Patents by Inventor Riu HIRAI
Riu HIRAI 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).
-
Patent number: 12020486Abstract: An information processing device includes a DNN operation unit that executes a DNN operation by a neural network including plural layers and a weight storage unit that stores a weight used in the DNN operation, and the DNN operation unit specifies data having a value larger than a predetermined threshold as operation target data among data input to a predetermined layer of the neural network, acquires a weight corresponding to the operation target data from the weight storage unit, and executes an operation of the predetermined layer based on the operation target data and the weight acquired from the weight storage unit.Type: GrantFiled: December 10, 2019Date of Patent: June 25, 2024Assignee: Hitachi Astemo, Ltd.Inventors: Riu Hirai, Goichi Ono, Hiroaki Ito
-
Publication number: 20230401071Abstract: An information processing terminal includes a processor, a memory, a communication unit, a container reception module, a container execution module and a sensor. The container reception module receives a container image via the communication unit. The container execution module boots the container when the container image is received and executes the application contained in the container image. The container boots the application based on the recognition situation about the sensor is recognized. The application executes a predetermined processing for sensing data acquired from the sensor.Type: ApplicationFiled: October 20, 2021Publication date: December 14, 2023Applicant: Hitachi, Ltd.Inventors: Riu HIRAI, Keiki NAKAMURA, Tasuku SHIMADA
-
Publication number: 20230097594Abstract: An information processing device executes a DNN computation by a neural network including a plurality of layers. The information processing device executes a computation process corresponding to a given layer in the neural network, on a first area and on a second area different from the first area, the first and second areas being included in a feature map inputted to the neural network. The information processing device synthesizes a result of the computation process on the first area and a result of the computation process on the second area, and outputs the synthesized computation process results, as a result of the computation process on the feature map.Type: ApplicationFiled: March 12, 2021Publication date: March 30, 2023Applicant: Hitachi Astemo, Ltd.Inventors: Riu HIRAI, Hiroaki ITO, Hiroo UCHIDA, Goichi ONO, Tadashi KISHIMOTO
-
Patent number: 11427141Abstract: A computing system includes a server, and an on-vehicle device mounted on a vehicle. The server includes: a server storage part containing a learned model; a simplification part which generates a contraction information for determination of calculation precision by using the learned model and an object of inference; and a server communication part for transmitting the contraction information to the on-vehicle device. The on-vehicle device includes: a signal input part to which an output signal from a sensor mounted on the vehicle is inputted; an on-vehicle communication part for receiving the contraction information; an inference part for making an inference on the output signal and a reconfigurable logic circuit; and a reconfiguration part for configuring the inference part in the logic circuit based on the contraction information.Type: GrantFiled: December 5, 2018Date of Patent: August 30, 2022Assignee: HITACHI ASTEMO, LTD.Inventors: Riu Hirai, Goichi Ono, Taisuke Ueta
-
Patent number: 11388223Abstract: To improve learning accuracy, while avoiding transferring of a dataset from an edge terminal to a cloud server. A management device accessible to a target object to be managed has a processor executing a program, a storage device storing the program, and a communication interface communicable with the target object. The processor executes a reception process for receiving first environmental information representing a first environment of the target object, a first generation process for generating relevant information representing relevancy between the first environmental information and second environmental information representing a second environment of the target object, a second generation process for generating a first learned model for inference by the target object in the first environment based on the relevant information and a second learned model for inference by the target object in the second environment, and a transmission process for transmitting the first learned model to the target object.Type: GrantFiled: July 23, 2020Date of Patent: July 12, 2022Assignee: HITACHI, LTD.Inventors: Riu Hirai, Goichi Ono, Daisuke Ishii, Yuji Ogata
-
Patent number: 11343309Abstract: Provided is a server load prediction system that predicts a server load on a server connected to an apparatus installed in a production process including an apparatus requirement specification storage unit that stores a requirement specification of each apparatus for a server, a server specification storage unit that stores a server specification indicating a capability held by each server, an input information creation unit that receives an input of a calculation condition and creates an input parameter required to execute a simulation for calculating the server load, a server load calculation unit that calculates the server load caused by the apparatus used in a process designated under the calculation condition by executing the simulation, and an output unit that outputs the calculation result.Type: GrantFiled: February 26, 2021Date of Patent: May 24, 2022Assignee: HITACHI, LTD.Inventors: Eriko Takeda, Daisuke Ishii, Takumi Oishi, Kunihiko Toumura, Riu Hirai
-
Publication number: 20220122290Abstract: Provided are: an extraction unit extracting a plurality of sets of combinations of planes and coordinates corresponding to a plurality of objects from among images of the respective objects belonging to image information, based on the image information including the respective images of the plurality of objects which are images in a front direction of a worker; a plane selection unit selecting a designated set from among the plurality of sets of combinations of planes and coordinates extracted by the extraction unit according to a rule in which a priority for a plane corresponding to each object is defined; and an analysis unit calculating a gaze point coordinate indicating a gaze point of the worker based on visual line information indicating a visual line position of the worker and information on a combination of a plane and a coordinate belonging to the designated set selected by the plane selection unit.Type: ApplicationFiled: October 13, 2021Publication date: April 21, 2022Inventors: Taku Kumon, Riu Hirai, Keiki Nakamura
-
Publication number: 20220051030Abstract: An information processing device includes a DNN operation unit that executes a DNN operation by a neural network including plural layers and a weight storage unit that stores a weight used in the DNN operation, and the DNN operation unit specifies data having a value larger than a predetermined threshold as operation target data among data input to a predetermined layer of the neural network, acquires a weight corresponding to the operation target data from the weight storage unit, and executes an operation of the predetermined layer based on the operation target data and the weight acquired from the weight storage unit.Type: ApplicationFiled: December 10, 2019Publication date: February 17, 2022Inventors: Riu HIRAI, Goichi ONO, Hiroaki ITO
-
Publication number: 20220051163Abstract: A work support apparatus holds a value indicating information on at least one of an apparatus used for a work and a worker, a work change recognition determination algorithm, and a work support content corresponding to a determination result, applies a value indicating information on at least one of the apparatus and the worker to the work change recognition determination algorithm, determines whether or not the worker recognizes a work change indicating at least one of a change in a work process and a transition between a normal state and an abnormal state of a work, and outputs, to the output device, a work support content corresponding to the determination result.Type: ApplicationFiled: July 30, 2021Publication date: February 17, 2022Applicant: HITACHI, LTD.Inventors: Taku KUMON, Riu HIRAI
-
Publication number: 20220036190Abstract: Processing time of a neural network is shortened, and the number of operations of the neural network is reduced such that a plurality of calculators can be effectively used. A neural network reduction device (100) that reduces the number of operations of a neural network by an operation device (140) including a plurality of calculators by reducing the neural network, the neural network reduction device including: a calculator allocation unit (102) that sets the number of calculators allocated to calculation processing of the neural network; a number-of-operations setting unit (103) that sets the number of operations of a reduced neural network based on the number of allocated calculators; and a neural network reduction unit (104) that reduces the neural network such that the number of operations of the neural network by the operation device (140) is equal to the number of operations set by the number-of-operations setting unit (103).Type: ApplicationFiled: January 8, 2020Publication date: February 3, 2022Applicant: Hitachi Astemo, Ltd.Inventors: Hiroaki ITO, Goichi ONO, Riu HIRAI
-
Publication number: 20210306411Abstract: Provided is a server load prediction system that predicts a server load on a server connected to an apparatus installed in a production process including an apparatus requirement specification storage unit that stores a requirement specification of each apparatus for a server, a server specification storage unit that stores a server specification indicating a capability held by each server, an input information creation unit that receives an input of a calculation condition and creates an input parameter required to execute a simulation for calculating the server load, a server load calculation unit that calculates the server load caused by the apparatus used in a process designated under the calculation condition by executing the simulation, and an output unit that outputs the calculation result.Type: ApplicationFiled: February 26, 2021Publication date: September 30, 2021Applicant: Hitachi, Ltd.Inventors: Eriko Takeda, Daisuke Ishii, Takumi Oishi, Kunihiko Toumura, Riu Hirai
-
Publication number: 20210170962Abstract: A computing system includes a server, and an on-vehicle device mounted on a vehicle. The server includes: a server storage part containing a learned model; a simplification part which generates a contraction information for determination of calculation precision by using the learned model and an object of inference; and a server communication part for transmitting the contraction information to the on-vehicle device. The on-vehicle device includes: a signal input part to which an output signal from a sensor mounted on the vehicle is inputted; an on-vehicle communication part for receiving the contraction information; an inference part for making an inference on the output signal and a reconfigurable logic circuit; and a reconfiguration part for configuring the inference part in the logic circuit based on the contraction information.Type: ApplicationFiled: December 5, 2018Publication date: June 10, 2021Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.Inventors: Riu HIRAI, Goichi ONO, Taisuke UETA
-
Publication number: 20210037084Abstract: To improve learning accuracy, while avoiding transferring of a dataset from an edge terminal to a cloud server. A management device accessible to a target object to be managed has a processor executing a program, a storage device storing the program, and a communication interface communicable with the target object. The processor executes a reception process for receiving first environmental information representing a first environment of the target object, a first generation process for generating relevant information representing relevancy between the first environmental information and second environmental information representing a second environment of the target object, a second generation process for generating a first learned model for inference by the target object in the first environment based on the relevant information and a second learned model for inference by the target object in the second environment, and a transmission process for transmitting the first learned model to the target object.Type: ApplicationFiled: July 23, 2020Publication date: February 4, 2021Inventors: Riu HIRAI, Goichi ONO, Daisuke ISHII, Yuji OGATA
-
Patent number: 10014956Abstract: Provided is an optical receiver module which includes a conversion unit which converts an input optical signal to an electrical signal, an amplification unit which amplifies the electrical signal and outputs an amplified signal, a reception unit which directly or indirectly receives the amplified signal, and an offsetting unit which offsets the electrical signal such that a difference between a center of an intensity width of the electrical signal and a center of an intensity range of a signal capable of being received by the reception unit becomes small.Type: GrantFiled: December 1, 2016Date of Patent: July 3, 2018Assignee: Oclaro Jaoan, Inc.Inventor: Riu Hirai
-
Publication number: 20170180057Abstract: Provided is an optical receiver module which includes a conversion unit which converts an input optical signal to an electrical signal, an amplification unit which amplifies the electrical signal and outputs an amplified signal, a reception unit which directly or indirectly receives the amplified signal, and an offsetting unit which offsets the electrical signal such that a difference between a center of an intensity width of the electrical signal and a center of an intensity range of a signal capable of being received by the reception unit becomes small.Type: ApplicationFiled: December 1, 2016Publication date: June 22, 2017Inventor: Riu HIRAI
-
Patent number: 8520196Abstract: Bending of an optical fiber where a heat may be generated by a high output power can be detected without using a dedicated light source. An optical communication module that outputs a continuous wave light generated by at least one light source to an optical fiber transmission line, includes: (1) a loss measurement unit that measures a loss of an amplified spontaneous emission generated by allowing the continuous wave light output from the light source to create stimulated Raman scattering in the optical fiber transmission line; (2) a fiber abnormality analyzer that detects the abnormal state of the optical fiber transmission line on the basis of loss information on the ASE measured by the loss measurement unit; and (3) a light source controller that controls a supply state of the continuous wave light from the light source on the basis of the detection of the fiber abnormality analyzer.Type: GrantFiled: February 1, 2012Date of Patent: August 27, 2013Assignee: Hitachi, Ltd.Inventors: Riu Hirai, Nobuhiko Kikuchi, Tetsuya Uda, Shinya Sasaki
-
Publication number: 20120224168Abstract: Bending of an optical fiber where a heat may be generated by a high output power can be detected without using a dedicated light source. An optical communication module that outputs a continuous wave light generated by at least one light source to an optical fiber transmission line, includes: (1) a loss measurement unit that measures a loss of an amplified spontaneous emission generated by allowing the continuous wave light output from the light source to create stimulated Raman scattering in the optical fiber transmission line; (2) a fiber abnormality analyzer that detects the abnormal state of the optical fiber transmission line on the basis of loss information on the ASE measured by the loss measurement unit; and (3) a light source controller that controls a supply state of the continuous wave light from the light source on the basis of the detection of the fiber abnormality analyzer.Type: ApplicationFiled: February 1, 2012Publication date: September 6, 2012Applicant: HITACHI, LTD.Inventors: Riu HIRAI, Nobuhiko KIKUCHI, Tetsuya UDA, Shinya SASAKI