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公开(公告)号：US20240119605A1
公开(公告)日：2024-04-11
申请号：US18275786
申请日：2021-02-09
Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Inventor： Ken NAKAMURA , Hiroyuki UZAWA , Daisuke KOBAYASHI , Saki HATTA , Yuya OMORI , Shuhei YOSHIDA
CPC classification number: G06T7/215 , G06T7/248 , G06V10/82 , G06V20/46 , G06T2207/10016 , G06T2207/20084
Abstract: 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 unit (27) and information of the region detected by the second detection unit (28).
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公开(公告)号：US20220278765A1
公开(公告)日：2022-09-01
申请号：US17622025
申请日：2019-06-25
Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Inventor： Rintaro HARADA , Hiroyuki UZAWA , Hirotaka NAKAMURA , Jun TERADA
Abstract: A transfer device includes: a frame information acquisition unit configured to monitor downstream frames between host devices and OLTs and calculate a statistical value of the downstream frames per a fixed cycle; a frame storage unit configured to store the downstream frames in a plurality of queues; a frame sorting unit configured to input the downstream frames to the queues; and a distribution control unit configured to determine the number of frames to be sequentially input to the queues and increase the number of distributed frames of at least one of the host devices input to an OLT, the OLT having a smaller value of a total number of frames input from all the host devices than a maximum number of rounded frames obtained by dividing a value of a total number of frames input until the frames of all the host devices take turns around the plurality of queues by the number of OLTs. As a result, a delay requirement can be satisfied while a memory size of the queue and power consumption required for the frame sorting process are reduced.
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3.发明申请公开(公告)号：US20220210718A1
公开(公告)日：2022-06-30
申请号：US17601849
申请日：2020-03-26
Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Inventor： Naotaka SHIBATA , Hiroyuki UZAWA , Hirotaka UJIKAWA , Yoichi FUKADA , Jun TERADA
Abstract: A signal forwarding system includes: a plurality of signal forwarding devices forming a plurality of communication routes between a slave station and a master station; and a route control device that determines a communication route, wherein the route control device includes at least: a communication route calculation unit that calculates a communication route in response to a route switching request; and a forward destination setting instruction unit that outputs forward destination setting information based on the communication route, the signal forwarding devices include at least: a forward destination setting instruction acquisition unit that acquires the forward destination setting information; a forward destination set unit that changes a forward destination based on the forward destination setting information; and a forward unit that outputs input traffic based on the forward destination, and any of the route control device and the signal forwarding devices includes: a traffic monitor unit; a non-signal period estimation unit that estimates a non-signal period in which the traffic does not flow; and a switching timing control unit that controls a switching timing to perform route switching in the non-signal period.
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公开(公告)号：US20210176177A1
公开(公告)日：2021-06-10
申请号：US17257720
申请日：2019-07-19
Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Inventor： Takahiro KUBO , Yu NAKAYAMA , Hiroyuki UZAWA , Daisuke HISANO , Yoichi FUKADA
IPC: H04L12/815 , H04W28/02
Abstract: A data collection unit of an NW controller (6) collects, from an L2SW (5) constituting an L2NW (4), uplink observation data indicating traffic volume of a session request packet addressed to an application server 2 and downlink observation data indicating traffic volume of a session response packet transmitted from the application server 2, which are acquired by observing packets input to the L2SW (5). A control unit changes shaping rate of the packets addressed to the application server (2) through the L2SW (5) included in the L2NW (4) based on a ratio between the traffic volume indicated by the uplink observation data and the traffic volume indicated by the downlink observation data, or a ratio between an increment of the traffic volume acquired from the uplink observation data and an increment of the traffic volume acquired from the downlink observation data.
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公开(公告)号：US20250036715A1
公开(公告)日：2025-01-30
申请号：US18715083
申请日：2021-12-03
Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Inventor： Saki HATTA , Hiroyuki UZAWA , Shuhei YOSHIDA , Yuko IINUMA , Yuya OMORI , Daisuke KOBAYASHI , Ken NAKAMURA
IPC: G06F17/15
Abstract: 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 outputs from the cumulative addition unit 106 in a process of a convolution operation.
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Patent Agency Ranking
6.发明公开公开(公告)号：US20240289593A1
公开(公告)日：2024-08-29
申请号：US18572329
申请日：2021-06-25
Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Inventor： Shuhei YOSHIDA , Hiroyuki UZAWA , Daisuke KOBAYASHI , Ken NAKAMURA , Saki HATTA , Yuya OMORI
IPC: G06N3/0464
CPC classification number: G06N3/0464
Abstract: 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 of convolution layers and processing by the residual layer that adds the past layer data to the processing result.
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公开(公告)号：US20240232593A9
公开(公告)日：2024-07-11
申请号：US18269528
申请日：2020-12-28
Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Inventor： Saki HATTA , Hiroyuki UZAWA , Shuhei YOSHIDA , Daisuke KOBAYASHI , Yuya OMORI , Ken NAKAMURA , Koyo NITTA
IPC: G06N3/063
CPC classification number: G06N3/063
Abstract: 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.
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公开(公告)号：US20220217572A1
公开(公告)日：2022-07-07
申请号：US17429841
申请日：2020-02-04
Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Inventor： Naotaka SHIBATA , Hiroyuki UZAWA , Yoichi FUKADA , Jun TERADA
Abstract: There are included a control unit configured to, when detecting that no high priority traffic frame arrives for a frame interval threshold or longer in the period that allows high priority traffic frames to be transmitted, release the period that allows high priority traffic frames to be transmitted and allocate the released period to the period that allows low priority traffic frames to be transmitted, a frame arrival time information acquisition unit configured to obtain information of frame arrival times of high priority traffic frames, a frame interval calculation unit configured to calculate, in accordance with the information of frame arrival times obtained by the frame arrival time information acquisition unit, frame intervals between frames of the high priority traffic frames input in chronological order, a frame interval threshold calculation unit configured to calculate a new frame interval threshold in accordance with the frame intervals, and a frame interval threshold configuration unit configured to change the frame interval threshold to the new frame interval threshold.
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公开(公告)号：US20240370694A1
公开(公告)日：2024-11-07
申请号：US18561276
申请日：2021-05-26
Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Inventor： Saki HATTA , Hiroyuki UZAWA , Shuhei YOSHIDA , Daisuke KOBAYASHI , Yuya OMORI , Ken NAKAMURA , Koyo NITTA
IPC: G06N3/04
Abstract: 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. The object detection device counts the upper limit number of saturation layers, which is a number of layers in which the upper limit number of saturations is one or larger, and the lower limit number of saturation layers, which is a number of layers in which the lower limit number of saturations is one or larger. The object detection device changes at least one of the upper limit saturation threshold, which is the threshold of the upper limit number of saturations or the lower limit saturation threshold, which is the threshold of the lower limit number of saturations, when at least one of the upper limit saturation threshold or the lower limit saturation threshold is determined not to be optimal based on an amount of change in the upper limit number of saturation layers and an amount of change in the lower limit number of saturation layers. The object detection device sets the decimal point position for each layer in the plurality of layers, based on a result of the determination.
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公开(公告)号：US20240062506A1
公开(公告)日：2024-02-22
申请号：US18265881
申请日：2020-12-09
Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Inventor： Hiroyuki UZAWA , Saki HATTA , Shuhei YOSHIDA , Daisuke KOBAYASHI , Yuya OMORI , Ken NAKAMURA , Koyo NITTA
CPC classification number: G06V10/267 , G06T3/40 , G06V10/225 , G06V10/273 , G06V2201/10
Abstract: An object detection device 10 includes an entire processing unit 110 that obtains first metadata for the entire input image by scaling the input image and performing object detection processing, a divided image narrowing unit 120 that narrows down the input image into a predetermined number of selected divided images from a group of divided images obtained by dividing the input image, a division processing unit 130 that obtains second metadata by performing object detection processing for each of the selected divided images, and a synthesis processing unit 140 that removes the second metadata obtained by the division processing unit 130 that overlaps the first metadata obtained by the entire processing unit 110, and synthesizes the first metadata not removed and the first meta data obtained by the entire processing unit 110 to output the meta data.
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