30 , G06F12/00
CPC分类号： H04L9/3247 , G06F21/10 , G06F21/6209 , G06F21/64 , G06F2221/0773 , H04L9/3236 , H04L2209/60 , Y10S707/99942
摘要： A data processing device for playing back a digital work reduces the processing load involved in verification by using only a predetermined number of encrypted units selected randomly from multiple encrypted units constituting encrypted contents recorded on a DVD. In addition, the data processing device improves the accuracy of detecting unauthorized contents by randomly selecting a predetermined number of encrypted units every time the verification is performed.
摘要翻译： 用于再现数字作品的数据处理装置通过仅使用构成加密内容的多个加密单元随机选择的预定数量的加密单元来减少验证中所涉及的处理负担。 此外，数据处理装置通过在每次执行验证时随机选择预定数量的加密单元来提高检测未授权内容的准确性。
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10.发明授权Recording medium and recording method reducing processing load in realization of TS packet level copyright protection, and playback device and playback method for playback of such recording medium 有权记录介质和记录方法减少处理负载实现TS数据包级版权保护，以及播放设备和播放方法，用于播放这种记录介质公开(公告)号：US08942541B2
公开(公告)日：2015-01-27
申请号：US13664989
申请日：2012-10-31
IPC分类号： H04N5/783 , H04N5/913 , G11B27/00 , G11B27/10 , G11B27/32 , H04N5/85 , H04N9/804 , H04N9/806 , H04N9/82
CPC分类号： H04N5/913 , G11B27/005 , G11B27/105 , G11B27/323 , G11B2220/2541 , H04N5/85 , H04N9/8042 , H04N9/8063 , H04N9/8205 , H04N9/8211 , H04N9/8227 , H04N2005/91357
摘要： A recording medium enables special playback processing although part of the AV stream recorded therein is transformed. An AV stream, a first EP map, and a second EP map are recorded on the recording medium. In the AV stream, a part of the multiplexed stream including a first video stream and a second video stream is transformed. The first EP map indicates one or more entry points of the first video stream and the second EP map indicates one or more entry points of the second video stream. TS packets constituting I-pictures of the first video stream are indicated by every 4N-th entry point in the first EP map, and TS packets constituting I-pictures of the second video stream are indicated by the entry points whose presentation time is closest to the presentation time of any one of the every 4N-th entry point in the first EP map.
摘要翻译： 尽管其中记录的AV流的一部分被变换，但记录介质能够进行特殊的重放处理。 AV流，第一EP图和第二EP图记录在记录介质上。 在AV流中，包括第一视频流和第二视频流的多路复用流的一部分被变换。 第一EP映射表示第一视频流的一个或多个入口点，而第二EP映射表示第二视频流的一个或多个入口点。 构成第一视频流的I图像的TS分组由第一EP图中的每第4N个入口点指示，构成第二视频流的I图像的TS分组由呈现时间最接近的入口点指示 第一EP图中每4N入口点中的任何一个的呈现时间。
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