Patents by Inventor Yasunaga Miyazawa
Yasunaga Miyazawa 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: 7959299Abstract: A projector including a lighting device for emitting light including first, second and third colored light beams. A first dichroic mirror separates the light into the first colored light beam by reflecting the light in a certain wavelength range and transmitting the light in another wavelength range and transmitting the light in another wavelength range. A second dichroic mirror separates the other colored light beams into the second and third colored light beams by reflecting the light in a certain wavelength range and transmitting the light in another wavelength range. The second dichroic mirror separates the light from the lighting device into the colored light beams. The projector including a first color combining optical system for combining the colored light beams to emit a first image light beam.Type: GrantFiled: March 18, 2008Date of Patent: June 14, 2011Assignee: Seiko Epson CorporationInventor: Yasunaga Miyazawa
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Patent number: 7942534Abstract: A projector, includes: an illumination device that radiates plural colors of light in a time-sharing manner; a reflective optical modulator that forms, based on input image information, an optical image for each of the plural colors of light radiated from the illumination device in a time-sharing manner; a projection optical device that projects the optical images of the plural colors of light formed by the reflective optical modulator; and a controller that controls the illumination device and the reflective optical modulator, the controller including: an image information analyzer that analyzes the input image information; and an illumination time controller that dynamically changes and controls illumination time of the plural colors of light by the illumination device based on an analysis result by the image information analyzer.Type: GrantFiled: October 29, 2007Date of Patent: May 17, 2011Assignee: Seiko Epson CorporationInventor: Yasunaga Miyazawa
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Patent number: 7926957Abstract: A multi projection display includes a plurality of projector units to modulate light from an LED light source according to image information to project, a unit image information generating unit to generate unit image information to be inputted to each of the plurality of projector units, and a unit image information correcting unit to correct the unit image information based on a result of capturing projection images projected onto a transmissive screen. For this reason, a shutter, which results in complicating the construction, is not needed and further it is possible to further reduce the adjustment time.Type: GrantFiled: July 16, 2009Date of Patent: April 19, 2011Assignee: Seiko Epson CorporationInventors: Yasunaga Miyazawa, Hiroshi Hasegawa
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Patent number: 7918560Abstract: A projector includes an illuminator; a first image formation unit including a first optical unit having a light modulation element that modulates the light from the illuminator, the first image formation unit using the first optical unit to output first image light; a second image formation unit including a second optical unit having a light modulation element that modulates the light from the illuminator, the second image formation unit using the second optical unit to output second image light; a polarization combining system that combines the first image light outputted from the first image formation unit and the second image light outputted from the second image formation unit; a projection system that projects the image light combined by the polarization combining system; projection position adjusters that optically adjust the projection positions of the light modulation elements on a projection surface; and a pixel value generator that generates the pixel value for each pixel contained in the light moduType: GrantFiled: March 18, 2008Date of Patent: April 5, 2011Assignee: Seiko Epson CorporationInventor: Yasunaga Miyazawa
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Patent number: 7889952Abstract: An information processing device that includes: a correction parameter storage unit that stores therein an individual correction parameter for each of a plurality of projectors connected to the information processing device for use to individually perform an image correction process of enabling appropriate image display by each of the projectors; a correction parameter combination process unit that calculates a combined correction parameter by combining together the individual correction parameters for the projectors; a combined correction image data generation unit that generates combined correction image data by performing the image correction process with respect to an incoming image source based on the combined correction parameter; and an image data transmission unit that transmits the combined correction image data to any of the projectors.Type: GrantFiled: July 18, 2007Date of Patent: February 15, 2011Assignee: Seiko Epson CorporationInventor: Yasunaga Miyazawa
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Patent number: 7876285Abstract: A projection system includes: plural projectors that modulate a light beam on the basis of image data, each of the projectors including: an image-data restoring unit and an individual image correction processing unit; a signal transmitting device that connects an information processing apparatus and the projectors and transmits image data to the projectors; and information processing apparatus that includes: a common image correction processing unit and an image-data transmitting unit.Type: GrantFiled: July 23, 2007Date of Patent: January 25, 2011Assignee: Seiko Epson CorporationInventor: Yasunaga Miyazawa
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Patent number: 7874685Abstract: A projection system includes an information processing device for processing image information, a projector for modulating a light beam emitted from a light source device in accordance with the image information processed by the information processing device and enlargedly projecting the modulated light beam, and an information transfer section for connecting the information processing device and the projector to each other so as to communicate information. The projector includes, a cooling device for cooling internal heat generator, and a power generation section for supplying at least the cooling device with a drive voltage based on the electric power supplied via the electric power transmission path. The information processing device includes a cooling device control section for generating a control instruction for performing drive control of the cooling device and for outputting the control instruction to the cooling device via the information transfer section.Type: GrantFiled: October 27, 2006Date of Patent: January 25, 2011Assignee: Seiko Epson CorporationInventor: Yasunaga Miyazawa
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Patent number: 7872216Abstract: A projector includes a first image formation unit including a first color separation system, first to third light modulation elements, and a first color combining system; a second image formation unit including a second color separation system, fourth to sixth light modulation elements, and a second color combining system; a polarization combining system that combines an image light beam outputted from the first image formation unit and an image light beam outputted from the second image formation unit; and a projection system that projects the image light beam that has been combined in the polarization combining system.Type: GrantFiled: May 15, 2008Date of Patent: January 18, 2011Assignee: Seiko Epson CorporationInventor: Yasunaga Miyazawa
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Publication number: 20100328552Abstract: Exemplary embodiments provide a projection-type display apparatus, which can address or realize a reduction in weight and size, a reduction in power consumption, and a reduction in noise, and address or realize a reduction in price, and a control method for the projection-type display apparatus, as well as a control program for the projection-type display apparatus. The projection-type display apparatus includes a solid-state light source that emits light, a mirror device that controls an emitting direction of the incident light to thereby subject the incident light to temporal modulation, and a projecting device that projects the modulated light.Type: ApplicationFiled: September 7, 2010Publication date: December 30, 2010Applicant: Seiko Epson CorporationInventors: Yasunaga MIYAZAWA, Hiroshi HASEGAWA
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Patent number: 7847804Abstract: An image display system includes: an information processing device that applies a predetermined correction process to image data for display; and an image display device that displays an image based on the image data through with the correction process in the information processing device. In the image display system, the information processing device includes a first image correction computing section that applies, to the image data, any correction process designed based on performance capabilities of the information processing device among a plurality of correction processes that are for application to the image data, and the image display device includes a second image correction computing section that applies, to the image data being a result of the correction process in the information processing device, any correction process being a part of the plurality of correction processes that are for application to the image data but not the correction process to be executed in the information processing device.Type: GrantFiled: July 5, 2007Date of Patent: December 7, 2010Assignee: Seiko Epson CorporationInventor: Yasunaga Miyazawa
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Patent number: 7841722Abstract: A projection system includes an image processing apparatus, a projector having an optical modulation element and a projection optical apparatus, and a digital communication unit. The image processing apparatus performs a projector correction process to generate first correction processed image data and an original display correction process to generate a second correction processed image data and generates difference data for a difference between the first correction processed image data and the second correction processed image data, and transmits the difference data to the projector through the digital communication unit. The projector performs the projector correction process on the image data to generate the first correction processed image data and a correction process based on the difference data on the first correction processed image data to generate the second correction processed image data, and controls the optical modulation element based on the second correction processed image data.Type: GrantFiled: February 7, 2007Date of Patent: November 30, 2010Assignee: Seiko Epson CorporationInventors: Yasunaga Miyazawa, Mitsuhiro Inazumi, Toshiki Fujimori
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Patent number: 7810930Abstract: Exemplary embodiments provide a projection-type display apparatus, which can address or realize a reduction in weight and size, a reduction in power consumption, and a reduction in noise, and address or realize a reduction in price, and a control method for the projection-type display apparatus, as well as a control program for the projection-type display apparatus. The projection-type display apparatus includes a solid-state light source that emits light, a mirror device that controls an emitting direction of the incident light to thereby subject the incident light to temporal modulation, and a projecting device that projects the modulated light.Type: GrantFiled: September 23, 2009Date of Patent: October 12, 2010Assignee: Seiko Epson CorporationInventors: Yasunaga Miyazawa, Hiroshi Hasegawa
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Publication number: 20100253920Abstract: A projector includes: a light source which emits light; a light modulating device which modulates the light emitted from the light source according to image information; an image forming system which forms an image corresponding to the optical image formed by the light modulating device of modulated light which is modulated by the light modulation device at an image forming position; a polarized light emitting unit disposed at the image forming position of the image forming system to selectively convert the polarization direction of a part of entering light; and a projecting device which projects the light from the polarized light emitting unit.Type: ApplicationFiled: March 29, 2010Publication date: October 7, 2010Applicant: Seiko Epson CorporationInventor: Yasunaga MIYAZAWA
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Publication number: 20100225885Abstract: A projector includes: a first optical device, and a first color combining optical device; a second optical device, and a second color combining optical device; a combining optical device adapted to combine emission light emitted respectively from the first optical device and the second optical device; a first polarization conversion device disposed between the first optical device and the combining optical device, and adapted to align a polarization direction of the emission light from the first optical device into a first polarization direction; and a second polarization conversion device disposed between the second optical device and the combining optical device, and adapted to align a polarization direction of the emission light from the second optical device into a second polarization direction.Type: ApplicationFiled: February 19, 2010Publication date: September 9, 2010Applicant: SEIKO EPSON CORPORATIONInventor: Yasunaga MIYAZAWA
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Patent number: 7768688Abstract: An image display device having an optical modulation element, which modulates light emitted from a light source according to display information, and displaying a display image based on the display information includes: a unit adjusting the amount of illumination light with respect to light emitted from the light source on the basis of brightness information on the brightness of the display image based on the display information; a color conversion processing unit that performs a color conversion process according to the brightness information with respect to the display information so that the display image can be color-reproduced within a predetermined color space; and a display and driving unit that drives the optical modulation element on the basis of the display information having been subjected to the color conversion process so as to display the display image.Type: GrantFiled: June 13, 2008Date of Patent: August 3, 2010Assignee: Seiko Epson CorporationInventors: Yasunaga Miyazawa, Hiroshi Hasegawa, Hidehito Iisaka, Hidehiro Akahane, Takashi Toyooka
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Patent number: 7746530Abstract: An image display device having an optical modulation element, which modulates light emitted from a light source according to display information, and displaying a display image based on the display information includes: a unit adjusting the amount of illumination light with respect to light emitted from the light source on the basis of brightness information on the brightness of the display image based on the display information; a color conversion processing unit that performs a color conversion process according to the brightness information with respect to the display information so that the display image can be color-reproduced within a predetermined color space; and a display and driving unit that drives the optical modulation element on the basis of the display information having been subjected to the color conversion process so as to display the display image.Type: GrantFiled: June 13, 2008Date of Patent: June 29, 2010Assignee: Seiko Epson CorporationInventors: Yasunaga Miyazawa, Hiroshi Hasegawa, Hidehito Iisaka, Hidehiro Akahane, Takashi Toyooka
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Patent number: 7742056Abstract: An image display system includes: an information processing apparatus that performs predetermined correction processing for image data to be displayed; and an image display apparatus that displays an image on the basis of the image data correction-processed in the information processing apparatus. The information processing apparatus includes a first image correction operation processing section that executes, for the image data, correction processing set on the basis of characteristics of the image data of a plurality of correction processing to be performed for the image data. The image display apparatus includes a second image correction operation processing section that executes, for the image data correction-processed in the information processing apparatus, correction processing other than correction processing executed in the information processing apparatus of the plurality of correction processing to be performed for the image data.Type: GrantFiled: June 27, 2007Date of Patent: June 22, 2010Assignee: Seiko Epson CorporationInventor: Yasunaga Miyazawa
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Patent number: 7717565Abstract: Exemplary embodiments provide a projection-type display apparatus, which can address or realize a reduction in weight and size, a reduction in power consumption, and a reduction in noise, and address or realize a reduction in price, and a control method for the projection-type display apparatus, as well as a control program for the projection-type display apparatus. The projection-type display apparatus includes a solid-state light source that emits light, a mirror device that controls an emitting direction of the incident light to thereby subject the incident light to temporal modulation, and a projecting device that projects the modulated light.Type: GrantFiled: April 24, 2008Date of Patent: May 18, 2010Assignee: Seiko Epson CorporationInventors: Yasunaga Miyazawa, Hiroshi Hasegawa
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Publication number: 20100053562Abstract: Exemplary embodiments provide a projection-type display apparatus, which can address or realize a reduction in weight and size, a reduction in power consumption, and a reduction in noise, and address or realize a reduction in price, and a control method for the projection-type display apparatus, as well as a control program for the projection-type display apparatus. The projection-type display apparatus includes a solid-state light source that emits light, a mirror device that controls an emitting direction of the incident light to thereby subject the incident light to temporal modulation, and a projecting device that projects the modulated light.Type: ApplicationFiled: September 23, 2009Publication date: March 4, 2010Applicant: Seiko Epson CorporationInventors: Yasunaga Miyazawa, Hiroshi Hasegawa
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Patent number: 7659880Abstract: An image display device includes a total luminance value detection portion that detects a total luminance value in an entire image; a level detection portion that detects whether the total luminance value exceeds a specific level; and an incident light level lowering processing portion that performs processing to reduce an illumination light quantity from a light source that goes incident on a light modulation element in accordance with a function of the total luminance value when the level detection portion detects that the total luminance value exceeds the specific level.Type: GrantFiled: February 15, 2006Date of Patent: February 9, 2010Assignee: Seiko Epson CorporationInventor: Yasunaga Miyazawa