Patents by Inventor Nobuo Takeshita
Nobuo Takeshita 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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Publication number: 20210337174Abstract: In a format in which a graphic is transmitted to a display apparatus after being combined with a content video, luminance of the graphic is fluctuated by dynamic metadata control. A video content medium relating to technology disclosed in the description of the present application is a video content medium on which one or more video streams, control information, and graphic information including a menu or a subtitle are recorded, wherein at least one of the video streams is a video having a wide luminance range, and graphic transition time information indicating a transition time to switch between luminance range adjustment functions when a graphic is combined is stored together.Type: ApplicationFiled: August 23, 2017Publication date: October 28, 2021Applicant: Mitsubishi Electric CorporationInventors: Kosuke YAGI, Nobuo TAKESHITA, Masaaki SHIMADA, Tomo KISHIGAMI, Yoshinori WATANABE
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Patent number: 10976545Abstract: A display device used in a vehicle for displaying virtual images includes: a display including a light source to emit image light and a screen on which the image light is projected; and a controller to adjust positions at which the virtual images are displayed. Images displayed on the screen are projected as the virtual images. The virtual images include first and second virtual images displayed at different positions. The display displays, on the screen, a first adjustment image that is projected to a display area of the first virtual image and a second adjustment image that is projected to a display area of the second virtual image. The controller adjusts a position of the display area of the first virtual image and a position of the display area of the second virtual image on a basis of the first adjustment image and the second adjustment image.Type: GrantFiled: August 30, 2017Date of Patent: April 13, 2021Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Tomo Kishigami, Nobuo Takeshita, Atsushi Michimori, Shota Nakahara
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Patent number: 10650855Abstract: In a multilayer optical disc having information layers conforming to a plurality of different optical disc standards, because the type of each information layer is not recorded in the other information layers, in read and write operations by a compatible optical disc device conforming to a plurality of optical disc standards, every time the information layer being accessed changes, it has been necessary to read the type of the information layer and select a method of generating a tracking error signal adapted to the type of information layer, so access has taken time. In order to solve the above problem, in the optical multilayer disc according to the present invention, having information layers conforming to a plurality of different optical disc standards, in an area in one of the information layers, information about the other information layers is recorded. The time required to access the other information layers can be reduced by using this information to select a tracking error signal generating method.Type: GrantFiled: June 28, 2019Date of Patent: May 12, 2020Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Hironori Nakahara, Nobuo Takeshita, Masaharu Ogawa
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Publication number: 20190325909Abstract: In a multilayer optical disc having information layers conforming to a plurality of different optical disc standards, because the type of each information layer is not recorded in the other information layers, in read and write operations by a compatible optical disc device conforming to a plurality of optical disc standards, every time the information layer being accessed changes, it has been necessary to read the type of the information layer and select a method of generating a tracking error signal adapted to the type of information layer, so access has taken time. In order to solve the above problem, in the optical multilayer disc according to the present invention, having information layers conforming to a plurality of different optical disc standards, in an area in one of the information layers, information about the other information layers is recorded. The time required to access the other information layers can be reduced by using this information to select a tracking error signal generating method.Type: ApplicationFiled: June 28, 2019Publication date: October 24, 2019Applicant: Mitsubishi Electric CorporationInventors: Hironori NAKAHARA, Nobuo TAKESHITA, Masaharu OGAWA
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Publication number: 20190271840Abstract: A display device used in a vehicle for displaying virtual images includes: a display including a light source to emit image light and a screen on which the image light is projected; and a controller to adjust positions at which the virtual images are displayed. Images displayed on the screen are projected as the virtual images. The virtual images include first and second virtual images displayed at different positions. The display displays, on the screen, a first adjustment image that is projected to a display area of the first virtual image and a second adjustment image that is projected to a display area of the second virtual image. The controller adjusts a position of the display area of the first virtual image and a position of the display area of the second virtual image on a basis of the first adjustment image and the second adjustment image.Type: ApplicationFiled: August 30, 2017Publication date: September 5, 2019Applicant: Mitsubishi Electric CorporationInventors: Tomo KISHIGAMI, Nobuo TAKESHITA, Atsushi MICHIMORI, Shota NAKAHARA
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Patent number: 10397444Abstract: An image display apparatus includes: a light source unit including three or more light sources, combining lights from the light sources and emitting the combined light; a wavelength detector that detects, for each light source, wavelength information indicating the wavelength of light from the light source; a color value determiner that determines, for each light source, from the wavelength information, a color value indicating a color of light from the light source in a predetermined color space; a correction value determiner that determines, based on the color values, a correction value for correcting a ratio between the intensities of lights from the light sources so that the color of the combined light is a color to be displayed; and a driver that drives the light sources so that the ratio between the intensities of lights from the light sources is a ratio corrected based on the correction value.Type: GrantFiled: January 7, 2016Date of Patent: August 27, 2019Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Tomo Kishigami, Nobuo Takeshita
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Patent number: 10381037Abstract: In a multilayer optical disc having information layers conforming to a plurality of different optical disc standards, because the type of each information layer is not recorded in the other information layers, in read and write operations by a compatible optical disc device conforming to a plurality of optical disc standards, every time the information layer being accessed changes, it has been necessary to read the type of the information layer and select a method of generating a tracking error signal adapted to the type of information layer, so access has taken time. In order to solve the above problem, in the optical multilayer disc according to the present invention, having information layers conforming to a plurality of different optical disc standards, in an area in one of the information layers, information about the other information layers is recorded. The time required to access the other information layers can be reduced by using this information to select a tracking error signal generating method.Type: GrantFiled: May 18, 2018Date of Patent: August 13, 2019Assignee: Mitsubishi Electric CorporationInventors: Hironori Nakahara, Nobuo Takeshita, Masaharu Ogawa
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Patent number: 10334218Abstract: A video reproduction device (100) reproduces expanded video data (DV1) whose brightness dynamic range is wider than a standard video. The video reproduction device (100) includes a brightness information adjustment unit (150). The brightness information adjustment unit (150) changes first output brightness levels of the expanded video data (DV1) to second output brightness levels. When the expanded video data (DV1) is reproduced at a second reproduction speed faster than a first reproduction speed which is a normal speed, the brightness information adjustment unit (150) reduces the first output brightness levels to the second output brightness levels.Type: GrantFiled: June 22, 2016Date of Patent: June 25, 2019Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Masaaki Shimada, Nobuo Takeshita, Kosuke Yagi
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Publication number: 20180309929Abstract: A wobble detection device includes a sensor unit. The sensor unit includes a one-dimensional image sensor and a one-dimensional image sensor arranged side by side in an auxiliary scanning direction so that their corresponding pixels coincide with each other in a main scanning direction, and acquires an image of an object moving in the auxiliary scanning direction as one-dimensional data. The wobble detection device makes a comparison of data corresponding to the same image region by using one-dimensional data acquired by the one-dimensional image sensor and one-dimensional data acquired by the one-dimensional image sensor and thereby detects a movement amount of the image in the main scanning direction between a time when the one-dimensional data used for the comparison was acquired and a time when the one-dimensional data used for the comparison was acquired.Type: ApplicationFiled: December 22, 2016Publication date: October 25, 2018Applicant: Mitsubishi Electric CorporationInventors: Hironori NAKAHARA, Nobuo TAKESHITA
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Publication number: 20180268857Abstract: In a multilayer optical disc having information layers conforming to a plurality of different optical disc standards, because the type of each information layer is not recorded in the other information layers, in read and write operations by a compatible optical disc device conforming to a plurality of optical disc standards, every time the information layer being accessed changes, it has been necessary to read the type of the information layer and select a method of generating a tracking error signal adapted to the type of information layer, so access has taken time. In order to solve the above problem, in the optical multilayer disc according to the present invention, having information layers conforming to a plurality of different optical disc standards, in an area in one of the information layers, information about the other information layers is recorded. The time required to access the other information layers can be reduced by using this information to select a tracking error signal generating method.Type: ApplicationFiled: May 18, 2018Publication date: September 20, 2018Applicant: Mitsubishi Electric CorporationInventors: Hironori NAKAHARA, Nobuo TAKESHITA, Masaharu OGAWA
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Patent number: 10002634Abstract: In a multilayer optical disc having information layers conforming to a plurality of different optical disc standards, because the type of each information layer is not recorded in the other information layers, in read and write operations by a compatible optical disc device conforming to a plurality of optical disc standards, every time the information layer being accessed changes, it has been necessary to read the type of the information layer and select a method of generating a tracking error signal adapted to the type of information layer, so access has taken time. In order to solve the above problem, in the optical multilayer disc according to the present invention, having information layers conforming to a plurality of different optical disc standards, in an area in one of the information layers, information about the other information layers is recorded. The time required to access the other information layers can be reduced by using this information to select a tracking error signal generating method.Type: GrantFiled: June 27, 2017Date of Patent: June 19, 2018Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Hironori Nakahara, Nobuo Takeshita, Masaharu Ogawa
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Patent number: 9958376Abstract: A floating particle detection device 1 is capable of accurately identifying the type of a floating particle while achieving simplification of a configuration of the device, the device includes: a laser light irradiator (10) that includes a laser light emitting element (11) and a back-monitor-use light receiving element (12); a scattered light receiver (20) that selectively receives light of a predetermined polarization component among scattered light generated when a floating particle (50) is irradiated and that generates a second detection signal; and an identification processor (30) that identifies the type of the floating particle on the basis of a first detection signal and the second detection signal. Incident light entering the back-monitor-use light receiving element (12) includes: a back-monitor-use laser beam (L0); and backscattered light (Lbs) travelling toward the laser light irradiator (10) among the scattered light (Ls).Type: GrantFiled: February 19, 2015Date of Patent: May 1, 2018Assignee: Mitsubishi Electric CorporationInventors: Kenya Nakai, Nobuo Takeshita
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Publication number: 20180115761Abstract: A video reproduction device (100) reproduces expanded video data (DV1) whose brightness dynamic range is wider than a standard video. The video reproduction device (100) includes a brightness information adjustment unit (150). The brightness information adjustment unit (150) changes first output brightness levels of the expanded video data (DV1) to second output brightness levels. When the expanded video data (DV1) is reproduced at a second reproduction speed faster than a first reproduction speed which is a normal speed, the brightness information adjustment unit (150) reduces the first output brightness levels to the second output brightness levels.Type: ApplicationFiled: June 22, 2016Publication date: April 26, 2018Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Masaaki SHIMADA, Nobuo TAKESHITA, Kosuke YAGI
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Patent number: 9936176Abstract: An image projection device includes: a light source for emitting a light beam; a mirror unit that includes a mirror for reflecting the beam and projects an image onto a surface by rotating the mirror about a rotational axis to scan the beam; and a controller for determining, according to a function representing a relationship between a shift amount, an emitting time of the beam, a position on the surface irradiated by the beam emitted at the emitting time, and a shift angle of the mirror from its position when it is not driven, the emitting time corresponding to a target position. The shift amount is a shift amount of a position of the beam incident on the mirror or a shift amount of a position of the source relative to an optical axis of light incident on the mirror without the shift amount and perpendicularly intersecting the rotational axis.Type: GrantFiled: January 7, 2015Date of Patent: April 3, 2018Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Kenya Nakai, Nobuo Takeshita
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Publication number: 20170353628Abstract: An image display apparatus includes: a light source unit including three or more light sources, combining lights from the light sources and emitting the combined light; a wavelength detector that detects, for each light source, wavelength information indicating the wavelength of light from the light source; a color value determiner that determines, for each light source, from the wavelength information, a color value indicating a color of light from the light source in a predetermined color space; a correction value determiner that determines, based on the color values, a correction value for correcting a ratio between the intensities of lights from the light sources so that the color of the combined light is a color to be displayed; and a driver that drives the light sources so that the ratio between the intensities of lights from the light sources is a ratio corrected based on the correction value.Type: ApplicationFiled: January 7, 2016Publication date: December 7, 2017Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Tomo KISHIGAMI, Nobuo TAKESHITA
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Patent number: 9817233Abstract: The image display device (100) provides images perceivable from the area of the eye box (E), and includes a light source unit (110), a screen (140), a scanning unit (130) and an optical system (155). The screen (140) has a single micro lens array (1) on which multiple micro lenses (3) are arranged. The scanning unit (130) includes a mirror (130a) to reflect beams emitted from the light source unit (110), and swings the mirror (130a) around a pivot center (130c) to scan the beams thereover, thereby generating images. The optical system (155) brings the images formed on the screen (140) to the eye box (E). An angle (?out) formed between a zero-order diffracted beam and a first-order diffracted beam, which are among a luminous flux of beams diffracted by the screen (140) and pass through the center of the eye box (E), is smaller than a minimum visual angle (Vmin).Type: GrantFiled: August 25, 2015Date of Patent: November 14, 2017Assignee: Mitsubishi Electric CorporationInventors: Nozomi Nakagawa, Hironori Nakahara, Tomo Kishigami, Nobuo Takeshita
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Patent number: 9800844Abstract: An image projection apparatus (1) joins a plurality of display images displayed by scanning a plurality of light beams, as if there is no seam between them, thereby displaying a large-sized high-quality image. The image projection apparatus (1) includes a MEMS mirror device (11), a MEMS mirror control unit (13), and a laser beam detector (19).Type: GrantFiled: April 18, 2014Date of Patent: October 24, 2017Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Hironori Nakahara, Tomo Kishigami, Toshiya Matozaki, Nobuo Takeshita
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Publication number: 20170294204Abstract: In a multilayer optical disc having information layers conforming to a plurality of different optical disc standards, because the type of each information layer is not recorded in the other information layers, in read and write operations by a compatible optical disc device conforming to a plurality of optical disc standards, every time the information layer being accessed changes, it has been necessary to read the type of the information layer and select a method of generating a tracking error signal adapted to the type of information layer, so access has taken time. In order to solve the above problem, in the optical multilayer disc according to the present invention, having information layers conforming to a plurality of different optical disc standards, in an area in one of the information layers, information about the other information layers is recorded. The time required to access the other information layers can be reduced by using this information to select a tracking error signal generating method.Type: ApplicationFiled: June 27, 2017Publication date: October 12, 2017Applicant: Mitsubishi Electric CorporationInventors: Hironori NAKAHARA, Nobuo TAKESHITA, Masaharu OGAWA
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Publication number: 20170285341Abstract: The image display device (100) provides images perceivable from the area of the eye box (E), and includes a light source unit (110), a screen (140), a scanning unit (130) and an optical system (155). The screen (140) has a single micro lens array (1) on which multiple micro lenses (3) are arranged. The scanning unit (130) includes a mirror (130a) to reflect beams emitted from the light source unit (110), and swings the mirror (130a) around a pivot center (130c) to scan the beams thereover, thereby generating images. The optical system (155) brings the images formed on the screen (140) to the eye box (E). An angle (?out) formed between a zero-order diffracted beam and a first-order diffracted beam, which are among a luminous flux of beams diffracted by the screen (140) and pass through the center of the eye box (E), is smaller than a minimum visual angle (Vmin).Type: ApplicationFiled: August 25, 2015Publication date: October 5, 2017Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Nozomi NAKAGAWA, Hironori NAKAHARA, Tomo KISHIGAMI, Nobuo TAKESHITA
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Patent number: 9741387Abstract: In a multilayer optical disc having information layers conforming to a plurality of different optical disc standards, because the type of each information layer is not recorded in the other information layers, in read and write operations by a compatible optical disc device conforming to a plurality of optical disc standards, every time the information layer being accessed changes, it has been necessary to read the type of the information layer and select a method of generating a tracking error signal adapted to the type of information layer, so access has taken time. In order to solve the above problem, in the optical multilayer disc according to the present invention, having information layers conforming to a plurality of different optical disc standards, in an area in one of the information layers, information about the other information layers is recorded. The time required to access the other information layers can be reduced by using this information to select a tracking error signal generating method.Type: GrantFiled: August 20, 2015Date of Patent: August 22, 2017Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Hironori Nakahara, Nobuo Takeshita, Masaharu Ogawa