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).

  • Patent number: 11228747
    Abstract: 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: Grant
    Filed: April 7, 2020
    Date of Patent: January 18, 2022
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Takeshi Hirota, Susumu Miyajima, Akira Yoneda, Yoshiichiro Kashiwagi, Toshiroh Nishio, Masayuki Kozuka
  • Patent number: 10848646
    Abstract: 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: Grant
    Filed: February 26, 2018
    Date of Patent: November 24, 2020
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Toshiroh Nishio, Masayuki Kozuka, Makoto Serizawa, Toshiyuki Fukushima, Susumu Miyajima, Takeshi Hirota, Akihiro Fuke
  • Patent number: 10742945
    Abstract: 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: Grant
    Filed: February 26, 2018
    Date of Patent: August 11, 2020
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Takeshi Hirota, Susumu Miyajima, Akira Yoneda, Yoshiichiro Kashiwagi, Toshiroh Nishio, Masayuki Kozuka
  • Publication number: 20200236334
    Abstract: 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: Application
    Filed: April 7, 2020
    Publication date: July 23, 2020
    Inventors: Takeshi HIROTA, Susumu MIYAJIMA, Akira YONEDA, Yoshiichiro KASHIWAGI, Toshiroh NISHIO, Masayuki KOZUKA
  • Patent number: 10659745
    Abstract: 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: Grant
    Filed: February 26, 2018
    Date of Patent: May 19, 2020
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Takeshi Hirota, Susumu Miyajima, Akira Yoneda, Yoshiichiro Kashiwagi, Toshiroh Nishio, Masayuki Kozuka
  • Publication number: 20190342603
    Abstract: 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: Application
    Filed: February 26, 2018
    Publication date: November 7, 2019
    Applicant: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Takeshi HIROTA, Susumu MIYAJIMA, Akira YONEDA, Yoshiichiro KASHIWAGI, Toshiroh NISHIO, Masayuki KOZUKA
  • Publication number: 20190335149
    Abstract: 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: Application
    Filed: February 26, 2018
    Publication date: October 31, 2019
    Inventors: Takeshi HIROTA, Susumu MIYAJIMA, Akira YONEDA, Yoshiichiro KASHIWAGI, Toshiroh NISHIO, Masayuki KOZUKA
  • Publication number: 20190208089
    Abstract: 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: Application
    Filed: February 26, 2018
    Publication date: July 4, 2019
    Inventors: Toshiroh NISHIO, Masayuki KOZUKA, Makoto SERIZAWA, Toshiyuki FUKUSHIMA, Susumu MIYAJIMA, Takeshi HIROTA, Akihiro FUKE
  • Publication number: 20100250988
    Abstract: 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: Application
    Filed: December 27, 2007
    Publication date: September 30, 2010
    Applicant: Panasonic Corporation
    Inventors: Sachiko Okuda, Susumu Miyajima, Toyokazu Yanagimichi, Hidekazu Suzuki