Patents by Inventor Hidetoshi Toyofuku

Hidetoshi Toyofuku 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).

  • Cell multiplexing apparatus handling multiple items of information
    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
  • Cell multiplexing apparatus handling multiple items of information
    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
  • Cell multiplexing apparatus handling multiple items of information
    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
  • Cell multiplexing apparatus handling multiple items of information
    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
  • Cell multiplexing apparatus handling multiple items of information
    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
  • Delay distortion suppressing system for ATM communication system
    Patent number: 5301193
    Abstract: A delay distortion suppressing system is for use in an asynchronous transfer mode communication system which includes at least a transmitting end and a receiving end which are connected via transmission paths. The delay distortion suppressing system includes a first part provided in the transmitting end for transmitting information in the form of cells in an asynchronous transfer mode, a second part provided in the receiving end for delaying each cell which is received via a transmission path by a predetermined delay time relative to a reference point, a third part provided in the receiving end for varying the reference point depending on an arrival time of the cell which is received at the receiving end via the transmission path, so that a delay distortion of the cells is suppressed, and a fourth part including a decoding part for decoding the cells output from the second part.
    Type: Grant
    Filed: November 14, 1991
    Date of Patent: April 5, 1994
    Assignee: Fujitsu Limited
    Inventors: Hidetoshi Toyofuku, Masanori Kajiwara, Takeshi Tanaka, Hideki Mase, Atsuyuki Mukai, Tomonobu Takashima