Patents by Inventor Galen Sasaki

Galen Sasaki 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).

  • Multichannel ring and star networks with limited channel conversion
    Patent number: 7606180
    Abstract: A ring communication network according to an embodiment of the present invention includes a plurality of nodes in which a single one of the nodes is configured for full channel conversion and the remaining nodes, other than the single node, are configured for no channel conversion. Links with no more than W channels couple the nodes. The ring communication network may include N nodes and links connecting the nodes for carrying data in W channels such that N?2 log2 W?1, where W is a power of 2. Each of the N nodes includes switches connected such that each channel of a first one of the links adjacent to any one of the N nodes can be switched to no more than W?1 channels of another one of the links adjacent to any one node.
    Type: Grant
    Filed: May 16, 2005
    Date of Patent: October 20, 2009
    Assignee: Tellabs Operations, Inc.
    Inventors: Rajiv Ramaswami, Galen Sasaki
  • Multichannel ring and star networks with limited channel conversion
    Publication number: 20050286442
    Abstract: A ring communication network comprising a plurality of nodes in which a single one of the nodes is configured for full channel conversion and the remaining nodes, other than the single node, are configured for no channel conversion. Links comprising no more than W channels couple the nodes. The ring communication network also may comprise N nodes and links coupling the nodes for carrying data in W channels such that N?2 log2 W?1 where W is a power of 2. Each of the N nodes comprises switches connected such that each channel of a first one of the links adjacent any one of the N nodes can be switched to no more than W?1 channels of another one of the links adjacent any one node.
    Type: Application
    Filed: May 16, 2005
    Publication date: December 29, 2005
    Inventors: Rajiv Ramaswami, Galen Sasaki
  • Multichannel ring and star networks with limited channel conversion
    Patent number: 6970433
    Abstract: A star communication network including a hub node (102) and links (102E) couple to the hub node for carrying data along routes in W channels. The hub node has switches connecting each channel of a first one of the links to various channels of a second one of the links through the hub node.
    Type: Grant
    Filed: July 21, 1999
    Date of Patent: November 29, 2005
    Assignee: Tellabs Operations, Inc.
    Inventors: Rajiv Ramaswami, Galen Sasaki
  • Multichannel ring and star networks with limited channel conversion
    Patent number: 6108311
    Abstract: A ring communication network including N nodes and comprising links between the nodes for carrying data in W channels. The network is configured by providing nodes and channels such that N.gtoreq.2 log.sub.2 W-1 where W is a power of 2. No more than W channels are assigned to the transmission of data along any of the links. The nodes are configured such that each channel of a first one of the links adjacent any one of the nodes can be switched to no more than W-1 channels of a second one of the links adjacent any one node.
    Type: Grant
    Filed: April 29, 1996
    Date of Patent: August 22, 2000
    Assignee: Tellabs Operations, Inc.
    Inventors: Rajiv Ramaswami, Galen Sasaki