Patents by Inventor Koki Yamagata

Koki Yamagata 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).

  • Base station device
    Patent number: 9674641
    Abstract: A base station device uses a first card as an M2M card, second cards as general cards, and a third card as a spare card from among call process cards included in a signal processing unit. A call control unit allocates, to the M2M card, a call that is received from an M2M terminal and in which the service type determined by a service type determination unit is an M2M service. Furthermore, the call control unit allocates, to a general card, a call that is received from a general terminal and in which the service type determined by service type determination unit is a general service.
    Type: Grant
    Filed: March 29, 2016
    Date of Patent: June 6, 2017
    Assignee: FUJITSU LIMITED
    Inventors: Takahiro Suzuki, Koki Yamagata, Fusako Ishino, Hiroyasu Nakagawa, Noriyoshi Takahashi, Yuuitsu Ogata
  • BASE STATION DEVICE
    Publication number: 20160337782
    Abstract: A base station device uses a first card as an M2M card, second cards as general cards, and a third card as a spare card from among call process cards included in a signal processing unit. A call control unit allocates, to the M2M card, a call that is received from an M2M terminal and in which the service type determined by a service type determination unit is an M2M service. Furthermore, the call control unit allocates, to a general card, a call that is received from a general terminal and in which the service type determined by service type determination unit is a general service.
    Type: Application
    Filed: March 29, 2016
    Publication date: November 17, 2016
    Applicant: FUJITSU LIMITED
    Inventors: Takahiro Suzuki, Koki Yamagata, Fusako Ishino, Hiroyasu Nakagawa, Noriyoshi Takahashi, Yuuitsu OGATA
  • Interrupt control method for controlling an interrupt from a peripheral device to a processor
    Patent number: 6002877
    Abstract: A method for controlling an interrupt from a peripheral device to a processor, the peripheral device including at least an interrupt control unit, an interrupt request level holding unit, and an interrupt vector holding unit, which includes the steps of: a) updating the contents of the interrupt request level holding unit in accordance with commands in a software sent from an external device, for example, a subprocessor; b) updating the contents of the interrupt vector holding unit in accordance with commands in the software sent from the external device; c) reading an interrupt request level from the interrupt request level holding unit to the interrupt control unit; d) issuing the interrupt request level from the interrupt control unit to the processor when the peripheral device performs the interrupt operation; e) performing various processes and asserting the results of the signal processes from the processor to the peripheral device; f) reading an interrupt vector from the interrupt vector holding unit t
    Type: Grant
    Filed: August 4, 1997
    Date of Patent: December 14, 1999
    Assignee: Fujitsu Limited
    Inventor: Koki Yamagata