Arrangements involving portable devices (e.g., smartphones and tablet computers) are disclosed. One arrangement enables a content creator to select software with which that creator's content should be rendered—assuring continuity between artistic intention and delivery. Another utilizes a device camera to identify nearby subjects, and take actions based thereon. Others rely on near field chip (RFID) identification of objects, or on identification of audio streams (e.g., music, voice). Some technologies concern improvements to the user interfaces associated with such devices. Others involve use of these devices in connection with shopping, text entry, sign language interpretation, and vision-based discovery. Still other improvements are architectural in nature, e.g., relating to evidence-based state machines, and blackboard systems. Yet other technologies concern use of linked data in portable devices—some of which exploit GPU capabilities. Still other technologies concern computational photography. A great variety of other features and arrangements are also detailed.

Smartphone-based methods and systems

Effective use of cloud computing in educational institutions

A home network, in one embodiment including a home wiring system; a demarcation point unit in electrical communication with the home wiring system; and a home network module in electrical communication with the home wiring system. The home network module is adapted for connection to a home electronic device. The demarcation point unit passes data to and receives data from the home electronic device through the home network module.

Home network system and method

Systems and methods for selectably controlling and customizing source access to a network, where the source is associated with a source computer, and wherein the source computer has transparent access to the network via a gateway device and no configuration software need be installed on the source computer to access the network. A user may be prevented access from a particular destination or site based upon the user's authorization while being permitted to access to other sites that the method and system deems accessible. The method and system can identify a source without that source's knowledge, and can access customizable access rights corresponding to that source in a source profile database. The source profile database can be a remote authentication dial-in user service (RADIUS) or a lightweight directory access protocol (LDAP) database. The method and system use source profiles within the source profile database to dynamically authorize source access to networks and destinations via networks.

Systems and Methods for Providing Dynamic Network Authorization, Authentication and Accounting

A storage subsystem monitors one or more conditions related to the probability of a data error occurring. Based on the monitored condition or conditions, the storage subsystem adjusts an error correction setting, and thus the quantity of ECC data used to protect data received from a host system. To enable blocks of data to be properly checked when read from memory, the storage subsystem stores ECC metadata indicating the particular error correction setting used to store particular blocks of data. The storage subsystem may be in the form of a solid-state non-volatile memory card or drive that attaches to the host system.

Storage subsystem capable of adjusting ecc settings based on monitored conditions

A system for configuring solid-state storage devices comprises a solid-state storage device and an error correction code (ECC) selection system. The ECC selection system is configured to automatically select a set of error correction code based on an error rate of the storage device. The ECC selection system is further configured to install the selected set of error correction code in the solid-state storage device.

System and method for configuring a solid-state storage device with error correction coding

An ATM switch with multicast capability is provided that internally uses input and output identifiers to identify the cell input and output streams, the relevant input identifier being generated for each cell as it arrives. The apparatus stores both the cell bodies of the cells received by the input means and a respective sequence data set for each input stream. Each sequence data set serves to order the cell bodies received for the corresponding input steam in order of receipt. The sequence data sets are held in a queuing block that includes an input control which upon a new cell body being stored, updates the sequence data set of the input stream to which the cell belongs as identified by the corresponding input identifier. The queuing block also has an output control for maintaining for each output stream a sequence position indicator referencing into the sequence data set of the corresponding input stream to indicate the next cell body to be sent on the output stream concerned. A scheduling block of the apparatus outputs the output identifier of the output stream on which a cell is next to be output. This identifier is used by the output control of the queuing block to look up the corresponding sequence position indicator which it uses, in turn, to reference into the corresponding sequence data set thereby to identify the cell next to be sent on the scheduled output stream. The same queuing arrangement can also be used in systems handling variable-length packets.

Asynchronous transfer mode switch with multicasting ability

Embodiments of the present invention provide a data storage and retrieval system operating on a host computer (22). The data storage and retrieval system comprises a sparing system (39) configured to replace defective memory sections of a memory device (24) with replacement memory sections of the memory device (24), and an error correction code system (40). The error correction code system (40) is configured to encode data with an error correction code to store the data into the memory device (24) and decode the encoded data with the error correction code to retrieve the data from the memory device (24).

Data storage system with error correction code and replaceable defective memory

Two important questions in high-speed networking are firstly, how to provide Gbit/s networking at low cost and secondly, how to provide a flexible low-level network interface so that applications can control their data from the instant it arrives.We describe some work that addresses both of these questions. The Jetstream Gbit/s LAN is an experimental, low-cost network interface that provides the services required by delay-sensitive traffic as well as meeting the performance needs of current applications. Jetstream is a combination of traditional shared-medium LAN technology and more recent ATM cell- and switch-based technology.Jetstream frames contain a channel identifier so that the network driver can immediately associate an incoming frame with its application. We have developed such a driver that enables applications to control how their data should be managed without the need to first move the data into the application's address space. Consequently, applications can elect to read just a part of a frame and then instruct the driver to move the remainder directly to its destination. Individual channels can elect to receive frames that have failed their CRC, while applications can specify frame-drop policies on a per-channel basis.Measured results show that both kernel- and user-space protocols can achieve very good throughput: applications using both TCP and our own reliable byte-stream protocol have demonstrated throughputs in excess of 200 Mbit/s. The benefits of running protocols in user-space are well known- the drawback has often been a severe penalty in the performance achieved. In this paper we show that it is possible to have the best of both worlds.

/pdf/user-space-protocols-deliver-high-performance-to-1i8j1wvh1a.pdf

User-space protocols deliver high performance to applications on a low-cost Gb/s LAN

A method of providing internet access to a data object repository comprising managing data objects hosted by said repository using a generalised repository directed graph data model having object nodes and resources, said resources comprising at least one of (i) a literal; (ii) actual resource data; and/or (iii) a URI directing a request for resources to an address; wherein said object nodes comprise higher level abstractions of data objects; wherein all object nodes and resources are named, as well as all arcs between object nodes and other object nodes or resources, said arcs modelling properties of said nodes; wherein each said directed graph has a graph interface which represents data as a directed graph of nodes and resources; and wherein said graph interface is capable of enabling access to data represented by said directed graph by traversal of said directed graph using http:GET.

Digital object repositories, models, protocol, apparatus, methods and software and data structures, relating thereto

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