Patents by Inventor Susumu Miyajima
Susumu Miyajima 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: 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: 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: 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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Publication number: 20190342603Abstract: 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: ApplicationFiled: February 26, 2018Publication date: November 7, 2019Applicant: 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: 20190335149Abstract: 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: ApplicationFiled: February 26, 2018Publication date: October 31, 2019Inventors: Takeshi HIROTA, Susumu MIYAJIMA, Akira YONEDA, Yoshiichiro KASHIWAGI, Toshiroh NISHIO, Masayuki KOZUKA
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Publication number: 20190208089Abstract: 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: ApplicationFiled: February 26, 2018Publication date: July 4, 2019Inventors: Toshiroh NISHIO, Masayuki KOZUKA, Makoto SERIZAWA, Toshiyuki FUKUSHIMA, Susumu MIYAJIMA, Takeshi HIROTA, Akihiro FUKE
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Publication number: 20100250988Abstract: It provides a video display system capable of effective control of power consumption, safe power-off operation, and resetting from a hang-up state by properly setting power supply to a plug-in module in accordance with the operational request and operational status of a digital broadcast receiving device and the plug-in module, a display device, a plug-in module, and a plug-in module power control method. Each of the digital broadcast receiving device and plug-in module includes an authentication part for equipment authentication thereof, CEC communication part for control signal communication, and a video audio transmitter receiver. The digital broadcast receiving device serves for switching the module power supply part for power supply to the plug-in module from standby power to main power in accordance with the control signal after equipment authentication is obtained for the plug-in module.Type: ApplicationFiled: December 27, 2007Publication date: September 30, 2010Applicant: Panasonic CorporationInventors: Sachiko Okuda, Susumu Miyajima, Toyokazu Yanagimichi, Hidekazu Suzuki