13290 results about "Wireless sensor network" patented technology

A portable data terminal (PDT) adapted to participate in a wireless mesh network including a plurality of peer PDTs can comprise: a PDT module including an encoded information reading (EIR) device, and a mesh point (MP) module communicatively coupled to the PDT module. The MP module can include a microcontroller and at least one wireless communication interface and can be configured to perform IEEE 802.11-conformant wireless station services including authentication, de-authentication, privacy, and MAC service data unit delivery, and IEEE 802.11-conformant wireless distribution system services including association, disassociation, distribution, integration, and re-association. The MP module can be further configured, responsive to receiving a MAC frame addressed to a recipient inside the wireless mesh network, to deliver the MAC frame using the distribution service. The MP module can be further configured, responsive to receiving a MAC frame addressed to a recipient outside of the wireless mesh network, to deliver the MAC frame using the integration service. The MP module can be further configured to route an incoming MAC frame according to its destination address and the frame control field. The MP module can be further configured to cause the PDT module to exit said sleeping state responsive to receiving a mobile management software (MMS) wake-up command.

The present invention can be used to facilitate the integration of wireless capability provided by wireless access points into an enterprise computer network. A gateway server is interposed between wireless access points and protected networks to provide security and integration functions, for example, authentication, access control, link privacy, link integrity, and bandwidth metering in various embodiments. Use of such a gateway server allows substantial control to be gained over network access even with the use of relatively simple access points. In general, such a gateway server receives a request to access the protected network. An authentication subsystem of the gateway server authenticates the user, preferably by accessing an external authentication server and returns a role to the authenticated user. An access controller in the gateway server provides differential access to the protected network based on the user's assigned role. A multiple gateway servers can be connected together to form a mesh network architecture.

A system for monitoring the location of individuals, such as parolees, includes a wearable device worn by the individual and a portable device operatively coupled to the wearable device. The portable device is operatively coupled to a monitoring system through a wireless telephone network. The portable device transmits periodically encrypted location information as well as status information across the wireless network to the monitoring system. The monitoring system tracks the location of the individual and alerts the appropriate authorities when the individual violates a rule, such as a condition for parole. The portable device increases the time between transmissions when the individual is within a specified home location and reduces the time between transmissions when outside the specified location.

A novel system and methodology for conducting financial and other transactions using a wireless device. Credentials may be selectively issued by issuers such as credit card companies, banks, and merchants to consumers permitting the specific consumer to conduct a transaction according to the authorization given as reflected by the credential or set of credentials. The preferred mechanism for controlling and distributing credentials according to the present invention is through one or more publicly accessible networks such as the Internet wherein the system design and operating characteristics are in conformance with the standards and other specific requirements of the chosen network or set of networks. Credentials are ultimately supplied to a handheld device such as a mobile telephone via a wireless network. The user holding the credential may then use the handheld device to conduct the authorized transaction or set of transactions via, for example, a short range wireless link with a point-of-sale terminal.

A system and method for authenticating votes received from a voter's mobile device. A computer is programmed with a set of computer-readable instructions and a includes database accessable by mobile device reading a durable computer readable medium stored in a computer hardware server, the database comprising a registered voter and a geographical location for the registered voter's postal mail delivery address. The system and method receive a vote in an election over a wireless carrier network, determine the geographical location of a device which transmitted the vote over the wireless network comprising cell tower triangulation, and reject the vote if the geographical location of the device which transmitted the vote is not within a predetermined distance from the geographical location for the registered voter stored in the database.

In embodiments of the present disclosure improved capabilities are described for increasing the bandwidth in a large area broadband LTE wireless network, where regional optimization servers are incorporated near the wireless network in association with the public data network gateway, thus reducing the time-latency for applications being run from a mobile cellular device. Further, by associating additional optimization servers at base stations, application functionality may be optionally transferred from the regional optimization server to the local base station optimization server in instances where a number of mobile cellular devices are requesting the same data via their access through the same cell, and in other instances, to the effect that back haul network bandwidth utilization is reduced or eliminated.

A wireless sensor network, a node device thereof and a method for arranging communications therein are presented. A first frequency is used in wireless communication of information between a headnode and subnodes of a first cluster (103) using a time slotted channel access scheme. A headnode of a second cluster (113) known the first frequency and selects a second, different frequency for use in wireless communication of information within said second cluster (113) using a time slotted channel access scheme. The headnode of the first cluster (103) is informed about the second frequency selected for the second cluster (113). Information from the headnode of said first cluster (103) to the headnode of said second cluster (113) is communicated on said second frequency, using the same time slotted channel access scheme as other nodes in said second cluster (113).

In one illustrative example, a mobile communication device has a plurality of software applications including an Internet browser application, an electronic mail (e-mail) communication application, and an audio or video player application. The mobile device is adapted to receive, from wireless communication networks or through use thereof, available quality of service data for the wireless networks and store the corresponding data in association with each network identification. The available quality of service data includes at least a bandwidth criterion and a delay criterion associated with each wireless network. For each one of the software applications, the mobile device is adapted to execute the software application; identify, based on the stored quality of service data, one or more wireless networks having a bandwidth criterion and a delay criterion that best match a bandwidth requirement and a delay requirement, respectively, of the executed software application; and select, based on the identifying, an available wireless network for communication using the executed software application.

An access point is to handle received broadcast or multicast traffic as multiple instances of unicast traffic, where each instance is destined for a corresponding wireless client device associated with the access point. A client device may adjust its listen interval parameter according to predefined considerations, for example a charge level of a battery to power the client device and an expected usage model for the device. A client device may initiate a reassociation request to inform the access point of its adjusted listen interval parameter.

Applications of CI processing to ad-hoc and peer-to-peer networking significantly improve throughput, network capacity, range, power efficiency, and spectral efficiency. CI-based subscriber units perform network-control functions to optimize network performance relative to channel conditions, network loads, and subscriber services. CI codes are used to identify and address network transmissions. Channel characteristics of communication links are employed to encode, address, and authenticate network transmissions. CI transceivers used as relays and routers employ unique characteristics of transmission paths to code and decode network transmissions. A central processor is adapted to perform array processing with signals received from, and transmitted by, a plurality of subscriber units in a wireless network.

A system and method for the establishment and maintenance of wireless network, such as wireless network enabling access to the World Wide Web. The network can be created by its users as part of social network activity. The users are using automated resources discovery, verification and mapping as a comprehensive wireless resources search engine. Once few locations are mapped as wireless service “hot spots,” the service area can be expanded as users keep discovering and mapping more resources. These existing wireless Internet access resources could be mined by users to create spontaneous wireless network providing wide area high-speed data service.

A method for providing access to one or more resources in a computer network, establishing a connection between a user and the computer network via at least one wireless access point, generating an authentication level for the user associated with accessing the one or more resources, sending a program to the client device, receiving authentication data from the user, and changing the authorization level of the user based upon the authentication data received from the user.

A method and apparatus for receiving content over a wireless network are described, including determining a first server from which to receive a content clip to be streamed, requesting the content clip to be streamed from the selected first server, receiving the streamed content clip from the selected first server, determining a peer device from which to receive a content clip to be downloaded, requesting the content clip to be downloaded and receiving the downloaded content clip. The first server is a mesh content server.