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公开(公告)号：US11526002B2
公开(公告)日：2022-12-13
申请号：US17215981
申请日：2021-03-29
发明人： Yuki Imatoh
摘要： An image distortion correction circuit performs a distortion correction process on an image signal on the basis of distortion correction data to generate a distortion-corrected image signal. The distortion correction data is for correcting coordinate positions of display data fragments corresponding to respective N coordinate positions in the display image to first to N-th distortion correction coordinate positions. The image distortion correction circuit determines a distortion correction coordinate position where abnormality occurs as an abnormal coordinate position among the first to N-th distortion correction coordinate positions on the basis of respective intervals between the adjacent first to N-th distortion correction coordinate positions indicated by the distortion correction data. The image distortion correction circuit corrects a part corresponding to the abnormal coordinate position in the distortion correction data on the basis of at least the two distortion correction coordinate positions excluding the abnormal coordinate position among the first to N-th distortion correction coordinate positions.
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公开(公告)号：US11587211B2
公开(公告)日：2023-02-21
申请号：US17217246
申请日：2021-03-30
发明人： Yuki Imatoh
摘要： An image distortion correction circuit according to the present invention comprises; a first distortion correction circuit that performs a mapping process on an input image signal to generate a distortion-corrected image signal; an inspection region defining circuit that defines an inspection image region in the one-frame image; an inspection region extraction circuit that extracts a part corresponding to the inspection image region from the distortion-corrected image signal and outputs the part of the distortion-corrected image signal as a first inspection image signal; a second distortion correction circuit that outputs a second inspection signal, the second inspection signal being generated by performing the mapping process on the part of the input image signal corresponding to the inspection image region; and a failure determination circuit that determines that a failure occurs and outputs a failure detection signal when the first inspection image signal and the second inspection image signal are mutually different.
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公开(公告)号：US20190028648A1
公开(公告)日：2019-01-24
申请号：US16041842
申请日：2018-07-23
发明人： Yuki Imatoh
IPC分类号： H04N5/232
摘要： An imaging device and a horizontal direction detection method capable of detecting a horizontal angle of a camera with high accuracy in a simple configuration are provided. The imaging device includes an imaging unit configured to obtain image data by photographing a predetermined subject, an image rotation unit configured to cause a display image based on the image data to be rotated on a display plane step by step, a count unit configured to count the number of pixels of a specific color included in the display image in a scanning line direction within the display plane and obtain a count value for each of rotated display images, and a determination unit configured to determine a horizontal direction of a photographing angle of the imaging unit based on the count value for each of the rotated display images.
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公开(公告)号：US11659270B2
公开(公告)日：2023-05-23
申请号：US17676779
申请日：2022-02-21
发明人： Yuki Imatoh
CPC分类号： H04N5/23293 , H04N5/2257 , H04N5/23229 , H04N5/2628 , H04N5/2254 , H04N5/23212 , H04N5/23216 , H04N5/23248 , H04N5/23296
摘要： An imaging device and a horizontal direction detection method capable of detecting a horizontal angle of a camera with high accuracy in a simple configuration are provided. The imaging device includes an imaging unit configured to obtain image data by photographing a predetermined subject, an image rotation unit configured to cause a display image based on the image data to be rotated on a display plane step by step, a count unit configured to count the number of pixels of a specific color included in the display image in a scanning line direction within the display plane and obtain a count value for each of rotated display images, and a determination unit configured to determine a horizontal direction of a photographing angle of the imaging unit based on the count value for each of the rotated display images.
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公开(公告)号：US10682956B2
公开(公告)日：2020-06-16
申请号：US16040936
申请日：2018-07-20
发明人： Yuki Imatoh
摘要： An image processing device includes a data capture unit configured to capture image data obtained around a vehicle, and an image processor configured to apply image processing to a display image based on the image data. The display image is constituted of an n×m number of pixels arranged in a matrix on a display screen having first to n-th horizontal lines (n is an integer of 3 or more) extending in a horizontal direction and first to m-th perpendicular lines (m is an integer of 3 or more) extending in a perpendicular direction. The display image includes a first image area constituted of the pixels in the first to (k−1)th horizontal lines (k is an integer satisfying 2≤k
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公开(公告)号：US20180285608A1
公开(公告)日：2018-10-04
申请号：US15939298
申请日：2018-03-29
发明人： Yuki Imatoh
CPC分类号： G06K7/10386 , G06K19/0723
摘要： A semiconductor device, a non-contact electronic device, and a period detection method are provided. The semiconductor device includes an edge detection unit that detects edges of one of rises and falls of a data signal received via radio waves, a counting unit that counts a number of N-divided clock signals having a frequency which is 1/N (N is an integer equal to or greater than 2) of a frequency of a reference clock signal having a predetermined frequency according to the data signal in a section of the adjacent edges, a fraction counting unit that counts fractions of the N-divided clock signals determined according to a phase difference between the edge and the N-divided clock signal, and a first addition unit that adds a value obtained by multiplying the counted number by N to the fractions, and outputs a resultant value as a period of the data signal.
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7.发明授权公开(公告)号：US11151059B2
公开(公告)日：2021-10-19
申请号：US16730523
申请日：2019-12-30
发明人： Yuki Imatoh
摘要： A semiconductor device of a peripheral device control system includes one or more management blocks that are provided in association with a device to be controlled. The management blocks each include a plurality of registers that store information pertaining to each operation of the device to be controlled, and a first generation unit that performs a predetermined aggregation process on values of the plurality of registers included in the management block to generate an aggregation value that is a value formed by aggregating the values of the plurality of registers.
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公开(公告)号：US20210092298A1
公开(公告)日：2021-03-25
申请号：US17115807
申请日：2020-12-09
发明人： Yuki Imatoh
摘要： An imaging device and a horizontal direction detection method capable of detecting a horizontal angle of a camera with high accuracy in a simple configuration are provided. The imaging device includes an imaging unit configured to obtain image data by photographing a predetermined subject, an image rotation unit configured to cause a display image based on the image data to be rotated on a display plane step by step, a count unit configured to count the number of pixels of a specific color included in the display image in a scanning line direction within the display plane and obtain a count value for each of rotated display images, and a determination unit configured to determine a horizontal direction of a photographing angle of the imaging unit based on the count value for each of the rotated display images.
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公开(公告)号：US10817684B2
公开(公告)日：2020-10-27
申请号：US15939298
申请日：2018-03-29
发明人： Yuki Imatoh
摘要： A semiconductor device, a non-contact electronic device, and a period detection method are provided. The semiconductor device includes an edge detection unit that detects edges of one of rises and falls of a data signal received via radio waves, a counting unit that counts a number of N-divided clock signals having a frequency which is 1/N (N is an integer equal to or greater than 2) of a frequency of a reference clock signal having a predetermined frequency according to the data signal in a section of the adjacent edges, a fraction counting unit that counts fractions of the N-divided clock signals determined according to a phase difference between the edge and the N-divided clock signal, and a first addition unit that adds a value obtained by multiplying the counted number by N to the fractions, and outputs a resultant value as a period of the data signal.
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公开(公告)号：US11429470B2
公开(公告)日：2022-08-30
申请号：US16928376
申请日：2020-07-14
发明人： Naohiro Fujii , Yuki Imatoh
IPC分类号： G06F11/00 , G06F11/07 , G06F11/273
摘要： A signal processing circuit has: n+1 (n being an integer of 2 or greater) operation circuits, each of which is configured to execute a prescribed operation process on inputted data; a signal supply unit that is configured to receive n pieces of input data extracted from one input signal and receive test data inputted separately from the n pieces of input data, sequentially select one operation circuit among the n+1 operation circuits and supply the test data to the one selected operation circuit, and supply the n pieces of input data to n operation circuits other than the one operation circuit among the n+1 operation circuits; and an anomaly determination unit that is configured to determine whether an anomaly has occurred in the one operation circuit on the basis of an operation result of an operation on the test data by the one operation circuit.
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