Patents by Inventor Koichi Morishita
Koichi Morishita 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: 20100223409Abstract: A bus arbitration apparatus according to this invention appropriately arbitrates bus rights of use between a plurality of masters and a plurality of slaves so as to efficiently perform requested data transfer. An arbiter A 5 receives data transfer requests with respect to a slave A 3 generated by masters A 1 and B 2. The arbiter A 5 cooperates with an arbiter B 4, and arbitrates a contention of the data transfer requests with respect to the slave A 3 generated by the masters A 1 and B 2.Type: ApplicationFiled: June 12, 2007Publication date: September 2, 2010Applicant: CANON KABUSHIKI KAISHAInventors: Toshiaki Minami, Shunichi Kaizu, Yasunari Nagamatsu, Daisuke Shiraishi, Makoto Fujiwara, Koji Moriya, Koichi Morishita
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Patent number: 7685344Abstract: The remaining time period until the deadline of transfer by a device connected to a bus is measured, the remaining data size to be transferred by the device is detected, and the priority level of the device is set based on the remaining time period and the remaining data size.Type: GrantFiled: October 19, 2006Date of Patent: March 23, 2010Assignee: Canon Kabushiki KaishaInventors: Makoto Fujiwara, Koichi Morishita, Shunichi Kaizu
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Patent number: 7675523Abstract: To provide an image processing technique compatible with both a CCD and a CIS, which controls storage of image data read by each device in a memory and the read of the stored data for each rectangular area to obtain a high memory efficiency, an image processing apparatus includes a memory area control section which sets, for image data bitmapped on a first memory, a rectangular area divided in a main scanning direction and sub-scanning direction, an address generation section which generates address information to read out image data corresponding to the rectangular area in correspondence with the set rectangular area, a memory control section which reads out the image data corresponding to the rectangular area and DMA-transfers the image data to a second memory in accordance with the generated address information, and an image processing section which executes image processing for each rectangular area of the DMA-transferred data by using the second memory.Type: GrantFiled: July 17, 2006Date of Patent: March 9, 2010Assignee: Canon Kabushiki KiashaInventors: Katsutoshi Ushida, Yuichi Naoi, Yoshiaki Katahira, Yasuyuki Nakamura, Koichi Morishita, Makoto Fukuo
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Publication number: 20090268254Abstract: An image forming apparatus which forms a halftone image on a print medium (200) using multipass processing of scanning a single area on the print medium (200) by a printhead (220) N times and forming dots every scan operation includes a pass division table (410) used to set the print density ratio of each scan operation, a print data generation unit (370) which generates print data of each scan operation, a printer engine (180) which prints a halftone image on the print medium (200) on the basis of the generated print data, and a sensor (340) which detects the state of printing on the print medium (200) by the printer engine (180). The print data generation unit (370) corrects print data in synchronism with printing by the printer engine (180) on the basis of the set print density ratio and the detected printing state.Type: ApplicationFiled: April 8, 2009Publication date: October 29, 2009Applicant: CANON KABUSHIKI KAISHAInventors: Koichi Morishita, Hisashi Ishikawa
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Patent number: 7495669Abstract: To provide an image processing technique compatible with both a CCD and a CIS, which controls storage of image data read by each device in a memory and the read of the stored data for each rectangular area to obtain a high memory efficiency, an image processing apparatus includes a memory area control section which sets, for image data bitmapped on a first memory, a rectangular area divided in a main scanning direction and sub-scanning direction, an address generation section which generates address information to read out image data corresponding to the rectangular area in correspondence with the set rectangular area, a memory control section which reads out the image data corresponding to the rectangular area and DMA-transfers the image data to a second memory in accordance with the generated address information, and an image processing section which executes image processing for each rectangular area of the DMA-transferred data by using the second memory.Type: GrantFiled: December 19, 2003Date of Patent: February 24, 2009Assignee: Canon Kabushiki KaishaInventors: Katsutoshi Ushida, Yuichi Naoi, Yoshiaki Katahira, Yasuyuki Nakamura, Koichi Morishita, Makoto Fukuo
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Patent number: 7461187Abstract: A bus system which transfers data from a first device to a second device includes a holding unit which holds data input from the first device, and a selecting unit which selects whether to output the data from the first device to the second device by holding the data by the holding unit or without holding the data by the holding unit.Type: GrantFiled: July 6, 2006Date of Patent: December 2, 2008Assignee: Canon Kabushiki KaishaInventors: Koichi Morishita, Toshiaki Minami
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Publication number: 20070101031Abstract: The remaining time period until the deadline of transfer by a device connected to a bus is measured, the remaining data size to be transferred by the device is detected, and the priority level of the device is set based on the remaining time period and the remaining data size.Type: ApplicationFiled: October 19, 2006Publication date: May 3, 2007Inventors: Makoto Fujiwara, Koichi Morishita, Shunichi Kaizu
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Publication number: 20070011366Abstract: A bus system which transfers data from a first device to a second device includes a holding unit which holds data input from the first device, and a selecting unit which selects whether to output the data from the first device to the second device by holding the data by the holding unit or without holding the data by the holding unit.Type: ApplicationFiled: July 6, 2006Publication date: January 11, 2007Applicant: Canon Kabushiki KaishaInventors: Koichi Morishita, Toshiaki Minami
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Publication number: 20060256120Abstract: To provide an image processing technique compatible with both a CCD and a CIS, which controls storage of image data read by each device in a memory and the read of the stored data for each rectangular area to obtain a high memory efficiency, an image processing apparatus includes a memory area control section which sets, for image data bitmapped on a first memory, a rectangular area divided in a main scanning direction and sub-scanning direction, an address generation section which generates address information to read out image data corresponding to the rectangular area in correspondence with the set rectangular area, a memory control section which reads out the image data corresponding to the rectangular area and DMA-transfers the image data to a second memory in accordance with the generated address information, and an image processing section which executes image processing for each rectangular area of the DMA-transferred data by using the second memory.Type: ApplicationFiled: July 17, 2006Publication date: November 16, 2006Applicant: CANON KABUSHIKI KAISHAInventors: Katsutoshi Ushida, Yuichi Naoi, Yoshiaki Katahira, Yasuyuki Nakamura, Koichi Morishita, Makoto Fukuo
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Publication number: 20040130750Abstract: To provide an image processing technique compatible with both a CCD and a CIS, which controls storage of image data read by each device in a memory and the read of the stored data for each rectangular area to obtain a high memory efficiency, an image processing apparatus includes an input section which executes input processing of image data read by an image reading device in accordance with the data output format of the device, an output data control section which distributes the image data that has undergone the input processing by the input section in accordance with the output format of the image reading device, an address generation section which generates address information corresponding to the output format to store the distributed image data in a memory, and a memory control section which DMA-transfers the distributed image data to the memory and stores the image data on the basis of the generated address information.Type: ApplicationFiled: December 19, 2003Publication date: July 8, 2004Applicant: CANON KABUSHIKI KAISHAInventors: Katsutoshi Ushida, Yuichi Naoi, Yoshiaki Katahira, Koichi Morishita
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Publication number: 20040130553Abstract: To provide an image processing technique compatible with both a CCD and a CIS, which controls storage of image data read by each device in a memory and the read of the stored data for each rectangular area to obtain a high memory efficiency, an image processing apparatus includes a memory area control section which sets, for image data bitmapped on a first memory, a rectangular area divided in a main scanning direction and sub-scanning direction, an address generation section which generates address information to read out image data corresponding to the rectangular area in correspondence with the set rectangular area, a memory control section which reads out the image data corresponding to the rectangular area and DMA-transfers the image data to a second memory in accordance with the generated address information, and an image processing section which executes image processing for each rectangular area of the DMA-transferred data by using the second memory.Type: ApplicationFiled: December 19, 2003Publication date: July 8, 2004Applicant: Canon Kabushiki KaishaInventors: Katsutoshi Ushida, Yuichi Naoi, Yoshiaki Katahira, Yasuyuki Nakamura, Koichi Morishita, Makoto Fukuo
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Patent number: 5150421Abstract: Disclosed is an automated image gray level transformation system applied to a medical image processing work station for the purpose of dispensing with the prior art manual complex processing thereby improving the accuracy of diagnosis. The system carries out, in addition to its fundamental step of equalizing a histogram of image data of an input image, the steps of suppressing an adverse effect of a background region of the image so as to obtaining an intensity transformation function, constraining the intensity transformation function and modifying a bias value used for the function constraining.Type: GrantFiled: January 9, 1991Date of Patent: September 22, 1992Assignees: Hitachi, Ltd., Hitachi Medical CorporationInventors: Koichi Morishita, Tetsuo Yokoyama, Kazuhiro Sato
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Patent number: 4899393Abstract: In order to extract correctly an intended region by correcting the distortion of two images due to different time points of observation, an emphasis factor which depends on the standard deviation of the image gray value within the intended region is evaluated, and the intended region for registration is selected after adaptive filtering with characteristics determined by the emphasis factor.Type: GrantFiled: February 10, 1987Date of Patent: February 6, 1990Assignees: Hitachi, Ltd., Hitachi Medical CorporationInventors: Koichi Morishita, Tetsuo Yokoyama, Kazuhiro Sato
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Patent number: 4794531Abstract: In an unsharp masking processing for sharpening images such as radiographic images, an emphasizing coefficient of an image and parameters for real-time change of picture quality are set interactively. The entire image is divided into a plurality of regional images and filtering optimized for each pixel image is effected using a standard deviation computed for each regional image and a density difference between pixel images.Type: GrantFiled: April 22, 1987Date of Patent: December 27, 1988Assignees: Hitachi, Ltd, Hitachi Medical CorporationInventors: Koichi Morishita, Shimbu Yamagata, Tetsuo Okabe, Tetsuo Yokoyama, Kazuhiko Hamatani
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Patent number: 4644582Abstract: Two images to be registered are divided into a plurality of image portions. A standard point for the registration is extracted for each of the image portions divided. Coordinate transformations between two images for the registration are conducted for each image portion by using the standard point extracted. The coordinate values transformed between the image portions are smoothed in the case that they discretely change so that they may be smoothly connected.Type: GrantFiled: January 24, 1984Date of Patent: February 17, 1987Assignee: Hitachi, Ltd.Inventors: Koichi Morishita, Shinji Omori, Shimbu Yamagata, Tetsuo Yokoyama, Koichi Sano, Akira Ogushi
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Patent number: 4607222Abstract: A step of changing the frequency of a rotational field for nuclear magnetic resonance measurement of a medical nuclear magnetic resonance imaging apparatus is set to be smaller in a region of interest in a cross-section of an object to be examined than that in regions of less interest. In the less interesting regions of less interest, the spatial sampling interval is made large and an interpolating calculation is performed for the obtained projection data to provide data at the same spatial interval. The image reconstruction can be performed using an ordinary image reconstruction algorithm.Type: GrantFiled: February 10, 1984Date of Patent: August 19, 1986Assignees: Hitachi, Ltd., Hitachi Medical CorporationInventors: Tetsuo Yokoyama, Koichi Morishita, Koichi Sano, Shimbu Yamagata, Akira Ogushi