Patents by Inventor Akihiro Kameda
Akihiro Kameda 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: 20180097916Abstract: A communication apparatus includes a decipher deciphering received ciphered data, a first processor configured to generate, when receiving deciphered data for which the ciphered data is deciphered, a header of a first protocol including the deciphered data in a payload and an addition value for which the deciphered data is added in a predetermined size unit, a packet including the deciphered data, the header of the first protocol, and a header of a second protocol and a header of a third protocol, a second processor configured to calculate a checksum value set to the header of the second protocol using the addition value and a transmitter configured to transmit the packet to which the checksum value is set.Type: ApplicationFiled: September 14, 2017Publication date: April 5, 2018Applicant: FUJITSU LIMITEDInventors: Isamu Fukuda, Katsuhiko Negoto, Kazuhiro Yasuno, Akihiro KAMEDA, MASUMI KOBAYASHI, KIYOHISA HOSHINO
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Publication number: 20170295019Abstract: A communication device includes, a plurality of authentication generation processing units, which are respectively associated with different sequence number groups each including successive sequence numbers and which execute, in parallel, authentication generation processes for generating authentication information included in the packets based on sequence numbers allocated to the packets, a transmitting unit which transmits packets including the allocated sequence numbers to another communication device in an order in which authentication generation processes by the plurality of authentication generation processing units are completed, a receiving unit which receives a packet from the other communication device, and an authentication processing unit which executes a first authentication process in which the reception packet is authenticated based on a relationship between a sequence number of the reception packet and a sequence number of a preceding reception packet.Type: ApplicationFiled: March 28, 2017Publication date: October 12, 2017Applicant: FUJITSU LIMITEDInventors: Isamu Fukuda, Tetsuta SAKABE, Katsuhiko Negoto, KIYOHISA HOSHINO, Akihiro KAMEDA, Kazuhiro Yasuno
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Patent number: 9411968Abstract: A communication apparatus performs encryption on data transmitted from another communication apparatus by using first or second cryptographic algorithm, or performs decryption on the data that has been encrypted using the first or second cryptographic algorithm, by using one of the first and second cryptographic algorithms used for the encryption, where the second cryptographic algorithm provides a higher security level than the first cryptographic algorithm. The communication apparatus includes an encryption unit configured to perform, upon receiving the data including a cryptographic class identifying a parameter to be used for performing the encryption or the decryption, the encryption or the decryption by using one of the first and second cryptographic algorithms, based on the cryptographic class.Type: GrantFiled: August 30, 2013Date of Patent: August 9, 2016Assignee: FUJITSU LIMITEDInventors: Isamu Fukuda, Shigeaki Kawamata, Jun Roppongi, Akihiro Kameda, Kazuyuki Minohara, Nobuyuki Fukuda
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Patent number: 9367698Abstract: A communication apparatus performs encryption on data transmitted from another communication apparatus by using first or second cryptographic algorithm, or performs decryption on the data that has been encrypted using the first or second cryptographic algorithm, by using one of the first and second cryptographic algorithms used for the encryption, where the second cryptographic algorithm provides a higher security level than the first cryptographic algorithm. The communication apparatus includes an encryption unit configured to perform, upon receiving the data including a cryptographic class identifying a parameter to be used for performing the encryption or the decryption, the encryption or the decryption by using one of the first and second cryptographic algorithms, based on the cryptographic class.Type: GrantFiled: August 30, 2013Date of Patent: June 14, 2016Assignee: FUJITSU LIMITEDInventors: Isamu Fukuda, Shigeaki Kawamata, Jun Roppongi, Akihiro Kameda, Kazuyuki Minohara, Nobuyuki Fukuda
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Patent number: 9210661Abstract: A wireless base station apparatus includes a determination unit configured to make a determination as to whether an amount of power in the terminal device is to be reduced, and a control information transmission unit configured to transmit control information indicating power control to the terminal device, based on a determination result of the determination unit, and a terminal device includes at least one outlet unit configured to be able to supply power to an external device, a measurement unit configured to acquire the measurement value by measuring power in the terminal device, a measurement information transmission unit configured to transmit the measurement information indicating the measurement value to the wireless base station apparatus, a control information reception unit configured to receive the control information from the wireless base station apparatus, and a power supply control unit configured to control supply of power, based on the received control information.Type: GrantFiled: June 3, 2014Date of Patent: December 8, 2015Assignee: FUJITSU LIMITEDInventor: Akihiro Kameda
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Publication number: 20150011174Abstract: A wireless base station apparatus includes a determination unit configured to make a determination as to whether an amount of power in the terminal device is to be reduced, and a control information transmission unit configured to transmit control information indicating power control to the terminal device, based on a determination result of the determination unit, and a terminal device includes at least one outlet unit configured to be able to supply power to an external device, a measurement unit configured to acquire the measurement value by measuring power in the terminal device, a measurement information transmission unit configured to transmit the measurement information indicating the measurement value to the wireless base station apparatus, a control information reception unit configured to receive the control information from the wireless base station apparatus, and a power supply control unit configured to control supply of power, based on the received control information.Type: ApplicationFiled: June 3, 2014Publication date: January 8, 2015Applicant: FUJITSU LIMITEDInventor: Akihiro KAMEDA
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Publication number: 20140136853Abstract: A communication apparatus performs encryption on data transmitted from another communication apparatus by using first or second cryptographic algorithm, or performs decryption on the data that has been encrypted using the first or second cryptographic algorithm, by using one of the first and second cryptographic algorithms used for the encryption, where the second cryptographic algorithm provides a higher security level than the first cryptographic algorithm. The communication apparatus includes an encryption unit configured to perform, upon receiving the data including a cryptographic class identifying a parameter to be used for performing the encryption or the decryption, the encryption or the decryption by using one of the first and second cryptographic algorithms, based on the cryptographic class.Type: ApplicationFiled: August 30, 2013Publication date: May 15, 2014Applicant: FUJITSU LIMITEDInventors: Isamu FUKUDA, Shigeaki Kawamata, Jun Roppongi, Akihiro Kameda, Kazuyuki Minohara, Nobuyuki Fukuda
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Patent number: 8693313Abstract: A packet is transmitted from a transmitting device to an active communication device which transmits a reception history identifying the received packets to the transmitting device. The transmitting device transmits an active-mode request message to a standby communication device when having failed to receive the reception history from the active communication device within a predetermined time period. Then, the standby communication device becomes a new active communication device, and the active communication device becomes an old active communication device. The new active communication device transmits to the transmitting device a switching request message for switching a destination of the packet from the old active communication device to the new active communication device.Type: GrantFiled: November 30, 2010Date of Patent: April 8, 2014Assignee: Fujitsu LimitedInventors: Katsuhiko Negoto, Akihiro Kameda, Isamu Fukuda, Atsushi Morohashi, Toshifumi Inoue, Kiyohisa Hoshino, Nobuyuki Fukuda, Kenji Fukuda, Kazuhiro Yasuno
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Publication number: 20110299386Abstract: A packet is transmitted from a transmitting device to an active communication device which transmits a reception history identifying the received packets to the transmitting device. The transmitting device transmits an active-mode request message to a standby communication device when having failed to receive the reception history from the active communication device within a predetermined time period. Then, the standby communication device becomes a new active communication device, and the active communication device becomes an old active communication device. The new active communication device transmits to the transmitting device a switching request message for switching a destination of the packet from the old active communication device to the new active communication device.Type: ApplicationFiled: November 30, 2010Publication date: December 8, 2011Applicant: FUJITSU LIMITEDInventors: Katsuhiko Negoto, Akihiro Kameda, Isamu Fukuda, Atsushi Morohashi, Toshifumi Inoue, Kiyohisa Hoshino, Nobuyuki Fukuda, Kenji Fukuda, Kazuhiro Yasuno