Patents by Inventor Takuo Akimoto
Takuo Akimoto 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: 9900818Abstract: When a representative PS server receives a P-TMSI contained in a PDP context succession request signal from a UE according to a handover communication procedure prescribed in an applicable standard after the UE moves, if the PS server identified with the identification information contained in the received P-TMSI is not its own representative PS server, the representative PS server identifies the PS server identified with the identification information as a PS server that manages a femtocell base station to which the UE belonged before it moved and forwards the PDP context succession request signal to the identified PS server.Type: GrantFiled: August 28, 2012Date of Patent: February 20, 2018Assignee: NEC CorporationInventors: Yusuke Miyagawa, Takayuki Kido, Takuo Akimoto, Yuki Nakanishi, Osamu Kurokawa, Yasuhiro Watanabe
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Patent number: 9860729Abstract: AS-B (810) measures a telephone call time from a time point when a telephone call, which is audio-originated by UE (100), starts. When a time obtained by subtracting the telephone call time from a time for which the UE (100) can telephone-call becomes a predetermined time, the AS-B (810) issues a multiplex instruction to FAP (200). When having received the multiplex instruction, the FAP (200) multiplexes a sound, which is based on a sound source file stored in advance, with audio data to be transmitted to the UE (100), and transmits the audio data, with which the sound has been multiplexed, to the UE (100).Type: GrantFiled: February 27, 2014Date of Patent: January 2, 2018Assignee: NEC CorporationInventors: Tomoya Kogure, Yusuke Miyagawa, Takayuki Kido, Takuo Akimoto, Yasuhiro Watanabe
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Publication number: 20170188337Abstract: The present invention enables communication between different communication networks. The communication system 1 according to the present invention has: an SMSC 14 which is provided in a mobile network 10 over which a user terminal 2 performs communication through a wireless base station, and transmits a message to the user terminal 2; a GW 21 which is provided in an autonomous distributed network 20 over which a plurality of user terminals performs direct communication, and communicates with at least one of the plurality of user terminals 2; and a relay device 32 (32a) which, upon receiving a message transmitted using a predetermined protocol from one device of the SMSC 14 and the GW 21, performs communication, which corresponds to a message received from the other device, using a protocol that is used for communication with the other device and is different from the predetermined protocol.Type: ApplicationFiled: July 7, 2015Publication date: June 29, 2017Applicant: NEC CorporationInventors: Tomoya KOGURE, Yasuhiro WATANABE, Takayuki KIDO, Takuo AKIMOTO, Yusuke MIYAGAWA, Yuki NAKANISHI, Atsushi NAKAMURA
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Publication number: 20170164251Abstract: When a mobile terminal currently performing a voice communication or currently initiating a call by use of a VoLTE function moves from an LTE network to 3G femto-network, a GW (100) is connected to an MME (200) disposed on an access network in the LTE network and to an FAP (300) having an IMS-femtocell area as a communication area to be handed over the voice communication or the initiation of the call. When the mobile terminal currently performing the telephone communication or currently initiating the call moves from the communication area of the LTE network to the IMS-femtocell area, a call processing of the mobile terminal is caused to be handed over from the MME (200) to the FAP (300).Type: ApplicationFiled: June 1, 2015Publication date: June 8, 2017Applicant: NEC CorporationInventors: Tomoya KOGURE, Yasuhiro WATANABE, Takayuki KIDO, Takuo AKIMOTO, Yusuke MIYAGAWA
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Patent number: 9532292Abstract: When a representative service control device receives a PDP context succession request signal according to a handover communication procedure prescribed in an applicable standard, the representative service control device transmits a P-TMSI contained in the PDP context succession request signal as an address request to a database device. When the representative service control device receives address information of a service control device from the database device, the representative service control device forwards the PDP context succession request signal received from the request transmission means to the received address.Type: GrantFiled: August 27, 2012Date of Patent: December 27, 2016Assignee: NEC CorporationInventors: Yusuke Miyagawa, Takayuki Kido, Takuo Akimoto, Osamu Kurokawa, Yuki Nakanishi, Yasuhiro Watanabe
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Patent number: 9521591Abstract: When a voice call is made from or received by UE (100) that is present in both 3G femto area (101) and LTE area (103), line switching for making a voice call or receiving a voice call is performed from MME (112) to P-CSCF (108) by using a predetermined protocol.Type: GrantFiled: January 21, 2013Date of Patent: December 13, 2016Assignee: NEC CorporationInventors: Yusuke Miyagawa, Takayuki Kido, Takuo Akimoto, Yuki Nakanishi, Yasuhiro Watanabe
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Publication number: 20160073248Abstract: AS-B (810) measures a telephone call time from a time point when a telephone call, which is audio-originated by UE (100), starts. When a time obtained by subtracting the telephone call time from a time for which the UE (100) can telephone-call becomes a predetermined time, the AS-B (810) issues a multiplex instruction to FAP (200). When having received the multiplex instruction, the FAP (200) multiplexes a sound, which is based on a sound source file stored in advance, with audio data to be transmitted to the UE (100), and transmits the audio data, with which the sound has been multiplexed, to the UE (100).Type: ApplicationFiled: February 27, 2014Publication date: March 10, 2016Applicant: NEC CorporationInventors: Tomoya KOGURE, Yusuke MIYAGAWA, Takayuki KIDO, Takuo AKIMOTO, Yasuhiro WATANABE
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Patent number: 9264882Abstract: In order to enable a communication system introduced with a femtocell base station using an IMS network, to perform PS service similar to that of the existing 3G network, a service control apparatus (SGSN functional unit), based on the UE's message transmitted to the femtocell base station (FAP), acquires UE's subscriber information for PS (Packet Switching) service, from a HLR and registers the subscriber information in a VLR that is present on the IMS network. Then, service control apparatus performs PS service based on the subscriber information registered in the VLR.Type: GrantFiled: June 22, 2012Date of Patent: February 16, 2016Assignee: NEC CORPORATIONInventors: Yusuke Miyagawa, Takayuki Kido, Takuo Akimoto, Osamu Kurokawa, Yuki Nakanishi, Yasuhiro Watanabe
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Patent number: 9215576Abstract: A communication system of the present invention is a communication system connected to a public communication network including emergency organization communication apparatus (14), the communication system includes femto base station (2) wirelessly connected to wireless terminal (1), wherein femto base station (2) includes a first communication controller that attaches first location information, which is information for identifying a location of femto base station (2) or for identifying a location of an assembly of a plurality of base stations including femto base station (2), to a SIP message in order to notify the first location information to emergency organization communication apparatus (14) when there is a call from wireless terminal (1), and transmits the SIP message to another apparatus.Type: GrantFiled: December 21, 2009Date of Patent: December 15, 2015Assignee: NEC CORPORATIONInventors: Osamu Kurokawa, Kazuki Eguchi, Naoki Yoshida, Shunsuke Yokouchi, Yasuhiro Watanabe, Hiroaki Akiyama, Takuo Akimoto
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Publication number: 20150304895Abstract: When a voice call is made from or received by UE (100) that is present in both 3G femto area (101) and LTE area (103), line switching for making a voice call or receiving a voice call is performed from MME (112) to P-CSCF (108) by using a predetermined protocol.Type: ApplicationFiled: January 21, 2013Publication date: October 22, 2015Applicant: NEC CorporationInventors: Yusuke MIYAGAWA, Takayuki KIDO, Takuo AKIMOTO, Yuki NAKANISHI, Yasuhiro WATANABE
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Publication number: 20150181630Abstract: A service control apparatus provides a PS (Packet Switching) service to UE (User Equipment) that are present in a communication area created by a femtocell base station in an IMS (IP Multimedia Subsystem) network. The service control apparatus includes tunnel establishing means that establishes an IPsec (Security Architecture for Internet Protocol) tunnel with the femtocell base station; and service control means that, when there are requests for provision of the PS service from a plurality of the UE, provides the PS service to the plurality of UE by way of a common IPsec tunnel that was established by the tunnel establishing means.Type: ApplicationFiled: December 28, 2012Publication date: June 25, 2015Applicant: NEC CorporationInventors: Yusuke Miyagawa, Takayuki Kido, Takuo Akimoto, Yuki Nakanishi, Yasuhiro Watanabe
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Patent number: 8880094Abstract: Provided is a broadcast control apparatus that realizes broadcasting to a predetermined distribution area, as in an existing public mobile communication network in a communication system using a femto cell base station. The broadcast control apparatus includes a database, in which location information of the femto cell base station existing in a predetermined distribution area section is associated with the distribution area section. The broadcast control apparatus also includes update means for updating the association in the database based on the location information of the femto cell base station received by reception means.Type: GrantFiled: December 22, 2010Date of Patent: November 4, 2014Assignee: NEC CorporationInventors: Osamu Kurokawa, Yasuhiro Watanabe, Hiroaki Akiyama, Daisuke Nakamura, Takeshi Nishimura, Takuo Akimoto
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Publication number: 20140219252Abstract: When a representative service control device receives a PDP context succession request signal according to a handover communication procedure prescribed in an applicable standard, the representative service control device transmits a P-TMSI contained in the PDP context succession request signal as an address request to a database device. When the representative service control device receives address information of a service control device from the database device, the representative service control device forwards the PDP context succession request signal received from the request transmission means to the received address.Type: ApplicationFiled: August 27, 2012Publication date: August 7, 2014Applicant: NEC CORPORATIONInventors: Yusuke Miyagawa, Takayuki Kido, Takuo Akimoto, Osamu Kurokawa, Yuki Nakanishi, Yasuhiro Watanabe
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Publication number: 20140213260Abstract: When a representative PS server receives a P-TMSI contained in a PDP context succession request signal from a UE according to a handover communication procedure prescribed in an applicable standard after the UE moves, if the PS server identified with the identification information contained in the received P-TMSI is not its own representative PS server, the representative PS server identifies the PS server identified with the identification information as a PS server that manages a femtocell base station to which the UE belonged before it moved and forwards the PDP context succession request signal to the identified PS server.Type: ApplicationFiled: August 28, 2012Publication date: July 31, 2014Applicant: NEC CORPORATIONInventors: Yusuke Miyagawa, Takayuki Kido, Takuo Akimoto, Yuki Nakanishi, Osamu Kurokawa, Yasuhiro Watanabe
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Patent number: 8731541Abstract: The femto cell base station is a femto cell base station that connects a UE (User Equipment) to a core network side and includes storing means and control means. The storing means retains subscriber information of the UE visiting an area under control of the femto cell base station. The control means deletes the subscriber information of the UE, that is removed from the control of the femto cell base station, from the storing means.Type: GrantFiled: April 12, 2010Date of Patent: May 20, 2014Assignee: NEC CorporationInventors: Yusuke Miyagawa, Takayuki Kido, Takuo Akimoto, Takeshi Nishimura, Shunsuke Yokouchi, Naoki Yoshida, Yasuhiro Watanabe, Hiroaki Akiyama
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Patent number: 8649767Abstract: A Femtocell base station has a determination means and a transmission means. The determination means, upon receiving a location update request message from UE (User Equipment), determines whether a first message that prompts the UE to again attempt a location update should be transmitted to the UE, whether a second message that prompts the UE to divert to another network should be transmitted to the UE, or whether a third message that notifies the UE that the location update request is accepted should be transmitted to the UE. The transmission means transmits to the UE either the first message, or the second message, or the third message in accordance with the determination of the determination means.Type: GrantFiled: April 5, 2010Date of Patent: February 11, 2014Assignee: NEC CorporationInventors: Osamu Kurokawa, Yasuhiro Watanabe, Hiroaki Akiyama, Takayuki Kido, Takuo Akimoto, Yusuke Miyagawa
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Publication number: 20140038565Abstract: A Femtocell base station has a determination means and a transmission means. The determination means, upon receiving a location update request message from UE (User Equipment), determines whether a first message that prompts the UE to again attempt a location update should be transmitted to the UE, whether a second message that prompts the UE to divert to another network should be transmitted to the UE, or whether a third message that notifies the UE that the location update request is accepted should be transmitted to the UE. The transmission means transmits to the UE either the first message, or the second message, or the third message in accordance with the determination of the determination means.Type: ApplicationFiled: October 11, 2013Publication date: February 6, 2014Applicant: NEC CORPORATIONInventors: OSAMU KUROKAWA, YASUHIRO WATANABE, HIROAKI AKIYAMA, TAKAYUKI KIDO, TAKUO AKIMOTO, YUSUKE MIYAGAWA
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Publication number: 20140038595Abstract: A Femtocell base station has a determination means and a transmission means. The determination means, upon receiving a location update request message from UE (User Equipment), determines whether a first message that prompts the UE to again attempt a location update should be transmitted to the UE, whether a second message that prompts the UE to divert to another network should be transmitted to the UE, or whether a third message that notifies the UE that the location update request is accepted should be transmitted to the UE. The transmission means transmits to the UE either the first message, or the second message, or the third message in accordance with the determination of the determination means.Type: ApplicationFiled: October 11, 2013Publication date: February 6, 2014Applicant: NEC CORPORATIONInventors: OSAMU KUROKAWA, YASUHIRO WATANABE, HIROAKI AKIYAMA, TAKAYUKI KIDO, TAKUO AKIMOTO, YUSUKE MIYAGAWA
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Patent number: 8620378Abstract: A Femto Access Point includes determination means for determining whether or not called side user equipment is accommodated in the Femto Access Point; and communication control means for, if the determination means has determined that the called side user equipment is accommodated in the Femto Access Point, sending out a Ring Back Tone to calling side user equipment.Type: GrantFiled: December 21, 2009Date of Patent: December 31, 2013Assignee: Nec CorporationInventors: Osamu Kurokawa, Kazuki Eguchi, Naoki Yoshida, Shunsuke Yokouchi, Yasuhiro Watanabe, Hiroaki Akiyama, Takuo Akimoto
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Publication number: 20130310028Abstract: In order to enable a communication system introduced with a femtocell base station using an IMS network, to perform PS service similar to that of the existing 3G network, a service control apparatus (SGSN functional unit), based on the UE's message transmitted to the femtocell base station (FAP), acquires UE's subscriber information for PS (Packet Switching) service, from a HLR and registers the subscriber information in a VLR that is present on the IMS network. Then, service control apparatus performs PS service based on the subscriber information registered in the VLR.Type: ApplicationFiled: June 22, 2012Publication date: November 21, 2013Applicant: NEC CORPORATIONInventors: Yusuke Miyagawa, Takayuki Kido, Takuo Akimoto, Osamu Kurokawa, Yuki Nakanishi, Yasuhiro Watanabe