Patents by Inventor Satoru Inazawa

Satoru Inazawa 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/packet assembly and disassembly apparatus and network system
    Patent number: 6021134
    Abstract: A cell/packet assembly and disassembly apparatus is provided for efficiently connecting a line in a line switching system to an ATM network or a packet network, without causing congestion, to transmit and receive cells or packets therebetween. The cell/packet assembly and disassembly apparatus, upon detecting a call setting request outputted from a line switch board in response to a call originated from a terminal, starts cell assembly and cell disassembly of user information transmitted and received between a channel on a line in the line switching system corresponding to the call setting request and a virtual channel on the ATM network assigned to the channel.
    Type: Grant
    Filed: October 14, 1997
    Date of Patent: February 1, 2000
    Assignees: Hitachi, Ltd., Hitachi Communications Systems, Inc.
    Inventors: Masashi Hiraiwa, Satoru Inazawa, Tatsuo Mochinaga, Kenji Kawakita
  • Cell/ packet assembly and disassembly apparatus and network system
    Patent number: 5734653
    Abstract: A cell/packet assembly and disassembly apparatus is provided for efficiently connecting a line in a line switching system to an ATM network or a packet network, without causing congestion, to transmit and receive cells or packets therebetween. The cell/packet assembly and disassembly apparatus, upon detecting a call setting request outputted from a line switch board in response to a call originated from a terminal, starts cell assembly and cell disassembly of user information transmitted and received between a channel on a line in the line switching system corresponding to the call setting request and a virtual channel on the ATM network assigned to the channel.
    Type: Grant
    Filed: May 30, 1996
    Date of Patent: March 31, 1998
    Assignees: Hitachi, Ltd., Hitachi Communication Systems, Inc.
    Inventors: Masashi Hiraiwa, Satoru Inazawa, Tatsuo Mochinaga, Kenji Kawakita