Patents by Inventor Hidetoshi Onuma
Hidetoshi Onuma 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: 11508296Abstract: An image generation apparatus outputs image data to a display apparatus, performs inverse conversion on image data, and transmits the image data to the display apparatus through an external data transmission line. The display apparatus includes a display device that is capable of displaying a High Dynamic Range (HDR) image or a Standard Dynamic Range (SDR) image through the external data transmission line. The inverse conversion is performed with respect to light emission characteristics of the display device. The image data is generated by the light emission characteristic inverse conversion unit. The transmission is performed in a case where light emission characteristics of the display device approximate an Electro-Optical Transfer Function (EOTF) of the HDR, a bit precision of image data is no lower than a bit precision of the external data transmission line, and an image of the HDR is to be displayed on the display device.Type: GrantFiled: June 21, 2021Date of Patent: November 22, 2022Assignee: CANON KABUSHIKI KAISHAInventors: Hidetoshi Onuma, Yasushi Ito, Manabu Umeyama
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Patent number: 11496652Abstract: An electronic apparatus provided with a display unit configured to display image data, comprises a synchronization control unit that generates a synchronization signal based on a display rate of the display unit, and an image processing unit that operates in accordance with an operating clock and execute image processing on image data to be displayed on the display unit at a display rate synchronized with the synchronization signal. The operating clock is not changed when the synchronization control unit changes a period of the synchronization signal in accordance with a change in a display rate of the display unit.Type: GrantFiled: October 2, 2020Date of Patent: November 8, 2022Assignee: CANON KABUSHIKI KAISHAInventors: Hidetoshi Onuma, Koichi Gunji, Yasushi Ito, Manabu Umeyama
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Publication number: 20210407400Abstract: An image generation apparatus outputs image data to a display apparatus, performs inverse conversion on image data, and transmits the image data to the display apparatus through an external data transmission line. The display apparatus includes a display device that is capable of displaying a High Dynamic Range (HDR) image or a Standard Dynamic Range (SDR) image through the external data transmission line. The inverse conversion is performed with respect to light emission characteristics of the display device. The image data is generated by the light emission characteristic inverse conversion unit. The transmission is performed in a case where light emission characteristics of the display device approximate an Electro-Optical Transfer Function (EOTF) of the HDR, a bit precision of image data is no lower than a bit precision of the external data transmission line, and an image of the HDR is to be displayed on the display device.Type: ApplicationFiled: June 21, 2021Publication date: December 30, 2021Inventors: Hidetoshi Onuma, Yasushi Ito, Manabu Umeyama
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Publication number: 20210105383Abstract: An electronic apparatus provided with a display unit configured to display image data, comprises a synchronization control unit that generates a synchronization signal based on a display rate of the display unit, and an image processing unit that operates in accordance with an operating clock and execute image processing on image data to be displayed on the display unit at a display rate synchronized with the synchronization signal. The operating clock is not changed when the synchronization control unit changes a period of the synchronization signal in accordance with a change in a display rate of the display unit.Type: ApplicationFiled: October 2, 2020Publication date: April 8, 2021Inventors: Hidetoshi ONUMA, Koichi GUNJI, Yasushi ITO, Manabu UMEYAMA
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Publication number: 20180270448Abstract: The present invention provides an image processing system includes a first image processing device and a second image processing device. The second image processing device includes: a combining unit that generates combined image data by combining captured image data input via a first input terminal and assistant image data input via a second input terminal; and a converting unit that generates image data of a first resolution to be output to a third output terminal and image data of a second resolution to be output to a fourth output terminal by converting a resolution of the combined image data generated by the combining unit in accordance with a display resolution of a first display device and a display resolution of a second display device.Type: ApplicationFiled: March 14, 2018Publication date: September 20, 2018Inventor: Hidetoshi Onuma
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Patent number: 9699384Abstract: An image pickup apparatus includes a first image reduction unit configured to reduce the size of an image output by an image pickup element, a memory configured to store the image reduced by the first image reduction unit, an external output unit configured to output the image stored in the memory, a display configured to display an image being shot, a second image reduction unit configured to reduce, to the display size on the display, the image reduced by the first image reduction unit, without causing the reduced image to be stored in the memory and a signal processor for the display configured to perform signal processing of the image reduced to the display size on the display.Type: GrantFiled: September 17, 2015Date of Patent: July 4, 2017Assignee: Canon Kabushiki KaishaInventors: Koichi Gunji, Hidetoshi Onuma, Yasuyuki Tanaka
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Patent number: 9432582Abstract: An image pickup apparatus includes a first image reduction unit configured to reduce the size of an image output by an image pickup element, a memory configured to store the image reduced by the first image reduction unit, an external output unit configured to output the image stored in the memory, a display configured to display an image being shot, a second image reduction unit configured to reduce, to the display size on the display, the image reduced by the first image reduction unit, without causing the reduced image to be stored in the memory and a signal processor for the display configured to perform signal processing of the image reduced to the display size on the display.Type: GrantFiled: January 2, 2014Date of Patent: August 30, 2016Assignee: Canon Kabushiki KaishaInventors: Koichi Gunji, Hidetoshi Onuma, Yasuyuki Tanaka
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Publication number: 20160006942Abstract: An image pickup apparatus includes a first image reduction unit configured to reduce the size of an image output by an image pickup element, a memory configured to store the image reduced by the first image reduction unit, an external output unit configured to output the image stored in the memory, a display configured to display an image being shot, a second image reduction unit configured to reduce, to the display size on the display, the image reduced by the first image reduction unit, without causing the reduced image to be stored in the memory and a signal processor for the display configured to perform signal processing of the image reduced to the display size on the display.Type: ApplicationFiled: September 17, 2015Publication date: January 7, 2016Inventors: Koichi Gunji, Hidetoshi Onuma, Yasuyuki Tanaka
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Publication number: 20140192231Abstract: An image pickup apparatus includes a first image reduction unit configured to reduce the size of an image output by an image pickup element, a memory configured to store the image reduced by the first image reduction unit, an external output unit configured to output the image stored in the memory, a display configured to display an image being shot, a second image reduction unit configured to reduce, to the display size on the display, the image reduced by the first image reduction unit, without causing the reduced image to be stored in the memory and a signal processor for the display configured to perform signal processing of the image reduced to the display size on the display.Type: ApplicationFiled: January 2, 2014Publication date: July 10, 2014Applicant: CANON KABUSHIKI KAISHAInventors: Koichi Gunji, Hidetoshi Onuma, Yasuyuki Tanaka
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Publication number: 20140132800Abstract: An image processing apparatus includes a memory storing image data and information data of plural layers to be combined on the image data, a first combination unit to generate first combined image data, and a second combination unit to generate second combined image data, the plurality of layers including a common layer containing information data used for both the first and second combined image data, and a unique layer containing information data used for one of the first and second combined image data and not used for the other, outputs first information data of the common layer from the memory to both units, outputs second information data for the first combined image data from the memory to the first combination unit, and outputs third information data for the second combined image data from the memory to the second combination unit.Type: ApplicationFiled: October 30, 2013Publication date: May 15, 2014Applicant: CANON KABUSHIKI KAISHAInventor: Hidetoshi Onuma
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Patent number: 7343045Abstract: This invention controls the code generation quantity adaptively with respect to the pattern of images and changes in the images, etc., so as to alleviate degradation in image quality, and to effectively reduce the spatial redundancy in order to provide a margin in the code quantity and to improve the overall image quality. An adaptive filter has a coefficient table memory that holds N coefficient tables, filter coefficients F1, F2 . . . FN that provide different filtering characteristics, a filter coefficient selecting 46 for selecting one filter coefficient Fk from filter coefficient tables and filter calculating unit performing prescribed calculations on the DCT coefficients using the selected filter coefficient FK.Type: GrantFiled: April 30, 2004Date of Patent: March 11, 2008Assignee: Texas Instruments IncorporatedInventors: Hidetoshi Onuma, Kohichi Murohashi
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Publication number: 20040228538Abstract: This invention controls the code generation quantity adaptively with respect to the pattern of images and changes in the images, etc., so as to alleviate degradation in image quality, and to effectively reduce the spatial redundancy in order to provide a margin in the code quantity and to improve the overall image quality. An adaptive filter has a coefficient table memory that holds N coefficient tables, filter coefficients F1, F2 . . . FN that provide different filtering characteristics, a filter coefficient selecting 46 for selecting one filter coefficient Fk from filter coefficient tables and filter calculating unit performing prescribed calculations on the DCT coefficients using the selected filter coefficient FK.Type: ApplicationFiled: April 30, 2004Publication date: November 18, 2004Inventors: Hidetoshi Onuma, Kohichi Murohashi
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Patent number: 6763450Abstract: The objective of the invention is to improve the processing efficiency of a system that repeatedly executes one instruction over multiple clock cycles. The SVP core 12 of this SVP (Scan-line Video Processor) 10 is made up of a three layer construction of the data input register (DIR) 16, the SIMD type digital signal processing unit 18, and the data output register (DOR) 20. The SIMD type digital signal processing unit 18 comprises a parallel arranged (connected) number of processing elements (PE0 to PEN−1) (for example, 864 units) equal to the number of pixels N on one horizontal scan line. The instruction generator (IG) 14, because the SVP core 12 operates as an SIMD parallel processor, internally houses a RAM or ROM program memory that holds the desired program.Type: GrantFiled: October 6, 2000Date of Patent: July 13, 2004Assignee: Texas Instruments IncorporatedInventors: Hiroshi Miyaguchi, Tsuyoshi Akiyama, Hidetoshi Onuma
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Patent number: 5710527Abstract: A voltage controlled oscillator has a linear voltage to current characteristic from ground to the supply voltage. This oscillator includes a voltage to current converter which employs two output current paths. The first output current path includes an N-type MOSFET whose gate receives the input voltage. A level shifter circuit receives the input voltage and provides an output voltage shifted up by an amount equal to the input threshold voltage of an N-type MOSFET. A clamp circuit connected to the output of the level shifter circuit prevents this output voltage from becoming greater than a voltage equal to the sum of the input threshold voltage of an N-type MOSFET and the input threshold voltage of a P-type MOSFET. The gate of the second N-type MOSFET receives the output of the level shifter as clamped by the clamp circuit. A current mirror circuit supplies a current control to ring oscillator, whose frequency depends upon the current. A second embodiment includes a new ring oscillator.Type: GrantFiled: September 19, 1996Date of Patent: January 20, 1998Assignee: Texas Instruments IncorporatedInventors: Yugi Yaguchi, Hidetoshi Onuma