Patents by Inventor Takeshi Kanazawa

Takeshi Kanazawa 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).

  • Publication number: 20090052414
    Abstract: A 3G authentication apparatus (109) includes: a WLAN communication section (201) which receives a notification of reception of a connection request sent from a WLAN access network in response to the connection request from a mobile unit to connect to a WLAN capable of interworking with a mobile network; an HSS communication section (203) for obtaining, from a user information storing device, information indicating a service available in the mobile communication network to the mobile unit that has sent the connection request, on the basis of the notification of reception of the connection request; and a filter setting section (206) which generates filter information by associating a user authentication ID identifying a mobile unit with an IP address obtained at the HSS communication section (203). The filter information generated by the filter setting section (206) is sent to the WLAN access network through the WLAN communication section (201).
    Type: Application
    Filed: March 17, 2006
    Publication date: February 26, 2009
    Inventors: Satoshi Senga, Hidenori Ishii, Hiroshi Ishida, Takeshi Kanazawa
  • Publication number: 20090052415
    Abstract: A terminal (101) includes interfaces for communication with a mobile network (102) and a wireless LAN (103). A first IMS server (107) performs IMS call control processing relating to terminals located in the mobile network (102) and a second IMS server (111) relays a signal relating to IMS call control processing concerning terminals located in the wireless LAN (103). These IMS servers search for a mobile network packet gateway (106), a packet data gateway (110), and a gateway to be controlled by a route change request for requesting change of a packet transmission path and relay the route change request. The route change request provided from the terminal (101) is relayed by the IMS servers to provide the change request to all networks specified. The packet transmission path is changed by the gateway in accordance with the request. Thus, the terminal having the interfaces for both of the mobile communication network and the wireless LAN can select a network to use for each communication port.
    Type: Application
    Filed: March 22, 2006
    Publication date: February 26, 2009
    Inventors: Hidenori Ishii, Satoshi Senga, Hiroshi Ishida, Takeshi Kanazawa
  • Publication number: 20080201066
    Abstract: A control section (212) adds first time information from a clock (204) to road traffic information from a light beacon communication device to create road traffic information by first time for storing in a storage device (205). A time judging device (209) receives second time information from other mobile communication terminal and creates an information transmission instruction if the first time of the first time information is more up-to-date than the second time of the second time information. An information selecting section (211) selects and transmits a part of the road traffic information by first time based on other traveling direction information indicative of the traveling direction of other vehicle and traveling direction information from an azimuth finder (208). Upon receiving road traffic information by third time from other mobile communication terminal, the control section (212) overwrites the road traffic information by first time in the storage device (205).
    Type: Application
    Filed: April 19, 2005
    Publication date: August 21, 2008
    Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
    Inventor: Takeshi Kanazawa
  • Publication number: 20080159310
    Abstract: An object of the invention is to shorten the switching time from a first network to a second network.
    Type: Application
    Filed: January 6, 2006
    Publication date: July 3, 2008
    Inventors: Satoshi Senga, Hidenori Ishii, Hiroshi Ishida, Takeshi Kanazawa
  • Publication number: 20080117884
    Abstract: A radio network controller (104) according to the present invention outputs a context required for a terminal (110a) capable of communicating with a mobile communication network and a wireless local area network to communicate with the wireless local area network to the terminal (110a) among pieces of information input from wireless access gateways (105a, 105b) that control connection with one or more wireless local area networks (103a, 103b) and provide seamless handover of packet communication between the mobile communication network and the wireless LAN.
    Type: Application
    Filed: December 7, 2005
    Publication date: May 22, 2008
    Inventors: Hidenori Ishii, Satoshi Senga, Hiroshi Ishida, Takeshi Kanazawa
  • Publication number: 20080101243
    Abstract: A communication apparatus wherein the function arrangement of each device is revised, thereby preventing an increase in traffic of a public network and further suppressing an increase in communication cost of the public network. In this apparatus, a control part (101), when notified of a duplication of MBMS data by RNC-c, controls a PDCP part (102), an RLC part (103) and a MAC-d part (104) so as to perform an MBMS data duplication process. The control part (101), when notified of an establishment of a communication line with a node (B), controls the PDCP part (102), RLC part (103) and MAC-d part (104) so as to establish the communication line with the node (B). The RLC part (103) duplicates, based on the control by the control part (101), the MBMS data received from the PDCP part (102). The MAC-d part (104) transmits the MBMS data as MAC processed to the node (B) via a local network between an RNC-u (100) and the node (B).
    Type: Application
    Filed: December 27, 2005
    Publication date: May 1, 2008
    Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
    Inventors: Akito Fukui, Kenichiro Iida, Takeshi Kanazawa, Tomofumi Tamura
  • Publication number: 20070237109
    Abstract: There is provided a mobile communication system capable of improving the throughput. In this system, a radio base station device (1022) waits for an upstream retransmission packet for a predetermined period of time before the moment when the retransmission time out expiration time has come and transmits a retransmission wait release request to a radio network control device (1031). When the radio base station device (1022) receives a retransmission wait release response instructing to stop the retransmission wait from the radio network control device (1031), it stops wait for the upstream packet retransmission. When the radio network control device (1031) has confirmed that the upstream packet has been received from another radio base station device upon reception of the retransmission wait release request, it creates the retransmission wait release response instruction stop of the retransmission wait and transmits it to the radio base station device (1022).
    Type: Application
    Filed: September 13, 2005
    Publication date: October 11, 2007
    Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
    Inventors: Kenichiro Iida, Akito Fukui, Takeshi Kanazawa, Tomojumi Tamura
  • Publication number: 20070195799
    Abstract: A packet routing method for quickly reorganizing a path from a transmission source terminal to a destination terminal. A radio receiver part (103) detects, from a decrease of the field intensity or the like, a cut-off of a communication with a communication device using a radio signal to directly transmit packets. A control part (105) determines whether the local terminal device including it is the packet destination radio terminal device or the packet transmission source radio terminal device. When it is determined that the communication with a communication device using the radio signal to directly transmit packets is cut off and that the local terminal device is the transmission source radio terminal device, a radio transmitter part (104) broadcasts a request signal of path restoration addressed to the packet destination communication device.
    Type: Application
    Filed: February 17, 2005
    Publication date: August 23, 2007
    Applicant: Matsushita Electric Industrial Co., Ltd
    Inventors: Takeshi Kanazawa, Naoto Oka, Toyoki Kawahara, Hirokazu Kobayashi
  • Publication number: 20070195768
    Abstract: A packet routing apparatus that simultaneously implements prompt route recovery and continuation of communication by an optimal route. A radio reception section (103) receives a radio signal including packet data received in a transmission/reception antenna (101) via a circulator (102). Further, the radio reception section (103) detects disconnection of an adhoc network by a decrease in electric filed strength of a signal from a communicating party. A radio reception section (104) transmits a radio signal including a route search packet, route response packet or the like from the transmission/reception antenna (101) via the circulator (102). When the adhoc network is disconnected, a control section (105) performs processing of route recovery for transmitting a route search packet to a destination wireless adhoc terminal, while performing route reconstruction processing for reporting route disconnection to a transmission source wireless adhoc terminal.
    Type: Application
    Filed: February 18, 2005
    Publication date: August 23, 2007
    Inventors: Takeshi Kanazawa, Naoto Oka, Toyoki Kawahara, Hirokazu Kobayashi
  • Publication number: 20060293061
    Abstract: A radio communication device includes a reception unit for receiving a route request message from another radio communication device, a route control message processing unit for judging whether the received route request message is addressed to itself or not, a route request message management unit for deciding a delay amount for delaying response transmission or relay forwarding with regard to the route request message according to an operating state of the radio communication device when the route request message is not addressed to itself, and a delay processing unit which performs response transmission or relay forwarding to the route request message when the delay amount time has expired. Thus, a route selected giving preference to radio communication devices having a preferable operating state can be obtained.
    Type: Application
    Filed: March 15, 2005
    Publication date: December 28, 2006
    Inventors: Hirokazu Kobayashi, Toyoki Kawahara, Takeshi Kanazawa, Naoto Oka
  • Publication number: 20060146708
    Abstract: Band control for every flow is made, and at the same time priority control is realized by a simple hardware configuration. A flow identification section 1 identifies the flow, to which each packet belongs. Flow identification information is notified to a flow setting information storage section 2. Based on such information, flow setting information is notified to a polishing section 3. In the polishing section, a rate measurement section 31 measures an arrival rate of the packet, and based on this arrival rate, a rate calculation section 32 calculates an arrival rate for the flow, to which the packet belongs. Then, a band comparative determination section 33 compares this arrival rate for the flow to information such as the minimum guaranteed band and the upper limit band previously set for this flow, and performs class setting for the flow for every packet. Flow identification information for each flow is stored in a schedule storage section 42 by class.
    Type: Application
    Filed: February 26, 2004
    Publication date: July 6, 2006
    Applicant: Matsushita Electric Industrial Co., Ltd
    Inventor: Takeshi Kanazawa
  • Publication number: 20050163138
    Abstract: Inputter 191 sorts and accommodates packets in a plurality of containers 193. Containers 193 contain the packets in a plurality queues 1931 in and from which the packets can be written and read. Read controller 194 has read queue information generator 1941 that, on a per container basis, generates read queue information indicating the queues that have the packets written therein, priority determiner 1940 that, on a per queue basis, determines the priorities in the reading of the packets, and read queue determiner 1942 that, on a per container basis, determines the queue to read the packets from with reference to the write queue information and the priorities.
    Type: Application
    Filed: May 30, 2003
    Publication date: July 28, 2005
    Inventor: Takeshi Kanazawa
  • Patent number: 4400417
    Abstract: An aluminum die-cast base of the type having a sleeve-like extension is provided with anchor posts on which clips are fitted. The clips are adapted to resiliently deform for insertion into the attaching holes in a panel and then expand to grip the panel for thereby securing the base to the panel.
    Type: Grant
    Filed: April 20, 1982
    Date of Patent: August 23, 1983
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Hiroshi Kanamori, Takeshi Kanazawa