公开(公告)号：US11470002B2

公开(公告)日：2022-10-11

申请号：US17432303

申请日：2019-12-24

申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION

发明人： Masaru Takagi ,  Masahiro Yoshida ,  Koya Mori ,  Tomohiro Inoue ,  Hiroyuki Tanaka

IPC分类号： H04L45/7453 ,  H03M7/42 ,  H04L12/28 ,  H04L69/22

摘要： A technique for compressing and transmitting data without hampering real-time performance can be offered. In a data compression transmission system for collecting data generated by a plurality of devices at a central server via a network, an intermediate server is arranged between the devices and the central server. Each of the devices includes a packet cache processing unit for converting the generated data to a hash value based on a cache. The intermediate server includes a packet cache processing unit for decoding the hash value to original data based on the cache, a buffering unit for aggregating the data and outputting the data as a long packet, and a compression encoding unit for compressing the data and generating encoded data.

公开(公告)号：US20220263899A1

公开(公告)日：2022-08-18

申请号：US17629837

申请日：2019-07-29

申请人： Nippon Telegraph and Telephone Corporation

发明人： Kazuya Matsuo ,  Masaru Takagi ,  Ryota Nakada ,  Koya Mori ,  Hiroyuki Tanaka

IPC分类号： H04L67/12 ,  H04L67/2869 ,  H04L47/10

摘要： Provided is a relay server capable of reducing network traffic when collecting large amounts of sensor data from a large number of sensor terminals. A relay server that collects sensor data from a plurality of sensor terminals and uploads the sensor data to a central server via a network includes a data collection unit that collects the sensor data from the plurality of sensor terminals, a relay data creation unit that calculates a presence of spatial overlaps between the collected sensor data, removes overlaps between the sensor data, and creates relay data integrating the sensor data, and an upload unit that uploads the relay data to the central server.

公开(公告)号：US11917008B2

公开(公告)日：2024-02-27

申请号：US17629837

申请日：2019-07-29

申请人： Nippon Telegraph and Telephone Corporation

发明人： Kazuya Matsuo ,  Masaru Takagi ,  Ryota Nakada ,  Koya Mori ,  Hiroyuki Tanaka

IPC分类号： G06F15/16 ,  H04L67/12 ,  H04L67/2869 ,  H04L47/10

CPC分类号： H04L67/12 ,  H04L47/10 ,  H04L67/2869

摘要： Provided is a relay server capable of reducing network traffic when collecting large amounts of sensor data from a large number of sensor terminals. A relay server that collects sensor data from a plurality of sensor terminals and uploads the sensor data to a central server via a network includes a data collection unit that collects the sensor data from the plurality of sensor terminals, a relay data creation unit that calculates a presence of spatial overlaps between the collected sensor data, removes overlaps between the sensor data, and creates relay data integrating the sensor data, and an upload unit that uploads the relay data to the central server.

公开(公告)号：US11477124B2

公开(公告)日：2022-10-18

申请号：US17252195

申请日：2019-06-07

申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION

发明人： Masaru Takagi ,  Masahiro Yoshida ,  Kazuya Matsuo ,  Jun Shioda ,  Koya Mori

IPC分类号： H04L47/2425 ,  H04L43/0817 ,  H04L43/0876 ,  H04L43/106 ,  H04L47/28

摘要： The present invention offers a network management technique that can realize effective acquisition of various data transmitted from terminals, while reducing the network congestion. In a network management system including a plurality of terminals that can transmit data, a plurality of destination devices that perform respective predetermined processes based on the data, a relay device arranged between them, and a management device communicable with the terminals, the destination devices, and the relay device, the management device receives a request regarding required data from the destination devices; and, in response to the request, instructs to integrate data items that are to be relayed to individual destination devices. Upon receipt of the instruction, the relay device identifies and integrates data items that are to be relayed to the individual destination devices from among data items transmitted from the terminals, and transmits the integrated data to corresponding ones of the destination devices, based on the instruction.

公开(公告)号：US20220382582A1

公开(公告)日：2022-12-01

申请号：US17776082

申请日：2019-11-18

申请人： Nippon Telegraph and Telephone Corporation

发明人： Kazuya Matsuo ,  Masaru Takagi ,  Ryota Nakada ,  Koya Mori

IPC分类号： G06F9/48

摘要： A data processing system of the present embodiment is a data processing system that performs stream processing on received data and performs batch processing on the data after storage, and includes: a fast response processing apparatus 11 that performs processing of a part of the stream processing on the received data; a fast response processing result providing apparatus 12 that stores a processing result of the fast response processing apparatus 11 and reply to a query; a real-time processing apparatus 21 that performs remaining processing of the stream processing on the received data and the processing result of the fast response processing apparatus 11; a real-time processing result providing apparatus 22 that stores a processing result of the real-time processing apparatus 21 and reply to a query; a storage 31 that stores the received data; a batch processing apparatus 32 that performs the batch processing on the received data stored in the storage 31 at a predetermined timing; and a batch processing result providing apparatus 33 that stores a processing result of the batch processing apparatus 32 and reply to a query.

公开(公告)号：US11818361B2

公开(公告)日：2023-11-14

申请号：US17438224

申请日：2019-12-17

申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION

发明人： Masaru Takagi ,  Kazuya Matsuo ,  Lidwina Ayu Andarini ,  Jun Shioda ,  Ryota Nakada ,  Koya Mori ,  Tomohiro Inoue ,  Masahiro Yoshida

IPC分类号： H04N19/159 ,  H04N19/186

CPC分类号： H04N19/159 ,  H04N19/186

摘要： The object of the present invention is to provide a technique capable of effectively compressing point cloud data output from the ranging sensor. A data compression apparatus of the present invention includes a data acquisition unit (121) which acquires point cloud data including a plurality of sets each including a direction and a distance from a ranging sensor (11), a data conversion unit (122) which converts directions and distances in the sets into color signals, an image generation unit (123) which generates a bitmap Image by mapping the color signals into a two-dimensional data structure in accordance with the directions, and an image compression unit (124) which applies a predetermined image compression technique to the bitmap image.