Patents by Inventor Yoshiki Kajita
Yoshiki Kajita 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: 11526010Abstract: A head mounted display device including a first image capturing unit and a second image capturing unit different from the first image capturing unit comprises a first generation unit configured to generate, based on a signal representing an image output timing of the first image capturing unit, a first signal for controlling a start of exposure of the second image capturing unit, and supply the generated first signal to the second image capturing unit, and a second generation unit configured to generate, based on the signal representing the image output timing of the first image capturing unit, a second signal for controlling a start of measurement of a sensor that measures a position and orientation of the sensor, and supply the generated second signal to the sensor.Type: GrantFiled: January 20, 2021Date of Patent: December 13, 2022Assignee: CANON KABUSHIKI KAISHAInventor: Yoshiki Kajita
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Patent number: 11366315Abstract: This invention provides an image processing apparatus configured to communicate with a head mounted display, which comprises a display device and an optical system for imaging an image displayed on the display device in relation to a user's eyes, and to generate image data for displaying on the display device of the head mounted display, wherein the image processing apparatus comprises a generating unit configured to generate image data for displaying on the display device, and an image processing unit configured to, with regard to the image data generated by the generating unit, in relation to inside a visible area of the optical system, perform image processing for correcting a deterioration of image quality by the optical system.Type: GrantFiled: August 27, 2020Date of Patent: June 21, 2022Assignee: CANON KABUSHIKI KAISHAInventor: Yoshiki Kajita
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Publication number: 20210231950Abstract: A head mounted display device including a first image capturing unit and a second image capturing unit different from the first image capturing unit comprises a first generation unit configured to generate, based on a signal representing an image output timing of the first image capturing unit, a first signal for controlling a start of exposure of the second image capturing unit, and supply the generated first signal to the second image capturing unit, and a second generation unit configured to generate, based on the signal representing the image output timing of the first image capturing unit, a second signal for controlling a start of measurement of a sensor that measures a position and orientation of the sensor, and supply the generated second signal to the sensor.Type: ApplicationFiled: January 20, 2021Publication date: July 29, 2021Inventor: Yoshiki Kajita
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Publication number: 20210063732Abstract: This invention provides an image processing apparatus configured to communicate with a head mounted display, which comprises a display device and an optical system for imaging an image displayed on the display device in relation to a user's eyes, and to generate image data for displaying on the display device of the head mounted display, wherein the image processing apparatus comprises a generating unit configured to generate image data for displaying on the display device, and an image processing unit configured to, with regard to the image data generated by the generating unit, in relation to inside a visible area of the optical system, perform image processing for correcting a deterioration of image quality by the optical system.Type: ApplicationFiled: August 27, 2020Publication date: March 4, 2021Inventor: Yoshiki Kajita
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Patent number: 10802785Abstract: An HMD (10a) generates region information indicating a region having, as an axis, a line which passes through the position of the HMD (10a) and that of a wireless I/F (105a). The HMD acquires position information of each of wireless I/Fs of other image processing apparatuses (11b, 11c). The HMD determines if the position indicated by the acquired position information is included in the region indicated by the region information. The HMD selects one of the wireless I/F (105a) and other wireless I/Fs as a wireless communication partner according to the determination result, and receives images via wireless communication with the selected wireless I/F.Type: GrantFiled: May 4, 2016Date of Patent: October 13, 2020Assignee: Canon Kabushiki KaishaInventors: Yoshiki Kajita, Takuya Tsujimoto, Kazuhide Miyata
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Patent number: 10635380Abstract: An HMD (10a) generates region information indicating a region having, as an axis, a line which passes through the position of the HMD (10a) and that of a wireless I/F (105a). The HMD acquires position information of each of wireless I/Fs of other image processing apparatuses (11b, 11c). The HMD determines if the position indicated by the acquired position information is included in the region indicated by the region information. The HMD selects one of the wireless I/F (105a) and other wireless I/Fs as a wireless communication partner according to the determination result, and receives images via wireless communication with the selected wireless I/F.Type: GrantFiled: July 29, 2008Date of Patent: April 28, 2020Assignee: Canon Kabushiki KaishaInventors: Yoshiki Kajita, Takuya Tsujimoto, Kazuhide Miyata
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Publication number: 20160321022Abstract: An HMD (10a) generates region information indicating a region having, as an axis, a line which passes through the position of the HMD (10a) and that of a wireless I/F (105a). The HMD acquires position information of each of wireless I/Fs of other image processing apparatuses (11b, 11c). The HMD determines if the position indicated by the acquired position information is included in the region indicated by the region information. The HMD selects one of the wireless I/F (105a) and other wireless I/Fs as a wireless communication partner according to the determination result, and receives images via wireless communication with the selected wireless I/F.Type: ApplicationFiled: May 4, 2016Publication date: November 3, 2016Inventors: Yoshiki Kajita, Takuya Tsujimoto, Kazuhide Miyata
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Patent number: 9390480Abstract: A display apparatus with an image-capturing function includes an outputting unit configured to output an image signal to an external apparatus, an inputting unit configured to input an image signal from the external apparatus, an image-capturing unit, a display unit, an image-capture-distortion corrector configured to perform image-capture-distortion correction on an image signal captured by the image-capturing unit, a display-distortion corrector configured to perform display-distortion correction, and a controller configured to control whether or not the image-capture-distortion corrector is to perform the image-capture-distortion correction, and whether or not the display-distortion corrector is to perform the display-distortion correction.Type: GrantFiled: January 6, 2015Date of Patent: July 12, 2016Assignee: Canon Kabushiki KaishaInventors: Yoshiki Kajita, Akihiro Katayama, Shinji Uchiyama, Masahiro Suzuki, Takuya Tsujimoto
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Publication number: 20150116359Abstract: A display apparatus with an image-capturing function includes an outputting unit configured to output an image signal to an external apparatus, an inputting unit configured to input an image signal from the external apparatus, an image-capturing unit, a display unit, an image-capture-distortion corrector configured to perform image-capture-distortion correction on an image signal captured by the image-capturing unit, a display-distortion corrector configured to perform display-distortion correction, and a controller configured to control whether or not the image-capture-distortion corrector is to perform the image-capture-distortion correction, and whether or not the display-distortion corrector is to perform the display-distortion correction.Type: ApplicationFiled: January 6, 2015Publication date: April 30, 2015Inventors: Yoshiki Kajita, Akihiro Katayama, Shinji Uchiyama, Masahiro Suzuki, Takuya Tsujimoto
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Patent number: 8953057Abstract: A display apparatus with an image-capturing function includes an outputting unit configured to output an image signal to an external apparatus, an inputting unit configured to input an image signal from the external apparatus, an image-capturing unit, a display unit, an image-capture-distortion corrector configured to perform image-capture-distortion correction on an image signal captured by the image-capturing unit, a display-distortion corrector configured to perform display-distortion correction, and a controller configured to control whether or not the image-capture-distortion corrector is to perform the image-capture-distortion correction, and whether or not the display-distortion corrector is to perform the display-distortion correction.Type: GrantFiled: May 22, 2007Date of Patent: February 10, 2015Assignee: Canon Kabushiki KaishaInventors: Yoshiki Kajita, Akihiro Katayama, Shinji Uchiyama, Masahiro Suzuki, Takuya Tsujimoto
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Patent number: 8165391Abstract: If a pixel of interest on a line of interest is located in an attribute region different from that in which a pixel immediately preceding the pixel of interest is located, the luminance value and color difference values of the pixel of interest are recorded in this order adjacent to data recorded in a data packet set for the line of interest (S811). If the pixel of interest is located in the same attribute region as that in which the preceding pixel is located, the luminance value of the pixel of interest is recorded adjacent to the data recorded in the data packet (S812). The data packet generated by executing the above recording process on each pixel forming the line is output.Type: GrantFiled: June 2, 2008Date of Patent: April 24, 2012Assignee: Canon Kabushiki KaishaInventors: Yoshiki Kajita, Takuya Tsujimoto
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Patent number: 7660044Abstract: An image display apparatus has light beam emitting units (304L, 304R) which emit light beams based on image information and a set operating frequency, and MEMS mirrors (305L, 305R) which deflect the emitted light beams by deflection operations based on the operating frequency, in correspondence with the right and left eyes. Resonance frequency detection units (306L, 306R) respectively detect the resonance frequencies of the MEMS mirrors (305L, 305R). A control unit (307) sets the operating frequency of the MEMS mirrors (305L, 305R) based on the detected resonance frequencies.Type: GrantFiled: March 6, 2009Date of Patent: February 9, 2010Assignee: Canon Kabushiki KaishaInventors: Yoshiki Kajita, Hiroyuki Nakanishi, Hiroichi Yamaguchi
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Publication number: 20090231721Abstract: An image display apparatus has light beam emitting units (304L, 304R) which emit light beams based on image information and a set operating frequency, and MEMS mirrors (305L, 305R) which deflect the emitted light beams by deflection operations based on the operating frequency, in correspondence with the right and left eyes. Resonance frequency detection units (306L, 306R) respectively detect the resonance frequencies of the MEMS mirrors (305L, 305R). A control unit (307) sets the operating frequency of the MEMS mirrors (305L, 305R) based on the detected resonance frequencies.Type: ApplicationFiled: March 6, 2009Publication date: September 17, 2009Applicant: CANON KABUSHIKI KAISHAInventors: Yoshiki Kajita, Hiroyuki Nakanishi, Hiroichi Yamaguchi
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Publication number: 20090033588Abstract: An HMD (10a) generates region information indicating a region having, as an axis, a line which passes through the position of the HMD (10a) and that of a wireless I/F (105a). The HMD acquires position information of each of wireless I/Fs of other image processing apparatuses (11b, 11c). The HMD determines if the position indicated by the acquired position information is included in the region indicated by the region information. The HMD selects one of the wireless I/F (105a) and other wireless I/Fs as a wireless communication partner according to the determination result, and receives images via wireless communication with the selected wireless I/F.Type: ApplicationFiled: July 29, 2008Publication date: February 5, 2009Applicant: CANON KABUSHIKI KAISHAInventors: Yoshiki Kajita, Takuya Tsujimoto, Kazuhide Miyata
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Publication number: 20080304737Abstract: If a pixel of interest on a line of interest is located in an attribute region different from that in which a pixel immediately preceding the pixel of interest is located, the luminance value and color difference values of the pixel of interest are recorded in this order adjacent to data recorded in a data packet set for the line of interest (S811). If the pixel of interest is located in the same attribute region as that in which the preceding pixel is located, the luminance value of the pixel of interest is recorded adjacent to the data recorded in the data packet (S812). The data packet generated by executing the above recording process on each pixel forming the line is output.Type: ApplicationFiled: June 2, 2008Publication date: December 11, 2008Applicant: CANON KABUSHIKI KAISHAInventors: Yoshiki Kajita, Takuya Tsujimoto
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Publication number: 20070268316Abstract: A display apparatus with an image-capturing function includes an outputting unit configured to output an image signal to an external apparatus, an inputting unit configured to input an image signal from the external apparatus, an image-capturing unit, a display unit, an image-capture-distortion corrector configured to perform image-capture-distortion correction on an image signal captured by the image-capturing unit, a display-distortion corrector configured to perform display-distortion correction, and a controller configured to control whether or not the image-capture-distortion corrector is to perform the image-capture-distortion correction, and whether or not the display-distortion corrector is to perform the display-distortion correction.Type: ApplicationFiled: May 22, 2007Publication date: November 22, 2007Applicant: CANON KABUSHIKI KAISHAInventors: Yoshiki Kajita, Akihiro Katayama, Shinji Uchiyama, Masahiro Suzuki, Takuya Tsujimoto
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Patent number: 4549258Abstract: Herein disclosed is an inverter device which includes two or more groups of unit switching circuits connected in parallel with a d.c. power source and each having gate turn-off thyristors connected in series with each other. Further inclusive are current balancing reactors, which are respectively connected between the series nodes of the gate turn-off thyristors of the respective groups, and a.c. output terminals respectively leading out from intermediate points of the aforementioned reactors.Type: GrantFiled: March 3, 1983Date of Patent: October 22, 1985Assignees: Hitachi, Ltd., Hitachi Engineering Co., Ltd.Inventors: Mitsuyuki Honbu, Yasuo Matsuda, Katsunori Suzuki, Yoshiki Kajita