Patents by Inventor Michael W. Ritter

Michael W. Ritter 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).

  • Patent number: 7155526
    Abstract: A method and system are provided for integrating a WLAN radio access network into a GSM/GPRS core network wherein gateways are added that transparently transport services between the two networks. A further aspect of the invention is secure authentication. The system has two network elements: a Radio Link Manager (RLM) and a Radio Access Controller (RAC), and a software application, a Multi-Link Client (MLC) to control the functionality of the integration and the authentication. The MLC resides on a user device. The RAC provides protocol stacks and interworking functions to allow the MLC to talk to a Home Location Register (HLR). The RLM and MLC set up a “tunnel” employing, for example, PPP over Ethernet (PPPOE), and all of the data packets received on this tunnel are forwarded by the RLM to the Gateway GPRS Support Node (GGSN over a further tunnel using the GPRS Tunneling Protocol (GTP).
    Type: Grant
    Filed: June 19, 2002
    Date of Patent: December 26, 2006
    Assignee: Azaire Networks, Inc.
    Inventors: Mayank S. Chaudhary, Allam Zaheer Ahmed, Nishi Kant, Chih-hsin Alan Chuang, Michael W. Ritter
  • Patent number: 6999441
    Abstract: In a mesh communication network, a poll request protocol (PRP) is provided in which a special packet is broadcast by the congested node when it is ready to provide services. The controlling node (usually the more congested node) broadcasts a packet to request poll signals from nodes desiring resources of the controlling node. The contending nodes then have equal chances to request the services of the controlling node by sending poll signals. The controlling node can then arbitrate the requests, determine the most fair and efficient use of its resources, and broadcast a scheduling packet to inform the contending nodes when to inform the contending nodes of controlling node scheduling. The contending nodes then send their packets to the controlling node without lost packets caused by congestion collisions. The controlling node can then send data to the contending nodes also without lost packets.
    Type: Grant
    Filed: June 27, 2001
    Date of Patent: February 14, 2006
    Assignee: Ricochet Networks, Inc.
    Inventors: George H. Flammer, III, David L. Paulsen, Michael W. Ritter
  • Publication number: 20040139201
    Abstract: A method and system are provided for integrating a WLAN radio access network into a GSM/GPRS core network wherein gateways are added that transparently transport services between the two networks. A further aspect of the invention is secure authentication. The system has two network elements: a Radio Link Manager (RLM) and a Radio Access Controller (RAC), and a software application, a Multi-Link Client (MLC) to control the functionality of the integration and the authentication. The MLC resides on a user device. The RAC provides protocol stacks and interworking functions to allow the MLC to talk to a Home Location Register (HLR). The RLM and MLC set up a “tunnel” employing, for example, PPP over Ethernet (PPPOE), and all of the data packets received on this tunnel are forwarded by the RLM to the Gateway GPRS Support Node (GGSN over a further tunnel using the GPRS Tunneling Protocol (GTP).
    Type: Application
    Filed: June 19, 2002
    Publication date: July 15, 2004
    Applicant: Mobility Network Systems, Inc.
    Inventors: Mayank S. Chaudhary, Allam Zaheer Ahmed, Nishi Kant, Chih-hsin Alan Chuang, Michael W. Ritter
  • Patent number: 6735178
    Abstract: In an imperfect mesh network or in a star network, the directionality of transmission and reception at each node, as through a directional antenna, is selected to maximize combined or multiple-link end-to-end information throughput. To this end, a maximum throughput metric is provided for separate links through the network between a source node and a collection of end-point nodes to be optimized which is based on 1) measurement of link quality with respect to neighboring nodes and 2) information about link quality and other factors related to propagation delay or “latency” as reported to it by other nodes regarding their neighboring links, and 3) based upon the busy-ness or capacity utilization at each link.
    Type: Grant
    Filed: May 10, 2000
    Date of Patent: May 11, 2004
    Assignee: Ricochet Networks, Inc.
    Inventors: Arty Srivastava, Michael W. Ritter, Robert J. Friday
  • Publication number: 20030002442
    Abstract: In a mesh communication network, a poll request protocol (PRP) is provided in which a special packet is broadcast by the congested node when it is ready to provide services. The controlling node (usually the more congested node) broadcasts a packet to request poll signals from nodes desiring resources of the controlling node. The contending nodes then have equal chances to request the services of the controlling node by sending poll signals. The controlling node can then arbitrate the requests, determine the most fair and efficient use of its resources, and broadcast a scheduling packet to inform the contending nodes when to inform the contending nodes of controlling node scheduling. The contending nodes then send their packets to the controlling node without lost packets caused by congestion collisions. The controlling node can then send data to the contending nodes also without lost packets.
    Type: Application
    Filed: June 27, 2001
    Publication date: January 2, 2003
    Applicant: Metricom, Inc.
    Inventors: George H. Flammer, David L. Paulsen, Michael W. Ritter
  • Patent number: 5570084
    Abstract: In a packet communication system, loose source routing is employed to permit communication over networks of disparate types, including geographic and path-unaware types. No information resides on a wired access point (WAP). All of the intelligence of the system resides in Name Servers, which provide opaque addresses that end nodes (radios) in a wireless cloud can use to send packets to other end nodes (radios) in other wireless clouds. (A cloud is the set of radios serviced by a particular WAP.) According to the invention, the method employs an ordered list called a path and the network address of a packet consists of such an ordered list of addresses with a "marker" that flags the current destination of the packet and a "direction bit" that tells which direction on the list the next destination is. Each address in the path is type-length-value (TLV) encoded.
    Type: Grant
    Filed: June 28, 1994
    Date of Patent: October 29, 1996
    Assignee: Metricom, Inc.
    Inventors: Michael W. Ritter, John Bettendorff, George H. Flammer, III, Brett D. Galloway