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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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公开(公告)号：US10992877B2
公开(公告)日：2021-04-27
申请号：US16333885
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 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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Patent Agency Ranking
公开(公告)号：US10803872B2
公开(公告)日：2020-10-13
申请号：US16325844
申请日：2018-02-02
Inventor： Masayuki Kozuka , Tomoki Ogawa , Yoshihiro Mori
Abstract: An information processing apparatus includes: a speech obtainer which obtains speech of a user; a first controller which, when the first controller recognizes that the speech obtained by the speech obtainer is a first activation word, outputs a speech signal corresponding to the first activation word; and a second controller. In the first speech transmission process in which the speech signal of the speech obtained by speech obtainer is transmitted to the VPA cloud server, the first controller determines whether to output a speech signal corresponding to a second activation word to the second controller based on a predetermined priority level when the first controller recognizes that the speech obtained by the speech obtainer indicates the second activation word for causing the second controller to start a second speech transmission process.
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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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公开(公告)号：US09496795B2
公开(公告)日：2016-11-15
申请号：US14820529
申请日：2015-08-06
Inventor： Naohiko Morota , Tatsuya Sakurai , Takashi Saji , Keita Kawabe , Kazuhiro Murata , Koji Suzuki , Yoshihiro Mori
CPC classification number: H02M3/33523 , H02M2001/0032 , Y02B70/16
Abstract: A switching power supply apparatus of the present disclosure is a device connection state detection circuit that detects a connection state in a load device connection terminal in a power supply system having the load device connection terminal. The device connection state detection circuit includes a transformer, a switching element, a pulse generator, and a waveform detection circuit. The waveform detection circuit detects a voltage or a current generated in a primary winding wire or a secondary winding wire of the transformer in accordance with operation of a pulse signal, compares the detected voltage or current with a preset reference value, and outputs an output signal in accordance with a comparison result, to an OFF terminal.
Abstract translation: 本公开的开关电源装置是检测具有负载装置连接端子的电源系统中的负载装置连接端子的连接状态的装置连接状态检测电路。 设备连接状态检测电路包括变压器，开关元件，脉冲发生器和波形检测电路。 波形检测电路根据脉冲信号的操作检测变压器的初级绕组线或次级绕组中产生的电压或电流，将检测到的电压或电流与预设的参考值进行比较，并输出输出信号 根据比较结果，关闭终端。
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公开(公告)号：US09264756B2
公开(公告)日：2016-02-16
申请号：US14606516
申请日：2015-01-27
Inventor： Takahiro Yamaguchi , Yoshiichiro Kashiwagi , Yoshihiro Mori , Masayuki Kozuka
IPC: H04N5/932 , H04N21/432 , H04N11/20 , H04N19/186 , H04N19/40 , H04N19/136 , H04N19/44 , G06T7/00 , G06T7/40 , G06T11/00 , H04N21/2383 , H04N21/438 , H04N21/2343
CPC classification number: H04N21/4325 , G06T7/00 , G06T7/90 , G06T11/001 , H04N11/20 , H04N19/136 , H04N19/186 , H04N19/40 , H04N19/44 , H04N21/234327 , H04N21/2383 , H04N21/4382
Abstract: Provided is a production apparatus that can produce a distribution content that offers an even richer color tone expression during playback of video. The production apparatus for producing a distribution content including distribution video data is constituted by an original acquisition unit that acquires original video data; a distribution video acquisition unit that acquires the distribution video data, the distribution video data having been generated by conversion of the original video data to a lower gradation; a difference generation unit that generates difference data between the original video data and the distribution video data; and an output unit that outputs the difference data. A playback apparatus plays back the distribution content.
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