Abstract: The present invention discloses a method and apparatus for authorized distribution of digital content amongst a plurality of mobile devices, under the mobile service provider's control. A mobile subscriber requests for services (digital content/applications) to a mobile service provider. The mobile service provider then sends a download descriptor to the mobile device through an SMS message. The download descriptor includes a link to the actual digital content hosted by a content provider. The user is then able to read, delete, forward the download descriptor to other mobile users or download the content on his/her mobile device at any point of time. The user also gets notified about any changes such as a new service or a version upgrade according to his/her preferences. The invention enables the mobile service provider to implement payment, licensing, copyright and other digital rights management policies while enabling a user to distribute the content to other users.

Abstract: The present invention provides for creation, relevance based discovery and delivery of services to mobile users over telecommunications networks. The services are provided on a Mobile Service Provider's (MSP's) network infrastructure and created in collaboration with third parties by means of service objects. Each service object is a three dimensional collection of service capabilities derived from the network infrastructure, service elements and assets like user billing relations, user profiles, device capability and location. The service capabilities address and factor in network facing, subscriber facing and third party requirements of service delivery. Service objects can be configured for different service and business priorities of the operator such as DRM and location services. A service object extends all MSP assets to third parties in a regulated manner. The user can discover relevant services, subscribe to, and personalize the services.

Abstract: The present invention provides a technique for implementing digital rights management for digital content that can be used on Java enabled mobile devices. It enables the controlled usage of the digital content on the mobile device after it is downloaded from a content provider. This is achieved by a mobile service provider that generates a license based on a rights workflow and applies charging policies to prevent the downloaded digital content from being forwarded to other users. The digital content cannot be used without the license. The digital content can be delivered to the user either through combined or separate delivery, depending on whether the license is sent along with the digital content or not. On expiry of the license, the user is prompted for updating the license. The user can then use the digital content once the license is updated.

Abstract: The invention is a method, system and computer program for automatically discovering concepts from a corpus of documents and automatically generating a labeled concept hierarchy. The method involves extraction of signatures from the corpus of documents. The similarity between signatures is computed using a statistical measure. The frequency distribution of signatures is refined to alleviate any inaccuracy in the similarity measure. The signatures are also disambiguated to address the polysemy problem. The similarity measure is recomputed based on the refined frequency distribution and disambiguated signatures. The recomputed similarity measure reflects actual similarity between signatures. The recomputed similarity measure is then used for clustering related signatures. The signatures are clustered to generate concepts and concepts are arranged in a concept hierarchy. The concept hierarchy automatically generates query for a particular concept and retrieves relevant documents associated with the concept.

Abstract: The present invention provides a system, method and computer program product for implementing application level policies in an operator network, while managing the exchange of data packets between users and service providers during the provisioning of premium data services. The present invention intermediates between a user and a service provider (who may be an enterprise, content provider, an application provider or a partner portal). The present invention enforces access control, prompting, redirection and inline context injection dynamically while the service is being delivered, and generates metering records for billing purposes. Prompting enables notifications and taking inputs from the user while the user accesses chargeable content or when the sharing of user data (profile or choice) occurs between the network and service provider.

Abstract: The present invention provides a method, system and computer program for naming a cluster, or a hierarchy of clusters, of words and phrases that have been extracted from a set of documents. The invention takes these clusters as the input and generates appropriate labels for the clusters using a lexical database. Naming involves first finding out all possible word senses for all the words in the cluster, using the lexical database; and then augmenting each word sense with words that are semantically similar to that word sense to form respective definition vectors. Thereafter, word sense disambiguation is done to find out the most relevant sense for each word. Definition vectors are clustered into groups. Each group represents a concept. These concepts are thereafter ranked based on their support. Finally, a pre-specified number of words and phrases from the definition vectors of the dominant concepts are selected as labels, based on their generality in the lexical database.

Abstract: Nanostructured and layered lithium manganese oxide powders and methods of producing same. The powders are represented by the chemical formula, LixMn1-yMyO2, where 0.5<x<1.33, 0?y?0.5 and have an average primary particle diameter from 5 nm to 300 nm, preferably between 5 and 100 nm, and M is at least one cation dopant. The powders can be formed into active cathode materials in Li-ion and Li rechargeable batteries.

Abstract: A design for high pressure/high temperature apparatus and reaction cell to achieve ˜30 GPa pressure in ˜1 cm volume and ˜100 GPa pressure in ˜1 mm volumes and 20-5000° C. temperatures in a static regime. The device includes profiled anvils (28) action on a reaction cell (14, 16) containing the material (26) to be processed. The reaction cell includes a heater (18) surrounded by insulating layers and screens. Surrounding the anvils are cylindrical inserts and supporting rings (30-48) whose hardness increases towards the reaction cell. These volumes may be increased considerably if applications require it, making use of presses that have larger loading force capability, larger frames and using larger anvils.

Abstract: A transparent and abrasion resistant coating which includes a transparent matrix, relatively large-sized abrasion resistant ceramic particles and nanosized ceramic particles for raising the index of refraction of the matrix to that of the abrasion resistant ceramic particles. The present coating provides a scratch resistant coatings for use on plastic substrates, which are needed in a variety of applications such as, high index ophthalmic and sportswear lenses, as well as automobile side windows and aircraft cockpit applications.

Abstract: X-ray imaging screens utilizing phosphors disposed in microchannels disposed in a plate. This application relates to the “tiling” of such microchannel plates to form a larger imaging area and to the use of “storage phosphors” in the microchannel plates which enables the phosphors to be read out after exposure and from the side exposed to the X-rays. The storage phosphor screens of the present invention provide significantly increased resolution than the prior art storage phosphor screens.

Abstract: Ultrafine powders of Li4Ti5O12 with particles in the size range of 25-500 nm. The average size of particles is about 500 nm of less, preferably about 300 nm or less. The particles are composed of nanocrystallites, which have an average size about 30 nm. This invention also includes the method of producing these ultrafine Li4Ti5O12 particles. The process utilizes (i) nanoparticles of TiO2, (ii) a lithium salt, and (iii) an organic solvent with a boiling point in the range of 70-230° C. The process is carried out at pressures in the range of 0.5 to 10 atmospheres. The inorganic salt of Li is mixed with TiO2 nanoparticles (˜20-25 nm) in the organic solvent. The solution is heated to a temperature and at a pressure to facilitate the diffusion of Li ions in to nanoparticles. After completion of the reaction, the powder is heat treated in O2 or an inert gas to form the desired phase.

Abstract: A data navigation system and a method that enable a user to selectively view multi-dimensional forecast data in a two-dimensional form. The data navigation system includes a representation means for representing the multi-dimensional data. The system also has a Graphical User Interface that displays the data in two-dimensional form and also enables the user to navigate through the multi-dimensional data through the Interface using an interaction means such as a keyboard, a mouse a voice-command, a touch screen and other such means. The system also has an identification means and an extraction means that identify and obtain the data to be displayed in the Interface from the representation means. The data navigation system can also be used to view any multi-dimensional data in two-dimensional form.

Abstract: A device for foot operation of the cover of a cooking instrument, such as a barbecue grill, includes a lever located so as to be operated by a foot, a lift support attached to the cover of the cooking instrument and a linkage connecting the foot operated lever and the lift support. A spring connected to the lift support assists in operating the lid with only a small amount of foot pressure. The foot operated lever can be moved so as to lock the cover in the open position. This enables the cover of the cooking instrument to be safely and conveniently operated in a “no hands” manner.

Abstract: A new class of carbon materials and their synthesis. The new carbon materials are formed by high pressure and high temperature processing of fullerene based carbon powder. The new carbon materials are harder than graphite and can be harder than steel (what the starting fullerenes are single wall nanotubes) or almost as hard as diamond (when the starting fullerened arm C60 buckyballs). The physical attributes of the materials can also be controlled by the pressing and heating parameters. These new carbon materials are conductive like graphite and unlike diamond which is an insulator. The materials can be formed by powder metallurgy techniques into any shape (cylinders, balls, tubes, rods, cones, foils, fibers or others). The new materials can also be readily doped, converted to diamond, formed within a porous composite or converted to diamond within the porous composite.

Abstract: The present invention is a confined space conditioning system, which is used to provide conditioning to localized zones of an enclosure. The confined space conditioning system consists of a conditioning unit and an enveloped space, enveloping the localized zone, connected to the conditioning unit. The conditioning unit uses a low wattage compressor and a heater element to generate cool, dehumidified air or warm conditioned air to the enveloped space, as is required by a user of the system. The used conditioned air is extracted from the enveloped space and is recirculated to the conditioning unit for reconditioning. The surfaces of the enveloped space are thermally insulated using thermally insulating media in order to minimize the cross flow of heat.

Abstract: A photonic structure for “white” light generation by phosphors under the excitation of a LED. The photonic structure mounts the LED and an optically transparent matrix having dispersed therein phosphors which will emit light under the excitation of the radiation of the LED. The transparent matrix may include nanoparticles for matching the index of refraction of the material of the matrix to that of the light generating phosphors. The matrix material may be readily formed by molding and formed into a variety of shapes including lenses for focusing the emitted light. A large number of the photonic structures may be arranged on a substrate to provide even illumination or other purposes. The phosphors dispersed in the matrix are preferably nanocrystalline.

Abstract: A system to provide effective removal of heat from a high power density device. The system has a heat spreader and a heat sink structure. The heat spreader is divided into one or more chambers. Electromagnetic pumps are placed inside each chamber in a configuration that facilitates easy circulation of liquid metal inside the chamber. The liquid metal preferably is an alloy of gallium and indium that has high electrical conductivity and high thermal conductivity. The liquid metal carries heat from a localized area (over the high power density device) and distributes it over the entire spreader. This results in a uniform distribution of heat on the base of the heat sink structure and hence effective removal of heat by the heat sink structure.

Abstract: Deposition of thin films or powders by reactive pulsed arc molecular beam deposition. To produce these films and powders, a reactive or non-reactive gas is pulsed between a pair of electrodes situated within a vacuum chamber. The gas can be either chemically inert, to produce pure cathode material films, or chemically reactive, to produce chemical compounds of the cathode material. A storage capacitor is discharged between the electrode pair during the gas pulse. The gas serves as a carrier to direct and transport the ablated material to a substrate which is placed inline with the gas pulse, on which a film or powder of the electrode material or a chemical compound of the electrode material is then coated.

Abstract: An X-ray imaging system utilizing a pixelated X-ray source and a X-ray imaging detector operated synchronously. The imaging system may be used in industrial and medical applications. The X-ray source and X-ray detector are synchronized such that a corresponding area of the X-ray detector is activated when the corresponding area of the X-ray source is emitting X-rays. Synchronized and adaptive emission and detection of the X-rays results in scatter rejection, improved image quality, and optimum exposure and dose reduction.

Abstract: A system to extract heat from a high power density device and dissipate heat at a convenient distance. The system circulates liquid metal in a closed conduit using one or more electromagnetic pumps for carrying away the heat from high power density device and rejecting the heat at a heat sink located at a distance. The system may make use of a thermoelectric generator to power the electromagnetic pumps by utilizing the temperature difference between the inlet and outlet pipes of the heat sink. The system also provides networks of primary and secondary closed conduits having series and parallel arrangements of electromagnetic pumps for dissipating heat from multiple devices at a remotely located heat sink.