Abstract: Data packets are transmitted from a first access network to a first interface of a multiple interface device (MID), and identical data packets are transmitted concurrently from a second access network to a second interface of the MID. Some of the data packets that are transmitted to the MID from the first access network are not received by the first interface. The MID inspects identifiers of data packets from the first and second interfaces in order to send to the application a stream including all of the data packets. For example, the MID sends to the application the data packets from the first interface, buffers the data packets from the second interface, and sends data packets from the buffer to the application upon detecting that data packets in the buffer were transmitted to the first interface but not received by the first interface.

Abstract: This document describes, among other things, a systems and methods for monitoring vehicle conditions via cellular networks.

Abstract: In some embodiments, a system and method for substantially real-time comparison of quality of interfaces by mobile devices over heterogeneous networks is disclosed. The method can be performed using a dynamic and rapid comparison by distributed hosts, using a minimal number of injected network packets, using minimal path quality metrics, which path quality metrics are independent of how a QoI is measured, and in a manner suitable for both wireline and wireless networks.

Abstract: In some illustrative embodiments, an IP-layer based network selection and multihoming method is provided that enables a flexible and secure dynamic selection of one or more serving networks for use by a client node. The method is independent of any link-layer technology. A serving network can be an ISP network, a NAP network exchange facility, a VLAN, or the like. Network information is advertised to a client node, the client node is authenticated and authorized for use of an access router, and a secure tunnel is established between the client node and the access router. The method can be implemented by using standard protocols, and can work over any existing or future link-layer technologies that are able to carry IP datagrams, without any modification.

Abstract: Systems and methods for mobile peer-to-peer information sharing are disclosed. With the preferred systems and methods, mobile users and devices collect information about networks that they visit, and carry that information as they move to new networks. Mobile users and/or devices then share such information directly with each other.

Abstract: A helper station system is disclosed that can enhance communications in a wireless network having at least one slow or unreliable link. In preferred embodiments, the helper station system includes at least one helper station configured to wirelessly re-transmit an original wireless transmission from at least one sender station to at least one access point without having to re-contend for access to the wireless medium.

Abstract: A Multi-Interface Mobility Management (MIMM) client is provided on a mobile Multi-Interface Device (MID) to support seamless network connectivity and switching of the MID. The MIMM client communicates with a MIMM Server. The MIMM Server collects information from MIMM Clients and provides information to the MIMM Clients pertaining to the network(s) to which the mobile MID has access, such as information concerning the availability of a network, the quality of network connectivity, etc. The MIMM Client is responsible for determining whether and when a handoff or roaming operation should be initiated by the mobile MID, and which network interface the mobile MID should use after the handoff/roam operation has been completed. The MIMM Client also is responsible for performing mobility-related functions that are required prior and subsequent to the handoff/roam operation. The MIMM Client uses the information received from the MIMM Server in order to make these determinations.

Abstract: In preferred embodiments, a wireless network system features buffering of data packets transmitted to mobile nodes. The system is transparent to the mobile node, so that the mobile node is not required to request service from the network, or negotiate service parameters with the network. An EAPOL-Start and binding update messages initiate and terminate the buffering, and also commence pre-authentication and smooth handoff reporting, respectively.

Abstract: This application describes, among other things, a framework of Media-independent Pre-Authentication (MPA), a new handover optimization mechanism that has a potential to address issues on existing mobility management protocols and mobility optimization mechanisms. MPA is a mobile-assisted, secure handover optimization scheme that works over any link-layer and with any mobility management protocol. This application also shows, among other things, an initial implementation of MPA in our testbed and some performance results to show how existing protocols could be leveraged to realize the functionalities of MPA.

Abstract: Transportation costs are minimized with a novel system for optimizing a route for a service vehicle, for example, a package delivery van. Based upon static and dynamic information, a computer on board the service vehicle determines an optimum route for the vehicle to travel between multiple locations. The computer on board the service vehicle communicates wirelessly to receive any pertinent dynamic information which has changed (e.g., traffic congestion, the presence of a customer at a deliver location, or a modification of location). The computer then recalculates the optimum route for the vehicle and guides the driver of the vehicle in accordance with the newly determined optimum route. The on board computer continues to check for any updates, and recalculates the optimum route throughout the day. Thus, the optimum route may be selected based upon the latest available information white avoiding heavy signal traffic on the wireless network.

Abstract: This application sets forth, among other things, a new approach for real time collection, discovery, and sharing of network and user information, which we refer to as Autonomous Collaborative Information Collection, Discovery, and Sharing (AC-CDS). It is autonomous because regular mobile users and devices act autonomously to collect information and make the information available to others. It is collaborative as the autonomous actions of the mobile users and devices help each other to discover the information they want.

Abstract: The preferred embodiments herein relate to methods and systems for controlling a handoff decision related to switch back of a mobile node between a first network and a second network in a media independent pre-authentication framework and/or to methods and systems for mitigating effects of undesired switch back of a mobile node between a first network and a second network in a media independent pre-authentication framework.

Abstract: According to some preferred embodiments of the present invention, a motor driving circuit includes a phase detection circuit configured to detect a rotation phase of a motor and output a phase detection signal, a first amplifier configured to amplify the phase detection signal and output an amplified detection signal, and a second amplifier configured to amplify the amplified detection signal in accordance with a power supply voltage and output a driving signal to the motor. The motor driving circuit is further provided with a controlling circuit configured to detect the power supply voltage and increase/decrease amplitude of the amplified detection signal outputted from the first amplifier in response to an increase/decrease of the detected power supply voltage, whereby heat generation and noise generation can be restrained, irrespective of the increase/decrease of the power supply voltage.

Abstract: A system and method that addresses the issue of inducing and exploiting multi-user diversity in, e.g., a WLAN system in a fully distributed and opportunistic manner. In some embodiments, the system includes: an access point having a variable beamformer configured to fluctuate signal strength as perceived by stations within a range of the access point; and a plurality of stations having modified distributed-MAC protocol such as to be channel-aware and opportunistic.

Abstract: This document describes, among other things, a systems and methods for monitoring vehicle conditions via cellular networks. In some embodiments, a system for monitoring vehicle conditions is provided that includes at least one network information repository server having at least one database containing information related to vehicle conditions. The at least one network information repository server is configured to receive updates from mobile stations that perform a comparison of vehicle conditions based on actual information sensed by the mobile stations as compared to expected vehicle conditions and that upon identifying an inconsistency send an update to the network information repository server. Moreover, the network information repository server is configured to transmit updated information to a cellular network for broadcasting or multicasting to mobile stations or to send information via a cellular interface or wirelessly to mobile stations.

Abstract: Data packets are transmitted from a first access network to a first interface of a multiple interface device (MID), and identical data packets are transmitted concurrently from a second access network to a second interface of the MID. Some of the data packets that are transmitted to the MID from the first access network are not received by the first interface. The MID inspects identifiers of data packets from the first and second interfaces in order to send to the application a stream including all of the data packets. For example, the MID sends to the application the data packets from the first interface, buffers the data packets from the second interface, and sends data packets from the buffer to the application upon detecting that data packets in the buffer were transmitted to the first interface but not received by the first interface.

Abstract: In some embodiments, a system and method is disclosed for, among other things, reducing interference in a first wireless network from a second wireless network. In some embodiments, the method includes that an Interfered AP, which Interfered AP either itself receives interference or has a station in the Interfered AP's network that receives interference from an Interfering AP or from a station within the Interfering AP's network, selects how to reduce interference from a plurality of interference reduction methods—e.g., including transmit power control (TPC), channel switching (CS) and/or the like.

Abstract: The present application discloses, inter alia, a system for improving the aggregate throughput of a wireless local area network which includes: at least one access point that is equipped with at least one transceiver configured to simultaneously transmit and receive at multiple frequencies using multiple channels; and the access point being configured to acquire channel conditions of users and to pool sets of users on the channels based on the channel conditions.

Abstract: A high performance memory based computation system comprises an array of memory cells. Each memory cell stores a logic data corresponding to a chosen combination of inputs based on a specific logic function. For improved performance, the memory cell array can be divided into sub-blocks; and the sub-blocks can be serially disposed or juxtaposed. The performance of the memory based computation system can further be improved by removing the repeated memory cell rows, column, and/or sub-arrays.

Abstract: A positive displacement lubrication system is disclosed that includes a rotatable shaft, a bearing, and a centrifugal force generating lubrication member that is mounted on the shaft for rotation with the shaft. The centrifugal force generator is spaced from the bearing member. A labyrinthine lubricant flow passage extends from the bearing, through a space between the bearing and the centrifugal force generating member, to the outlet member. Among other things, the system and method provides an efficient method of actively managing bearing lubrication and removal of lubricant, while also acting to seal off bearing areas from leaking. The positive displacement devices can be used for both grease and oil mist lubrication systems. They can also operate under heavy thrust loads when used to support the bearings.