Patents by Inventor Nobuhiko Watanabe
Nobuhiko Watanabe 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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Patent number: 11109324Abstract: There is provided a wireless communication apparatus and wireless communication method, which can perform information transfer, while suppressing interference to other terminal stations, and preventing a reduction of a transmission opportunity of other terminal stations. By causing the transmission power to be reduced, at the time when a traffic amount to be transmitted and received by itself increases, a terminal station which performs wireless access based on CSMA on a mesh network can suppress interference to other surrounding terminal stations, and can prevent a reduction of a transmission opportunity of other terminal stations. By measuring the number of and sizes of packets to be transmitted and received, it is possible for a terminal station to comprehend the traffic amount to be transmitted and received by itself, and perform a control of the transmission power by this.Type: GrantFiled: February 19, 2020Date of Patent: August 31, 2021Assignee: SONY CORPORATIONInventors: Chihiro Fujita, Kazuyuki Sakoda, Nobuhiko Watanabe, Yoshihiko Ikenaga
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Publication number: 20200187131Abstract: There is provided a wireless communication apparatus and wireless communication method, which can perform information transfer, while suppressing interference to other terminal stations, and preventing a reduction of a transmission opportunity of other terminal stations. By causing the transmission power to be reduced, at the time when a traffic amount to be transmitted and received by itself increases, a terminal station which performs wireless access based on CSMA on a mesh network can suppress interference to other surrounding terminal stations, and can prevent a reduction of a transmission opportunity of other terminal stations. By measuring the number of and sizes of packets to be transmitted and received, it is possible for a terminal station to comprehend the traffic amount to be transmitted and received by itself, and perform a control of the transmission power by this.Type: ApplicationFiled: February 19, 2020Publication date: June 11, 2020Inventors: CHIHIRO FUJITA, KAZUYUKI SAKODA, NOBUHIKO WATANABE, YOSHIHIKO IKENAGA
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Patent number: 10602457Abstract: There is provided a wireless communication apparatus and wireless communication method, which can perform information transfer, while suppressing interference to other terminal stations, and preventing a reduction of a transmission opportunity of other terminal stations. By causing the transmission power to be reduced, at the time when a traffic amount to be transmitted and received by itself increases, a terminal station which performs wireless access based on CSMA on a mesh network can suppress interference to other surrounding terminal stations, and can prevent a reduction of a transmission opportunity of other terminal stations. By measuring the number of and sizes of packets to be transmitted and received, it is possible for a terminal station to comprehend the traffic amount to be transmitted and received by itself, and perform a control of the transmission power by this.Type: GrantFiled: November 15, 2018Date of Patent: March 24, 2020Assignee: SONY CORPORATIONInventors: Chihiro Fujita, Kazuyuki Sakoda, Nobuhiko Watanabe, Yoshihiko Ikenaga
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Patent number: 10383134Abstract: Communication resources are appropriately used. An information processing device is an information processing device including an acquisition unit and a control unit. Here, the acquisition unit acquires a relative priority of each information processing device in a network built through autonomous wireless communication of a plurality of information processing devices. In addition, the control unit performs control such that a communication resource of the network is allocated based on the priority (a relative priority of each information processing device in the network) acquired by the acquisition unit.Type: GrantFiled: June 1, 2018Date of Patent: August 13, 2019Assignee: SONY CORPORATIONInventors: Natsuki Itaya, Kazuyuki Sakoda, Nobuhiko Watanabe, Mitsuru Takehara, Takatoshi Nakamura, Masayuki Takada, Shuhei Sonoda
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Publication number: 20190104483Abstract: There is provided a wireless communication apparatus and wireless communication method, which can perform information transfer, while suppressing interference to other terminal stations, and preventing a reduction of a transmission opportunity of other terminal stations. By causing the transmission power to be reduced, at the time when a traffic amount to be transmitted and received by itself increases, a terminal station which performs wireless access based on CSMA on a mesh network can suppress interference to other surrounding terminal stations, and can prevent a reduction of a transmission opportunity of other terminal stations. By measuring the number of and sizes of packets to be transmitted and received, it is possible for a terminal station to comprehend the traffic amount to be transmitted and received by itself, and perform a control of the transmission power by this.Type: ApplicationFiled: November 15, 2018Publication date: April 4, 2019Inventors: CHIHIRO FUJITA, KAZUYUKI SAKODA, NOBUHIKO WATANABE, YOSHIHIKO IKENAGA
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Patent number: 10154464Abstract: There is provided a wireless communication apparatus and wireless communication method, which can perform information transfer, while suppressing interference to other terminal stations, and preventing a reduction of a transmission opportunity of other terminal stations. By causing the transmission power to be reduced, at the time when a traffic amount to be transmitted and received by itself increases, a terminal station which performs wireless access based on CSMA on a mesh network can suppress interference to other surrounding terminal stations, and can prevent a reduction of a transmission opportunity of other terminal stations. By measuring the number of and sizes of packets to be transmitted and received, it is possible for a terminal station to comprehend the traffic amount to be transmitted and received by itself, and perform a control of the transmission power by this.Type: GrantFiled: May 30, 2014Date of Patent: December 11, 2018Assignee: Sony CorporationInventors: Chihiro Fujita, Kazuyuki Sakoda, Nobuhiko Watanabe, Yoshihiko Ikenaga
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Patent number: 10123249Abstract: There is provided a method for generation and management of communication paths between a plurality of information processing devices are properly performed. An information processing device is equipped with a communication unit and a control unit to perform the method. The communication unit exchanges a signal for generation or updating of a multi-hop communication path using wireless communication with another information processing device. In addition, the control unit performs control for delaying a timing at which path information regarding a communication path set through the exchange of the signal for generation and updating of the multi-hop communication path is confirmed with reference to a reception timing of the signal.Type: GrantFiled: July 3, 2014Date of Patent: November 6, 2018Assignee: SONY CORPORATIONInventors: Kazuyuki Sakoda, Nobuhiko Watanabe, Chihiro Fujita, Yoshihiko Ikenaga
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Publication number: 20180279323Abstract: Communication resources are appropriately used. An information processing device is an information processing device including an acquisition unit and a control unit. Here, the acquisition unit acquires a relative priority of each information processing device in a network built through autonomous wireless communication of a plurality of information processing devices. In addition, the control unit performs control such that a communication resource of the network is allocated based on the priority (a relative priority of each information processing device in the network) acquired by the acquisition unit.Type: ApplicationFiled: June 1, 2018Publication date: September 27, 2018Applicant: SONY CORPORATIONInventors: Natsuki ITAYA, Kazuyuki Sakoda, Nobuhiko Watanabe, Mitsuru Takehara, Takatoshi Nakamura, Masayuki Takada, Shuhei Sonoda
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Patent number: 10075898Abstract: Generation and management of a communication path between a plurality of information processing devices are properly performed. An information processing device is equipped with a communication unit and a control unit. The communication unit performs exchange of a signal for generating or updating of a multi-hop communication path using wireless communication with another information processing device. In addition, the control unit performs control for updating path information regarding the communication path set through the exchange of the signal for generating or updating of the multi-hop communication path before the path information is destroyed.Type: GrantFiled: July 3, 2014Date of Patent: September 11, 2018Assignee: SONY CORPORATIONInventors: Nobuhiko Watanabe, Kazuyuki Sakoda, Chihiro Fujita, Yoshihiko Ikenaga
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Patent number: 10034223Abstract: An information processing device equipped with a communication unit and a control unit. The communication unit exchanges a signal for generation or updating of a multi-hop communication path using wireless communication with another information processing device. In addition, the control unit performs control such that, when there is path information regarding a communication path to another information processing device in a case in which the signal for generation or updating of a multi-hop communication path is transmitted to the other information processing device, the signal is transmitted to the other information processing device in unicast, and the signal is transmitted in broadcast.Type: GrantFiled: July 3, 2014Date of Patent: July 24, 2018Assignee: SONY CORPORATIONInventors: Kazuyuki Sakoda, Nobuhiko Watanabe, Chihiro Fujita, Yoshihiko Ikenaga
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Patent number: 10015806Abstract: Communication resources are appropriately used. An information processing device is an information processing device including an acquisition unit and a control unit. Here, the acquisition unit acquires a relative priority of each information processing device in a network built through autonomous wireless communication of a plurality of information processing devices. In addition, the control unit performs control such that a communication resource of the network is allocated based on the priority (a relative priority of each information processing device in the network) acquired by the acquisition unit.Type: GrantFiled: August 18, 2014Date of Patent: July 3, 2018Assignee: SONY CORPORATIONInventors: Natsuki Itaya, Kazuyuki Sakoda, Nobuhiko Watanabe, Mitsuru Takehara, Takatoshi Nakamura, Masayuki Takada, Shuhei Sonoda
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Patent number: 9992728Abstract: Generation and management of a communication path between a plurality of information processing devices are properly performed. An information processing device is an information processing device equipped with a communication unit and a control unit. The communication unit performs exchange of a signal for generation or updating of a multi-hop communication path using wireless communication with another information processing device. In addition, the control unit performs control to change a metric value included in the signal for generation or updating of the multi-hop communication path based on a state of the information processing device.Type: GrantFiled: July 3, 2014Date of Patent: June 5, 2018Assignee: SONY CORPORATIONInventors: Nobuhiko Watanabe, Kazuyuki Sakoda, Chihiro Fujita, Yoshihiko Ikenaga
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Patent number: 9763202Abstract: To suitably perform information transfer, while suppressing interference to other terminal stations, and preventing a reduction of a transmission opportunity of other terminal stations. A terminal station estimates a distance of another terminal station (within a receivable range), from an MCS or RSSI, for example, and controls a transmission power of itself, in accordance with a value weighted with respect to distance. For example, in the case where it is estimated that a number of terminal stations with a far distance has increased, from the value weighted with respect to distance, a transmission power of itself is lowered. As a result of this, transmission by multi-hop is explicitly performed, and it is possible to suppress electric wave interference of a multi-hop destination.Type: GrantFiled: May 30, 2014Date of Patent: September 12, 2017Assignee: SONY CORPORATIONInventors: Yoshihiko Ikenaga, Kazuyuki Sakoda, Nobuhiko Watanabe, Chihiro Fujita
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Patent number: 9699639Abstract: Disconnection from a network is easily recognized. A plurality of information processing devices connected over a network is disclosed. The network is built through wireless communication of the plurality of information processing devices. The plurality of information processing devices includes at least a first information processing device and a second information processing device. A detection unit of the first information processing device is configured to detect the second information processing device that is disconnected from the network. A control unit of the first information processing device is configured to output first information about the detected second information processing device as disconnection information.Type: GrantFiled: August 18, 2014Date of Patent: July 4, 2017Assignee: SONY CORPORATIONInventors: Natsuki Itaya, Kazuyuki Sakoda, Nobuhiko Watanabe, Mitsuru Takehara, Takatoshi Nakamura, Masayuki Takada, Shuhei Sonoda
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Publication number: 20160286566Abstract: Communication resources are appropriately used. An information processing device is an information processing device including an acquisition unit and a control unit. Here, the acquisition unit acquires a relative priority of each information processing device in a network built through autonomous wireless communication of a plurality of information processing devices. In addition, the control unit performs control such that a communication resource of the network is allocated based on the priority (a relative priority of each information processing device in the network) acquired by the acquisition unit.Type: ApplicationFiled: August 18, 2014Publication date: September 29, 2016Inventors: NATSUKI ITAYA, KAZUYUKI SAKODA, NOBUHIKO WATANABE, MITSURU TAKEHARA, TAKATOSHI NAKAMURA, MASAYUKI TAKADA, SHUHEI SONODA
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Publication number: 20160269975Abstract: Generation and management of a communication path between a plurality of information processing devices are properly performed. An information processing device is an information processing device equipped with a communication unit and a control unit. The communication unit performs exchange of a signal for generation or updating of a multi-hop communication path using wireless communication with another information processing device. In addition, the control unit performs control to change a metric value included in the signal for generation or updating of the multi-hop communication path based on a state of the information processing device.Type: ApplicationFiled: July 3, 2014Publication date: September 15, 2016Inventors: Nobuhiko WATANABE, Kazuyuki SAKODA, Chihiro FUJITA, Yoshihiko IKENAGA
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Publication number: 20160249199Abstract: Disconnection from a network is easily recognized. An information processing device is an information processing device including a detection unit and a control unit. The detection unit of the information processing device detects an information processing device that is disconnected from a network built through autonomous wireless communication of a plurality of information processing devices. In addition, the control unit of the information processing device performs control such that information about the information processing device detected by the detection unit of the information processing device is output as disconnection information.Type: ApplicationFiled: August 18, 2014Publication date: August 25, 2016Applicant: SONY CORPORATIONInventors: NATSUKI ITAYA, KAZUYUKI SAKODA, NOBUHIKO WATANABE, MITSURU TAKEHARA, TAKATOSHI NAKAMURA, MASAYUKI TAKADA, SHUHEI SONODA
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Publication number: 20160205613Abstract: Generation and management of a communication path between a plurality of information processing devices are properly performed. An information processing device is equipped with a communication unit and a control unit. The communication unit performs exchange of a signal for generating or updating of a multi-hop communication path using wireless communication with another information processing device. In addition, the control unit performs control for updating path information regarding the communication path set through the exchange of the signal for generating or updating of the multi-hop communication path before the path information is destroyed.Type: ApplicationFiled: July 3, 2014Publication date: July 14, 2016Inventors: NOBUHIKO WATANABE, KAZUYUKI SAKODA, CHIHIRO FUJITA, YOSHIHIKO IKENAGA
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Publication number: 20160205609Abstract: Generation and management of communication paths between a plurality of information processing devices are properly performed. An information processing device is an information processing device equipped with a communication unit and a control unit. The communication unit exchanges a signal for generation or updating of a multi-hop communication path using wireless communication with another information processing device. In addition, the control unit performs control for delaying a timing at which path information regarding a communication path set through the exchange of the signal for generation and updating of the multi-hop communication path is confirmed with reference to a reception timing of the signal.Type: ApplicationFiled: July 3, 2014Publication date: July 14, 2016Inventors: Kazuyuki SAKODA, Nobuhiko WATANABE, Chihrio FUJITA, Yoshihiko IKENAGA
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Publication number: 20160192275Abstract: Generation and management of a communication path between a plurality of information processing devices are properly performed. An information processing device is an information processing device equipped with a communication unit and a control unit. The communication unit exchanges a signal for generation or updating of a multi-hop communication path using wireless communication with another information processing device. In addition, the control unit performs control such that, when there is path information regarding a communication path to another information processing device in a case in which the signal for generation or updating of a multi-hop communication path is transmitted to the other information processing device, the signal is transmitted to the other information processing device in unicast, and the signal is transmitted in broadcast.Type: ApplicationFiled: July 3, 2014Publication date: June 30, 2016Inventors: Kazuyuki Sakoda, Nobuhiko Watanabe, Chihiro Fujita, Yoshihiko Ikenaga