07623543 is referenced by 4 patents and cites 27 patents.

A network includes multiple nodes interconnected to form a ring topology. These nodes support data transmissions over the network using tokens. To send and receive data over the network, nodes may process control messages. A node can receive a token authorizing transmission on one of multiple data channels, generate a transmission control message identifying a destination node and the authorized data channel, and communicate the transmission control message for receipt by the destination node. The node can also transmit data on the authorized data channel after communicating the transmission control message and communicate the token to a next node.

Title
Token-controlled data transmissions in communication networks
Application Number
10/804550
Publication Number
7623543 (B2)
Application Date
March 19, 2004
Publication Date
November 24, 2009
Inventor
Hung ying Tyan
San Jose
CA, US
Richard R Rabbat
San Francisco
CA, US
Takeo Hamada
Cupertino
CA, US
Ching Fong Su
Milpitas
CA, US
Agent
Baker Botts L
Assignee
Fujitsu
JP
IPC
H04L 12/413
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