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1. 发明授权

US09794149B2 User experienced quality estimation apparatus, terminal bottleneck determination apparatus, similar operation extraction apparatus, method and program 有权
公开(公告)号：US09794149B2
公开(公告)日：2017-10-17
申请号：US14389034
申请日：2013-03-29
申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION
发明人： Hiroshi Yamamoto , Sorami Nakamura , Hirotada Honda , Daisuke Ikegami
IPC分类号： G06F15/16 , H04L12/26 , G06F11/34 , H04L29/08 , H04L29/06
CPC分类号： H04L43/0852 , G06F11/3419 , G06F11/3476 , G06F17/40 , G06F2201/81 , H04L67/10 , H04L67/42
摘要： A user experienced quality estimation apparatus estimating a user experienced waiting time of an application in an user terminal, includes: a computer configured to: obtain, as estimation target logs, a duration time of each process of data obtaining, script execution and screen rendering performed in an estimation target period in the user terminal, and to store the estimation target logs in a received log storage unit; read out the estimation target logs from the received log storage unit, and output logs, excluding logs having data duration time shorter than a predetermined short time process threshold or longer than a predetermined long time process threshold; calculate, as multiplicity, the number of processes in a timeslot of a constant time length for the output logs; and extract a continuous region from data quantized by the quantization unit.

2. 发明申请

US20150074177A1 USER EXPERIENCED QUALITY ESTIMATION APPARATUS, TERMINAL BOTTLENECK DETERMINATION APPARATUS, SIMILAR OPERATION EXTRACTION APPARATUS, METHOD AND PROGRAM 有权
标题翻译：用户经验质量估算装置，终端瓶颈测定装置，类似操作提取装置，方法和程序
公开(公告)号：US20150074177A1
公开(公告)日：2015-03-12
申请号：US14389034
申请日：2013-03-29
申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION
发明人： Hiroshi Yamamoto , Sorami Nakamura , Hirotada Honda , Daisuke Ikegami
IPC分类号： H04L12/26 , H04L29/06 , H04L29/08
CPC分类号： H04L43/0852 , G06F11/3419 , G06F11/3476 , G06F17/40 , G06F2201/81 , H04L67/10 , H04L67/42
摘要： A user experienced quality estimation apparatus for estimating a user experienced waiting time of an application in an user terminal, includes: a data reception unit configured to obtain, as estimation target logs, a duration time of each process of data obtaining, script execution and screen rendering performed in an estimation target period in the user terminal, and to store the estimation target logs in a received log storage unit; a log exclusion unit configured to read out the estimation target logs from the received log storage unit, and output logs from which logs having data duration time shorter than a predetermined short time process threshold or longer than a predetermined long time process threshold are excluded; a quantization unit configured to calculate, as multiplicity, the number of processes in a timeslot of a constant time length for the logs output from the log exclusion unit; and a continuous region extraction unit configured to extract a continuous region from data quantized by the quantization unit.
摘要翻译：用户经验的质量估计装置，用于估计用户在用户终端中经历的应用程序的等待时间，包括：数据接收单元，被配置为获取每个进程的数据获取，脚本执行和屏幕的估计目标日志的持续时间在用户终端中在估计目标周期中进行渲染，并将估计目标日志存储在接收到的日志存储单元中; 日志排除单元，被配置为从接收的日志存储单元读出估计目标日志，并且输出日志，其中具有短于预定的短时间处理阈值或长于预定长时间处理阈值的数据持续时间的日志的日志被排除; 量化单元，被配置为计算从对数排除单元输出的日志的恒定时间长度的时隙中的处理次数作为多重性; 以及连续区域提取单元，被配置为从由量化单元量化的数据中提取连续区域。

3. 发明授权

US11362894B2 Wiring management system and wiring management method 有权
公开(公告)号：US11362894B2
公开(公告)日：2022-06-14
申请号：US17041570
申请日：2019-03-19
申请人： Nippon Telegraph and Telephone Corporation
发明人： Yoshihiko Uematsu , Hiroshi Yamamoto , Hiroki Kawahara , Katsuhiro Araya , Toshiyuki Oka
IPC分类号： H04L41/0873 , H04L41/12 , H04L101/622 , H04L67/51 , H04Q11/04 , H04L41/0853 , H04L12/28
摘要： When separate service apparatuses that provide various communication services to users are connected by a wiring with communication functional units interposed, if there is a wiring abnormality, the location of the abnormality is easily identified. When a wiring connection is completed between separated service apparatuses X and Y that provide various communication services to user terminals 31 and 32 with communication functional units A1 and B2 interposed, a wiring management system 10A includes a transmission network management apparatus 14A that identifies a wiring abnormality. The transmission network management apparatus 14A associates endpoint names of the service apparatuses X and Y and of the functional units A1 and B2 with opposite endpoint names on the opposite sides, defines opposite endpoint IDs of the endpoints of the functional units A1 and B2 as expected values, and saves the end points in association with the opposite endpoint IDs in a DB 14b. Upon completing the wiring connection between the service apparatuses X and Y, an opposite endpoint ID of each of the functional units A1 and B2 and the service apparatuses X and Y opposite to predetermined functional units A1 and B2 is received as a received value via a wiring, and if the received value does not match the expected value, it is determined that the wiring is abnormal.

4. 发明授权

US10491903B2 Delivery rate selection device, delivery rate selection method, and program 有权
公开(公告)号：US10491903B2
公开(公告)日：2019-11-26
申请号：US15747008
申请日：2016-06-09
申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION
发明人： Takuto Kimura , Masahiro Yokota , Ken Nishimatsu , Hiroshi Yamamoto , Kei Takeshita , Kazumichi Sato , Taichi Kawano
IPC分类号： H04N19/146 , H04N21/258 , H04N21/2662 , H04N21/24 , H04N19/115 , H04N19/164 , H04N21/654 , H04N21/2343 , H04N21/442
CPC分类号： H04N19/146 , H04N19/115 , H04N19/164 , H04N21/23439 , H04N21/2402 , H04N21/2407 , H04N21/258 , H04N21/25866 , H04N21/2662 , H04N21/44222 , H04N21/654
摘要： A delivery rate selection device, for selecting a delivery rate when delivering a video image from a video delivery server to a client in a video delivery service. When a delivery rate calculating unit receives from an inquiry source an inquiry of delivery rate for delivering a video image to a given user, a delivery rate calculating unit acquires presence or absence of a playback stall tolerance and presence or absence of an image quality deterioration tolerance of the given user from the user characteristic storage unit, selects an encoding rate from a plurality of encoding rates of the video image according to a combination of the presence or absence of a playback stall tolerance and the presence or absence of an image quality deterioration tolerance of the given user, and returns the selected encoding rate as the delivery rate to the inquiry source.

5. 发明授权

US10397625B2 Moving-image parameter selection device, moving-image parameter selection method, and program 有权
公开(公告)号：US10397625B2
公开(公告)日：2019-08-27
申请号：US15578392
申请日：2016-04-08
申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION
发明人： Taichi Kawano , Hiroshi Yamamoto , Kei Takeshita , Kazumichi Sato
IPC分类号： H04N21/258 , H04N21/442 , H04N21/266 , H04N21/2543 , H04N21/2662
摘要： A moving-image parameter selection device includes a storage unit configured, for each distribution of a video in a past, to associate a combination of values of moving-image parameters used for the distribution, with a KPI related to the distribution, to store the associated combination; and a selector configured, for each of the combinations, to calculate an average of the KPI, to execute a significance test for each of the averages of the KPIs with respect to one of the averages of the KPIs of the combinations, and based on results of the significance tests, to select a part of combinations among the combinations, and thereby, enables selection of moving-image parameters that contribute to increasing the profit of a video distribution service.

6. 发明授权

US11824762B2 Transmission path design apparatus, transmission network topology design method, and transmission path design program for designing a communication path topology optimized in view of reducing amount of equipment needed 有权
公开(公告)号：US11824762B2
公开(公告)日：2023-11-21
申请号：US17619982
申请日：2019-06-17
申请人： Nippon Telegraph and Telephone Corporation
发明人： Hiroshi Yamamoto , Toshiyuki Oka , Hideki Maeda
IPC分类号： H04L45/24 , H04L45/02 , H04L45/12
CPC分类号： H04L45/24 , H04L45/02 , H04L45/126
摘要： To easily design a communication path topology optimized in view of reducing the amount of equipment needed under the condition that availability against multiple failures in a network is maintained. A transmission path design apparatus (100) performs: a step (S14) of extracting, from the multiple base stations, a first group of base stations whose number of communication-path routes connected is large, based on transmission network model initial data (D0); a step (S16) of extracting a first group of communication paths connecting the base stations in the first group; a step (S16) of calculating a both-end path value (d_i,j) for each communication path in the first group; and steps (S18 to S24) of determining the communication path whose both-end path value satisfies a predetermined condition as a thinning-out target communication path, and generating output data Dy in which the thinning-out target communication path is reflected on the transmission network model initial data. The optimized output data (Dy) can be generated by extracting a deletable communication path in order from the model of the initial data (D0).

7. 发明申请

US20210014585A1 WIRING MANAGEMENT SYSTEM AND WIRING MANAGEMENT METHOD 有权
公开(公告)号：US20210014585A1
公开(公告)日：2021-01-14
申请号：US17041570
申请日：2019-03-19
申请人： Nippon Telegraph and Telephone Corporation
发明人： Yoshihiko Uematsu , Hiroshi Yamamoto , Hiroki Kawahara , Katsuhiro Araya , Toshiyuki Oka
IPC分类号： H04Q11/04 , H04L29/08 , H04L29/12 , H04L12/24
摘要： When separate service apparatuses that provide various communication services to users are connected by a wiring with communication functional units interposed, if there is a wiring abnormality, the location of the abnormality is easily identified. When a wiring connection is completed between separated service apparatuses X and Y that provide various communication services to user terminals 31 and 32 with communication functional units A1 and B2 interposed, a wiring management system 10A includes a transmission network management apparatus 14A that identifies a wiring abnormality. The transmission network management apparatus 14A associates endpoint names of the service apparatuses X and Y and of the functional units A1 and B2 with opposite endpoint names on the opposite sides, defines opposite endpoint IDs of the endpoints of the functional units A1 and B2 as expected values, and saves the end points in association with the opposite endpoint IDs in a DB 14b. Upon completing the wiring connection between the service apparatuses X and Y, an opposite endpoint ID of each of the functional units A1 and B2 and the service apparatuses X and Y opposite to predetermined functional units A1 and B2 is received as a received value via a wiring, and if the received value does not match the expected value, it is determined that the wiring is abnormal.

8. 发明授权

US10499266B2 Communication-speed-limited user extraction apparatus, throughput estimation apparatus, communication-speed-limited user extraction method, throughput estimation method, communication-speed-limited user extraction program, and throughput estimation program 有权
公开(公告)号：US10499266B2
公开(公告)日：2019-12-03
申请号：US15578067
申请日：2016-04-19
申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION
发明人： Kei Takeshita , Hiroshi Yamamoto , Kazumichi Sato , Taichi Kawano
IPC分类号： H04W24/08 , H04L12/26 , G06F17/18 , H04W8/18 , H04L12/911 , H04M11/00 , H04L12/24 , H04W72/04 , H04L12/813
CPC分类号： H04W24/08 , G06F17/18 , H04L43/0888 , H04L47/822 , H04M11/00 , H04W8/183 , H04L41/142 , H04L47/20 , H04W72/0413
摘要： A communication-speed-limited user extraction apparatus for extracting a user whose communication speed is limited based on communication histories includes a communication history storage unit configured to store the communication histories including throughput information on a user-by-user basis; and a communication-speed-limited user determination unit configured to extract a communication history with a same communication environment at a communication date and time within a predetermined period of time from the communication history storage unit and determine that a user with a different throughput distribution is the user whose communication speed is limited.

9. 发明授权

US10154266B2 Video quality estimation device, video quality estimation method, and video quality estimation program 有权
公开(公告)号：US10154266B2
公开(公告)日：2018-12-11
申请号：US15525846
申请日：2015-11-16
申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION
发明人： Taichi Kawano , Hiroshi Yamamoto , Kei Takeshita , Kazumichi Sato
IPC分类号： H04N19/149 , H04N19/154 , H04N19/124 , H04N19/196 , H04N17/00
摘要： A video quality estimation apparatus used for an encoded video, to estimate a video quality value being a value quantifying a video quality being quality of the video felt by a user when viewing and listening to the video. The apparatus includes a maximum value calculator to calculate a maximum value of the video quality value from a resolution of the video and a frame rate of the video, and a video quality calculator to calculate an estimated video quality value corresponding to an encoding bit rate having been input, based on a predetermined relationship between the encoding bit rate of the video and the video quality value. The predetermined relationship is a relationship in which the video quality value increases while the encoding bit rate increases, and the video quality value converges on the maximum value calculated by the maximum value calculator.

10. 发明申请

US20140241699A1 CONTENT PLAYBACK INFORMATION ESTIMATION APPARATUS AND METHOD AND PROGRAM 有权
标题翻译：内容回放信息估计装置及方法与程序
公开(公告)号：US20140241699A1
公开(公告)日：2014-08-28
申请号：US14351704
申请日：2012-11-01
申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION
发明人： Hirotada Honda , Hiroshi Yamamoto , Sorami Nakamura , Daisuke Ikegami
IPC分类号： H04N21/44 , H04N21/433
CPC分类号： H04N21/44004 , H04N21/2401 , H04N21/4333
摘要： A content playback information estimation apparatus, for estimating a state on playback of content, that is provided between a distribution server and a terminal in a system in which the distribution server distributes the content to the terminal via a network and the terminal plays the content, the content playback information estimation apparatus including: a unit configured to obtain packet data distributed from the distribution server to the terminal and to store the packet data in a storage unit; a unit configured to estimate a data amount in a buffer of the terminal based on obtained packet data; and a unit configured to estimate a state on playback at each time of the content in the terminal by comparing the estimated data amount with a predetermined threshold.
摘要翻译：一种内容再现信息估计装置，用于估计在分配服务器和终端之间的分发服务器和终端之间的内容的重放状态，其中分发服务器经由网络向终端分发内容并且终端播放内容，所述内容再现信息估计装置包括：单元，被配置为从所述分发服务器获得从所述终端分发的分组数据，并将分组数据存储在存储单元中; 被配置为基于获得的分组数据来估计终端的缓冲器中的数据量的单元; 以及单元，被配置为通过将所估计的数据量与预定阈值进行比较来估计终端中的每个内容的每次重放时的状态。

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