Patents by Inventor Hisashi Takeshita
Hisashi Takeshita 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: 8787229Abstract: A mobile terminal includes: a first manner of wireless communicator for conducting wireless communication with a client terminal; a second communicator for conducting wireless communication with a network (NW1); storage for storing data; and communication control for causing data to be transmitted between communicators. The communication control causing data received via the second communicator to be stored when a client terminal is in a state in which the client terminal does not receive data, and causes the stored data to be transmitted by the first communicator when the client terminal is in a state in which the client terminal receives data. Further, the communication control causes the data received via the first communicator to be stored when wireless communication with the network is not possible, and causes the stored data to be transmitted by the second communicator when wireless communication with the network is possible.Type: GrantFiled: February 8, 2010Date of Patent: July 22, 2014Assignee: NTT DoCoMo, Inc.Inventors: Nobuaki Sasao, Jun Hashimoto, Hisashi Takeshita, Kentaro Itagaki
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Patent number: 8687615Abstract: An HGW mobile device 20 can perform data communication on the basis of a plurality of wireless communication methods with different theoretical maximum transmission speeds, i.e., on the basis of a mobile wireless communication method and a wireless LAN communication method. Since the HGW mobile device 20 is provided with a mobile wireless communication unit 210 and a wireless LAN communication unit 250, it is able to relay data transmission between an external network 10 and a client terminal 30. A transmission speed initializing unit 230 sets a value according to a theoretical maximum transmission speed of the wireless communication method with the slower theoretical maximum transmission speed, i.e., the theoretical maximum transmission speed of the mobile wireless communication method, as an initial transmission speed for the wireless LAN communication unit 250 to first start wireless LAN communication with the client terminal 30 on the basis of the wireless LAN communication method.Type: GrantFiled: November 5, 2009Date of Patent: April 1, 2014Assignee: NTT DoCoMo, Inc.Inventors: Nobuaki Sasao, Jun Hashimoto, Hisashi Takeshita, Kentaro Itagaki
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Patent number: 8483198Abstract: Communication terminal 1 receives an MCC (Mobile Country Code) from a wireless base station located in one country and a wireless base station located in another country adjacent to the one country, using first communication unit 108A. Communication terminal 1 obtains from storage unit 105 setting data on a wireless LAN, which is commonly associated with the countries indicated by the received MCCs. Second communication unit 108B carries out wireless LAN communication using the obtained setting data.Type: GrantFiled: May 27, 2010Date of Patent: July 9, 2013Assignee: NTT DoCoMo, Inc.Inventors: Nobuaki Sasao, Jun Hashimoto, Hisashi Takeshita, Kentaro Itagaki
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Patent number: 8385252Abstract: An object is to realize execution of an access point function while keeping power consumption low. A cell phone 1 has a relay unit 16 for relaying data transmitted between a digital camera 5 and a network, and a relay controller 17 for changing an operation state of the relay unit 16, based on a location state in a mobile communication network 2 derived based on a reception situation of a signal from a base station 2a of the mobile communication network 2, and a location information in a wireless LAN 3 derived based on a reception situation of a signal from a base station 3a of the wireless LAN 3.Type: GrantFiled: November 2, 2009Date of Patent: February 26, 2013Assignee: NTT DoCoMo, Inc.Inventors: Jun Hashimoto, Hisashi Takeshita, Kentaro Itagaki, Nobuaki Sasao
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Patent number: 8340048Abstract: An object is to urge a communication terminal connecting (or belonging) to a mobile terminal, to carry out a handover. A cell phone 1 has a relay unit 15 for relaying data transmitted between a digital camera 5 and a network, and a relay controller 17 for controlling the relay unit 15, based on a location state in a wireless LAN 3 derived based on a reception situation of a beacon from a base station 3a of the wireless LAN 3 different from a mobile communication network 2. The relay controller 17 cancels a connection to the digital camera 5 when the mobile terminal is located inside an area of the wireless LAN 3.Type: GrantFiled: November 2, 2009Date of Patent: December 25, 2012Assignee: NTT DoCoMo, Inc.Inventors: Jun Hashimoto, Hisashi Takeshita, Kentaro Itagaki, Nobuaki Sasao
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Publication number: 20110292864Abstract: A mobile terminal includes: a first manner of wireless communicator for conducting wireless communication with a client terminal; a second communicator for conducting wireless communication with a network (NW1); storage for storing data; and communication control for causing data to be transmitted between communicators. The communication control causing data received via the second communicator to be stored when a client terminal is in a state in which the client terminal does not receive data, and causes the stored data to be transmitted by the first communicator when the client terminal is in a state in which the client terminal receives data. Further, the communication control causes the data received via the first communicator to be stored when wireless communication with the network is not possible, and causes the stored data to be transmitted by the second communicator when wireless communication with the network is possible.Type: ApplicationFiled: February 8, 2010Publication date: December 1, 2011Applicant: NTT DOCOMO, INC.Inventors: Nobuaki Sasao, Jun Hashimoto, Hisashi Takeshita, Kentaro Itagaki
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Publication number: 20110261798Abstract: An HGW mobile device 20 can perform data communication on the basis of a plurality of wireless communication methods with different theoretical maximum transmission speeds, i.e., on the basis of a mobile wireless communication method and a wireless LAN communication method. Since the HGW mobile device 20 is provided with a mobile wireless communication unit 210 and a wireless LAN communication unit 250, it is able to relay data transmission between an external network 10 and a client terminal 30. A transmission speed initializing unit 230 sets a value according to a theoretical maximum transmission speed of the wireless communication method with the slower theoretical maximum transmission speed, i.e., the theoretical maximum transmission speed of the mobile wireless communication method, as an initial transmission speed for the wireless LAN communication unit 250 to first start wireless LAN communication with the client terminal 30 on the basis of the wireless LAN communication method.Type: ApplicationFiled: November 5, 2009Publication date: October 27, 2011Applicant: NTT DOCOMO, INC.Inventors: Nobuaki Sasao, Jun Hashimoto, Hisashi Takeshita, Kentaro Itagaki
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Publication number: 20100316031Abstract: Communication terminal 1 receives an MCC (Mobile Country Code) from a wireless base station located in one country and a wireless base station located in another country adjacent to the one country, using first communication unit 108A. Communication terminal 1 obtains from storage unit 105 setting data on a wireless LAN, which is commonly associated with the countries indicated by the received MCCs. Second communication unit 108B carries out wireless LAN communication using the obtained setting data.Type: ApplicationFiled: May 27, 2010Publication date: December 16, 2010Applicant: NTT DOCOMO, INC.Inventors: Nobuaki Sasao, Jun Hashimoto, Hisashi Takeshita, Kentaro Itagaki
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Publication number: 20100120439Abstract: An object is to urge a communication terminal connecting (or belonging) to a mobile terminal, to carry out a handover. A cell phone 1 has a relay unit 15 for relaying data transmitted between a digital camera 5 and a network, and a relay controller 17 for controlling the relay unit 15, based on a location state in a wireless LAN 3 derived based on a reception situation of a beacon from a base station 3a of the wireless LAN 3 different from a mobile communication network 2. The relay controller 17 cancels a connection to the digital camera 5 when the mobile terminal is located inside an area of the wireless LAN 3.Type: ApplicationFiled: November 2, 2009Publication date: May 13, 2010Applicant: NTT DoCoMo, Inc.Inventors: Jun HASHIMOTO, Hisashi Takeshita, Kentaro Itagaki, Nobuaki Sasao
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Publication number: 20100118762Abstract: An object is to realize execution of an access point function while keeping power consumption low. A cell phone 1 has a relay unit 16 for relaying data transmitted between a digital camera 5 and a network, and a relay controller 17 for changing an operation state of the relay unit 16, based on a location state in a mobile communication network 2 derived based on a reception situation of a signal from a base station 2a of the mobile communication network 2, and a location information in a wireless LAN 3 derived based on a reception situation of a signal from a base station 3a of the wireless LAN 3.Type: ApplicationFiled: November 2, 2009Publication date: May 13, 2010Applicant: NTT DoCoMo, Inc.Inventors: Jun HASHIMOTO, Hisashi Takeshita, Kentaro Itagaki, Nobuaki Sasao
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Patent number: 7184769Abstract: In a mobile communication system, radio channel capacity can be secured. A plurality of base stations transmit to a mobile station information X0 and the like about diversity handover, and a reference signal (such as a perch signal). The mobile station measures received quality (such as a received power) of the reference signal. The mobile station makes a decision for each of the plurality of base stations as to whether the service area is to be selected as a candidate of a service area in which the mobile station will start new communication, and/or as a candidate of a service area in which the mobile station will stop current communication.Type: GrantFiled: October 1, 2001Date of Patent: February 27, 2007Assignee: NTT DoCoMo, Inc.Inventors: Noriyuki Tsutsumi, Hidenari Kato, Hisashi Takeshita, Shogo Ito
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Patent number: 7031674Abstract: Method for detecting transmission power faults in cellular telephones without detecting transmission power. A microcomputer compares a criteria B with an absolute value |Pi?Pc| of the differential between initial transmission power value Pi and transmission power concentration value PC. A transmission power fault is determined to have occurred when the absolute value 51 Pi?Pc| is larger than criteria B (|Pi?Pc|>B), so transmission power faults can be detected without detecting the transmission power.Type: GrantFiled: September 30, 2002Date of Patent: April 18, 2006Assignees: DENSO Corporation, NTT DoCoMo, Inc.Inventors: Ryohei Kataoka, Hisashi Takeshita, Hiroyuki Itazu, Mio Okamoto
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Publication number: 20030139154Abstract: Method for detecting transmission power faults in cellular telephones without detecting transmission power. A microcomputer compares a criteria B with an absolute value |Pi−Pc| of the differential between initial transmission power value Pi and transmission power concentration value PC. A transmission power fault is determined to have occurred when the absolute value 51 Pi−Pc| is larger than criteria B (|Pi−Pc|>B), so transmission power faults can be detected without detecting the transmission power.Type: ApplicationFiled: September 30, 2002Publication date: July 24, 2003Inventors: Ryohei Kataoka, Hisashi Takeshita, Hiroyuki Itazu, Mio Okamoto
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Publication number: 20030078034Abstract: The mobile communications system 10 comprises cellular telephones 12 and 14 and a network device 16. Information such as images, music, text and the like is stored in the storage part 17 of the cellular telephone 12. Requests for information that are transmitted from the cellular telephone 14 are received by the cellular telephone 12 via a network device 16. Furthermore, the information in question is read out from the storage part 17 of the cellular telephone 12 that has received transmission requests for the abovementioned information, and is transmitted to the cellular telephone 14 via the network device 16.Type: ApplicationFiled: October 21, 2002Publication date: April 24, 2003Applicant: NTT DoCoMo, Inc.Inventors: Noriyuki Tsutsumi, Hidenari Kato, Hisashi Takeshita, Shogo Ito
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Publication number: 20020072372Abstract: In a mobile communication system, radio channel capacity can be secured. A plurality of base stations transmit to a mobile station information X0 and the like about diversity handover, and a reference signal (such as a perch signal). The mobile station measures received quality (such as a received power) of the reference signal. The mobile station makes a decision for each of the plurality of base stations as to whether the service area is to be selected as a candidate of a service area in which the mobile station will start new communication, and/or as a candidate of a service area in which the mobile station will stop current communication.Type: ApplicationFiled: October 1, 2001Publication date: June 13, 2002Inventors: Noriyuki Tsutsumi, Hidenari Kato, Hisashi Takeshita, Shogo Ito