1
Hiroshi Miyake, Satoshi Kakuma, Shuji Yoshimura, Naoki Aihara, Naoki Fukuda: Virtual identifier conversion system. Fujitsu, Staas & Halsey, December 14, 1993: US05271010 (115 worldwide citation)

A virtual channel converter converts a virtual path identifier and a virtual channel identifier, e.g. in a twenty-eight (28) bit frame, attached to the header part of an incoming ATM cell on an input highway to an ATM switcher to identifiers to be attached to an outgoing ATM cell on an output highwa ...


2
Masami Murayama, Atsuhisa Takahashi, Satoshi Kakuma, Shuji Yoshimura: Signaling cell switching system. Fujitsu, Staas & Halsey, February 9, 1993: US05185743 (98 worldwide citation)

An index value output circuit outputs an index value in response to a VCI added to the first signaling cell outputted from a terminal unit. A switching data output circuit outputs switching data for determining a path for signaling cells, based on the index value. Hence, by revising the index value ...


3
Satoshi Kakuma, Shuji Yoshimura, Shiro Uriu, Naoki Fukuda: Broadband ISDN remote multiplexer. Fujitsu, April 2, 1996: US05504742 (89 worldwide citation)

A broadband ISDN remote multiplexer, which is constructed by separating a subscriber line interfacing section from an ATM exchange and installing the same at a remote location connected via a high-speed transmission line, comprises: a first interface unit for carrying out conversion between a transm ...


4
Yoshihiro Uchida, Satoshi Kakuma, Shuji Yoshimura, Yasuhiro Aso, Masami Murayama: Controller for distributing loads among call processors. Fujitsu, Staas & Halsey, August 24, 1993: US05239539 (87 worldwide citation)

A main processor assigns originated-call processings to each of a plurality of call processors in the sequence of call originations according to the first principle of this invention. A switching state controller collects usage information about a plurality of buffers composing the switching network ...


5
Satoshi Kakuma, Shuji Yoshimura, Kazuo Hajikano, Masami Murayama, Yuzo Okuyama: Procedure for switching-over systems. Fujitsu, January 30, 1996: US05488606 (51 worldwide citation)

An ATM (asynchronous transfer mode) exchange has a buffer for system #0 and a buffer for system #1 providing P-MEM's for storing data including an A bit and for a VCI/VPI currently in use is set to "1'. Upon detecting a switchover between the systems, every B bit is reset to "0". When the exchange w ...


6
Shiro Uriu, Satoshi Kakuma, Shuji Yoshimura: Path route test apparatus for use in an ATM transmission system. Fujitsu, April 18, 1995: US05408461 (51 worldwide citation)

An ATM transmission system transmits cell-formatted data in an asynchronous transfer mode, and aims at conducting an online path route test in the system. If one path route only is established in the system, then one or more valid cell detecting units for detecting, upon receipt of a cell enable sig ...


7
Naoyuki Izawa, Shuji Yoshimura, Satoshi Kakuma: Transmission test system in a broadband ISDN. Fujitsu, Staas & Halsey, October 5, 1993: US05251204 (51 worldwide citation)

The present invention relates to a transmission line test method in the broadband ISDN for assembling an ATM formatted cell into a frame and sending it in the synchronous optical network (SONET) formatted transmission line as a protocol of an optical fiber communication network. First, test data are ...


8
Shuji Yoshimura, Satoshi Kakuma, Naoki Aihara, Yasuhiro Aso, Masami Murayama: Supervision control system. Fujitsu, Staas & Halsey, February 28, 1995: US05394396 (50 worldwide citation)

A supervision control system for an ATM cell switching system counts the number of cells transmitted from a subscriber in a predetermined duration unit, attaches a sign to the cells when the counted value exceeds a predetermined value, and discards the cells to which the sign is attached when a buff ...


9
Yoshihiro Uchida, Satoshi Kakuma, Naoyuki Izawa, Yasuhiro Aso, Shuji Yoshimura, Masami Murayama: Apparatus for testing ATM channels. Fujitsu, Staas & Halsey, May 17, 1994: US05313453 (47 worldwide citation)

A first form of an ATM channel testing apparatus tests an ATM channel by having a test cell detector in each switch to detect whether or not the switch appropriately switches a test cell generated by a test cell generating trunk. A second form of an ATM channel testing apparatus easily tests an ATM ...


10
Shuji Yoshimura, Satoshi Kakuma, Shiro Uriu, Naoyuki Izawa: In-service activator for a broadband exchanger. Fujitsu, Staas & Halsey, March 15, 1994: US05295134 (43 worldwide citation)

An in-service activator for a broadband exchanger has a dual system structure, in which a first system and a second system form a dual pair. The first system and the second system in the dual pair each has at least one [1] channel converter and a switcher. A channel converter stores channel setting ...