Patents by Inventor Tomoichi Ebata

Tomoichi Ebata 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: 20080098068
    Abstract: A technique for performing message communications while assigning a space and respective time periods or time points at present, in past and in future is disclosed. A space-time object intercepts a message. Alternatively, this object per se executes the processing for immediately transmitting a message to a target object under management with relevancy thereto, for retaining the message by a future time point assigned, or for preparing and sending a message for searching logs in the past, thereby to realize the space-time communications.
    Type: Application
    Filed: May 20, 2004
    Publication date: April 24, 2008
    Inventor: Tomoichi Ebata
  • Publication number: 20080057951
    Abstract: A sender of a message can transmit a message to an unspecified user merely by specifying a condition of space without specifying a recipient of the message, using an information processing terminal transmitting a message not with a user address to specify a user but with an area address (a condition of space) to specify an area within an electric wave reachable range of a radio base station; and a server converting the area address to a user address which specifies a PHS terminal currently located in the area represented by said area address and transmitting the message with a converted address to a switching equipment.
    Type: Application
    Filed: October 22, 2007
    Publication date: March 6, 2008
    Inventors: Emiko Kobayashi, Tomoichi Ebata, Minoru Koizumi, Katsumi Hanashima
  • Patent number: 7292851
    Abstract: A sender of a message can transmit a message to an unspecified user merely by specifying a condition of space without specifying a recipient of the message, using an information processing terminal transmitting a message not with a user address to specify a user but with an area address (a condition of space) to specify an area within an electric wave reachable range of a radio base station; and a server converting the area address to a user address which specifies a PHS terminal currently located in the area represented by said area address and transmitting the message with a converted address to a switching equipment.
    Type: Grant
    Filed: January 9, 2006
    Date of Patent: November 6, 2007
    Assignee: Hitachi, Ltd.
    Inventors: Emiko Kobayashi, Tomoichi Ebata, Minoru Koizumi, Katsumi Hanashima
  • Publication number: 20070050812
    Abstract: A data distribution control system is provided, to which a terminal owned by a user, a plurality of computers for transmitting/receiving data, and a control apparatus for controlling data transmitted/received between the computers and the terminal are connected; in which the terminal-transmits first data to the control apparatus; when the control apparatus receives the first data, the control apparatus selects such a computer related to the terminal from the plurality of computers based upon the first data and-second data which includes attribute information previously registered in the control apparatus; the control apparatus transmits third data which contains positional information of the terminal and attribute information of the user with respect to the selected computer; and when the selected computer receives the third data, the selected computer transmits fourth data in order to call the user with respect to the terminal.
    Type: Application
    Filed: July 28, 2006
    Publication date: March 1, 2007
    Inventors: Tomoichi Ebata, Sadayuki Kina, Tomihiro Miwa, Narihiro Omoto
  • Patent number: 7142512
    Abstract: According to the invention, techniques for controlling the quality of each communication service in a network automatically according to measured information of network traffic are provided. In a representative embodiment, a network measurement controlling system is provided according to the present invention, which comprises a control server, a router, and a meter connected to a network. The meter receives packets from a network and measures the number of packets, and the like, according to preset measurement rules, and transfers measured data to a control server. The control server holds control rules including its control policy for assuring the quality of each communication service, analyzes measured data transferred from the meter, and transmits control commands. The router controls the QoS automatically in real time according to the status of the network by receiving control commands and controlling communication service quality.
    Type: Grant
    Filed: May 15, 2000
    Date of Patent: November 28, 2006
    Assignee: Hitachi, Ltd.
    Inventors: Emiko Kobayashi, Tomoichi Ebata, Minoru Koizumi, Chiho Kitahara
  • Patent number: 7076247
    Abstract: A sender of a message can transmit a message to an unspecified user merely by specifying a condition of space without specifying a recipient of the message, using an information processing terminal transmitting a message not with a user address to specify a user but with an area address (a condition of space) to specify an area within an electric wave reachable range of a radio base station; and a server converting the area address to a user address which specifies a PHS terminal currently located in the area represented by said area address and transmitting the message with a converted address to a switching equipment.
    Type: Grant
    Filed: August 5, 2002
    Date of Patent: July 11, 2006
    Assignee: Hitachi, Ltd.
    Inventors: Emiko Kobayashi, Tomoichi Ebata, Minoru Koizumi, Katsumi Hanashima
  • Publication number: 20060116141
    Abstract: A sender of a message can transmit a message to an unspecified user merely by specifying a condition of space without specifying a recipient of the message, using an information processing terminal transmitting a message not with a user address to specify a user but with an area address (a condition of space) to specify an area within an electric wave reachable range of a radio base station; and a server converting the area address to a user address which specifies a PHS terminal currently located in the area represented by said area address and transmitting the message with a converted address to a switching equipment.
    Type: Application
    Filed: January 9, 2006
    Publication date: June 1, 2006
    Inventors: Emiko Kobayashi, Tomoichi Ebata, Minoru Koizumi, Katsumi Hanashima
  • Publication number: 20050286435
    Abstract: A remote management system includes a managed device and a management device connected via a network, where events occurring in the managed device are managed via an event system scheme which can be adapted to a number of managed devices. A management module in the managed device detects an event occurring in the managed device and locates one or more enquiry destinations corresponding to the event, in an event enquiry destination table. An enquiry destination is assigned in cases where one or more enquiry destinations corresponding to the event identifier have not been defined in the event enquiry destination table. The management module makes an enquiry by sending an identifier for the event to the management device. Enquiries are made simultaneously or consecutively to the one or more enquiry destinations.
    Type: Application
    Filed: October 14, 2004
    Publication date: December 29, 2005
    Inventors: Yukio Ogawa, Tomoichi Ebata, Eiji Ohira
  • Patent number: 6973485
    Abstract: In an internet having a server for providing service, a client for receiving the service, plural proxy servers for standing proxy for an access to the server done by the client, and a proxy server selecting server for noticing an IP (Internet Protocol) corresponding to a domain name of the client in response to an inquiry with the domain name added thereon, the proxy server selecting server receives a request message with the domain name of the server for providing the target service from the client. Then, the proxy server selecting server notifies the client of the IP address of the most approximate server to the client in place of the IP address of the server, based on the physical/logical location information, and if necessary, the periodically obtained load information of the proxy servers. The client recognizes the proxy server of the IP address given thereto as the server for providing the target service and then makes access to the proxy server.
    Type: Grant
    Filed: October 30, 2002
    Date of Patent: December 6, 2005
    Assignee: Hitachi, Ltd.
    Inventors: Tomoichi Ebata, Hiromichi Ito, Masato Saito, Yoshihiro Kamata
  • Publication number: 20050181798
    Abstract: One objective of the present invention is to determine a location for a relay terminal in a radio network, without preparatory surveying a radio status, and to arrange the relay terminal at the location. Another objective is to provide a method for retrieving the arranged relay terminal. When a relay terminal is to be arranged, the relay terminal transmits a survey packet to examine the quality of communication with a communication terminal or other relay terminal. Wherer a location is appropriate, the relay terminal gives a notice. The arranged terminal relays communication. Further, when the relay terminal is to be retrieved, the relay terminal carried by a user transmits a retrieval packet to the arranged relay terminal, which notifies the user of its presence by light, sounds, or returning a packet. In this manner, a single relay terminal provides functions of arrangement, relay and retrieval.
    Type: Application
    Filed: January 21, 2005
    Publication date: August 18, 2005
    Inventors: Kazuya Monden, Tomoichi Ebata, Susumu Matsui, Tatsuaki Osafune
  • Publication number: 20040107126
    Abstract: A key of a building and a tool may be required for responding to various incidents that occur in targets to be processed. The maintenance engineer closest to the target mat not carry the key and tool. Optimum selection of the maintenance engineer cannot be achieved with current locations of the maintenance engineer candidates and of the target. Location information on a key and tool required for processing an incident that occurs in a target to be processed is managed. Additionally, when at least one maintenance engineer who processes the incident is selected, in accordance with a predetermined rule that location information on the maintenance engineer candidates, on the target, and on the key and tool required for the process request should be considered to select at least one maintenance engineer who processes the incident, the maintenance engineer is selected.
    Type: Application
    Filed: October 1, 2003
    Publication date: June 3, 2004
    Applicant: Hitachi, Ltd.
    Inventors: Kenji Kataoka, Toshiichirou Sasaki, Tomoichi Ebata, Minoru Koizumi
  • Publication number: 20040064541
    Abstract: A network system having a plurality of interconnected networks each having a policy server. The policy server sets a quality-guaranteed path in the network according to a policy held in the policy server. The policy server includes a policy holding unit to hold a policy defining a quality that can be guaranteed in its own network, a policy publicizing unit to make public the policy held in the policy holding unit to the policy servers of other networks, a guaranteed quality calculation unit to calculate a quality that can be guaranteed for the path between the local network and the other network, and a quality-guaranteed path setting unit to provide a quality-guaranteed path.
    Type: Application
    Filed: October 1, 2003
    Publication date: April 1, 2004
    Inventors: Tomoichi Ebata, Shigeru Miyake, Masatoshi Takihiro, Osamu Takada, Minoru Koizumi, Yoshiyuki Kurosaki, Toshiaki Hirata, Koji Tsukada
  • Patent number: 6708209
    Abstract: A network system having a plurality of interconnected networks each having a policy server. The policy server sets a quality-guaranteed path in the network according to a policy held in the policy server.
    Type: Grant
    Filed: March 8, 2000
    Date of Patent: March 16, 2004
    Assignee: Hitachi, Ltd.
    Inventors: Tomoichi Ebata, Shigeru Miyake, Masatoshi Takihiro, Osamu Takada, Minoru Koizumi, Yoshiyuki Kurosaki, Toshiaki Hirata, Koji Tsukada
  • Patent number: 6693533
    Abstract: In order to allow efficient use of bandwidth in communication paths in a surveillance system, the surveillance system has an operation unit which assigns fixed bandwidths to each of the communications taking place between camera nodes, which transfer image data at a uniform rate, and monitor nodes. A fixed bandwidth is assigned to, all communications taking place between the operation unit and sensor nodes, which generate alarm information at a non-uniform rate. If there is an increase in network traffic, bandwidth allocations, for communication between the camera nodes and the monitor nodes are reassigned so that bandwidth for these communications is reduced. The camera nodes use the bandwidth assigned to the camera nodes to transfer image data. The sensor nodes transfer alarm information using any bandwidth.
    Type: Grant
    Filed: December 13, 2002
    Date of Patent: February 17, 2004
    Assignee: Hitachi, Ltd.
    Inventors: Tomoichi Ebata, Chiho Kitahara, Minoru Koizumi, Toshiichiro Sasaki, Yoshiaki Adachi
  • Publication number: 20030095042
    Abstract: In order to allow efficient use of bandwidth in communication paths in a surveillance system, the surveillance system has an operation unit which assigns fixed bandwidths to each of the communications taking place between camera nodes, which transfer image data at a uniform rate, and monitor nodes. A fixed bandwidth is assigned to, all communications taking place between the operation unit and sensor nodes, which generate alarm information at a non-uniform rate. If there is an increase in network traffic, bandwidth allocations, for communication between the camera nodes and the monitor nodes are reassigned so that bandwidth for these communications is reduced. The camera nodes use the bandwidth assigned to the camera nodes to transfer image data. The sensor nodes transfer alarm information using any bandwidth.
    Type: Application
    Filed: December 13, 2002
    Publication date: May 22, 2003
    Inventors: Tomoichi Ebata, Chiho Kitahara, Minoru Koizumi, Toshiichiro Sasaki, Yoshiaki Adachi
  • Publication number: 20030061282
    Abstract: In an internet having a server for providing service, a client for receiving the service, plural proxy servers for standing proxy for an access to the server done by the client, and a proxy server selecting server for noticing an IP (Internet Protocol) corresponding to a domain name of the client in response to an inquiry with the domain name added thereon, the proxy server selecting server receives a request message with the domain name of the server for providing the target service from the client. Then, the proxy server selecting server notifies the client of the IP address of the most approximate server to the client in place of the IP address of the server, based on the physical/logical location information, and if necessary, the periodically obtained load information of the proxy servers. The client recognizes the proxy server of the IP address given thereto as the server for providing the target service and then makes access to the proxy server.
    Type: Application
    Filed: October 30, 2002
    Publication date: March 27, 2003
    Inventors: Tomoichi Ebata, Hiromichi Ito, Masato Saito, Yoshihiro Kamata
  • Publication number: 20030041035
    Abstract: According to the present invention, when electronic money is sent from a given network to another network, a money change apparatus performs a money change process to change electronic money current on the given network into electronic money current on another network, and therefore when a user of the given network uses a settling process, by managing this money change process, it is possible to manage the interchange of electronic money between each of the users of the given network and each of the users of another network without affecting the working environment of electronic commerce. Electronic money current on LAN20 is referred to as local electronic money current only on the network.
    Type: Application
    Filed: October 15, 2002
    Publication date: February 27, 2003
    Inventors: Tomoichi Ebata, Hiromichi Ito, Masato Saito, Yoshihiro Kamata, Hiroshi Yamada
  • Patent number: 6513061
    Abstract: In an internet having a server for providing service, a client for receiving the service, plural proxy servers for standing proxy for an access to the server done by the client, and a proxy server selecting server for noticing an IP (Internet Protocol) corresponding to a domain name of the client in response to an inquiry with the domain name added thereon, the proxy sever selecting server receives a request message with the domain name of the server for providing the target service from the client. Then, the proxy server selecting server notifies the client of the IP address of the most approximate server to the client in place of the IP address of the server, based on the physical/logical location information, and if necessary, the periodically obtained load information of the proxy servers. The client recognizes the proxy server of the IP address given thereto as the server for providing the target service and then makes access to the proxy server.
    Type: Grant
    Filed: October 6, 1998
    Date of Patent: January 28, 2003
    Assignee: Hitachi, Ltd.
    Inventors: Tomoichi Ebata, Hiromichi Ito, Masato Saito, Yoshihiro Kamata
  • Patent number: 6501377
    Abstract: In order to allow efficient use of bandwidth in communication paths in a surveillance system, the surveillance system has an operation unit which assigns fixed bandwidths to each of the communications taking place between camera nodes, which transfer image data at a uniform rate, and monitor nodes. A fixed bandwidth is assigned to, all communications taking place between the operation unit and sensor nodes, which generate alarm information at a non-uniform rate. If there is an increase in network traffic, bandwidth allocations, for communication between the camera nodes and the monitor nodes are reassigned so that bandwidth for these communications is reduced. The camera nodes use the bandwidth assigned to the camera nodes to transfer image data. The sensor nodes transfer alarm information using any bandwidth.
    Type: Grant
    Filed: September 6, 2001
    Date of Patent: December 31, 2002
    Assignee: Hitachi, Ltd.
    Inventors: Tomoichi Ebata, Chiho Kitahara, Minoru Koizumi, Toshiichiro Sasaki, Yoshiaki Adachi
  • Publication number: 20020193109
    Abstract: A sender of a message can transmit a message to an unspecified user merely by specifying a condition of space without specifying a recipient of the message, using an information processing terminal transmitting a message not with a user address to specify a user but with an area address (a condition of space) to specify an area within an electric wave reachable range of a radio base station; and a server converting the area address to a user address which specifies a PHS terminal currently located in the area represented by said area address and transmitting the message with a converted address to a switching equipment.
    Type: Application
    Filed: August 5, 2002
    Publication date: December 19, 2002
    Inventors: Emiko Kobayashi, Tomoichi Ebata, Minoru Koizumi, Katsumi Hanashima