Agarwal, MA
Abhinav Agarwal, Waltham, MA US
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20150146826 | INTEGRATED CIRCUIT IMPLEMENTATION OF METHODS AND APPARATUSES FOR MONITORING OCCUPANCY OF WIDEBAND GHz SPECTRUM, AND SENSING RESPECTIVE FREQUENCY COMPONENTS OF TIME-VARYING SIGNALS USING SUB-NYQUIST CRITERION SIGNAL SAMPLING - An ASIC for monitoring wideband GHz spectrum to sense respective frequency components present in the spectrum. The ASIC implements Fast Fourier Transform (FFT) techniques to facilitate identification of one or more frequency components of a sparse signal after the signal is sub-sampled at a rate below the Nyquist criterion. The ASIC computes a first Fast Fourier Transform (FFT) of a first sub-sampled set of samples of a time-varying signal representing the monitored spectrum and sampled at a first sampling rate, and further computes a second FFT of a second sub-sampled set of samples of the time-varying signal sampled at a second sampling rate different from the first sampling rate. In one example, each of the first FFT and the second FFT is a low-radix FFT to facilitate a low-power and low-cost ASIC implementation of wideband spectrum sensing. | 05-28-2015 |
Anant Agarwal, Weston, MA US
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20080256328 | Customizable memory indexing functions - Methods and apparatus related to memory indexing. Receiving indications of an indexing function for use with a memory. Performing indexing functions with a processor before addressing a memory location. Referencing a customizable lookup table to determine a memory location. Translating a computer program to control a computer system to use a desired indexing function. Determining desired indexing functions based on performance of a computer system. | 10-16-2008 |
20130204942 | ONLINE DISTRIBUTED INTERACTION - An interaction environment for presentation of content to a population of users includes either or both of a plurality of cohort interaction environments and one or more content-linked interaction environments. | 08-08-2013 |
Anuradha M. Agarwal, Weston, MA US
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20080253728 | Microphotonic waveguide including core/cladding interface layer - The invention provides a waveguide with a waveguide core having longitudinal sidewall surfaces, a longitudinal top surface, and a longitudinal bottom surface that is disposed on a substrate. An interface layer is disposed on at least one longitudinal sidewall surface of the waveguide core. A waveguide cladding layer is disposed on at least the waveguide core sidewall and top surfaces, over the interface layer. The waveguide of the invention can be produced by forming a waveguide undercladding layer on a substrate, and then forming a waveguide core on the undercladding layer. An interface layer is then formed on at least a longitudinal sidewall surface of the waveguide core, and an upper cladding layer is formed on a longitudinal top surface and on longitudinal sidewall surfaces of the waveguide core, over the interface layer. | 10-16-2008 |
20100187419 | THERMO-OPTIC INFRARED PIXEL AND FOCAL PLANE ARRAY - A surface plasmon polariton (SPP) pixel structure is provided. The SPP pixel structure includes a coupling structure that couples the probing light into the SPP mode by matching the in-plane wave vector by changing the refractive index of the coupling structure using thermo-optic effects to vary the coupling strength of the probing light into the SPP mode. An absorber layer is positioned on the coupling structure for absorbing incident infrared/thermal radiation being detected. | 07-29-2010 |
20100187530 | PHOTOCONDUCTORS FOR MID-/FAR-IR DETECTION - An infrared photodiode structure is provided. The infrared photodiode structure includes a doped semiconductor layer having ions of certain conductivity. An active photodetecting region is positioned on the doped semiconductor layer for detecting an infrared light signal. The active photodetecting region includes one or more amorphous semiconductor materials so as to allow for high signal-to-noise ratio being achieved by invoking carrier hopping and band conduction, under dark and illuminated conditions. | 07-29-2010 |
20100307579 | Pseudo-Periodic Structure for Use in Thin Film Solar Cells - A method of manufacturing a photovoltaic cell includes providing an active absorption layer, forming a pseudo-periodic grating adjacent to the active absorption layer, and forming a reflector adjacent to the pseudo-periodic grating. A photovoltaic cell includes an active absorption layer, a pseudo-periodic grating adjacent to the active absorption layer, and a reflector adjacent to the pseudo-periodic grating. | 12-09-2010 |
20110127547 | CAVITY-ENHANCED MULTISPECTRAL PHOTONIC DEVICES - A multispectral pixel structure is provided that includes a plurality of stacked cavity arrangements for emitting or detecting a plurality of specified wavelengths, wherein each stacked cavity arrangement having a photoactive layer for spectral emission or detection of one of the specified wavelengths. The photoactive layer is positioned within a resonant cavity stack and the resonant cavity stack being positioned between two adjacent mirror stacks. A plurality of coupling-matching layers are positioned between one or more of the stack mirror arrangements for controlling optical phase and coupling strength between emitted or incident light and resonant modes in each of the stacked cavity arrangements. | 06-02-2011 |
20110311180 | Glassy Surface Smoothing Layer for Integrated Waveguide - An integrated optical waveguide includes a substrate, a waveguide under-cladding layer disposed on the substrate, and a waveguide core, having top and sidewall surfaces, disposed on the under-cladding layer. A glassy surface smoothing layer disposed on the waveguide core top surface and sidewall surfaces and has a refractive index, relative to a refractive index of the waveguide core, that enables guided optical transmission through the waveguide core and the glassy surface smoothing layer. In fabrication of the optical waveguide, a waveguide under-cladding layer is formed on a substrate and a waveguide core having sidewall surfaces and a top surface is formed on the under-cladding layer. A liquid suspension comprising particles of a glassy material is applied on the top and sidewall surfaces of the waveguide core. The applied liquid glassy particle suspension is heated to form a glassy surface smoothing layer on the waveguide core top surface and sidewall surfaces. | 12-22-2011 |
20120154810 | Optical Device for Detection of Agent - An agent sensing system may comprise an emitter optical resonator, a functionalized optical resonator, and a reference optical resonator. The emitter optical resonator may be configured to emit light at one or more system peak wavelengths. The functionalized optical resonator may be optically coupled to the emitter optical resonator and configured to propagate the emitted light in the absence of a particular agent, and filter the emitted light in the presence of the particular agent. The reference optical resonator may be optically coupled to at least one of the emitter optical resonator and the functionalized optical resonator such that an intensity of light propagated by the reference optical resonator is based at least on whether light emitted by the emitter optical resonator is filtered or propagated by the functionalized optical resonator. | 06-21-2012 |
20130243383 | Athermal Photonic Waveguide With Refractive Index Tuning - In a photonic waveguide, there is provided an undercladding layer and a waveguide core, having a cross-sectional height and width, that is disposed on the undercladding layer. The waveguide core comprises a waveguide core material having a thermo-optic coefficient. A refractive index tuning cladding layer is disposed on top of the waveguide core. The refractive index tuning cladding layer comprises a refractive index tuning cladding material having an adjustable refractive index and an absorption length at a refractive index tuning radiation wavelength. A thermo-optic coefficient compensation cladding layer is disposed on top of the refractive index tuning cladding layer. The thermo-optic coefficient compensation cladding layer comprises a thermo-optic coefficient compensation material having a thermo-optic coefficient that is of opposite sign to the thermo-optic coefficient of the waveguide core material. The thermo-optic coefficient compensation cladding layer provides at least partial compensation for the waveguide core thermo-optic coefficient. | 09-19-2013 |
20140090686 | METHODS AND APPARATUS FOR CONCENTRATING PHOTOVOLTAICS - Provided in one embodiment is an article, comprising: a substrate comprising silicon; and a plurality of solar cells disposed over the substrate, wherein at least one of the plurality of the solar cells comprises one of: (i) a first semiconductor layer disposed over the substrate, the first layer comprising at least one semiconductor material; and (ii) a first Ge-containing layer disposed over the substrate, the first layer comprising a Ge-containing material, and a second layer disposed over the first layer, the second layer comprising at least one semiconductor material. At least some of the solar cells may comprise semiconductor materials of different bandgap values. | 04-03-2014 |
Anuradha Murthy Agarwal, Weston, MA US
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20140264030 | METHODS AND APPARATUS FOR MID-INFRARED SENSING - A chip-scale, air-clad semiconductor pedestal waveguide can be used as a mid-infrared (mid-IR) sensor capable of in situ monitoring of organic solvents and other analytes. The sensor uses evanescent coupling from a silicon or germanium waveguide, which is highly transparent in the mid-IR portion of the electromagnetic spectrum (e.g., between λ=1.3 μm and λ=6.5 μm for silicon and λ=1.3 μm and λ=12.0 μm for germanium), to probe the absorption spectrum of the fluid surrounding the waveguide. Launching a mid-IR beam into the waveguide exposed to a particular analyte causes attenuation of the evanescent wave's spectral components due to absorption by carbon, oxygen, hydrogen, and/or nitrogen bonds in the surrounding fluid. Detecting these changes at the waveguide's output provides an indication of the type and concentration of one or more compounds in the surrounding fluid. If desired, the sensor may be integrated onto a silicon substrate with a mid-IR light source and a mid-IR detector to form a chip-based spectrometer. | 09-18-2014 |
Dwarika P. Agarwal, Attleboro, MA US
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20090191089 | Gold alloy compositions formed by environmentally friendly process - Rose-color and yellow-color gold alloys are formed from a gold-base alloy containing silver and copper. Mining these elements is usually highly detrimental to the environmental. Environmentally friendly alloys are obtained through the use of recycled elements and elements recovered from mines utilizing specific guidelines. Jewelry manufactured from these environmentally friendly alloys may be more receptive to a consumer, resulting in a competitive advantage. | 07-30-2009 |
Kaitki Agarwal, Westford, MA US
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20090086742 | PROVIDING VIRTUAL SERVICES WITH AN ENTERPRISE ACCESS GATEWAY - Systems and methods to virtually and securely extend voice, data, and video services as well as applications on communication networks is provided. An access gateway device is used to provide interworking and extension of services from an enterprise network or a hosted enterprise network to a public network such as an IP Multimedia Subsystem (IMS) network. The access gateway device can also enable handoffs between an enterprise access point and the service provider's radio network while maintain the user's session. The access gateway can also extend services from the enterprise network to the service providers network and vice versa. | 04-02-2009 |
20120082158 | IP ADDRESS VERSION INTERWORKING IN COMMUNICATION NETWORKS - Systems and methods are provided for supporting IPv4-IPv6 interworking of SIP messages in wireless networks and IMS networks. The interworking can be provided to smooth migration to an all-IPv6 IMS network by allowing the use and support of existing legacy IPv4 infrastructure. This functionality may be provided by a call session control function (CSCF) interposed between a user equipment (UE) and an IMS core network with interworking functionality or an interworking module. This device serves as a back-to-back user agent (B2BUA), allocates IP addresses from a pool, performs next-hop route protocol discovery, and maintains and stores information within the gateway as well as interworking and rewriting IP addresses within network messages, while proxying and maintaining sessions between the UE and the IMS core network. This allows for faster call setup, reduced capex/opex, improved debuggability, increased capacity and subscriber density by call processing distribution, and better user experience. | 04-05-2012 |
20120244861 | PROVIDING LOCATION BASED SERVICES FOR MOBILE DEVICES - Systems and methods are provided that allow the delivery of location based services within a communication network. The location information can be retrieved using information from the mobile node when the mobile node registers in the network. The location information can then be cached or stored in one or more places in the communication network and correlated with the mobile node's addressing information. If a request for location based services is received without location based information, the gateway can use location based information regarding the mobile node to provide location based services. The gateway can enable non IMS mobile nodes to obtain IMS location based services or incompatible mobile nodes to obtain location based services. | 09-27-2012 |
20140086120 | Heterogeneous Mesh Network and a Multi-RAT Node Used Therein - This invention discloses a heterogeneous mesh network comprised of multiple radio access technology nodes, wherein nodes can function dynamically, switching roles between client and server. Moreover, these nodes can operate in a heterogeneous fashion with respect to one another. In an alternate embodiment, the invention describes a mesh network comprised of nodes operating over TV white-space. This invention additionally discloses self-organizing network embodiments and embodiments that include novel methods of monitoring operational parameters within a mesh network, adjusting those operational parameters, and creating and implementing routing tables. | 03-27-2014 |
20140092765 | Heterogeneous Self-Organizing Network for Access and Backhaul - This application discloses methods for creating self-organizing networks implemented on heterogeneous mesh networks. The self-organizing networks can include a computing cloud component coupled to the heterogeneous mesh network. In the methods and computer-readable mediums disclosed herein, a processor receives an environmental condition for a mesh network. The processor may have measured the environmental condition, or it could have received it from elsewhere, e.g., internally stored information, a neighboring node, a server located in a computing cloud, a network element, user equipment (“UE”), and the like. After receiving the environmental condition, the processor evaluates it and determines whether an operational parameter within the mesh network should change to better optimize network performance. | 04-03-2014 |
20140126410 | Heterogeneous Self-Organizing Network for Access and Backhaul - This application discloses methods for creating self-organizing networks implemented on heterogeneous mesh networks. The self-organizing networks can include a computing cloud component coupled to the heterogeneous mesh network. In the methods and computer-readable mediums disclosed herein, a processor receives an environmental condition for a mesh network. The processor may have measured the environmental condition, or it could have received it from elsewhere, e.g., internally stored information, a neighboring node, a server located in a computing cloud, a network element, user equipment (“UE”), and the like. After receiving the environmental condition, the processor evaluates it and determines whether an operational parameter within the mesh network should change to better optimize network performance. | 05-08-2014 |
20140133456 | Dynamic Multi-Access Wireless Network Virtualization - We disclose systems and methods of dynamically virtualizing a wireless communication network. The communication network is comprised of heterogeneous multi-RAT mesh nodes coupled to a computing cloud component. The computing cloud component virtualizes the true extent of the resources it manages and presents an interface to the core network that appears to be a single base station. | 05-15-2014 |
20140233412 | Methods of Incorporating an Ad Hoc Cellular Network Into a Fixed Cellular Network - In this invention, we disclose methods directed toward integrating an ad hoc cellular network into a fixed cellular network. The methods disclosed herein automate the creation and integration of these networks. In additional embodiments, we disclose methods for establishing a stand-alone, ad hoc cellular network. In either of these implementations, we integrate or establish an ad hoc cellular network using mobile ad hoc cellular base stations configured to transmit and receive over a variety of frequencies, protocols, and duplexing schemes. The methods flexibly and dynamically choose an access or backhaul configuration and radio characteristics to optimize network performance. Additional embodiments provide for enhancing an existing network's coverage as needed, establishing a local network in the event of a loss of backhaul coverage to the core network, and providing local wireless access service within the ad hoc cellular network. | 08-21-2014 |
20140269423 | Start-Up Sequence and Configuration for a Radio Node - In this invention we disclose methods of automatically configuring a wireless node when it initially powers on and seeks to integrate into an existing wireless network. The wireless node could be part of an ad hoc, software defined network. One such network could be LTE network. The auto-configuration methods disclosed herein can be executed on wireless nodes throughout their operation. In alternate embodiments, the methods disclosed could be used to create a new configuration based on changed environmental conditions, location or node capability change. These embodiments allow wireless nodes to migrate to better quality connections if they become available. | 09-18-2014 |
20140301327 | Methods of Incorporating an Ad Hoc Cellular Network Into a Fixed Cellular Network - In this invention, we disclose methods directed toward integrating an ad hoc cellular network into a fixed cellular network. The methods disclosed herein automate the creation and integration of these networks. In additional embodiments, we disclose methods for establishing a stand-alone, ad hoc cellular network. In either of these implementations, we integrate or establish an ad hoc cellular network using mobile ad hoc cellular base stations configured to transmit and receive over a variety of frequencies, protocols, and duplexing schemes. The methods flexibly and dynamically choose an access or backhaul configuration and radio characteristics to optimize network performance. Additional embodiments provide for enhancing an existing network's coverage as needed, establishing a local network in the event of a loss of backhaul coverage to the core network, and providing local wireless access service within the ad hoc cellular network. | 10-09-2014 |
20140348023 | Methods of Incorporating an Ad Hoc Cellular Network Into a Fixed Cellular Network - In this invention, we disclose methods directed toward integrating an ad hoc cellular network into a fixed cellular network. The methods disclosed herein automate the creation and integration of these networks. In additional embodiments, we disclose methods for establishing a stand-alone, ad hoc cellular network. In either of these implementations, we integrate or establish an ad hoc cellular network using mobile ad hoc cellular base stations configured to transmit and receive over a variety of frequencies, protocols, and duplexing schemes. The methods flexibly and dynamically choose an access or backhaul configuration and radio characteristics to optimize network performance. Additional embodiments provide for enhancing an existing network's coverage as needed, establishing a local network in the event of a loss of backhaul coverage to the core network, and providing local wireless access service within the ad hoc cellular network. | 11-27-2014 |
20140348024 | Methods of Incorporating an Ad Hoc Cellular Network Into a Fixed Cellular Network - In this invention, we disclose methods directed toward integrating an ad hoc cellular network into a fixed cellular network. The methods disclosed herein automate the creation and integration of these networks. In additional embodiments, we disclose methods for establishing a stand-alone, ad hoc cellular network. In either of these implementations, we integrate or establish an ad hoc cellular network using mobile ad hoc cellular base stations configured to transmit and receive over a variety of frequencies, protocols, and duplexing schemes. The methods flexibly and dynamically choose an access or backhaul configuration and radio characteristics to optimize network performance. Additional embodiments provide for enhancing an existing network's coverage as needed, establishing a local network in the event of a loss of backhaul coverage to the core network, and providing local wireless access service within the ad hoc cellular network. | 11-27-2014 |
20140348083 | Methods of Incorporating an Ad Hoc Cellular Network Into a Fixed Cellular Network - In this invention, we disclose methods directed toward integrating an ad hoc cellular network into a fixed cellular network. The methods disclosed herein automate the creation and integration of these networks. In additional embodiments, we disclose methods for establishing a stand-alone, ad hoc cellular network. In either of these implementations, we integrate or establish an ad hoc cellular network using mobile ad hoc cellular base stations configured to transmit and receive over a variety of frequencies, protocols, and duplexing schemes. The methods flexibly and dynamically choose an access or backhaul configuration and radio characteristics to optimize network performance. Additional embodiments provide for enhancing an existing network's coverage as needed, establishing a local network in the event of a loss of backhaul coverage to the core network, and providing local wireless access service within the ad hoc cellular network. | 11-27-2014 |
20140369354 | SCALABILITY OF PROVIDING PACKET FLOW MANAGEMENT - Systems and methods for managing packet flows in a communication network are provided. Packet information can be cached on different levels and used to avoid external queries. The cache information can also be correlated with other types of information, such as location information, to be able to serve that information quicker than if one or more external queries were to be made. A demux manager can provide routing and session setup, by routing packets that already have a session to the session manager and assigning packets to a session manager if they are not already assigned to a session. The tiered architecture also provides scalability to many users and minimizes delays even during high call volumes because the load can be distributed well across the gateway's resources. | 12-18-2014 |
20150045063 | Multi-RAT Node Used for Search and Rescue - Systems and methods are presented for using a mobile multi-radio access technology (multi-RAT) device for locating an individual, for example, in a search-and-rescue application. The multi-RAT device may permit the individual's cell phone to attach to the mobile multi-RAT device, and then may use a directional antenna to locate the individual. Various embodiments of such a device are described. | 02-12-2015 |
20150063214 | Heterogeneous Mesh Network and a Multi-RAT Node Used Therein - This invention discloses a heterogeneous mesh network comprised of multiple radio access technology nodes, wherein nodes can function dynamically, switching roles between client and server. Moreover, these nodes can operate in a heterogeneous fashion with respect to one another. In an alternate embodiment, the invention describes a mesh network comprised of nodes operating over TV white-space. This invention additionally discloses self-organizing network embodiments and embodiments that include novel methods of monitoring operational parameters within a mesh network, adjusting those operational parameters, and creating and implementing routing tables. | 03-05-2015 |
20150078167 | Systems and Methods for Providing LTE-Based Backhaul - Systems and methods are disclosed for enabling a mesh network node to switch from a base station role to a user equipment role relative to a second mesh network node, and vice versa. By switching roles in this manner, the mesh network node may be able to benefit from increased uplink or downlink speed in the new role. This role reversal technique is particularly useful when using wireless protocols such as LTE that are asymmetric and allow differing throughput on uplink and downlink connections. Methods for determining whether to perform role reversal are disclosed, and methods for using role reversal in mesh networks comprising greater than two nodes are also disclosed. | 03-19-2015 |
20150094114 | Adjusting Transmit Power Across a Network - Systems and methods are disclosed for adjusting transmit power in a wireless network. In one embodiment, a method is disclosed that includes identifying a selected base station with a first coverage area for adjustment of transmit power; identifying a plurality of neighboring base stations with coverage areas nearby the first coverage area; retrieving a plurality of signal strength measurements from a plurality of mobile devices within the coverage areas of the plurality of neighboring base stations; determining, based on the plurality of measurements, an effect on the plurality of mobile devices within the coverage areas of the plurality of neighboring base stations; and sending an instruction for adjustment of transmit power to the selected base station. | 04-02-2015 |
20150098385 | Multicast and Broadcast Services Over a Mesh Network - A system is disclosed for providing multicast services to mobile devices, comprising a first network node providing a radio access network to a mobile device; a second network node coupled to the first network node and providing backhaul routing for the first network node; a controller node, coupled to both the first and the second network node and to a multicast packet gateway, wherein the controller node provides a virtualized interface of a single network node to the multicast packet gateway, thereby virtualizing the first and second network nodes to the multicast packet gateway such that the multicast packet gateway may be enabled to send a multicast data stream to the first and the second network nodes via the controller node. | 04-09-2015 |
20150257051 | Federated X2 Gateway - A gateway for X2 interface communication is provided, including: an X2 internal interface for communicating with, and coupled to, a plurality of radio access networks (RANs); and an X2 external interface for communicating with, and coupled to, a destination outside of the plurality of RANs, the X2 external interface further including a single X2 endpoint for the plurality of radio access networks, such that the X2 external interface provides a single interface for an external macro cell or core network to interact with the plurality of radio access networks. The gateway may further include a handover module for maintaining X2 signaling associations and transactions for incoming and outbound handovers, including X2 to S1 and S1 to X2 translation. | 09-10-2015 |
20150327148 | Heterogeneous Self-Organizing Network for Access and Backhaul - This application discloses methods for creating self-organizing networks implemented on heterogeneous mesh networks. The self-organizing networks can include a computing cloud component coupled to the heterogeneous mesh network. In the methods and computer-readable mediums disclosed herein, a processor determines if a user equipment (UE) should hand over its service from a base station to a multi-radio access technology (RAT) node, based on heuristics including one or more of: a distance traveled over a time T | 11-12-2015 |
Mayank Agarwal, Ashland, MA US
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20110047456 | Method and Apparatus for Text Input - A method and apparatus for text entry are provided. The method provides a keypad comprising four directional keys and a center selection key, and assigns a set of letters to each of the four directional keys. A representation of the set of letters assigned to each of the four directional keys is provided. A sequence of selected directional keys is received in accordance with a user input, and in accordance with the selected directional keys, the set of letters assigned to each of the selected directional keys are selectively passed to a parsing algorithm. The parsing algorithm determines a user intended text input based upon the passed sequence of letter groupings. | 02-24-2011 |
20130046544 | MULTIMODAL TEXT INPUT SYSTEM, SUCH AS FOR USE WITH TOUCH SCREENS ON MOBILE PHONES - A system and method for entering text from a user includes a programmed processor that receives inputs from the user and disambiguates the inputs to present word choices corresponding to the text. In one embodiment, inputs are received in two or more modalities and are analyzed to present the word choices. In another embodiment, a keyboard is divided into zones each of which represents two more input characters. A sequence of zones selected by the user is analyzed to present word choices corresponding to the zone selected. | 02-21-2013 |
20150293602 | MULTIMODAL TEXT INPUT SYSTEM, SUCH AS FOR USE WITH TOUCH SCREENS ON MOBILE PHONES - A system and method for entering text from a user includes a programmed processor that receives inputs from the user and disambiguates the inputs to present word choices corresponding to the text. In one embodiment, inputs are received in two or more modalities and are analyzed to present the word choices. In another embodiment, a keyboard is divided into zones each of which represents two more input characters. A sequence of zones selected by the user is analyzed to present word choices corresponding to the zone selected. | 10-15-2015 |
Mehul Agarwal, Boston, MA US
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20150178281 | DETERMINING WHETHER A USER HAS SEEN A CONTENT ITEM - Embodiments of the invention determine whether a user has seen a content item based on at least two factors: a measure of the area of a content item that has been displayed on a screen of the user's device and a length of time that the content item has been displayed on the screen of the user's device. The area of a content item that has been displayed is detected, and the length of time that the content item has been displayed is detected. An aggregate score for the content item is determined based at least in part on the detected area and the detected length of time. Responsive to the aggregate score exceeding a threshold, it is determined that the content item has been seen by the user. | 06-25-2015 |
20150186491 | PERSONALIZED ELECTRONIC MAGAZINE - An personalized electronic magazine system includes an indexing module that stores topics related to various items available via a database. A user profile manager determines topics of interest to a particular user, and a recommendation generator uses the topic information from the indexing module and the topic information from the profile manager to generate recommended content to present to the user. | 07-02-2015 |
20150186531 | Recommended News Edition on a Map Using Geo Entities - Described embodiments enable the presentation to a user of news articles or other content that is of likely interest to a user and that is geographically relevant to the user's location or region of interest. A news delivery system includes an ingest module that assigns topics and locations to available content, a profile engine that determines profile topics and geographic locations that a particular user finds relevant, and a news delivery module that selects content for the user based on the operation of the ingest module and the profile engine. In one embodiment, the profile engine performs decay processing to remove stale topics and locations from a user's profile. In related aspects, the profile engine maintains multiple profiles for the user. | 07-02-2015 |
20150186532 | Generating a News Timeline - Described embodiments enable the presentation to a user of news articles or other content that is of likely interest to a user and that is temporally and/or geographically relevant to the user's location or region of interest. A news delivery system includes an ingest module that assigns topics, locations and dates to available content, a profile engine that determines profile topics and geographic locations that a particular user finds relevant, and a news delivery module that selects content for the user based on the operation of the ingest module and the profile engine and the desired timeframe. In one embodiment, the profile engine performs decay processing to remove stale topics and locations from a user's profile. In related aspects, the profile engine maintains multiple profiles for the user. | 07-02-2015 |
20150264115 | Analytics-based Update of Digital Content - Content on a client device is updated. Analytics data describing how a user uses the client device to consume digital content are received. The analytics data are generated by the client device responsive to observations of how the user uses the client device to consume digital content. A prediction model is generated based on the analytics data and used to predict when the user will consume digital content on the client device. Prediction data describing the prediction are provided to the client device. The client device uses the prediction data to request updated digital content prior to when the user is predicted to consume digital content on the client device. | 09-17-2015 |
Mehul Agarwal, Cambridge, MA US
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20130246157 | INSTANT ELECTRONIC BOOK CLUB - An electronic book club system prompts a user ordering a book to join a club that corresponds to various characteristics of the user, such as the user's reading pace, geography and other interests. A social networking facility manages various aspects of the operation of the book club. Roles for book club members are selected to enhance user interest in the book club. Financial incentives are also provided to incentivize users to become book club members. | 09-19-2013 |
Piyush Agarwal, Billerica, MA US
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20150312360 | DETERMINING ANONYMOUSLY IDENTIFIED USERS IN MESSAGE CONTENT - A computer detects an entry of content by a first user in a collaboration application and determines the entry of content contains an identification of a second user, the identification indicating the entry of content and the identification are to be visible only to the first user and the second user. Responsive to determining the entry of content contains the identification of a second user, the computer copies the entry of content. The computer then sends the copied entry of content to the second user in the collaboration application. | 10-29-2015 |
Piyush K. Agarwal, Billerica, MA US
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20150334072 | SYMBOLIC REFERENTIAL THIRD-PARTY NOTIFICATION - User input including a social network notification symbol followed by a social network tag is detected in association with a social network user interface. The social network tag includes a text keyword that identifies a social network topic within the social network. A subset of social network users within the social network that follow the social network topic identified by the text keyword of the social network tag is determined. A referential third-party social network user notification subset within the social network is defined as the determined subset of social network users within the social network that follow the social network topic. A referential third-party social network notification is published to the defined referential third-party social network user notification subset within the social network. The referential third-party social network notification includes the detected user input that includes the social network notification symbol followed by the social network tag. | 11-19-2015 |
20150334073 | SYMBOLIC REFERENTIAL THIRD-PARTY NOTIFICATION - User input including a social network notification symbol followed by a social network tag is detected in association with a social network user interface. The social network tag includes a text keyword that identifies a social network topic within the social network. A subset of social network users within the social network that follow the social network topic identified by the text keyword of the social network tag is determined. A referential third-party social network user notification subset within the social network is defined as the determined subset of social network users within the social network that follow the social network topic. A referential third-party social network notification is published to the defined referential third-party social network user notification subset within the social network. The referential third-party social network notification includes the detected user input that includes the social network notification symbol followed by the social network tag. | 11-19-2015 |
Sadhana Agarwal, Cambridge, MA US
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20120184035 | Methods and Compositions For Reprogramming Cells - Methods and compositions are provided for reprogramming cells. In an exemplary embodiment, fibroblasts are reprogrammed to adopt a skeletal, cardiac, or smooth muscle cell fate. Cell and tissue therapies using said methods and compositions are also disclosed. | 07-19-2012 |
Sandip Agarwal, Somerville, MA US
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20090197054 | Stencils With Removable Backings for Forming Micron-Sized Features on Surfaces and Methods of Making and Using the Same - The present invention is directed to methods for patterning substrates using elastomeric stencils having removable backings and methods of preparing the stencils. | 08-06-2009 |
20100252955 | Methods of Patterning Substrates Using Microcontact Printed Polymer Resists and Articles Prepared Therefrom - The present invention is directed to methods for patterning substrates using contact printing to form patterns comprising a polymer, using the patterns formed therefrom as resists, and process products formed by the process. | 10-07-2010 |
20110076448 | Methods for Patterning Substrates Using Heterogeneous Stamps and Stencils and Methods of Making the Stamps and Stencils - The present invention is directed to heterogeneous stamp and stencil compositions, methods for patterning substrates using contact printing processes employing the heterogeneous stamps and stencils, and products formed by the contact printing processes. | 03-31-2011 |
20110171430 | MICROADHESIVE SYSTEMS AND METHODS OF MAKING AND USING THE SAME - The present invention is directed to adhesive systems and methods of making and using such systems. Exemplary adhesive systems comprise protrusions and/or grooves that can interleave to form a reversible adhesive interaction. | 07-14-2011 |
20150284613 | MicroAdhesive Systems and Methods of Making and Using the Same - The present invention is directed to adhesive systems and methods of making and using such systems. Exemplary adhesive systems comprise protrusions and/or grooves that can interleave to form a reversible adhesive interaction. | 10-08-2015 |
Sandip Agarwal, Cambridge, MA US
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20080230773 | Polymer Composition for Preparing Electronic Devices by Microcontact Printing Processes and Products Prepared by the Processes - The present invention is directed to methods for patterning substrates using contact printing processes and inks comprising an organic semiconductive or semiconductive polymer, inks for use with the processes, and products formed by the processes. | 09-25-2008 |
20090041984 | Structured Smudge-Resistant Coatings and Methods of Making and Using the Same - The present invention is directed to smudge-resistant coatings, methods to prepare the coatings, and products prepared by the methods. | 02-12-2009 |
20130266762 | Structured Smudge-Resistant Coatings and Methods of Making and Using the Same - The present invention is directed to smudge-resistant coatings, methods to prepare the coatings, and products prepared by the methods. | 10-10-2013 |
Sandip Agarwal, Medford, MA US
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20130182328 | Structured Smudge-Resistant Anti-Reflective Coatings and Methods of Making and Using the Same - The present invention is directed to articles comprising smudge-resistant anti-reflective surfaces, and products and devices comprising the articles. | 07-18-2013 |
Shiuli Agarwal, Somerville, MA US
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20110217705 | METHODS AND COMPOSITIONS FOR SEQUENCE-SPECIFIC PURIFICATION AND MULTIPLEX ANALYSIS OF NUCLEIC ACIDS - Methods and materials for determining the presence of at least one nucleic acid in a sample are provided, said methods comprising (1) a purification step using sequence specific hybrid capture; (2) an amplification step; and (3) a detection step using two separate sequence-specific polynucleotide probes. Also provided are nucleic acids comprising SEQ ID NO: 1 to SEQ ID NO: 727 and nucleic acid probes and probe sets comprising the same. | 09-08-2011 |
20120045756 | METHODS AND COMPOSITIONS FOR SEQUENCE-SPECIFIC PURIFICATION AND MULTIPLEX ANALYSIS OF NUCLEIC ACIDS - Methods and materials for determining the presence of at least one nucleic acid in a sample are provided, said methods comprising (1) a purification step using sequence specific hybrid capture; (2) an amplification step; and (3) a detection step comprising contacting the target nucleic acid with a plurality of detectably labeled nucleic acid detection probes, wherein each (a) bears a different detectable label from the other detection probes, and/or (b) has a different melting temperature from probes bearing the same detectable label. Also disclosed are compositions and kits for use in such a method. | 02-23-2012 |
Shivani Agarwal, Waltham, MA US
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20110145175 | Methods, Systems and Media Utilizing Ranking Techniques in Machine Learning - Methods, systems and media are taught utilizing ranking techniques in machine learning to learn a ranking function. Specifically, ranking algorithms are applied to learn a ranking function that advantageously minimizes ranking error as a function of targeted ranking order discrepancies between a predetermined first ranking of a training plurality of data elements and a second ranking of the training plurality of data elements by the ranking function. The ranking algorithms taught may be applied to ranking representations of chemical structures and may be particularly advantageous in the field of drug discovery, e.g., for prioritizing chemical structures for drug screenings. | 06-16-2011 |
Suneet Agarwal, Belmont, MA US
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20110151447 | METHOD TO PRODUCE INDUCED PLURIPOTENT STEM (IPS) CELLS FROM NON-EMBRYONIC HUMAN CELLS - The invention provides methods for generating induced pluripotent stem (iPS) cells from normal and mutant adult cells, as well as the iPS cells so generated from such methods. In some aspects, iPS cells are generated by ectopically expressing SOX2 and OCT4 nucleic acids in such adult cells. Other nucleic acids such as but not limited to MYC may also be ectopically expressed in such adult cells in the methods described herein. | 06-23-2011 |
20110236894 | SELECTIVE OXIDATION OF 5-METHYLCYTOSINE BY TET-FAMILY PROTEINS - The present invention provides for novel methods for regulating and detecting the cytosine methylation status of DNA. The invention is based upon identification of a novel and surprising catalytic activity for the family of TET proteins, namely TET1, TET2, TET3, and CXXC4. The novel activity is related to the enzymes being capable of converting the cytosine nucleotide 5-methylcytosine into 5-hydroxymethylcytosine by hydroxylation. | 09-29-2011 |
20130177912 | SELECTIVE OXIDATION OF 5-METHYLCYTOSINE BY TET-FAMILY PROTEINS - The present invention provides for novel methods for regulating and detecting the cytosine methylation status of DNA. The invention is based upon identification of a novel and surprising catalytic activity for the family of TET proteins, namely TET1, TET2, TET3, and CXXC4. The novel activity is related to the enzymes being capable of converting the cytosine nucleotide 5-methylcytosine into 5-hydroxymethylcytosine by hydroxylation. | 07-11-2013 |
Suresh Agarwal, Hopkinton, MA US
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20110152867 | Articulating Tool and Methods of Using - Disclosed are embodiments of an articulating tool having a head that articulates and is capable of maintaining an angle for drilling or placing a fastener into a bone. The articulating tool includes a housing, an articulating head, a rotatable drive shaft, and a driver tip connected to the distal shaft portion. The articulating tool may be constructed and arranged to move between a first position and a second position, wherein in the first position and the second position the articulating head and the rotatable drive shaft are at different angles with respect to the longitudinal axis of the housing. | 06-23-2011 |
Suresh K. Agarwal, Hopkinton, MA US
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20140052194 | ARTICULATING TOOL AND METHODS OF USING - Disclosed are embodiments of an articulating tool having a head that articulates and is capable of maintaining an angle for drilling or placing a fastener into a bone. The articulating tool includes a housing, an articulating head, a rotatable drive shaft, and a driver tip connected to the distal shaft portion. The articulating tool may be constructed and arranged to move between a first position and a second position, wherein in the first position and the second position the articulating head and the rotatable drive shaft are at different angles with respect to the longitudinal axis of the housing. | 02-20-2014 |
Vineet Agarwal, Andover, MA US
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20140039895 | METHOD FOR USING PAUSES DETECTED IN SPEECH INPUT TO ASSIST IN INTERPRETING THE INPUT DURING CONVERSATIONAL INTERACTION FOR INFORMATION RETRIEVAL - A method for using speech disfluencies detected in speech input to assist in interpreting the input is provided. The method includes providing access to a set of content items with metadata describing the content items, and receiving a speech input intended to identify a desired content item. The method further includes detecting a speech disfluency in the speech input and determining a measure of confidence of a user in a portion of the speech input following the speech disfluency. If the confidence measure is lower than a threshold value, the method includes determining an alternative query input based on replacing the portion of the speech input following the speech disfluency with another word or phrase. The method further includes selecting content items based on comparing the speech input, the alternative query input (when the confidence measure is low), and the metadata associated with the content items. | 02-06-2014 |
20140040274 | DISAMBIGUATING USER INTENT IN CONVERSATIONAL INTERACTION SYSTEM FOR LARGE CORPUS INFORMATION RETRIEVAL - A method of disambiguating user intent in conversational interactions for information retrieval is disclosed. The method includes providing access to a set of content items with metadata describing the content items and providing access to structural knowledge showing semantic relationships and links among the content items. The method further includes providing a user preference signature, receiving a first input from the user that is intended by the user to identify at least one desired content item, and determining an ambiguity index of the first input. If the ambiguity index is high, the method determines a query input based on the first input and at least one of the structural knowledge, the user preference signature, a location of the user, and the time of the first input and selects a content item based on comparing the query input and the metadata associated with the content item. | 02-06-2014 |
20140156621 | METHOD OF AND SYSTEM FOR CONDUCTING PERSONALIZED FEDERATED SEARCH AND PRESENTATION OF RESULTS THEREFROM - The present disclosure provides user-interface methods and systems for submitting search requests to search engines and presenting search results therefrom customized using content preferences learned about a user, comprising sending query information to at least two search engines, including a query identifying desired content, and user information, including context information describing the environment in which the query information is being sent, and a user signature representing content preferences learned about the user; receiving at least one set of a search result and auxiliary information from the at least one search engine in response to sending the query information, including information describing attributes of the search result that led to the search result being chosen by the at least one search engine; ordering the at least one search result based at least in part on the auxiliary information; and presenting the ordered search results to the user. | 06-05-2014 |
20150254355 | METHOD OF AND SYSTEM FOR CONDUCTING PERSONALIZED FEDERATED SEARCH AND PRESENTATION OF RESULTS THEREFROM - The present disclosure provides user-interface methods and systems for submitting search requests to search engines and presenting search results therefrom customized using content preferences learned about a user, comprising sending query information to at least two search engines, including a query identifying desired content, and user information, including context information describing the environment in which the query information is being sent, and a user signature representing content preferences learned about the user; receiving at least one set of a search result and auxiliary information from the at least one search engine in response to sending the query information, including information describing attributes of the search result that led to the search result being chosen by the at least one search engine; ordering the at least one search result based at least in part on the auxiliary information; and presenting the ordered search results to the user. | 09-10-2015 |
Vivek Agarwal, Marlborough, MA US
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20100318612 | Apparatus and Method for Email Storage - Embodiments of the present invention provide an apparatus for storing emails, comprising a neural network arranged to receive information associated with an email, to determine a storage location of the email according to one or more of the attributes of the email and to output information identifying the determined storage location. | 12-16-2010 |