1
Hajime Abe, Kazuho Miki, Noboru Endo, Akihiko Takase, Yoshito Sakurai: Packet switching network, packet switching equipment, and network management equipment. Hitachi, Sofer & Haroun, January 28, 2003: US06512745 (187 worldwide citation)

This invention provides a network management equipment and a packet switching equipment which eliminate a connection setup delay time, reduce a delay and a delay variation involved in data transfer, and effectively perform connectionless data flow processing in a large data network. The network is d ...


2
Hajime Abe, Kazuho Miki, Noboru Endo, Akihiko Takase, Yoshito Sakurai: Packet switching network, packet switching equipment and network management equipment. Hitachi, Sofer & Haroun, May 16, 2006: US07046630 (151 worldwide citation)

This invention provides a network management equipment and a packet switching equipment which eliminate a connection setup delay time, reduce a delay and a delay variation involved in data transfer, and effectively perform connectionless data flow processing in a large data network. The network is d ...


3
Isao Fukuta, Kenji Kawakita, Jiro Kashio, Yutaka Torii, Shinobu Gohara, Noboru Endo: Packet congestion control method and packet switching equipment. Hitachi, Antonelli Terry Stout & Kraus, February 18, 1992: US05090011 (147 worldwide citation)

A packet switching equipment housing therein a plurality of pairs of an input line and an output line is provided with a monitor circuit for monitoring a packet congestion state in the packet switching equipment for each output line. When a packet congestion is detected in association with either on ...


4
Hiroshi Kuwahara, Mineo Ogino, Takahiko Kozaki, Noboru Endo, Yoshito Sakurai: Cell switching system of asynchronous transfer mode. Hitachi, Link Laboratory, Antonelli Terry Stout & Kraus, August 7, 1990: US04947388 (117 worldwide citation)

A fixed-length packet switching system, in which fixed-length packets (cells) each composed of a header portion and a data portion are received from a plurality of input lines, and after conversion of the header portions, the received packets are transmitted onto selected ones of output lines design ...


5
Itaru Mimura, Mitsuru Nagasaka, Noboru Endo: Method of monitoring quality of communication for each flow. Hitachi, Mattingly Stanger Malur & Brundidge P C, March 28, 2006: US07020085 (94 worldwide citation)

A packet switch identifies a communication flow carried across an IP network, observes the communication flow, and acquires statistics data thereof, such as the number of packets that passed through the switch, the number of discarded packets, time at which the packets arrived at the switch, and tim ...


6
Takahiko Kozaki, Masahiro Takatori, Noboru Endo, Akihiko Takase, Yozo Oguri: Switching system having means for congestion control by monitoring packets in a shared buffer and by suppressing the reading of packets from input buffers. Hitachi, Antonelli Terry Stout & Kraus, November 17, 1998: US05838677 (91 worldwide citation)

In a switching system connected between a plurality of input lines and a plurality of output lines, destinations of a plurality of cells incoming from the plurality of input lines are monitored to detect an output line in a congestion state. Upon detection of the output line in an congestion state, ...


7
Kenichi Sakamoto, Kazuyoshi Hoshino, Koji Wakayama, Shiro Tanabe, Noboru Endo: VPN composing method, interwork router, packet communication method, data communication apparatus, and packet relaying apparatus. Hitachi, Antonelli Terry Stout & Kraus, October 14, 2003: US06633571 (84 worldwide citation)

A method serves to compose a VPN (Virtual Private Network) over a plurality networks each of which is managed by different Internet Service Providers (ISP). When a packet with a first capsule header used for composing a VPN in a first ISP network is transmitted to a second ISP network, a route for o ...


8
Akihiko Takase, Shiro Tanabe, Noboru Endo, Ryoji Takeyari, Yusuke Mishina, Toshiya Oouchi, Junichirou Yanagi: Multicast communications method. Hitachi, Fay Sharpe Beall Fagan Minnich & McKee, March 18, 1997: US05612959 (82 worldwide citation)

Distributed LANs are connected to a wide area network through terminal adapters, which are interconnected by virtual circuits to form a logical bus network. Each terminal adapter copies cells received through the virtual circuit that is allocated for multicasting, and transfers the copied cells to t ...


9
Noboru Endo, Takahiko Kozaki, Hiroshi Kuwahara, Kenichi Ohtsuki, Shinobu Gohara: Method and system for packet exchange. Hitachi, Antonelli Terry Stout & Kraus, October 16, 1990: US04964119 (70 worldwide citation)

In a packet exchange system for preforming packet exchange by setting logical channels, individual input packets are assigned with information indicative of input sequence of the individual input packets counted in each call and the input sequence information is stored. Each time each packet is deli ...


10
Takahiko Kozaki, Kenichi Asano, Mineo Ogino, Eiichi Amada, Noboru Endo, Yoshito Sakurai: Switching system. Hitachi, Hitachi VLSI Engineering Corporation, Link Laboratory, Fay Sharpe Beall Fagan Minnich & McKee, February 2, 1993: US05184346 (58 worldwide citation)

A switching system exchanges communication information as fixed length cells between a plurality of incoming and outgoing highways. The fixed length cells each have a plurality of data portions with one data portion designated as a header portion for containing switching information. An address gene ...