Patents by Inventor Ken Nakamura
Ken Nakamura 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: 20250056105Abstract: The present disclosure relates to a vehicular camera. A first layer of a planar member includes a fifth surface opposite to a third surface in the second region. The fifth surface of the first layer of the planar member is fixed to a first flange surface of a flange portion of a lens unit, and is fixed to an end portion of a second tubular portion of a housing. A second-layer end surface of a second layer of the planar member has at least one second-layer protrusion protruding toward an inner surface of the second tubular portion of the housing and abutting on the inner surface of the second tubular portion of the housing.Type: ApplicationFiled: August 6, 2024Publication date: February 13, 2025Inventors: Ken NAKAMURA, Shingo KAMEYAMA, Kazuhiro ABE
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Patent number: 12225202Abstract: A coding method is a coding method executed by a coding apparatus. The coding method includes partitioning a first block having a predetermined size in an original image into a group of second blocks each being a block serving as a unit for coding, by quad tree, ternary tree, or binary tree, and predicting movement for each of the second blocks. The partitioning includes first sub-partitioning and second sub-partitioning, the first sub-partitioning includes partitioning the first block into blocks each having a size selected from sizes determined according to the quad tree, the ternary tree, or the binary tree, and the second sub-partitioning includes further partitioning the blocks each having the selected size to generate the second blocks.Type: GrantFiled: February 25, 2020Date of Patent: February 11, 2025Assignee: Nippon Telegraph and Telephone CorporationInventors: Yuya Omori, Ken Nakamura, Daisuke Kobayashi, Hiroe Iwasaki
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Publication number: 20250039526Abstract: A vehicular camera includes a lens unit including a first cylindrical portion, lens disposed inside the first cylindrical portion, and a flange portion disposed outside the first cylindrical portion to extend outward with respect to an optical axis of the lens, a circuit board, an image capturing element disposed on the optical axis of the lens, a housing including a second tubular portion, and accommodating the circuit board and the image capturing element inside the second tubular portion, and a ring member welded to the flange portion of the lens unit and the second tubular portion of the housing. The welding rib includes a first portion and a second portion, and a first height at which the first portion protrudes from the flange portion along an optical axis direction is different from a second height at which the second portion.Type: ApplicationFiled: July 25, 2024Publication date: January 30, 2025Inventors: Ken NAKAMURA, Koyo USAMI, Masayuki YOSHIE
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Publication number: 20250036715Abstract: There is provided a data processing device 10 that performs a convolution operation of two pieces of input data of 2M×N bits (N is a positive integer and M is a natural number) width with a minimum accuracy of the convolution operation being N bits, and performs processing corresponding to a plurality of the consecutive M, the data processing device 10 including: a product-sum operation unit 101 that performs a product-sum operation according to the value of M; a shifter 102 that performs shift processing on a result of a product-sum operation of the product-sum operation unit 101 in a case where the value of M is not 0; an addition unit 103 that performs addition processing on each output of the shifter 102 or the product-sum operation unit 101 according to the value of M; a selector 105 that selects an output from the addition unit 103 according to the value of M; a cumulative addition unit 106 that cumulatively adds the outputs from the selector 105; and a cumulative addition memory 107 that stores outputsType: ApplicationFiled: December 3, 2021Publication date: January 30, 2025Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Saki HATTA, Hiroyuki UZAWA, Shuhei YOSHIDA, Yuko IINUMA, Yuya OMORI, Daisuke KOBAYASHI, Ken NAKAMURA
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Publication number: 20240370694Abstract: An object detection device subjects fixed-length data having a decimal point position set therein to an arithmetic processing corresponding to respective layers in a plurality of layers configuring a multilayer neural network to which an input image is input, the arithmetic processing being performed in accordance with a processing algorithm for the multilayer neural network to which an input image is input. In the arithmetic processing, the object detection device counts the upper limit number of saturations, which is a number of times that upper limit value of a value range determined by the decimal point position is exceeded, and the lower limit number of saturations, which is a number of times that the lower limit value of the value range is not reached.Type: ApplicationFiled: May 26, 2021Publication date: November 7, 2024Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Saki HATTA, Hiroyuki UZAWA, Shuhei YOSHIDA, Daisuke KOBAYASHI, Yuya OMORI, Ken NAKAMURA, Koyo NITTA
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Publication number: 20240305872Abstract: A vehicular camera includes a cap having a barrel portion disposed to an outer circumference of a lens barrel and a second edge portion. At least a part of the second edge portion overlaps the circumference of the first lens and overlaps the first edge portion. Each of the plurality of protrusions is oriented from the barrel portion of the cap toward the optical axis, and protrudes along the first surface of the first lens. A first protrusion and a second protrusion are disposed adjacent to each other. A part of the first protrusion overlaps the first edge portion, and a part of the second protrusion overlaps the first edge portion. A first top portion and a second top portion are closer to the optical axis than the first edge portion, and the first surface of the first lens is exposed between the first and second top portions.Type: ApplicationFiled: March 4, 2024Publication date: September 12, 2024Inventors: Ken NAKAMURA, Kazuhiro ABE, Yoshiaki SAKUMA
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Publication number: 20240296648Abstract: An object detecting device includes: an overall processing unit configured to perform object detection processing on an input image; an allocation processing unit configured to determine a segmented image for each frame which is subject to object detection among the plurality of segmented images in advance in a cycle of N frames, and reserve the determined segmented image; a selection processing unit configured to select and output, for each frame, some of the segmented images that are subject to object detection among the plurality of segmented images based on a reservation result from the allocation processing unit; a division processing unit configured to perform object detection processing on each of the segmented images output from the selection processing unit; and a synthesizing processing unit configured to synthesize an object detection result from the overall processing unit and an object detection result from the division processing unit.Type: ApplicationFiled: June 7, 2021Publication date: September 5, 2024Inventors: Hiroyuki Uzawa, Ken Nakamura, Saki Hatta, Shuhei Yoshida, Daisuke Kobayashi, Yuya Omori, Koyo Nitta
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Publication number: 20240289593Abstract: A first aspect of the present disclosure is a convolutional neural network inference processing device that performs processing in a convolutional neural network including a plurality of convolution layers and a residual layer that adds intermediate data related to the plurality of convolution layers as an addition target to a processing result by the plurality of convolution layers for each tile that is data obtained by dividing input data into a predetermined size, the convolutional neural network inference processing device including an inconsistency data storage unit that stores inconsistency data that is data at a portion where there is inconsistency between the processing result and the intermediate data, a past layer data storage unit that stores past layer data that is an addition target in a residual layer generated using inconsistency data related to the tile for which processing has been performed in a past and the intermediate data, and a processing unit that performs processing by the plurality oType: ApplicationFiled: June 25, 2021Publication date: August 29, 2024Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Shuhei YOSHIDA, Hiroyuki UZAWA, Daisuke KOBAYASHI, Ken NAKAMURA, Saki HATTA, Yuya OMORI
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Publication number: 20240292077Abstract: A vehicular camera with an attachment jig includes a vehicular camera, and an attachment jig for attaching the vehicular camera to a vehicle body. The attachment jig is provided with a first screw hole through which a screw is able to pass, and the vehicular camera is provided with a second screw hole into which the screw is able to be screwed. The screw is configured to pass through the first screw hole and to be screwed into the second screw hole, and a thermosetting resin is present in a region between the first screw hole and the screw so as to be in contact with both the first screw hole and the screw.Type: ApplicationFiled: February 21, 2024Publication date: August 29, 2024Inventors: Ken NAKAMURA, Ryou FUKASAWA
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Publication number: 20240273874Abstract: When an output feature map to be an output of convolution processing is output, the output feature map is output to a storage unit for each of divided small regions. When each small region is output to the storage unit, in a case where a feature included in the small region is the same as a predetermined feature or a feature of a small region output in the past, the predetermined feature or the feature of a small region output in the past is compressed and output to the storage unit.Type: ApplicationFiled: December 8, 2021Publication date: August 15, 2024Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Ken NAKAMURA, Yuya OMORI, Daisuke KOBAYASHI, Shuhei YOSHIDA, Saki HATTA, Hiroyuki UZAWA, Koyo NITTA
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Publication number: 20240272540Abstract: A vehicular camera includes a circuit board accommodated in a housing and a metal shield. The circuit board includes a first component disposed on a second surface and having a first height and a second component disposed on the second surface and having a second height smaller than the first height. The first component is disposed in a position opposite to a second bottom surface portion of a recessed portion of a first bottom surface portion of the shield, and the second component is disposed in a position opposite to a portion other than the recessed portion of the first bottom surface portion of the shield.Type: ApplicationFiled: February 6, 2024Publication date: August 15, 2024Inventors: Ken NAKAMURA, Koyo USAMI, Kazuhiro ABE, Masayuki YOSHIE
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Publication number: 20240276083Abstract: A vehicular camera according to one embodiment includes a lens unit, a board, a housing, a ring member, a conductive first shield part, and a conductive second shield part. The lens unit includes a lens barrel in which a lens is arranged. The board is disposed with a sensor that converts light received through the lens into an image signal. The housing accommodates the board. The ring member includes a first opening into which the lens barrel is fitted, and connects the lens unit and the housing. The first shield part is provided to accommodate the board in the housing. The second shield part is arranged between the ring member and the board, includes a second opening having a diameter corresponding to that of the lens barrel, and is electrically connected to the first shield part. The board and the second shield part are electrically connected.Type: ApplicationFiled: April 11, 2024Publication date: August 15, 2024Inventors: Ken NAKAMURA, Kazufumi TAKESHITA, Takeshi HARADA, Yoshiki USUI
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Publication number: 20240246488Abstract: A vehicular camera includes: an imaging sensor including a first pixel region having X1 pixels arranged in a first direction and Y1 pixels arranged in a second direction intersecting the first direction; an optical system including at least one lens and having an optical axis intersecting the first pixel region; and a memory configured to store a position of a second pixel region inside the first pixel region and having X2 pixels arranged in the first direction and Y2 pixels arranged in the second direction, the X2 being smaller than the X1, the Y2 being smaller than the Y1. The vehicular camera is configured to: read the position of the second pixel region from the memory in response to start-up of the imaging sensor; and output an output image corresponding to the second pixel region while outputting the position of the second pixel region.Type: ApplicationFiled: January 12, 2024Publication date: July 25, 2024Inventors: Ken NAKAMURA, Yuichiro AIHARA, Koyo USAMI, Masayoshi MICHIGUCHI
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Patent number: 12047627Abstract: A coded data generation method of generating coded data of a plurality of bit rates in which an image is encoded includes the steps of: acquiring an evaluated value at distribution destinations of the generated coded data when the coded data is reproduced; and changing the bit rate of the coded data to be generated based on a distribution of the acquired evaluated value in all channels.Type: GrantFiled: December 16, 2019Date of Patent: July 23, 2024Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Daisuke Kobayashi, Ken Nakamura, Kazuhisa Yamagishi, Taichi Kawano
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Patent number: 12041232Abstract: A coding method encodes an image by dividing the image into blocks, and comprises: dividing a coding target image into a plurality of coding unit blocks; determining whether or not to encode by dividing the coding unit block into a plurality of sub-coding unit blocks, on a basis of an edge direction and an edge strength of an edge obtained for each pixel in the coding unit block; and encoding, in a case of determining to divide the coding unit block into a plurality of sub-coding unit blocks in the determining step, a first sub-coding unit block by referencing a second sub-coding unit block inside the same coding unit block as the first sub-coding unit block.Type: GrantFiled: December 9, 2019Date of Patent: July 16, 2024Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Yuya Omori, Ken Nakamura, Daisuke Kobayashi, Hiroe Iwasaki
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Publication number: 20240232593Abstract: In a data processing device, a fixed-point position control unit determines, as first control. The fixed-point position control unit causes a detection calculation unit to perform calculation processing on processing target data at a processing point in time. The saturation rate control unit instructs, as second control to be repeated by the fixed-point position control unit, the fixed-point position control unit to move at least the fixed-point position as control to increase a lower limit saturation rate proportional to a magnitude of a counted lower limit counter value with respect to a result of the first control. The fixed-point position control unit performs, as the second control, a predetermined determination on the basis of the instruction from the saturation rate control unit and the metadata, determines the fixed-point position moved for each layer, and causes calculation processing to be performed.Type: ApplicationFiled: December 28, 2020Publication date: July 11, 2024Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Saki HATTA, Hiroyuki UZAWA, Shuhei YOSHIDA, Daisuke KOBAYASHI, Yuya OMORI, Ken NAKAMURA, Koyo NITTA
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Publication number: 20240187718Abstract: An in-vehicle camera includes a lens barrel including at least one lens and being tubular, an imaging element disposed on the circuit board and on an optical axis of the at least one lens, a ring member made of a first resin having a first light transmittance, and disposed to protrude in a direction away from the optical axis over an entire periphery of the lens barrel, and a housing portion a part of which has a tubular shape, and one end surface of the tubular shape is made of a second resin having a second light transmittance smaller than the first light transmittance. The in-vehicle camera further includes a third resin disposed on an inner side of the tubular shape between the ring member and the imaging element in a direction of the optical axis, and having a third light transmittance smaller than the first light transmittance.Type: ApplicationFiled: December 4, 2023Publication date: June 6, 2024Inventors: Ken NAKAMURA, Kazuhiro ABE, Masayuki YOSHIE
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Publication number: 20240171834Abstract: A vehicular camera includes a first shield made of metal and disposed to surround a circuit board. The first shield includes a first bottom surface portion, a second bottom surface portion disposed to be separated from the first bottom surface portion, and a connection portion connecting an entire periphery of the first bottom surface portion and an entire periphery of the second bottom surface portion. At least a first side surface portion, a second side surface portion, a third side surface portion, and a fourth side surface portion of the first shield are formed by a contiguously curved surface, and at least the first side surface portion, the second side surface portion, the third side surface portion, the fourth side surface portion, the first bottom surface portion, the connection portion, and the second bottom surface portion are formed by a contiguously curved surface.Type: ApplicationFiled: January 29, 2024Publication date: May 23, 2024Inventors: Yoshiki USUI, Takeshi HARADA, Masayuki YOSHIE, Kouichi KAWAMOTO, Ken NAKAMURA, Tadafumi KUROGI, Kazufumi TAKESHITA, Kenichi KUWAYAMA
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Publication number: 20240135155Abstract: In a data processing device, a fixed-point position control unit determines, as first control. The fixed-point position control unit causes a detection calculation unit to perform calculation processing on processing target data at a processing point in time. The saturation rate control unit instructs, as second control to be repeated by the fixed-point position control unit, the fixed-point position control unit to move at least the fixed-point position as control to increase a lower limit saturation rate proportional to a magnitude of a counted lower limit counter value with respect to a result of the first control. The fixed-point position control unit performs, as the second control, a predetermined determination on the basis of the instruction from the saturation rate control unit and the metadata, determines the fixed-point position moved for each layer, and causes calculation processing to be performed.Type: ApplicationFiled: December 28, 2020Publication date: April 25, 2024Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Saki HATTA, Hiroyuki UZAWA, Shuhei YOSHIDA, Daisuke KOBAYASHI, Yuya OMORI, Ken NAKAMURA, Koyo NITTA
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Publication number: 20240119605Abstract: A calculation unit (22) sets each frame, of a moving image including a plurality of frames, as a target frame, calculates a motion vector with reference to a reference frame over an entirety of the target frames, and calculates an index indicating a magnitude of change between a key frame and the target frame, which is represented by using the motion vector, a judgement unit (25) judges whether or not the calculated index is equal to or greater than a predetermined threshold value, a first detection unit (27) detects a region indicating an object from the target frame by using an object detection model in a case in which the index is equal to greater than the threshold value, a second detection unit (28) detects a region on the target frame, which is obtained by correcting a position of a region detected in the reference frame by using the motion vector in a case in which the index is less than the threshold value, and an output unit (30) outputs information of the region detected by the first detection unitType: ApplicationFiled: February 9, 2021Publication date: April 11, 2024Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Ken NAKAMURA, Hiroyuki UZAWA, Daisuke KOBAYASHI, Saki HATTA, Yuya OMORI, Shuhei YOSHIDA