Patents by Inventor Toshiroh Nishio
Toshiroh Nishio has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11228747Abstract: A video display device includes: a video receiver that receives video data including a video and dynamic luminance characteristics indicating a time-dependent change in luminance characteristics of the video; a tone mapping processor that, in the case where a luminance region having a luminance less than or equal to a first luminance is defined as a low luminance region, and a luminance region having a luminance exceeding the first luminance is defined as a high luminance region, (i) performs first tone mapping using first conversion characteristics when first luminance characteristics exceed a predetermined threshold value, and (ii) performs second tone mapping using second conversion characteristics when the first luminance characteristics are less than or equal to the predetermined threshold value.Type: GrantFiled: April 7, 2020Date of Patent: January 18, 2022Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Takeshi Hirota, Susumu Miyajima, Akira Yoneda, Yoshiichiro Kashiwagi, Toshiroh Nishio, Masayuki Kozuka
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Patent number: 11153466Abstract: 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.Type: GrantFiled: February 26, 2018Date of Patent: October 19, 2021Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Masaya Yamamoto, Masayuki Kozuka, Yoshiichiro Kashiwagi, Toshiroh Nishio, Kazuhiko Kouno, Hiroshi Yahata, Takeshi Hirota, Yoshihiro Mori
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Patent number: 11146737Abstract: 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.Type: GrantFiled: February 26, 2018Date of Patent: October 12, 2021Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Masaya Yamamoto, Masayuki Kozuka, Yoshiichiro Kashiwagi, Toshiroh Nishio, Kazuhiko Kouno, Hiroshi Yahata, Takeshi Hirota, Yoshihiro Mori
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Patent number: 11049225Abstract: 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.Type: GrantFiled: February 26, 2018Date of Patent: June 29, 2021Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Masayuki Kozuka, Masaya Yamamoto, Toshiroh Nishio, Kazuhiko Kouno, Yoshiichiro Kashiwagi, Takeshi Hirota, Hiroshi Yahata, Yoshihiro Mori
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Patent number: 11039045Abstract: 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.Type: GrantFiled: February 26, 2018Date of Patent: June 15, 2021Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Masayuki Kozuka, Masaya Yamamoto, Yoshiichiro Kashiwagi, Toshiroh Nishio, Kazuhiko Kouno, Hiroshi Yahata, Takeshi Hirota, Yoshihiro Mori
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Patent number: 11032448Abstract: 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.Type: GrantFiled: February 26, 2018Date of Patent: June 8, 2021Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Masaya Yamamoto, Masayuki Kozuka, Yoshiichiro Kashiwagi, Toshiroh Nishio, Kazuhiko Kouno, Hiroshi Yahata, Takeshi Hirota, Yoshihiro Mori
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Patent number: 10992877Abstract: 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.Type: GrantFiled: February 26, 2018Date of Patent: April 27, 2021Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Masaya Yamamoto, Masayuki Kozuka, Yoshiichiro Kashiwagi, Toshiroh Nishio, Kazuhiko Kouno, Hiroshi Yahata, Takeshi Hirota, Yoshihiro Mori
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Patent number: 10984510Abstract: 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.Type: GrantFiled: February 26, 2018Date of Patent: April 20, 2021Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Masayuki Kozuka, Masaya Yamamoto, Toshiroh Nishio, Kazuhiko Kouno, Yoshiichiro Kashiwagi, Takeshi Hirota, Hiroshi Yahata, Yoshihiro Mori
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Patent number: 10931915Abstract: A transmission apparatus includes a video obtainer configured to obtain a video signal, a first converter configured to convert the video signal into an electrical signal complying with a high definition multimedia interface (HDMI (registered trademark)) standard, a second converter configured to convert the video signal into an optical signal, and a signal processor configured to perform at least one of the conversion using the first converter and the conversion using the second converter with respect to the obtained video signal.Type: GrantFiled: May 30, 2017Date of Patent: February 23, 2021Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Toshiroh Nishio, Naoshi Usuki, Satoshi Takahashi
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Publication number: 20210006689Abstract: 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.Type: ApplicationFiled: February 26, 2018Publication date: January 7, 2021Inventors: Masaya YAMAMOTO, Masayuki KOZUKA, Yoshiichiro KASHIWAGI, Toshiroh NISHIO, Kazuhiko KOUNO, Hiroshi YAHATA, Takeshi HIROTA, Yoshihiro MORI
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Publication number: 20200413019Abstract: 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.Type: ApplicationFiled: February 26, 2018Publication date: December 31, 2020Inventors: Masayuki KOZUKA, Masaya YAMAMOTO, Yoshiichiro KASHIWAGI, Toshiroh NISHIO, Kazuhiko KOUNO, Hiroshi YAHATA, Takeshi HIROTA, Yoshihiro MORI
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Patent number: 10873684Abstract: 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-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.Type: GrantFiled: February 26, 2018Date of Patent: December 22, 2020Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Masayuki Kozuka, Masaya Yamamoto, Yoshiichiro Kashiwagi, Toshiroh Nishio, Kazuhiko Kouno, Hiroshi Yahata, Takeshi Hirota, Yoshihiro Mori
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Patent number: 10848646Abstract: There is provided a reproduction device that outputs a video signal to a display device via predetermined communication, the video signal including a video having pictures and corresponding pieces of image characteristic information. The reproduction device includes: an obtaining unit that obtains a first time difference between a timing at which the display device displays one picture among the pictures and a timing used by the display device to display one of the pieces of image characteristic information corresponding to the one picture; an adjuster that adjusts at least one of a timing at which the pictures are outputted and a timing at which the pieces of image characteristic information are outputted to reduce the first time difference; and an output unit that outputs the pictures and the pieces of image characteristic information via the predetermined communication at the time adjusted by the adjuster.Type: GrantFiled: February 26, 2018Date of Patent: November 24, 2020Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Toshiroh Nishio, Masayuki Kozuka, Makoto Serizawa, Toshiyuki Fukushima, Susumu Miyajima, Takeshi Hirota, Akihiro Fuke
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Patent number: 10832834Abstract: A cable assembly includes a cable, a connector that is provided at an end of the cable in a direction in which the cable extends, a plurality of electric transmission lines configured to transmit an electric signal, and a plurality of optical transmission lines configured to transmit an optical signal. The plurality of electric transmission lines and the plurality of optical transmission lines are provided in the cable assembly so as to extend across the cable and the connector. The plurality of optical transmission lines are provided so that at least one of the plurality of optical transmission lines is provided at each of ends of the cable assembly in a width direction perpendicular to the direction in which the cable extends. The plurality of electric transmission lines are provided inside the plurality of optical transmission lines in the width direction.Type: GrantFiled: May 11, 2020Date of Patent: November 10, 2020Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Toshiroh Nishio, Naoshi Usuki, Satoshi Takahashi
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Publication number: 20200273607Abstract: A cable assembly includes a cable, a connector that is provided at an end of the cable in a direction in which the cable extends, a plurality of electric transmission lines configured to transmit an electric signal, and a plurality of optical transmission lines configured to transmit an optical signal. The plurality of electric transmission lines and the plurality of optical transmission lines are provided in the cable assembly so as to extend across the cable and the connector. The plurality of optical transmission lines are provided so that at least one of the plurality of optical transmission lines is provided at each of ends of the cable assembly in a width direction perpendicular to the direction in which the cable extends. The plurality of electric transmission lines are provided inside the plurality of optical transmission lines in the width direction.Type: ApplicationFiled: May 11, 2020Publication date: August 27, 2020Inventors: Toshiroh NISHIO, Naoshi USUKI, Satoshi TAKAHASHI
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Patent number: 10742945Abstract: A luminance characteristics generation method includes: determining, for each of frames included in a video, a value as first luminance characteristics, the value being obtained by dividing the number of pixels having luminances less than or equal to a first luminance among all pixels included in the frame by the number of all the pixels included in the frame; and outputting the first luminance characteristics determined in the determining of the value.Type: GrantFiled: February 26, 2018Date of Patent: August 11, 2020Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Takeshi Hirota, Susumu Miyajima, Akira Yoneda, Yoshiichiro Kashiwagi, Toshiroh Nishio, Masayuki Kozuka
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Publication number: 20200236334Abstract: A video display device includes: a video receiver that receives video data including a video and dynamic luminance characteristics indicating a time-dependent change in luminance characteristics of the video; a tone mapping processor that, in the case where a luminance region having a luminance less than or equal to a first luminance is defined as a low luminance region, and a luminance region having a luminance exceeding the first luminance is defined as a high luminance region, (i) performs first tone mapping using first conversion characteristics when first luminance characteristics exceed a predetermined threshold value, and (ii) performs second tone mapping using second conversion characteristics when the first luminance characteristics are less than or equal to the predetermined threshold value.Type: ApplicationFiled: April 7, 2020Publication date: July 23, 2020Inventors: Takeshi HIROTA, Susumu MIYAJIMA, Akira YONEDA, Yoshiichiro KASHIWAGI, Toshiroh NISHIO, Masayuki KOZUKA
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Patent number: 10692630Abstract: A cable assembly includes a cable, a connector that is provided at an end of the cable in a direction in which the cable extends, a plurality of electric transmission lines configured to transmit an electric signal, and a plurality of optical transmission lines configured to transmit an optical signal. The plurality of electric transmission lines and the plurality of optical transmission lines are provided in the cable assembly so as to extend across the cable and the connector. The plurality of optical transmission lines are provided so that at least one of the plurality of optical transmission lines is provided at each of ends of the cable assembly in a width direction perpendicular to the direction in which the cable extends. The plurality of electric transmission lines are provided inside the plurality of optical transmission lines in the width direction.Type: GrantFiled: May 30, 2017Date of Patent: June 23, 2020Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Toshiroh Nishio, Naoshi Usuki, Satoshi Takahashi
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Patent number: 10659745Abstract: A video display device includes: a video receiver that obtains video data including a video and dynamic luminance characteristics indicating a time-dependent change in luminance characteristics of the video; a tone mapping processor that, in the case where a luminance region having a luminance less than or equal to a first luminance is defined as a low luminance region, and a luminance region having a luminance exceeding the first luminance is defined as a high luminance region, (i) performs first tone mapping using first conversion characteristics when first luminance characteristics exceed a predetermined threshold value, and (ii) performs second tone mapping using second conversion characteristics when the first luminance characteristics are less than or equal to the predetermined threshold value.Type: GrantFiled: February 26, 2018Date of Patent: May 19, 2020Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Takeshi Hirota, Susumu Miyajima, Akira Yoneda, Yoshiichiro Kashiwagi, Toshiroh Nishio, Masayuki Kozuka
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Patent number: 10564710Abstract: An AV signal input/output system includes an AV signal output device, an AV signal input device, and a cable which connects between the devices. The AV signal output device includes an existing interface, an optical interface, a selection output controller which selects existing interface differential signals or optical output signals, and outputs an AV signal, and an information identification unit which reads out information of the connected destination of a connector through existing interface signal lines. The information identification unit includes an optical information identification unit which identifies optical information. The AV signal input device includes an existing interface, an optical interface, a selection input controller which selects existing interface differential signals or optical input signals, and outputs an AV signal, and information storage which causes a connector to read out information through existing interface signal lines.Type: GrantFiled: August 10, 2018Date of Patent: February 18, 2020Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Satoshi Takahashi, Naoshi Usuki, Toshiroh Nishio