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Balasubramanian, CA

Adoor Balasubramanian, Cupertino, CA US

Patent application numberDescriptionPublished
20110103399Tunnel Path MTU Discovery - A solution for tunnel path MTU discovery includes, at a first network device configured as an origination endpoint for a tunnel, storing a keep-alive packet having a size of an interface maximum transmission unit (MTU), the keep-alive packet indicating the packet should not be fragmented, the second network device configured as a termination endpoint for the tunnel. If the sending fails, the size of the keep-alive packet is iteratively changed to converge upon a path MTU, where the path MTU is the size of a largest keep-alive packet that can be sent from the first network device to the second network device without fragmentation.05-05-2011

Adoor V. Balasubramanian, Cupertino, CA US

Patent application numberDescriptionPublished
20080244282Managing Power Allocation To Ethernet Ports In The Absence Of Mutually Exclusive Detection And Powering Cycles In Hardware - A method of allocating power to ports in an Ethernet switch, including: (1) assigning a configuration power to a selected port, wherein the assigned configuration power is less than a power supplied by the selected port to a powered, (2) enabling and powering the selected port in a single indivisible step, (3) determining the power limit of a device coupled to the selected port, (4) comparing the power supplied by the selected port to the device with the configuration power assigned to the selected port, and (5) if the power supplied by the selected port to the device is greater than the configuration power assigned to the selected port, then increasing the configuration power of the selected port to correspond with the power limit of the device.10-02-2008
20090279423Recovering from Failures Without Impact on Data Traffic in a Shared Bus Architecture - Methods of detecting and recovering from communication failures within an operating network switching device that is switching packets in a communication network, and associated structures. The communication failures addressed involve communications between the packet processors and a host CPU over a shared communications bus, e.g., PCI bus. The affected packet processor(s)—which may be all or a subset of the packet processors of the network switch—may be recovered without affecting hardware packet forwarding through the affected packet processors. This maximizes the up time of the network switching device. Other packet processor(s), if any, of the network switching device, which are not affected by the communication failure, may continue their normal packet forwarding, i.e., hardware forwarding that does not involve communications with the host CPU as well as forwarding or other operations that do involve communications with the host CPU.11-12-2009

Balamurugan Balasubramanian, Santa Clara, CA US

Patent application numberDescriptionPublished
20090063564Statistical design closure - A method of statistical design closure is disclosed. The method generally includes the steps of (A) reading statistical data from a database, the statistical data defining a plurality of chip yield improvements, one of the chip yield improvements in each one of a plurality of design closure categories respectively, the chip yield improvements capturing historically trends based on a plurality of previous projects, (B) calculating a plurality of targets of a current design closure project based on the statistical data, one of the targets in each one of the design closure categories respectively and (C) generating a resource report to a user that indicates a plurality of resources expected to be used the current design closure project.03-05-2009

Balamurugan Balasubramanian, San Jose, CA US

Patent application numberDescriptionPublished
20090282307Optimizing test code generation for verification environment - A method of optimizing test code generation is disclosed. The method generally includes the steps of (A) reading from a database (i) a plurality of assertions, (ii) a testbench and (iii) a target code coverage all of a design under test, (B) generating together (i) a plurality of first test vectors to test the assertions and (ii) a plurality of second test vectors applicable to the testbench, (C) identifying one or more redundant test vector sets between the first test vectors and the second test vectors and (D) generating the test code to test the design under test on the testbench using a subset of the first test vectors and the second test vectors, the subset comprising single instances of the redundant test vector sets.11-12-2009
20100083195CONTROL SIGNAL SOURCE REPLICATION - Disclosed is a method of replicating control signal sources, comprising: receiving a description of a functional block that comprises at least one of, a plurality of multiplexer structures, a plurality of memory blocks, and a combination of at least one multiplexer structure and at least one memory block; identifying a control signal that controls said at least one of, said plurality of multiplexer structures, said plurality of memory blocks, and said combination of at least one multiplexer structure and at least one memory block; and, determining a first replica control signal and a second replica control signal, said first replica control signal and said second replica control signal collectively functioning as said control signal to control said at least one of, said plurality of multiplexer structures, said plurality of memory blocks, and said combination of at least one multiplexer structure and at least one memory block.04-01-2010
20100217564ADVANCED PHYSICAL SIMULATOR - A method of physical simulation of an integrated circuit design comprising the steps of (A) reading design information for an integrated circuit from a computer readable storage medium, (B) reading library information and physical design information from the computer readable storage medium, (C) simulating the integrated circuit design based upon the library information and the physical design information using a computer, where the simulation of the integrated circuit design provides signoff accurate results and (D) determining whether the integrated circuit design meets one or more performance goals based upon results of the simulation of the integrated circuit design.08-26-2010

Chandramouli Balasubramanian, San Jose, CA US

Patent application numberDescriptionPublished
20090190552FLEXIBLE MOBILE IP FOREIGN AGENT ARCHITECTURE FOR ENABLING CONVERGED SERVICES - A method and apparatus for flexible Mobile IP foreign agent architecture for enabling converged services are described herein. According to one embodiment of the invention, a packet is received over a circuit bound with a converged services domain of a network element. The converged services domain enables forwarding of wired and wireless traffic to a plurality of destination network elements. Upon determining that the circuit is capable of carrying Mobile Internet Protocol (IP) packets, the packet is processed according to an entry ma Mobile IP forwarding information base upon determining that the packet has a corresponding entry in the Mobile IP forwarding information base, and the packet is processed according to a different entry in an IP forwarding information base upon determining that the packet does not have an entry in the Mobile IP forwarding information base. Other methods and apparatuses are also described.07-30-2009
20090248708Method and Apparatus for Mobility Agent Recovery - Techniques for recovering Mobile Internet Protocol (IP) session(s) of a mobility agent in a Mobile IP network are described herein. In one embodiment of the invention, for each mobility session associated with a mobility agent, the mobility agent distributively backs up mobility agent specific information to the mobility agent peer associated with that mobility session. The mobility agent specific information is not used by the mobility agent peer. Upon the mobility agent inadvertently losing at least one mobility session, the mobility agent recovers the stored mobility agent specific information associated with those sessions from the mobility agent peers respectively associated with those sessions. Other methods and apparatuses are also described.10-01-2009
20110202663Method and Apparatus for Mobility Agent Recovery - Techniques for recovering Mobile Internet Protocol (IP) session(s) of a mobility agent in a Mobile IP network are described herein. In one embodiment of the invention, for each mobility session associated with a mobility agent, the mobility agent distributively backs up mobility agent specific information to the mobility agent peer associated with that mobility session. The mobility agent specific information is not used by the mobility agent peer. Upon the mobility agent inadvertently losing at least one mobility session, the mobility agent recovers the stored mobility agent specific information associated with those sessions from the mobility agent peers respectively associated with those sessions. Other methods and apparatuses are also described.08-18-2011
20110202664Method and Apparatus for Mobility Agent Recovery - Techniques for recovering Mobile Internet Protocol (IP) session(s) of a mobility agent in a Mobile IP network are described herein. In one embodiment of the invention, for each mobility session associated with a mobility agent, the mobility agent distributively backs up mobility agent specific information to the mobility agent peer associated with that mobility session. The mobility agent specific information is not used by the mobility agent peer. Upon the mobility agent inadvertently losing at least one mobility session, the mobility agent recovers the stored mobility agent specific information associated with those sessions from the mobility agent peers respectively associated with those sessions. Other methods and apparatuses are also described.08-18-2011
20110202671Method and Apparatus for Mobility Agent Recovery - Techniques for recovering Mobile Internet Protocol (IP) session(s) of a mobility agent in a Mobile IP network are described herein. In one embodiment of the invention, for each mobility session associated with a mobility agent, the mobility agent distributively backs up mobility agent specific information to the mobility agent peer associated with that mobility session. The mobility agent specific information is not used by the mobility agent peer. Upon the mobility agent inadvertently losing at least one mobility session, the mobility agent recovers the stored mobility agent specific information associated with those sessions from the mobility agent peers respectively associated with those sessions. Other methods and apparatuses are also described.08-18-2011
20110305235FLEXIBLE MOBILE IP FOREIGN AGENT ARCHITECTURE FOR ENABLING CONVERGED SERVICES - A method and apparatus for flexible Mobile IP foreign agent architecture for enabling converged services are described herein. According to one embodiment of the invention, a packet is received over a circuit bound with a converged services domain of a network element. The converged services domain enables forwarding of wired and wireless traffic to a plurality of destination network elements. Upon determining that the circuit is capable of carrying Mobile Internet Protocol (IP) packets, the packet is processed according to an entry in a Mobile IP forwarding information base upon determining that the packet has a corresponding entry in the Mobile IP forwarding information base, and the packet is processed according to a different entry in an IP forwarding information base upon determining that the packet does not have an entry in the Mobile IP forwarding information base. Other methods and apparatuses are also described.12-15-2011

Chandramouli Balasubramanian, Mountain View, CA US

Patent application numberDescriptionPublished
20110249682SCALABLE DISTRIBUTED USER PLANE PARTITIONED TWO-STAGE FORWARDING INFORMATION BASE LOOKUP FOR SUBSCRIBER INTERNET PROTOCOL HOST ROUTES - Communication sessions are each homed on one of a plurality of line cards in a network element. Packets received by the network element are processed on the home card before being transmitted to a subscriber device, such as a mobile phone or laptop computer. When a packet is received by the network element, it is not necessarily received by the line card that serves as a home card for the respective session. The packet is switched within the network element from the receiving line card, i.e., the trunk card, to the home card. The network element identifies the home card by performing a lookup in a table duplicated on all the line cards using the least significant bits of the IP address in the packet. Using these bits to organize the table limits the size of the table and balances load among the line cards.10-13-2011

Girish Balasubramanian, San Jose, CA US

Patent application numberDescriptionPublished
20090106118PAYMENT USING FUNDS PUSHING - Apparatus, systems, and methods may operate to present, via a networked client coupled to a first financial entity, a graphical user interface including an account associated with a first party, an amount to be paid, and an email address associated with a second party. Further activities may include receiving an indication from the graphical user interface to transfer, via a selected payment processor, the amount to be paid from the account associated with the first party and held by the first financial entity to an account linked to the email address. The amount to be paid may then be pushed from the account held by the first financial entity directly to the selected payment processor. Additional apparatus, systems, and methods are disclosed.04-23-2009
20090106150UNIFIED IDENTITY VERIFICATION - Apparatus, systems, and methods are disclosed that operate to register one time, at a financial entity, information comprising an identity uniquely associated with an individual having a financial account held by the financial entity. Additional actions include receiving a request at the financial entity from a requesting party to authenticate a customer purporting to be the individual, authenticating, by the financial entity, the customer as the individual by matching a token presented by the customer to the identity uniquely associated with the individual, and providing to the requesting party a previously-authorized portion of a profile associated with the individual. Additional apparatus, systems, and methods are disclosed.04-23-2009

Girish Balasubramanian, Fremont, CA US

Patent application numberDescriptionPublished
20110178897SYSTEMS AND METHODS FOR PROCESSING INCOMPLETE TRANSACTIONS OVER A NETWORK - In accordance with one or more embodiments of the present disclosure, a system and method for facilitating electronic commerce over a network includes communicating with a user via a user device and a merchant via a merchant device over the network, storing an incomplete purchase transaction between the user and the merchant, generating a portable checkout link to the incomplete purchase transaction, providing the portable checkout link to the user over the network, allowing the user to select the incomplete purchase transaction for processing, and processing the incomplete purchase transaction upon user selection. The system and method may include notifying the user of the incomplete purchase transaction over the network.07-21-2011

Gopalakrishnan Balasubramanian, Sunnyvale, CA US

Patent application numberDescriptionPublished
20080281862GENERATING FROM APPLICATION MODIFICATIONS COMMANDS TO MODIFY THE OBJECTS IN A REPOSITORY - Provided are a method, system, and article of manufacture for generating from application modifications commands to modify the objects in a repository. An input object including an update to at least one of a plurality of objects in a repository object is received. At least one maintain property associated with at least one of the objects is received. The at least one maintain property indicates whether to maintain the at least one object associated with the maintain property in the repository object that is not indicated in the input object. A determination is made of an object in the repository object that are not indicated in the input object. For the determined object, the maintain property associated with the determined object is used to determine whether to maintain the determined object in the repository object.11-13-2008
20090063580APPARATUS, SYSTEM, AND METHOD FOR HIERARCHICAL ROLLBACK OF BUSINESS OPERATIONS - An apparatus, system, computer program product and method are disclosed for the hierarchical rollback of business objects on a datastore. The hierarchical rollback method utilizes a non-linear process designed to restore data to a previous point in the case of a data modification failure in order to prevent incorrect linking and data corruption. The hierarchical rollback methods are generated by retrieving existing data and creating commands in an order that will prevent orphan data in a datastore.03-05-2009

Patent applications by Gopalakrishnan Balasubramanian, Sunnyvale, CA US

Guru Balasubramanian, San Diego, CA US

Patent application numberDescriptionPublished
20120084653SYSTEM AND METHOD FOR CONTENT RENDERING CONTROL - A system and method for controlling content rendering. The method includes rendering at a display device a content signal received on a predetermined input and sourced from a computer system and receiving at the display device a content rendering control command from a remote control device. The method further includes translating the content rendering control command to a media player control command recognizable by a media playback application of the computer system and sending the media player command to the computer system over a communication network to alter the content signal.04-05-2012

Guru Prashanth Balasubramanian, San Diego, CA US

Patent application numberDescriptionPublished
20100194980Mobile consumer electronic applications on internet video platform - A request to transfer a consumer electronics (CE) application from a consumer electronics device to a TV device is received at the TV device. The CE application is received from the consumer electronics device. Application state information associated with the CE application is received from the consumer electronics device. The CE application and the application state information are stored to a memory. This abstract is not to be considered limiting, since other embodiments may deviate from the features described in this abstract.08-05-2010
20120008047Mobile Consumer Electronic Applications on Internet Video Platform - A request to transfer a consumer electronics (CE) executable application from a consumer electronics device to a TV device is received at the TV device. The CE executable application is received from the consumer electronics device. Application state information associated with the executable CE application is received from the consumer electronics device. The executable CE application and the application state information are stored to a memory. This abstract is not to be considered limiting, since other embodiments may deviate from the features described in this abstract.01-12-2012

Guru Prashanth Balasubramanian, Milpitas, CA US

Patent application numberDescriptionPublished
20080267498UNSUPERVISED COLOR IMAGE SEGMENTATION BY DYNAMIC COLOR GRADIENT THRESHOLDING - A method for segmenting an image includes computing a color gradient map based on an inputted image and selecting at least one initial seed of at least one pixel based on the color gradient map. The method further includes growing a region of pixels adjacent to the initial seed and merging adjacent regions of pixels using a measure of similarity.10-30-2008

Hari Balasubramanian, Oak Park, CA US

Patent application numberDescriptionPublished
20110200330Increasing the Number of Domain identifiers for Use by a Switch in an Established Fibre Channel Switched Fabric - The number of domain identifiers is incrementally increased for use by a switch in an established fibre channel switched fabric. In other words, the number of domains assigned to a switch by the Principal Switch of the fibre channel switched fabric is increased without triggering the reconfiguration of the established fibre channel switched fabric. In one implementation, incrementally adding one or more additional domain identifiers includes requesting said one or more additional domain identifiers from a Principal Switch of the fibre channel switched fabric using a different World Wide Name (WWN) than used to acquire the original one or more domain identifiers used by the switch.08-18-2011

Hariharan Balasubramanian, Fremont, CA US

Patent application numberDescriptionPublished
20100310253LESS LOSS IN-ORDER DELIVERY PROTOCOL FOR FIBRE CONNECTION ARCHITECTURE - Methods and apparatus for providing in-order delivery in Fibre Channel (FC) fabric are disclosed. A topological change between a first switch and a second switch is evaluated to determine whether the topological change may result in out-of-order delivery. If it is determined that the topological change may result in out-of-order delivery, a flush frame is sent to the second switch and stop-on-mark is performed on all interfaces of affected links. Upon receiving the flush frame, the second switch drains all virtual output queues (VOQs) and sends an acknowledgement frame to the first switch. The first switch resumes in-order-delivery in an affected link after receiving the acknowledgement frame or expiration of a lifetime time of a frame.12-09-2010
20110038257METHOD AND APPARATUS FOR SEQUENCING OPERATIONS FOR AN INCOMING INTERFACE CHECK IN DATA CENTER ETHERNET - In one embodiment, a method includes obtaining an indication that a state associated with a node is to be changed and preventing data from being received on a first link. The method also includes updating at least one selected from a group including an incoming interface check (IIC) table and an outgoing interface (OIF) table to reflect the state. The state indicates that a second link is to be activated. Finally, the method includes allowing the data to be received on the second link after updating either or both the IIC table and the OIF table and after the timer duration for the NULL value for IIC has expired.02-17-2011

Hariharan Balasubramanian, Oak Park, CA US

Patent application numberDescriptionPublished
20110219183SUB-AREA FCID ALLOCATION SCHEME - Certain embodiments of the present disclosure generally relate to allocating a sub-area of Fibre Channel addresses (FCIDs) to a device. A range of addresses may be assigned to the device using a mask address, where the most significant bits represent a mask and the least significant bits represent a sub-range of FCIDs available to be assigned to the device. Therefore, routing information may be stored efficiently in a Ternary Content Addressable Memory (TCAM) by storing a single entry in the TCAM for each sub-area of FCIDs allocated to a device, instead of storing an entry for each FCID. The single entry may indicate the mask address and the width of the mask.09-08-2011
20110228670N_Port ID Virtualization node redundancy - In one embodiment, a method includes establishing a link between two N_Port Identifier Virtualization (NPIV) switches, the link having a high cost assigned thereto. The NPIV switches are in communication with a plurality of hosts through an N_Port Virtualization (NPV) device. The method further includes receiving at a first of the NPIV switches, an indication of a failure at a second of the NPIV switches, receiving data at the first NPIV switch, the data destined for one of the hosts associated with a domain of the second NPIV switch, and forwarding the data to the NPV device for delivery to the host, wherein a Fibre Channel Identifier (FCID) of the host is the same before and after the failure at the second NPIV switch. An apparatus is also disclosed.09-22-2011
20110273990Per-graph link cost assignment in layer 2 multipath networks - In one embodiment, a method includes assigning at a switch in a layer 2 multipath network, costs to a link in the network, each of the link costs associated with a different graph for forwarding traffic in the network, transmitting the link costs to other switches in the layer 11-10-2011
20120027017MULTI-DESTINATION FORWARDING IN NETWORK CLOUDS WHICH INCLUDE EMULATED SWITCHES - Techniques are described which facilitate multi-destination forwarding in a Layer 2 Multipath (L2MP) network which includes an emulated switch. The emulated switch may correspond to two or more underlying peer link switches in the L2MP network, in which each of the peer link switches is linked to a Classical Ethernet (CE) switch over a virtual port channel (vPC). Traffic received by one of the peer link switches over the vPC is automatically forwarded to the other peer link switch (or switches). Multi-destination frames originating from the L2MP network addressed to hosts within the CE network are sent over only one of the peer link switches.02-02-2012

Lalita A. Balasubramanian, Fremont, CA US

Patent application numberDescriptionPublished
20090080759SYSTEMS AND METHODS FOR CREATING PERSISTENT DATA FOR A WAFER AND FOR USING PERSISTENT DATA FOR INSPECTION-RELATED FUNCTIONS - Various systems and methods for creating persistent data for a wafer and using persistent data for inspection-related functions are provided. One system includes a set of processor nodes coupled to a detector of an inspection system. Each of the processor nodes is configured to receive a portion of image data generated by the detector during scanning of a wafer. The system also includes an array of storage media separately coupled to each of the processor nodes. The processor nodes are configured to send all of the image data or a selected portion of the image data received by the processor nodes to the arrays of storage media such that all of the image data or the selected portion of the image data generated by the detector during the scanning of the wafer is stored in the arrays of the storage media.03-26-2009

Poonguzhali Balasubramanian, Fremont, CA US

Patent application numberDescriptionPublished
20120042210ON-DEMAND SERVICES ENVIRONMENT TESTING FRAMEWORK - In one embodiment, a method of providing a test framework in an on-demand services environment can include: accessing a plurality of tests via plug-ins to a core platform of the test framework; receiving, by a user interface, a selection of tests for execution from the plurality of tests, where the selected tests are configured to test a plurality of layers of a product; executing, by an execution engine coupled to the core platform, the selected tests; storing test results for the executed selected tests on a configurable repository; and reporting the stored test results in a summarized form on the user interface.02-16-2012

Rabindranath Balasubramanian, Dublin, CA US

Patent application numberDescriptionPublished
20080265935INTEGRATED MULTI-FUNCTION ANALOG CIRCUIT INCLUDING VOLTAGE, CURRENT, AND TEMPERATURE MONITOR AND GATE-DRIVER CIRCUIT BLOCKS - An integrated multi-function analog circuit includes at least one MOSFET gate-drive circuit coupled to a first I/O pad. At least one voltage-sensing circuit is coupled to a second I/O pad. At least one current-sensing circuit is coupled to the second I/O pad and a third I/O pad. At least one temperature-sensing circuit is coupled to a fourth I/O pad.10-30-2008
20080272803SYSTEM-ON-A-CHIP INTEGRATED CIRCUIT INCLUDING DUAL-FUNCTION ANALOG AND DIGITAL INPUTS - An integrated circuit includes a plurality of inputs, a plurality of output pads, a programmable logic block, an analog circuit block, an analog-to-digital converter programmably coupleable to individual analog circuits in the analog circuit block, and an interconnect architecture programmably coupling selected ones of the plurality of inputs, the plurality of outputs, the programmable logic block, the analog circuit block, and the analog-to-digital converter. At least one of the inputs may be programmably configured as one of a digital input programmably coupleable to elements in the programmable logic block or as an analog input to an analog circuit in the analog circuit block.11-06-2008
20080303547PROGRAMMABLE SYSTEM ON A CHIP FOR TEMPERATURE MONITORING AND CONTROL - A programmable system-on-a-chip integrated circuit device includes a programmable logic block, at least one user non-volatile memory block, and temperature sensing and control analog and digital circuits on a single semiconductor integrated circuit chip or a flip chip, face-to-face, or other multiple die configuration. The programmable system-on-a-chip integrated circuit with temperature measuring and control circuitry performs temperature measurement and control functions and can be used to create an on-chip temperature log.12-11-2008
20090128186PROGRAMMABLE SYSTEM ON A CHIP FOR POWER-SUPPLY VOLTAGE AND CURRENT MONITORING AND CONTROL - A programmable system-on-a-chip integrated circuit device includes a programmable logic block, at least one user non-volatile memory block, and voltage-measuring and control analog and digital circuits on a single semiconductor integrated circuit chip or a flip chip, face-to-face, or other multiple die configuration. The programmable system-on-a-chip integrated circuit with voltage-measuring, current-measuring and control circuitry performs voltage measurement and control functions and can be used to control and monitor external power supplies connected to external loads.05-21-2009
20090292937PROGRAMMABLE SYSTEM ON A CHIP - A programmable system-on-a-chip integrated circuit device comprises a programmable logic block, a non-volatile memory block, an analog sub-system, an analog input/output circuit block, and a digital input/output circuit block. A programmable interconnect architecture includes programmable elements and interconnect conductors. Ones of the programmable elements are coupled to the programmable logic block, the non-volatile memory block, the analog sub-system, the analog input/output circuit block, the digital input/output circuit block, and to the interconnect conductors, such that inputs and outputs of the programmable logic block, the non-volatile memory block, the analog sub-system, the analog input/output circuit block, and the digital input/output circuit block can be programmably coupled to one another.11-26-2009
20100001760PROGRAMMABLE SYSTEM ON A CHIP FOR POWER-SUPPLY VOLTAGE AND CURRENT MONITORING AND CONTROL - A programmable system-on-a-chip integrated circuit device includes a programmable logic block, at least one user non-volatile memory block, and voltage-measuring and control analog and digital circuits on a single semiconductor integrated circuit chip or a flip chip, face-to-face, or other multiple die configuration. The programmable system-on-a-chip integrated circuit with voltage-measuring, current-measuring and control circuitry performs voltage measurement and control functions and can be used to control and monitor external power supplies connected to external loads.01-07-2010

Patent applications by Rabindranath Balasubramanian, Dublin, CA US

Rajni Balasubramanian, Campbell, CA US

Patent application numberDescriptionPublished
20090150460MIGRATION IN A DISTRIBUTED FILE SYSTEM - A method includes creating a temporary target s-stub file. The temporary target s-stub file points to a source share. The method further includes creating a plurality of stub files in a target top-level directory on a target share. Each stub file out of the plurality of stub files corresponds to source data. The source data includes files and subdirectories in a source top-level directory on a source share. The plurality of stub files include source information, the source information is associated with the temporary target s-stub file, and a source s-stub file points to the source share. The method further includes remapping the source s-stub to point to the target share.06-11-2009
20090150462DATA MIGRATION OPERATIONS IN A DISTRIBUTED FILE SYSTEM - In at least some disclosed embodiments, a method includes a) creating a first stub file on a target file server. The first stub file is created in a target directory, and the first stub file points to source data in a source directory on a source file server. The method further includes b) creating a t-stub file at the location of the source directory. The t-stub file points to the target directory, and the source directory allows access to the source data when accessed due to the first stub file. The method further includes c) copying the source data into a hidden directory on the target file server, thus creating target data, d) overwriting the first stub file by renaming the target data, and e) deleting the source data from the source file server.06-11-2009

Ramakrishnan Balasubramanian, Santa Clara, CA US

Patent application numberDescriptionPublished
20110246653EFFICIENT PROVISIONING OF RESOURCES IN PUBLIC INFRASTRUCTURE FOR ELECTRONIC DESIGN AUTOMATION (EDA) TASKS - Provisioning resources in public cloud infrastructure to perform at least part of electronic design automation (EDA) tasks on the public cloud infrastructure. Performance metrics of servers in the public cloud infrastructure and performance history of a user's past EDA tasks are maintained to estimate operation parameters such as runtime of a new EDA task. Based on the estimation, a user can provision appropriate types and amounts of resources in the public cloud infrastructure in a cost-efficient manner. Also, a plurality of EDA tasks are assigned to computing resources in a manner that minimizes the overall cost for performing the EDA tasks.10-06-2011
20110301907Accelerating Automatic Test Pattern Generation in a Multi-Core Computing Environment via Speculatively Scheduled Sequential Multi-Level Parameter Value Optimization - Systems and methods provide acceleration of automatic test pattern generation in a multi-core computing environment via multi-level parameter value optimization for a parameter set with speculative scheduling. The methods described herein use multi-core based parallel runs to parallelize sequential execution, speculative software execution to explore possible parameter sets, and terminate/prune runs when the optimum parameter value is found at a previous level. The present invention evaluates the design prior to the implementation of the compression IP so that it can define the configuration of DFT and ATPG to maximize the results of compression as measured by test data volume and test application time.12-08-2011
20120084847Secure Provisioning of Resources in Cloud Infrastructure - Provisioning resources in public cloud infrastructure to perform at least part of electronic design automation (EDA) tasks on the public cloud infrastructure. The provisioning of resources is handled by a cloud provisioning system that is generally operated and maintained by an EDA tool developer using a provisioning credential. After the resources are provisioned, the cloud provisioning system places user key on the provisioned resources. Once the user key is placed on the provisioned resources, the cloud provisioning system has only limited access or no access to the provisioned resources. Instead, a user client device takes over the control of the provisioned resources by using a user's access credential. The provisioning credential is retained by the EDA tool developer and is not released to the user. Similarly, the access credential is retained by the user and not released to the EDA tool developer. In this way, the EDA tool developer can retain control of the resources deployed for the EDA tasks while ensuring that the user's information associated with the EDA tasks is secure.04-05-2012

Ranji Balasubramanian, Campbell, CA US

Patent application numberDescriptionPublished
20090150449OPEN FILE MIGRATION OPERATIONS IN A DISTRIBUTED FILE SYSTEM - In at least some disclosed embodiments, a method includes a) creating a first stub file on a target file server, b) creating a t-stub file at the location of the source directory, c) disabling performance of operations on the source data while allowing completion of operations in progress, d) copying the source data into a hidden directory on the target file server, thus creating target data, e) overwriting the first stub file by renaming the target data, f) enabling performance of operations on the target data, g) performing queued operations on the target data, and h) deleting the source data from the source file server.06-11-2009

Sanjeevi Balasubramanian, Santa Clara, CA US

Patent application numberDescriptionPublished
20110242986WIRELESS CONNECTION CONTROL - Controlling a wireless connection of a mobile wireless communication device to a wireless communication network. When the mobile wireless communication device is connected to a base transceiver station through a radio frequency link, the mobile wireless communication device detects a signal quality of the radio frequency link. If the detected signal quality is at or below a first threshold and decreasing over a first detection time interval, then the mobile wireless communication device estimates a maximum response time interval until the detected signal quality of the radio frequency link is below a second threshold. The mobile wireless communication device delays transmitting only those control messages that cause the wireless communication network to respond to subsequent control messages beyond the estimated maximum response time interval.10-06-2011

Shankar Balasubramanian, Sunnyvale, CA US

Patent application numberDescriptionPublished
20100088481WRITE CAPTURE FOR FIBRE CHANNEL FABRIC SNAPSHOT SERVICE - The snapshot capability moving into the SAN fabric and being provided as a snapshot service. A well-known address is utilized to receive snapshot commands. Each switch in the fabric connected to a host contains a front end or service interface to receive the snapshot command. Each switch of the fabric connected to a storage device used in the snapshot process contains a write interceptor module which cooperates with hardware in the switch to capture any write operations which would occur to the snapshot data area. The write interceptor then holds these particular write operations until the original blocks are transferred to a snapshot or separate area so that the original read data is maintained. Should a read operation occur to the snapshot device and the original data from requested location has been relocated, a snapshot server captures these commands and redirects the read operation to occur from the snapshot area. If, however, the read operation is directed to the original drive, the read is provided from the original data areas, even if the data had been replaced. The snapshot server determines the existence of particular snapshot devices, allocates their storage locations, provides this information to both the service interfaces and the write interceptors and handles read and write operations to the snapshot device.04-08-2010

Patent applications by Shankar Balasubramanian, Sunnyvale, CA US

Shankar Balasubramanian, San Diego, CA US

Patent application numberDescriptionPublished
20100028960Preparation of Precisely Controlled Thin Film Nanocomposite of Carbon Nanotubes and Biomaterials - Disclosed are nanocomposite materials comprising multiple layers of biomolecules bound to aligned carbon nanotubes. The thickness of each of the layers may be precisely controlled using a layer-by-layer assembly technique.02-04-2010

Shyam Balasubramanian, Santa Clara, CA US

Patent application numberDescriptionPublished
20080266995METHOD OF SELECTIVELY POWERING MEMORY DEVICE - An approach to selectively powering a memory device is provided to improve the writeability of static random access memory (SRAM) cells without adversely compromising their stability. For example, various methods are provided to permit the voltage or current of a power supply line connected with one side of an SRAM cell to drop during write operations. This drop weakens one side of the SRAM cell and reduces the drive-fight between transistors of the SRAM cell and external write circuitry. As a result, the minimum voltage for writing new logic states into the SRAM cell is reduced to permit overall lower operating voltages for the SRAM cell and related circuitry. By continuing to maintain a second side of the SRAM cell at the reference voltage or current, the SRAM cell can successfully switch to a newly written logic state.10-30-2008
20080273412MEMORY DEVICE WITH SPLIT POWER SWITCH - A memory device having a split power switch is provided to improve the writeability of static random access memory (SRAM) cells without adversely compromising their stability. For example, various split power switch circuits are used to permit the voltage or current of a power supply line connected with one side of an SRAM cell to drop during write operations. This drop weakens one side of the SRAM cell and reduces the drive-fight between transistors of the SRAM cell and external write circuitry. As a result, the minimum voltage for writing new logic states into the SRAM cell is reduced to permit overall lower operating voltages for the SRAM cell and related circuitry. By continuing to maintain a second side of the SRAM cell at the reference voltage or current, the SRAM cell can successfully switch to a newly written logic state.11-06-2008

Srinivasan Balasubramanian, San Jose, CA US

Patent application numberDescriptionPublished
20090089326METHOD AND APPARATUS FOR PROVIDING MULTIMEDIA CONTENT OPTIMIZATION - Methods, system and computer readable medium for detecting duplicate content in a pair of media files prior to publication on a webpage include generating fingerprints for the contents of each of the pair of media files. The fingerprints of one of the pair of media file are then compared with the fingerprints of another of the pair of media files to compute a similarity score. The similarity score is compared against an established threshold. If the similarity score exceeds the established threshold, it is determined that the two media files are substantial duplicate of one another.04-02-2009
20090119291MICROHUBS AND ITS APPLICATIONS - A system and method of crawling at least one website comprising at least one URL includes maintaining a lookup structure comprising all of the URLs known to be on a website; calculating a hub score for each webpage of the website to be recrawled, wherein the hub score measures how likely the to be recrawled webpage includes links to fresh content published on the website; sorting all the to be recrawled pages by their hub scores; and crawling the to be recrawled pages in order from highest hub scores to lowest hub scores. The calculating comprises computing a first value equaling a percentage of a number of new relative URLs on the to be recrawled page; computing a second value equaling a percentage of a previous hub score of the to be recrawled page; and computing the hub score as a sum of the first and the second values.05-07-2009
20090150456METHODS, SYSTEMS, AND COMPUTER PROGRAM PRODUCTS FOR DISASTER RECOVERY PLANNING - Formulating an integrated disaster recovery (DR) plan based upon a plurality of DR requirements for an application by receiving a first set of inputs identifying one or more entity types for which the plan is to be formulated, such as an enterprise, one or more sites of the enterprise, the application, or a particular data type for the application. At least one data container representing a subset of data for an application is identified. A second set of inputs is received identifying at least one disaster type for which the plan is to be formulated. A third set of inputs is received identifying a DR requirement for the application as a category of DR Quality of Service (QoS) class to be applied to the disaster type. A composition model is generated specifying one or more respective DR QoS parameters as a function of a corresponding set of one or more QoS parameters representative of a replication technology solution. The replication technology solution encompasses a plurality of storage stack levels. A solution template library is generated for mapping the application to each of a plurality of candidate replication technology solutions. The template library is used to select a DR plan in the form of a replication technology solution for the application.06-11-2009
20090150712METHODS, SYSTEMS, AND COMPUTER PROGRAM PRODUCTS FOR DISASTER RECOVERY PLANNING - Formulating an integrated disaster recovery (DR) plan based upon a plurality of DR requirements for an application by receiving a first set of inputs identifying one or more entity types for which the plan is to be formulated, such as an enterprise, one or more sites of the enterprise, the application, or a particular data type for the application. At least one data container representing a subset of data for an application is identified. A second set of inputs is received identifying at least one disaster type for which the plan is to be formulated. A third set of inputs is received identifying a DR requirement for the application as a category of DR Quality of Service (QoS) class to be applied to the disaster type. A composition model is generated specifying one or more respective DR QoS parameters as a function of a corresponding set of one or more QoS parameters representative of a replication technology solution. The replication technology solution encompasses a plurality of storage stack levels. A solution template library is generated for mapping the application to each of a plurality of candidate replication technology solutions. The template library is used to select a DR plan in the form of a replication technology solution for the application.06-11-2009

Patent applications by Srinivasan Balasubramanian, San Jose, CA US

Srinivasan Balasubramanian, San Deigo, CA US

Patent application numberDescriptionPublished
20100115072NON-NETWORK INITIATED QUALITY OF SERVICE (QoS) - Systems and methods for automatically providing different levels of Quality of Service (QoS) to applications in a communication network having various content providers. Typically, content is provided to applications that are unable to specify applicable QoS. A service node is provided to coordinate transfer of data to the applications. The service node further cooperates with an access terminal running the applications to specify the QoS.05-06-2010

Sriram Balasubramanian, San Carlos, CA US

Patent application numberDescriptionPublished
20090123374METHODS FOR DETERMINING CANCER RESISTANCE TO HISTONE DEACETYLASE INHIBITORS - Described herein are methods and compositions for determining whether a particular cancer is resistant to or susceptible to a histone deacetylase inhibitor or to histone deacetylase inhibitors. The methods include analysis of the expression levels of at least four biomarker genes associated with response to a histone deacetylase inhibitor. Also described herein are methods and compositions for increasing the likelihood of a therapeutically effective treatment in a patient, comprising an analysis of the expression levels of at least four biomarker genes associated with response to a histone deacetylase inhibitor. Also described herein are isolated populations of nucleic acids derived from a cancer sensitive to or resistant to a histone deacetylase inhibitor. Further described are kits and indications that are optionally used in conjunction with the aforementioned methods and compositions.05-14-2009
20100285516CALCIUM FLUX AS A PHARMACOEFFICACY BIOMARKER FOR INHIBITORS OF HISTONE DEACETYLASE - Described herein are methods for using calcium flux as a biomarker to select and predict patients likely to respond to an apoptotic agent as therapy. Further described herein is a method of using calcium flux as a clinical biomarker to determine whether a tumor is sensitive to an HDAC inhibitor.11-11-2010
20110053164METHODS FOR DETERMINING CANCER RESISTANCE TO HISTONE DEACETYLASE INHIBITORS - Described herein are methods and compositions for determining whether a particular cancer is resistant to or susceptible to a histone deacetylase inhibitor or to histone deacetylase inhibitors. The methods include analysis of the expression levels of at least four biomarker genes associated with response to a histone deacetylase inhibitor. Also described herein are methods and compositions for increasing the likelihood of a therapeutically effective treatment in a patient, comprising an analysis of the expression levels of at least four biomarker genes associated with response to a histone deacetylase inhibitor. Also described herein are isolated populations of nucleic acids derived from a cancer sensitive to or resistant to a histone deacetylase inhibitor. Further described are kits and indications that are optionally used in conjunction with the aforementioned methods and compositions.03-03-2011
20110081409SELECTIVE INHIBITORS OF HISTONE DEACETYLASE - Described herein are compounds and pharmaceutical compositions containing such compounds, which inhibit the activity of histone deacetylase 8 (HDAC8). Also described herein are methods of using such HDAC8 inhibitors, alone and in combination with other compounds, for treating diseases or conditions that would benefit from inhibition of HDAC8 activity.04-07-2011
20110150825USES OF SELECTIVE INHIBITORS OF HDAC8 FOR TREATMENT OF INFLAMMATORY CONDITIONS - Described herein are methods for treating a subject suffering from an inflammatory, autoimmune, or heteroimmune condition by administering to the subject a pharmaceutical composition containing a therapeutically effective amount of a compound that is a selective inhibitor of histone deacetylase 8. Also described herein are methods for decreasing secretion of pro-inflammatory cytokines by administering an HDAC8-selective inhibitor compound. Further described herein are methods for predicting responsiveness to treatments for inflammatory conditions. Methods for predicting efficacy of treatments for inflammatory conditions are also described.06-23-2011
20110311624FORMULATIONS OF HISTONE DEACETYLASE INHIBITOR AND USES THEREOF - Dosing regimens, methods of treatment, controlled release formulations, and combination therapies that include an HDAC inhibitor, or a pharmaceutically acceptable salt thereof, are described.12-22-2011

Patent applications by Sriram Balasubramanian, San Carlos, CA US

Sriram Balasubramanian, Fremont, CA US

Patent application numberDescriptionPublished
20090050984MOS STRUCTURES THAT EXHIBIT LOWER CONTACT RESISTANCE AND METHODS FOR FABRICATING THE SAME - MOS structures that exhibit lower contact resistance and methods for fabricating such MOS structures are provided. In one method, a semiconductor substrate is provided and a gate stack is fabricated on the semiconductor substrate. An impurity-doped region within the semiconductor substrate aligned with the gate stack is formed. Adjacent contact fins extending from the impurity-doped region are fabricated and a metal silicide layer is formed on the contact fins. A contact to at least a portion of the metal silicide layer on at least one of the contact fins is fabricated.02-26-2009
20090259453Method of modeling SRAM cell - A method of modeling an SRAM cell is provided. Initially, transistor models are provided based on transistor devices, and an SRAM cell model is provided including the transistor models. The present methodology streamlines the modeling process by modeling in order the pull up, pass gate and pull down transistors so as to minimize the number of transistor modeling iterations needed, and by focusing on the specific areas of transistor operation to achieve the desired level of operational accuracy. Variations to the model are provided, mimicking variations in data from actual devices, and yield based on failure estimation is measured using the model and its variations.10-15-2009
20110233627MOS STRUCTURES THAT EXHIBIT LOWER CONTACT RESISTANCE AND METHODS FOR FABRICATING THE SAME - MOS structures that exhibit lower contact resistance and methods for fabricating such MOS structures are provided. In one method, a semiconductor substrate is provided and a gate stack is fabricated on the semiconductor substrate. With the gate stack serving as a mask, impurity dopants are implanted into a semiconductor material having a first surface and disposed proximate to the gate stack. A trench is etched into the semiconductor material such that the semiconductor material has a trench surface within the trench. Further, a metal silicide layer is formed on the first surface of the semiconductor material and on the trench surface. Also, a contact to at least a portion of the metal silicide layer on the first surface and at least a portion of the metal silicide layer on the trench surface is fabricated.09-29-2011