| Patent application number | Description | Published |
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| 20080215583 | Ranking and Suggesting Candidate Objects - A method of ranking and suggesting objects, such as tags, is described in which a group of objects are suggested to a user in relation to a particular information object, such as a web page or file. A user either selects one of the suggestions or enters an alternative object and on receipt of data identifying the particular object selected by the user, the group of suggestions is updated based on whether the object selected by the user was one of the suggestions or not. The updating of the group may also be based on other factors, such as ranking parameters associated with each of the objects. | 09-04-2008 |
| 20090003216 | Multipath Forwarding Algorithms Using Network Coding - A method of transmitting data across a wireless mesh network is described which uses network coding at each of the intermediate nodes between the source node and the destination node. Each intermediate node also controls the rate at which it broadcasts packets based on link congestion and the backlog of packets at each of the possible next-hop nodes for the data flow. | 01-01-2009 |
| 20090296685 | User-Mode Prototypes in Kernel-Mode Protocol Stacks - Methods of enabling user-mode prototypes in kernel-mode protocol stacks are described. A protocol stack comprises a set of kernel-mode modules. The protocol stack defines a data path for packets. At least one interception point is defined in a kernel-mode module at which a packet can be intercepted and/or inserted. In an embodiment, each packet intercepted at the interception point, or a copy of said packet, is sent to a user-mode module. The user-mode module processes the packet in some way and then returns the packet to the same, or a different, interception point in the data path. In this way, a user-mode module (which is easier to program) can be used to prototype functionality of a kernel-mode module without requiring kernel-mode code to be written. | 12-03-2009 |
| 20100027424 | Path Estimation in a Wireless Mesh Network - Methods and algorithms for path estimation in a wireless mesh network are described. In an embodiment, each node calculates its cost for a packet flow based on the back-log at the node and the cost of downstream neighbor nodes for the flow. The cost is communicated to the upstream neighbor nodes for the flow. When a node has an opportunity to transmit a packet, a flow is selected by the node based on the back-log at the node and the costs received from each of the downstream neighbor nodes. These costs are then also used to select a downstream neighbor node is selected based on the costs received from each of the downstream neighbor nodes. A packet re-ordering algorithm is also described which intercepts packets received at a node and delays delivery of the packet to the IP layer if an earlier packet in the sequence of packets has not been received. | 02-04-2010 |
| 20110013516 | Control of Background Data Transfers - Control of background data transfers is described. In an embodiment, a background data transfer is controlled at a receiver node by measuring a time period taken to receive from a sender node a data sequence of the same size as a receive window. The time period is used to evaluate available network capacity, and the network capacity used to calculate a new window size. The new window size is applied and communicated to the sender node. In another embodiment, a background data transfer is controlled at a receiver node by measuring a quantity of data received from a sender node during a first control interval. The measured quantity is used to evaluate available network capacity, and the network capacity used to calculate a new receive window size and a second control interval duration. The new window size is applied for the second control interval, and communicated to the sender node. | 01-20-2011 |
| Patent application number | Description | Published |
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| 20090210932 | ASSOCIATING NETWORK DEVICES WITH USERS - Systems, devices, and methods for associating network devices with users are described, which can facilitate establishing a secure user to network device association. In various embodiments, the disclosed subject matter facilitates devices providing indication of location and device identity to a user and recognizing the user is in the proximity of the device. The disclosed subject matter provides efficient and secure device to user association and can facilitate performing customized actions based on the nature of the association. | 08-20-2009 |
| 20100232324 | Full-Duplex Wireless Communications - Full-duplex wireless communication is described. In an embodiment, a transceiver device having a transmitter circuit and a receiver circuit receives a data packet sent over a shared communication medium. In the embodiment, the transceiver reads the header of the data packet and starts transmitting an output signal on the same shared communication medium. Embodiments are described in which, whilst the transmission of the output signal is ongoing, the transceiver receives an impaired data signal which is made up of the payload of the data packet and interference from the output signal. In the embodiment, a cancellation signal is derived from the output signal, and this is combined with the impaired data signal to remove the interference and recover the payload of the data packet. | 09-16-2010 |
| 20110299408 | Dynamic Channel and Transmission Rate Selection - Dynamic channel and transmission rate selection is described. In an example, a communication resource for transmitting data to a receiver is selected from several channels, each having several associated rates. The selection comprises storing a weighting factor for each channel/rate combination, monitoring transmission performance on a selected channel and rate, and inferring performance for other rates on the selected channel from the monitored performance. Each weighting factor is then updated using the monitored and inferred performances, and used to select a channel/rate combination for subsequent transmission. In another example, a communication device comprises a transmitter, a processor, and a memory arranged to store a weighting factor associated with each receiver, channel and rate combination. The transmitter sends data to a receiver using one channel and rate, and the processor monitors the performance, updates the weighting factors accordingly, and selects a receiver, channel and rate combination for subsequent transmission. | 12-08-2011 |
