Patents by Inventor Tomoyuki Oku
Tomoyuki Oku 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: 20230160593Abstract: An object of the invention is to control an environment such that both external constraints and human comfort are unconsciously and easily achieved. A behavioral change promoting device according to the invention is connected to a control target device configured to act on an environment of a human, an operation unit configured to receive an operation performed on the control target device by the human, and a sensor configured to acquire a control target measurement value in the environment. The behavioral change promoting device includes: a change speed control unit configured to determine, based on the received operation, a change speed at which the control target measurement value is changed in a non-comfort direction of the human.Type: ApplicationFiled: November 25, 2022Publication date: May 25, 2023Applicant: Hitachi, Ltd.Inventors: Hiroyuki OOTA, Nobuyuki SUGII, Masaaki FUJIMORI, Tomoyuki OKU
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Patent number: 9925874Abstract: An in-vehicle information display device has a first display and a second display disposed in a vehicle interior, a display content determination unit configured to determine whether a first content displayed on the first display and a second content displayed on the second display are identical to each other, and a display content change unit. When the display content determination unit determines that the first and second contents are identical to each other, the display content change unit changes the first content displayed on the first display or the second content displayed on the second display to a third content associated beforehand with one of the first and second contents that have been determined to be identical.Type: GrantFiled: October 30, 2014Date of Patent: March 27, 2018Assignees: NISSAN MOTOR CO., LTD., DENSO CORPORATIONInventors: Tomoyuki Oku, Naoki Satou
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Publication number: 20160280068Abstract: An in-vehicle information display device has a first display and a second display disposed in a vehicle interior, a display content determination unit configured to determine whether a first content displayed on the first display and a second content displayed on the second display are identical to each other, and a display content change unit. When the display content determination unit determines that the first and second contents are identical to each other, the display content change unit changes the first content displayed on the first display or the second content displayed on the second display to a third content associated beforehand with one of the first and second contents that have been determined to be identical.Type: ApplicationFiled: October 30, 2014Publication date: September 29, 2016Applicants: Nissan Motor Co., Ltd., DENSO CORPORATIONInventors: Tomoyuki Oku, Naoki Satou
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Patent number: 9350669Abstract: To prevent the switching time influences power saving efficiency and packet loss prevention performance, it is provided a network apparatus for transferring packets, including a transfer part for transferring received packets to a given destination, and a determining part for obtaining traffic volume of the packets to be transferred. The determining part determines periodicity of changes to the traffic volume, predicts traffic volume after a predetermined period of time with use of the determined periodicity, and controls transfer performance of the transfer part based on a result of the traffic volume prediction.Type: GrantFiled: January 7, 2014Date of Patent: May 24, 2016Assignee: Hitachi, Ltd.Inventors: Masaki Yamada, Takashi Isobe, Tomoyuki Oku, Yuichi Ishikawa, Takeki Yazaki
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Patent number: 8848714Abstract: An edge router measures a traffic volume inputted into a network, and the measurement result is notified to a network management server. If the network management server judges that the notified traffic volume is “smaller” than a capacity of a second core router, it will direct a first core router to shift to a power saving mode. The first core router notifies the edge router of the shift to the power saving mode, and the edge router updates a routing table so that the packet to the first core router may be bypassed to the second core router. The first core router shifts to the power saving mode that does not perform packet transfer, and reduction in electric power is realized.Type: GrantFiled: December 17, 2009Date of Patent: September 30, 2014Assignee: Alaxala Networks CorporationInventors: Takeki Yazaki, Tomoyuki Oku, Mitsuru Nagasaka
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Publication number: 20140192647Abstract: To prevent the switching time influences power saving efficiency and packet loss prevention performance, it is provided a network apparatus for transferring packets, including a transfer part for transferring received packets to a given destination, and a determining part for obtaining traffic volume of the packets to be transferred. The determining part determines periodicity of changes to the traffic volume, predicts traffic volume after a predetermined period of time with use of the determined periodicity, and controls transfer performance of the transfer part based on a result of the traffic volume prediction.Type: ApplicationFiled: January 7, 2014Publication date: July 10, 2014Applicant: HITACHI, LTD.Inventors: Masaki YAMADA, Takashi ISOBE, Tomoyuki OKU, Yuichi ISHIKAWA, Takeki YAZAKI
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Patent number: 8094558Abstract: To control a bandwidth without the need for a large-capacity buffer. This invention provides a packet transfer apparatus connected to first device and second device, with a network therebetween, including: an input unit that receives a packet from the first device; a packet storage unit that stores the packet; a packet processing unit that stores the packet in the packet storage unit; a packet checking unit that checks whether the packet is related to data request; a packet analyzing unit that analyzes the amount of data requested by the data request; a transfer control unit that controls transfer of the packet on the basis of the analyzed amount of data; and an output unit that sends the received packet to the second device.Type: GrantFiled: December 27, 2004Date of Patent: January 10, 2012Assignee: Hitachi, Ltd.Inventors: Masayuki Takase, Minoru Hidaka, Takeki Yazaki, Tomoyuki Oku
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Publication number: 20100157830Abstract: An edge router measures a traffic volume inputted into a network, and the measurement result is notified to a network management server. If the network management server judges that the notified traffic volume is “smaller” than a capacity of a second core router, it will direct a first core router to shift to a power saving mode. The first core router notifies the edge router of the shift to the power saving mode, and the edge router updates a routing table so that the packet to the first core router may be bypassed to the second core router. The first core router shifts to the power saving mode that does not perform packet transfer, and reduction in electric power is realized.Type: ApplicationFiled: December 17, 2009Publication date: June 24, 2010Inventors: Takeki YAZAKI, Tomoyuki Oku, Mitsuru Nagasaka
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Patent number: 7664052Abstract: A master node transmits a probe packet for checking a condition of a network in a ring in both directions thereof to detect the occurrence of a fault on the ring. A slave node increments a hop count included in the received probe packet, transmits it to an adjacent node configuring the ring, and transmits a hop count report packet to the master node. The master node detects a fault on the ring based upon a fact that the master node does not receive the probe packet transmitted by itself. Further, the master node detects the occurrence of multiple faults and the recovery of at least one of the multiple faults based upon the sum of maximum values of hop counts in the hop count report packets received from both directions of the ring and transmits a packet for prompting the update of the database for packet transfer.Type: GrantFiled: February 7, 2007Date of Patent: February 16, 2010Assignee: Alaxala Networks CorporationInventors: Tomoyuki Oku, Shinichi Akahane
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Patent number: 7529251Abstract: A high quality network is provided that eliminates the sorting time for sorting through registering look-up conditions, such as source and destination MAC addresses, in a content addressable memory, by generating a routing or flow control look-up key, and then selectively activating some of the physical banks in the content addressable memory with the look-up key during look-up for the look-up conditions. The look-up key is generated by extracting a part or all of the data contained in a packet header.Type: GrantFiled: August 26, 2005Date of Patent: May 5, 2009Assignee: Hitachi, Ltd.Inventors: Tomoyuki Oku, Takeki Yazaki, Michitaka Okuno, Minoru Hidaka, Shinichi Akahane
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Publication number: 20070204068Abstract: A master node transmits a probe packet for checking a condition of a network in a ring in both directions thereof to detect the occurrence of a fault on the ring. A slave node increments a hop count included in the received probe packet, transmits it to an adjacent node configuring the ring, and transmits a hop count report packet to the master node. The master node detects a fault on the ring based upon a fact that the master node does not receive the probe packet transmitted by itself. Further, the master node detects the occurrence of multiple faults and the recovery of at least one of the multiple faults based upon the sum of maximum values of hop counts in the hop count report packets received from both directions of the ring and transmits a packet for prompting the update of the database for packet transfer.Type: ApplicationFiled: February 7, 2007Publication date: August 30, 2007Inventors: Tomoyuki Oku, Shinichi Akahane
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Publication number: 20060123136Abstract: A high quality network is provided by not generating a sorting time when registering look-up conditions in a content addressable memory, and the physical banks activated during look-up of the look-up conditions are limited.Type: ApplicationFiled: August 26, 2005Publication date: June 8, 2006Inventors: Tomoyuki Oku, Takeki Yazaki, Michitaka Okuno, Minoru Hidaka, Shinichi Akahane
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Publication number: 20060077915Abstract: To control a bandwidth without the need for a large-capacity buffer. This invention provides a packet transfer apparatus connected to first device and second device, with a network therebetween, including: an input unit that receives a packet from the first device; a packet storage unit that stores the packet; a packet processing unit that stores the packet in the packet storage unit; a packet checking unit that checks whether the packet is related to data request; a packet analyzing unit that analyzes the amount of data requested by the data request; a transfer control unit that controls transfer of the packet on the basis of the analyzed amount of data; and an output unit that sends the received packet to the second device.Type: ApplicationFiled: December 27, 2004Publication date: April 13, 2006Inventors: Masayuki Takase, Minoru Hidaka, Takeki Yazaki, Tomoyuki Oku