Patents by Inventor Kosuke Nobuyasu

Kosuke Nobuyasu 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: 6728264
    Abstract: A radio base station in a CDMA mobile communication system for allocating radio channels to mobile stations at a plurality of different bit rates. The base station including a storage part for storing a maximum number of radio channels that makes a signal-to-interference noise power ratio for each channel greater than a predetermined value. The maximum number having a value which changes in steps depending on a bit rate used for a call presently made. A control part for reading the maximum value stored in the storage part and allocating radio channels to the mobile stations in a range that does not exceed the maximum value.
    Type: Grant
    Filed: February 23, 1999
    Date of Patent: April 27, 2004
    Assignee: Fujitsu Limited
    Inventors: Yoshiaki Kumagai, Kosuke Nobuyasu
  • Publication number: 20040071138
    Abstract: A cell multiplexing apparatus comprising call monitors and multiplexers. The call monitors monitor a plurality of channels for their call setting status and select at least two channels for which the same cell may be assembled, i.e., for which the destination of the calls is the same. The multiplexers receive audio information or information already assembled in asynchronous transfer mode (ATM) cells from the channels selected by the call monitors, and disassemble and multiplex the received information for assembly into the payload of a new ATM cell.
    Type: Application
    Filed: October 8, 2003
    Publication date: April 15, 2004
    Applicant: Fujitsu Limited
    Inventors: Tomonobu Takashima, Takeshi Tanaka, Reiko Norizuki, Hidetoshi Toyofuku, Hideki Mase, Masanori Kajiwara, Kosuke Nobuyasu, Kenji Tanaka
  • Patent number: 6661796
    Abstract: A cell multiplexing apparatus including call monitors and multiplexers. The call monitors monitor a plurality of channels for their call setting status and select at least two channels for which the same cell may be assembled, i.e., for which the destination of the calls is the same. The multiplexers receive audio information or information already assembled in asynchronous transfer mode (ATM) cells from the channels selected by the call monitors, and disassemble and multiplex the received information for assembly into the payload of a new ATM cell.
    Type: Grant
    Filed: December 20, 1999
    Date of Patent: December 9, 2003
    Assignee: Fujitsu Limited
    Inventors: Tomonobu Takashima, Takeshi Tanaka, Reiko Norizuki, Hidetoshi Toyofuku, Hideki Mase, Masanori Kajiwara, Kosuke Nobuyasu, Kenji Tanaka
  • Patent number: 6633541
    Abstract: The present invention aims at providing an ascending transmission speed controlling method and a communication system in an ATM-PON (asynchronous transfer mode-passive optical network), in which ascending transmission speeds on the PON are dynamically allocated corresponding to actual transmission states of communication channels of a best effort type, to thereby effectively utilize respective bands.
    Type: Grant
    Filed: December 30, 1999
    Date of Patent: October 14, 2003
    Assignee: Fujitsu Limited
    Inventors: Toshiyuki Hijikata, Toshio Irie, Kosuke Nobuyasu, Yoshinori Matsunaga
  • Patent number: 6597673
    Abstract: Disclosed is a soft handoff control method in a CDMA mobile telecommunications system in which, when a mobile station is handed of to a wireless link with another base station, handoff to a prescribed wireless link is performed after wireless links are established between the mobile station and a plurality of base stations simultaneously. The method includes deciding, on the basis of the soft handoff rate of a base station, the number of soft handoff branches allocated to a mobile station residing in a cell that corresponds to the base station, and performing soft handoff based upon the number of soft handoff branches.
    Type: Grant
    Filed: June 16, 1998
    Date of Patent: July 22, 2003
    Assignee: Fujitsu Limited
    Inventors: Kosuke Nobuyasu, Atsushi Yamashita
  • Publication number: 20030117957
    Abstract: A cell multiplexing apparatus including call monitors and multiplexers. The call monitors monitor a plurality of channels for their call setting status and select at least two channels for their call setting status and select at least two channels for which the same cell may be assembled, i.e., for which the destination of the calls is the same. The multiplexers receive audio information or information already assembled in asynchronous transfer mode (ATM) cells from the channels selected by the call monitors, and disassemble and multiplex the received information for assembly into the payload of a new ATM cell.
    Type: Application
    Filed: February 3, 2003
    Publication date: June 26, 2003
    Applicant: Fujitsu Limited
    Inventors: Tomonobu Takashima, Takeshi Tanaka, Reiko Norizuki, Hidetoshi Toyofuku, Hideki Mase, Masanori Kajiwara, Kosuke Nobuyasu, Kenji Tanaka
  • Patent number: 6584070
    Abstract: A cell multiplexing apparatus including call monitors and multiplexers. The call monitors monitor a plurality of channels for their call setting status and select at least two channels for which the same cell may be assembled, i.e., for which the destination of the calls is the same. The multiplexers receive audio information or information already assembled in asynchronous transfer mode (ATM) cells from the channels selected by the call monitors, and disassemble and multiplex the received information for assembly into the payload of a new ATM cell.
    Type: Grant
    Filed: April 11, 1997
    Date of Patent: June 24, 2003
    Assignee: Fujitsu Limited
    Inventors: Tomonobu Takashima, Takeshi Tanaka, Reiko Norizuki, Hidetoshi Toyofuku, Hideki Mase, Masanori Kajiwara, Kosuke Nobuyasu, Kenji Tanaka
  • Patent number: 6445683
    Abstract: A base-station host system achieves high-speed routing to reduce a burden on a controller which carries out a routing process, and receives a cell containing a plurality of packets (an ATM cell of AAL Type 2) from a base station. A cell containing a plurality of packets is transmitted from the base station to the base-station host system. A packet extracting unit extracts the packets from the received cell. A cell generating unit generates an internally processable cell based on information carried by the payload of a packet. A switch unit switches internally processable cells depending on routes thereof. For reverse communications, internally processable cells are sent from the switch unit to a packet generating unit. The packet generating unit generates packets based on information carried by the payloads of the internally processable cells.
    Type: Grant
    Filed: May 20, 1998
    Date of Patent: September 3, 2002
    Assignee: Fujitsu Limited
    Inventors: Kosuke Nobuyasu, Tatsuru Nakagaki
  • Publication number: 20020097465
    Abstract: An optical network which can exhibit a protection function at the time of an abnormality in communication and which is effective in an optical network (PON) comprised of a mix of single configuration equipment and duplex configuration equipment, provided with transmission path switching units, individually assigning different transmission paths defined in a logical layer higher than a physical layer forming the optical transmission system to a working side and standby side of the multiplex configuration equipment, and having a subscriber side transmission path converting unit for converting paths to unique transmission paths assigned to the downstream side and an office side transmission path converting unit for converting paths to unique transmission paths assigned to the upstream side.
    Type: Application
    Filed: October 1, 2001
    Publication date: July 25, 2002
    Inventor: Kosuke Nobuyasu
  • Patent number: 6324384
    Abstract: Call origination processing in a wireless local loop system, wherein a dial tone generating unit and a control unit thereof are provided in a subscriber terminal located in an access network between a user terminal and a local exchange and wherein a path connection forming unit, a VIP call processing unit, a pre-connected channel control unit and a radio channel establishing unit are provied in an access control apparatus located in the access network. By this, obstacles are prevented from occurring in the service of a VIP call.
    Type: Grant
    Filed: June 19, 1997
    Date of Patent: November 27, 2001
    Assignee: Fujitsu Limited
    Inventors: Kosuke Nobuyasu, Ryoichi Ishibashi
  • Patent number: 5509007
    Abstract: A cell multiplexing apparatus including call monitors and multiplexers. The call monitors monitor a plurality of channels for their call setting status and select at least two channels for which the same cell may be assembled, i.e., for which the destination of the calls is the same. The multiplexers receive audio information or information already assembled in asynchronous transfer mode (ATM) cells from the channels selected by the call monitors, and disassemble and multiplex the received information for assembly into the payload of a new ATM cell.
    Type: Grant
    Filed: January 13, 1993
    Date of Patent: April 16, 1996
    Assignee: Fujitsu Limited
    Inventors: Tomonobu Takashima, Takeshi Tanaka, Reiko Norizuki, Hidetoshi Toyofuku, Hideki Mase, Masanori Kajiwara, Kosuke Nobuyasu, Kenji Tanaka