Patents by Inventor Toyota Nishi

Toyota Nishi 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).

  • Patent number: 7401357
    Abstract: An authentication system comprises a register image storage unit, which stores a pre-registered register image of a mobile terminal user; a communication control unit, which receives a moving image of the user transmitted from the mobile terminal; and an authentication processing unit, which authenticates the user by checking the moving image received by the communication control unit against the register image stored in the register image storage unit.
    Type: Grant
    Filed: November 22, 2002
    Date of Patent: July 15, 2008
    Assignee: NTT DoCoMo, Inc.
    Inventors: Tooru Hasegawa, Toyota Nishi, Akira Kaiyama
  • Patent number: 6985730
    Abstract: A mobile communication control method is provided. In the method, when a home location register receives additional service execution unsupported information from a switch in a network in a roaming destination in response to transferring subscriber information, it is determined whether location registration of a mobile station is to be performed on the basis of at least one item of information on the additional service and activation information of the additional service that are managed by a service control apparatus, and execution of location registration is controlled on the basis of a result of the determination.
    Type: Grant
    Filed: August 5, 2002
    Date of Patent: January 10, 2006
    Assignee: NTT DoCoMo, Inc.
    Inventors: Toru Hasegawa, Toyota Nishi, Takeshi Sugiyama, Akira Kaiyama
  • Patent number: 6937859
    Abstract: A mobile communication service control system according to the present invention has a home location register 13 storing subscriber information, a switching unit 12 for sending a subscriber information inquiry signal 201 to the register 13, and a service control unit 14 for controlling a service provided for subscribers. The home location register 13 stores service information 309 necessary for a start of control of the service at the service control unit 14 and sends the service information 309 along with a response signal 308 to the subscriber information inquiry signal 201 to the switching unit 12. The switching unit 12 transfers the service information 309 received from the register 13, to the service control unit 14.
    Type: Grant
    Filed: December 14, 2001
    Date of Patent: August 30, 2005
    Assignee: NTT DoCoMo, Inc.
    Inventors: Tooru Hasegawa, Toyota Nishi, Akira Kaiyama, Takeshi Sugiyama, Hironari Kobayashi, Hiroshi Matsunaga, Kazuyuki Kozu
  • Publication number: 20030120916
    Abstract: An authentication system comprises a register image storage unit, which stores a pre-registered register image of a mobile terminal user; a communication control unit, which receives a moving image of the user transmitted from the mobile terminal; and an authentication processing unit, which authenticates the user by checking the moving image received by the communication control unit against the register image stored in the register image storage unit.
    Type: Application
    Filed: November 22, 2002
    Publication date: June 26, 2003
    Applicant: NTT DoCoMo, Inc
    Inventors: Tooru Hasegawa, Toyota Nishi, Akira Kaiyama
  • Publication number: 20030027575
    Abstract: A mobile communication control method is provided. In the method, when a home location register receives additional service execution unsupported information from a switch in a network in a roaming destination in response to transferring subscriber information, it is determined whether location registration of a mobile station is to be performed on the basis of at least one item of information on the additional service and activation information of the additional service that are managed by a service control apparatus, and execution of location registration is controlled on the basis of a result of the determination.
    Type: Application
    Filed: August 5, 2002
    Publication date: February 6, 2003
    Applicant: NTT DoCoMo, Inc.
    Inventors: Toru Hasegawa, Toyota Nishi, Takeshi Sugiyama, Akira Kaiyama
  • Publication number: 20020077100
    Abstract: A mobile communication service control system according to the present invention has a home location register 13 storing subscriber information, a switching unit 12 for sending a subscriber information inquiry signal 201 to the register 13, and a service control unit 14 for controlling a service provided for subscribers. The home location register 13 stores service information 309 necessary for a start of control of the service at the service control unit 14 and sends the service information 309 along with a response signal 308 to the subscriber information inquiry signal 201 to the switching unit 12. The switching unit 12 transfers the service information 309 received from the register 13, to the service control unit 14.
    Type: Application
    Filed: December 14, 2001
    Publication date: June 20, 2002
    Applicant: NTT DoCoMo, Inc.
    Inventors: Tooru Hasegawa, Toyota Nishi, Akira Kaiyama, Takeshi Sugiyama, Hironari Kobayashi, Hiroshi Matsunaga, Kazuyuki Kozu
  • Patent number: 5420850
    Abstract: A received signal of a control channel of each cell is despread by each spreading code in a correlation detector. The received level of the despread output in a window, including its peak, is measured in a level measuring part and an interference signal level outside the window is also measured. In a control part the difference or ratio between the measured received level and the interference signal level is obtained as a comparison signal for each spreading code, and the comparison signal is compared in terms of magnitude to thereby determine the visited cell of a mobile station.
    Type: Grant
    Filed: March 1, 1994
    Date of Patent: May 30, 1995
    Assignee: NTT Mobile Communications Network, Inc.
    Inventors: Narumi Umeda, Toyota Nishi, Akihiro Higashi