Patents by Inventor Shoji Fuwa

Shoji Fuwa 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).

  • Method and apparatus for setting a signaling virtual channel for an ATM exchange system
    Patent number: 6510136
    Abstract: A signaling virtual channel (SVC) is established only when it is necessary so that a bandwidth reserved for a signaling channel for transmitting signaling information is usable for transmitting communication information. The SVC is established between a subscriber terminal and an asynchronous transfer mode (ATM) exchange system by selecting the virtual path identifier (VPI) and the virtual channel identifier (VCI) for signaling only when a request for a call connection is made by the subscriber terminal or only when a notification of reception of a call is sent to the subscriber terminal. A communication path between the subscriber terminal and the ATM exchange system is established for transmitting communication information by transmitting communication call setting information through the SVC. The SVC is released after an establishing operation of the communication path is completed.
    Type: Grant
    Filed: March 16, 1999
    Date of Patent: January 21, 2003
    Assignee: Fujitsu Limited
    Inventors: Makoto Tanaka, Shoji Fuwa, Fumiyasu Tanaka, Hiroaki Yamazaki, Atsushi Niwa, Takashi Nakashima