Narlikar
Girija Narlikar, Bangalore IN
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20130054729 | SYSTEM AND METHOD FOR PRE-FETCHING AND CACHING CONTENT - A system and method for caching and pre-fetching content is disclosed. This invention relates to mobile devices and, more particularly but not exclusively, to delivering content to a mobile device. Existing systems employ different mechanisms for delivering content such as multimedia and the like to users of mobile device. Mechanisms such as broadcast services, delivery from the interne, Wi-Fi hotspots, Bluetooth kiosks etc face problems of offering innovative services to users due to insufficient network capacity, high end costs to consumers. The disclosed system delivers contents such as multimedia, data and the like by pre-fetching and caching techniques. The contents preferred by a user is identified and pre-fetched to access points located in vicinity of the user. The user can access the contents from the access points via a short range communication means such as Bluetooth, Infrared and so on. | 02-28-2013 |
Girija Narlikar, Maharashtra IN
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20130137446 | DYNAMIC REORGANIZATION OF CELL STRUCTURES IN WIRELESS NETWORKS - Dynamic reorganization of cell structures in wireless networks. The present invention relates to wireless communications and, more particularly, to energy usage of wireless equipments in wireless communications. Currently there are mechanisms in use that can selectively turn of carriers in a BTS depending on the traffic load. But due to the fixed costs of operating the base station even when there are no active users, turning off entire BTS will give more energy savings than simply reducing capacity by turning off carriers at low load. Embodiments herein detect a change in demand on the network and re-organize the cellular network by selectively turning off BTSs and appropriately increasing the coverage area of other BTSs, and arrive at a configuration that optimizes the energy consumption of the cellular network as a whole. | 05-30-2013 |
Girija J. Narlikar, Colaba IN
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20100146623 | METHOD AND APPARATUS FOR PATTERN MATCHING FOR INTRUSION DETECTION/PREVENTION SYSTEMS - A packet is compared to a pattern defined by a regular expression with back-references (backref-regex) in a single pass of a non-deterministic finite automaton corresponding to the backref-regex (backref-NFA) that includes representations for all backref-regex's back-references. The packet's characters are sequentially selected and analyzed against the backref-NFA until a match or no-match between the packet and pattern is determined. Upon selecting a character, a corresponding configurations-set is updated, where the set includes configurations associated with respective NFA-states of the backref-NFA and indicating whether the selected character is being matched against a back-reference. With the configurations-set being updated the comparison process proceeds along backref-NFA's NFA-states. The updated configurations-set includes configurations associated with NFA-states reachable from the configurations in the pre-updated set. When the configurations-set includes a final state, a match is determined. When the configurations-set becomes empty, or upon selection of all characters lacks the final state, a no-match is determined. | 06-10-2010 |
20100151851 | Method and apparatus for uploading content over wireless networks - Method and apparatus for uploading content from a user terminal in response to a request triggered at the user terminal to upload content is provided. An exemplary method includes initiating a test call at the user terminal to a wireless network in response to an indication to upload content from the user terminal, obtaining user-channel information for the test call and network-level state information for the user terminal during the test call, determining whether a user-channel condition and a network-level condition are satisfied based on the user-channel information and network-level state information respectively, and uploading the content to the wireless network in response to the user-channel condition and the network-level condition being satisfied. The user terminal obtains at the user terminal user-level state information and triggers the indication to upload content from the user terminal if the user-level condition is determined to be satisfied. | 06-17-2010 |
Girija J. Narlikar, Basking Ridge, NJ US
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20080242273 | Method and Apparatus for Providing Interactive Services to Users Using Unicast and Broadcast Wireless Networks - The invention includes a method and apparatus for providing interactive services using unicast wireless networks and broadcast wireless networks. A method includes receiving content interaction information indicative of interactions by a user with content presented at a wireless user terminal, obtaining at least one service parameter, and providing a service using the content interaction information and the at least one service parameter, wherein the service is provided using one of the unicast wireless network or the broadcast wireless network. The content for which content interaction information is received is provided to the wireless user terminal using a broadcast wireless network and the content interaction information is received over a unicast wireless network. The service that is provided may include providing modified content over the broadcast wireless network, providing personalized content over the unicast wireless network, operating a proxy for a network-based service, and the like. | 10-02-2008 |
20080242290 | Method and Apparatus for Providing Content to Users Using Unicast and Broadcast Wireless Networks - The invention includes a method and apparatus for providing content to user terminals. A method includes identifying a request for content from a user terminal, obtaining a network selection parameter for the content request, selecting, using the network selection parameter, a wireless network over which to propagate the requested content, and propagating the requested content toward the user terminal using the selected wireless network. The selected wireless network may be a unicast wireless network or a broadcast wireless network. | 10-02-2008 |
20080244040 | Method and Apparatus for Dynamically Pushing Content Over Wireless Networks - The invention includes a method and apparatus for dynamically pushing content over a wireless network A method includes obtaining network-level state information and user-level state information for a user in response to an indication that content is available for the user, determining whether a network-level condition is satisfied using the network-level state information, determining whether a user-level condition is satisfied using the user-level state information, and pushing the available content toward the user terminal of the user using the wireless network in response to the conditions being satisfied. The network-level state information includes cell utilization information for a cellular region associated with the user terminal of the user. The user-level state information includes at least one of a user channel quality, a user terminal power state, a user terminal battery power status, a user terminal memory status, at least one user terminal capability, and user subscription information for the user. | 10-02-2008 |
Girija J. Narlikar, Mumbai IN
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20140143874 | METHOD AND APPARATUS FOR PATTERN MATCHING FOR INTRUSION DETECTION/PREVENTION SYSTEMS - A system, method, apparatus and mechanism for estimating worst-case time complexity of a regular expression defining a pattern adapted for identifying malicious packets and comprising one or more back-references (backref-regex) by constructing a non-deterministic finite automaton (NFA) corresponding to the backref-regex (backref-NFA), wherein the backref-NFA comprises a plurality of NFA-states and a respectively labeled edge for each of the one or more back-references of the backref-regex; performing liveness analysis on the backref-NFA to determine for each NFA-state of the backref-NFA a set of back-references alive at the NFA-state; and determining a maximum number of alive back-references over the plurality of NFA-states, wherein the determined maximum number is indicative of the worst-case time complexity of the backref-regex. | 05-22-2014 |