-
公开(公告)号：US10652597B2
公开(公告)日：2020-05-12
申请号：US15446484
申请日：2017-03-01
Inventor： Noritaka Iguchi , Tadamasa Toma
IPC: H04N21/236 , H04N21/2389 , H04L29/06 , H04N21/44 , H04N21/2343 , H04N21/242 , H04N21/43 , H04N21/426 , H04N21/845 , H04N21/4385 , H04N21/434 , H04N21/24
Abstract: 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.
-
122.发明授权公开(公告)号：US10652593B2
公开(公告)日：2020-05-12
申请号：US15933799
申请日：2018-03-23
Inventor： Tadamasa Toma , Takahiro Nishi , Noritaka Iguchi
IPC: G06T5/00 , H04N21/2343 , H04N21/485 , H04N21/236 , H04N21/234 , H04N21/4402 , H04N21/434 , H04N19/89 , H04N19/30
Abstract: A video transmission method according to the present disclosure includes: generating a transmission signal including, in a time series, first video data having a first luminance dynamic range and second video data having a second luminance dynamic range wider than the first luminance dynamic range; and transmitting the transmission signal generated. In the generating of the transmission signal, a signal level corresponding to a luminance value is limited to a value lower than a limit value that is predetermined, in a transition period provided for switching from one of the first video data and the second video data to the other.
-
公开(公告)号：US10582177B2
公开(公告)日：2020-03-03
申请号：US16282687
申请日：2019-02-22
Inventor： Tadamasa Toma , Masayuki Kozuka , Hiroshi Yahata , Takahiro Nishi , Kengo Terada
Abstract: A method to be performed by a playback device includes determining whether the playback device has a function for converting first graphics in a second luminance range narrower than a first luminance range to second graphics in the first luminance range, when the playback device has the function, converting the first graphics to the second graphics, and displaying a video in the first luminance range with the second graphics being superimposed on the video, and when the playback device does not have the function, displaying the video with third graphics different from the second graphics being superimposed on the video.
-
公开(公告)号：US10440425B2
公开(公告)日：2019-10-08
申请号：US15596055
申请日：2017-05-16
Inventor： Masayuki Kozuka , Tadamasa Toma , Kengo Terada , Takahiro Nishi
IPC: H04N21/4363 , H04N7/015 , H04N21/4408 , H04N21/4402 , H04N21/432 , H04N21/835 , H04N7/167 , H04N5/92
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.
-
公开(公告)号：US10419789B2
公开(公告)日：2019-09-17
申请号：US15046491
申请日：2016-02-18
Inventor： Masayuki Kozuka , Masaya Yamamoto , Kaoru Murase , Tadamasa Toma
IPC: G06F21/10 , H04N21/2347 , G06F21/60 , G11B20/00 , H04N5/85 , H04N9/79 , H04N21/41 , H04N21/433 , H04N21/4405 , H04N21/4408 , H04N21/4627 , H04N21/8355 , H04N21/854 , H04N9/804
Abstract: A method includes: holding a device key provided to an information processing terminal; reading an encrypted content and conversion control information from a recording medium; decoding the read encrypted content using the held device key to obtain a decoded content; converting the decoded content into an export format to obtain an export content; generating playback right information indicating that the information processing terminal can play back the converted export content according to the read conversion control information; and controlling whether the playback right information can be generated according to a first flag.
-
Patent Agency Ranking
126.发明申请公开(公告)号：US20190261486A1
公开(公告)日：2019-08-22
申请号：US16401746
申请日：2019-05-02
Inventor： Virginie Drugeon , Takahiro Nishi , Tadamasa Toma
IPC: H05B37/02 , H05B33/08 , H04N21/236 , H02M1/14 , H02M1/084 , H04N19/70 , H04N21/4402 , H04N7/01 , H04N21/2343 , H04N19/98 , H04N19/85 , H04N21/434
CPC classification number: H05B37/0209 , H02M1/084 , H02M1/14 , H02M2001/0009 , H04N7/0117 , H04N19/70 , H04N19/85 , H04N19/98 , H04N21/2343 , H04N21/236 , H04N21/23614 , H04N21/4345 , H04N21/4402 , H05B33/0815
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.
-
公开(公告)号：US10313743B2
公开(公告)日：2019-06-04
申请号：US15373509
申请日：2016-12-09
Inventor： Masayuki Kozuka , Tadamasa Toma , Kengo Terada , Takahiro Nishi
IPC: H04N21/4363 , H04N7/015 , H04N21/4408 , H04N21/4402 , H04N5/92 , H04N7/167 , H04N21/835 , H04N21/432
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.
-
128.发明授权公开(公告)号：US10291955B2
公开(公告)日：2019-05-14
申请号：US15214507
申请日：2016-07-20
Inventor： Tadamasa Toma , Hiroshi Yahata , Tomoki Ogawa
IPC: H04N5/775 , H04N21/436 , H04N5/57 , H04N21/432 , H04N21/435 , H04N21/44 , H04N21/4402 , H04N9/80 , H04N5/77
Abstract: A transmitting method according to one aspect of the present disclosure is a transmitting method of a playback device, and includes: when a version of a transmission protocol is a first version, transmitting first meta data to a display device without transmitting second meta data to the display device, the transmission protocol being used to transmit a signal between the playback device and the display device, the first meta data including information that is commonly used for a plurality of images included in a continuous playback unit of a first video signal and relates to a luminance range of the first video signal, and the second meta data including information that is commonly used for a unit subdivided compared to the continuous playback unit of the first video signal and relates to the luminance range of the first video signal; and when the version of the transmission protocol is a second version, transmitting the first meta data and the second meta data to the display device.
-
公开(公告)号：US10257486B2
公开(公告)日：2019-04-09
申请号：US15596190
申请日：2017-05-16
Inventor： Tadamasa Toma , Masayuki Kozuka , Hiroshi Yahata , Takahiro Nishi , Kengo Terada
Abstract: A method to be performed by a playback device includes determining whether the playback device has a function for converting first graphics in a second luminance range narrower than a first luminance range to second graphics in the first luminance range, when the playback device has the function, converting the first graphics to the second graphics, and displaying a video in the first luminance range with the second graphics being superimposed on the video, and when the playback device does not have the function, displaying the video with third graphics different from the second graphics being superimposed on the video.
-
公开(公告)号：US10097786B2
公开(公告)日：2018-10-09
申请号：US15583050
申请日：2017-05-01
Inventor： Kengo Terada , Masayuki Kozuka , Takahiro Nishi , Tadamasa Toma
IPC: H04N5/57 , G09G5/10 , H04N5/20 , G06F3/14 , H04N5/76 , H04N7/01 , 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.
-
-
-
-
-
-
-
-
-
Search Results
133
records
(took 0.034 seconds)
