Patents by Inventor Anand Parthasarathi

Anand Parthasarathi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 8693700
    Abstract: In an aspect, the invention features an active noise reduction device including an electronic signal processing circuit. The electronic signal processing circuit includes a first input for accepting a first signal, a second input for accepting a second signal, an output for providing a third signal, a feed-forward path from the first input to the output, and a feed-forward controller for determining the control parameter by calculating a control signal using the first signal and the second signal and then using the control signal to determine the control parameter. The feed-forward path includes a fixed compensation linear filter and a variable compensation filter having an input for receiving a control parameter that applies a selected linear filter from a family of linear filters that vary in both gain and spectral shape and are selectable by the control parameter.
    Type: Grant
    Filed: March 31, 2011
    Date of Patent: April 8, 2014
    Assignee: Bose Corporation
    Inventors: Pericles Bakalos, Anand Parthasarathi
  • Patent number: 8682001
    Abstract: An active noise reduction earphone. The earphone includes structure for positioning and retaining the earphone in the ear of a user without a headband, active noise reduction circuitry including an acoustic driver with a nominal diameter greater than 10 mm oriented so that a line parallel to, or coincident with, an axis of the acoustic driver and that intersects a centerline of the nozzle intersects the centerline of the nozzle at angle ?>±30 degrees. A microphone is positioned adjacent an edge of the acoustic driver. The earphone is configured so that a portion of the acoustic driver is within the concha of a user and another portion of the acoustic driver is outside the concha of the user when the earphone is in position. An opening coupling the nozzle to the environment includes impedance providing structure in the opening.
    Type: Grant
    Filed: April 17, 2013
    Date of Patent: March 25, 2014
    Assignee: Bose Corporation
    Inventors: Kevin P. Annunziato, Jason Harlow, Michael Monahan, Anand Parthasarathi, Ryan C. Silvestri, Eric M. Wallace
  • Publication number: 20130315412
    Abstract: An active noise reduction earphone. The earphone includes structure for positioning and retaining the earphone in the ear of a user without a headband, active noise reduction circuitry including an acoustic driver with a nominal diameter greater than 10 mm oriented so that a line parallel to, or coincident with, an axis of the acoustic driver and that intersects a centerline of the nozzle intersects the centerline of the nozzle at angle ?>±30 degrees. A microphone is positioned adjacent an edge of the acoustic driver. The earphone is configured so that a portion of the acoustic driver is within the concha of a user and another portion of the acoustic driver is outside the concha of the user when the earphone is in position. An opening coupling the nozzle to the environment includes impedance providing structure in the opening.
    Type: Application
    Filed: April 17, 2013
    Publication date: November 28, 2013
    Inventors: Kevin P. Annunziato, Jason Harlow, Michael Monahan, Anand Parthasarathi, Ryan C. Silvestri, Eric M. Wallace
  • Publication number: 20130315410
    Abstract: An active noise reduction earphone. The earphone includes structure for positioning and retaining the earphone in the ear of a user without a headband, active noise reduction circuitry including an acoustic driver with a nominal diameter greater than 10 mm oriented so that a line parallel to, or coincident with, an axis of the acoustic driver and that intersects a centerline of the nozzle intersects the centerline of the nozzle at angle ?>±30 degrees. A microphone is positioned adjacent an edge of the acoustic driver. The earphone is configured so that a portion of the acoustic driver is within the concha of a user and another portion of the acoustic driver is outside the concha of the user when the earphone is in position. An opening coupling the nozzle to the environment includes impedance providing structure in the opening.
    Type: Application
    Filed: May 25, 2012
    Publication date: November 28, 2013
    Inventors: Kevin P. Annunziato, Jason Harlow, Michael Monahan, Anand Parthasarathi, Ryan C. Silvestri, Eric M. Wallace
  • Publication number: 20130315411
    Abstract: An active noise reduction earphone. The earphone includes structure for positioning and retaining the earphone in the ear of a user without a headband, active noise reduction circuitry including an acoustic driver with a nominal diameter greater than 10 mm oriented so that a line parallel to, or coincident with, an axis of the acoustic driver and that intersects a centerline of the nozzle intersects the centerline of the nozzle at angle ?>±30 degrees. A microphone is positioned adjacent an edge of the acoustic driver. The earphone is configured so that a portion of the acoustic driver is within the concha of a user and another portion of the acoustic driver is outside the concha of the user when the earphone is in position. An opening coupling the nozzle to the environment includes impedance providing structure in the opening.
    Type: Application
    Filed: May 25, 2012
    Publication date: November 28, 2013
    Inventors: Kevin P. Annunziato, Jason Harlow, Michael Monahan, Anand Parthasarathi, Ryan C. Silvestri, Eric M. Wallace
  • Publication number: 20130182708
    Abstract: Techniques and a network edge device are provided herein to extend local area networks (LANs) and storage area networks (SANs) beyond a data center while converging the associated local area network and storage area network host layers. A packet is received at a device in a network. It is determined if the packet is routed to a local or remote storage area network or local area network. In response to determining that the packet routed to a remote storage area network, storage area network extension services are performed with respect to the packet in order to extend the storage area network on behalf of a remote location. In response to determining that the packet is routed to a local local area network traffic, local area network extension services are performed with respect to the packet in order to extend the local area network on behalf of the remote location.
    Type: Application
    Filed: January 17, 2012
    Publication date: July 18, 2013
    Applicant: Cisco Technology, Inc.
    Inventors: Samar Sharma, Chandramouli Radhakrishnan, Sameer Merchant, Anand Parthasarathy, Murali Basavaiah
  • Patent number: 8464074
    Abstract: Methods and apparatus for performing Storage Media Encryption (SME) are disclosed. In one embodiment, an apparatus includes a memory and a plurality of processors. The apparatus receives a write command from a network device. The apparatus sends a transfer ready to the network device in response to the write command. The apparatus receives data from the network device. The apparatus composes a status and sends the status the network device. The status is sent to the network device after the data has been received from the network device and prior to both compressing and encrypting the data. The apparatus compresses the data to generate compressed data. One of the plurality of processors encrypts the compressed data to generate modified data. The apparatus then sends the modified data to a target indicated by the write command.
    Type: Grant
    Filed: May 1, 2009
    Date of Patent: June 11, 2013
    Assignee: Cisco Technology, Inc.
    Inventors: Anand Parthasarathy, Chandra Sekhar Kondamuri, Ramkumar Chinchani, Gian Carlo Boffa, Maurilio Cometto
  • Publication number: 20130083938
    Abstract: In one aspect, in general, an active noise reduction system detects actual or potential instability by detecting characteristics of the system related to potential or actual unstable behavior (e.g., oscillation) and adapts system characteristics to mitigate such instability. In some examples, the system adapts to variation in characteristics of an acoustic component of a feedback path that has or may induce unstable behavior to improve a user's acoustic experience.
    Type: Application
    Filed: October 3, 2011
    Publication date: April 4, 2013
    Applicant: Bose Corporation
    Inventors: Pericles Bakalos, Anand Parthasarathi
  • Publication number: 20120250873
    Abstract: In an aspect, the invention features an active noise reduction device including an electronic signal processing circuit. The electronic signal processing circuit includes a first input for accepting a first signal, a second input for accepting a second signal, an output for providing a third signal, a feed-forward path from the first input to the output, and a feed-forward controller for determining the control parameter by calculating a control signal using the first signal and the second signal and then using the control signal to determine the control parameter. The feed-forward path includes a fixed compensation linear filter and a variable compensation filter having an input for receiving a control parameter that applies a selected linear filter from a family of linear filters that vary in both gain and spectral shape and are selectable by the control parameter.
    Type: Application
    Filed: March 31, 2011
    Publication date: October 4, 2012
    Applicant: Bose Corporation
    Inventors: Pericles Bakalos, Anand Parthasarathi
  • Patent number: 8166196
    Abstract: Techniques are disclosed for redirecting fiber channel data transmitted between nodes in a fiber channel fabric. The redirection allows traffic sent from a host to a target in a storage area network (SAN) to flow through a cascade of applications provided by certain nodes of the fabric (or in some cases, by external appliances). That is, techniques are disclosed for application chaining in the SAN. Doing so allows the SAN to be used as a true network platform for providing a variety of intelligent services within the network (e.g., data migration, encryption, etc).
    Type: Grant
    Filed: March 27, 2009
    Date of Patent: April 24, 2012
    Assignee: Cisco Technology Inc.
    Inventors: Kalyan Chakravarthy Nidumolu, Parthiban Munusamy, Anand Parthasarathy, Prakashkumar Manickam
  • Patent number: 8078903
    Abstract: Methods and apparatus for encrypting data are disclosed. In accordance with one embodiment, data path information identifying a data path is provided to one or more of a plurality of nodes in a cluster of nodes in a network, each of the nodes in the cluster being configured for encryption of data. One of the nodes is selected to be responsible for encryption of data in the data path. The selected one of the nodes is notified of its responsibility for encryption of data associated with the data path, wherein traffic associated with the data path is redirected to the selected one of the nodes.
    Type: Grant
    Filed: November 25, 2008
    Date of Patent: December 13, 2011
    Assignee: Cisco Technology, Inc.
    Inventors: Anand Parthasarathy, Manali Chandrakant Holankar, Kalyan Chakravarthy Nidumolu, Chandra Sekhar Kondamuri
  • Patent number: 8051203
    Abstract: Techniques are disclosed for abstracting write acceleration techniques and tape acceleration techniques away from transport providers (e.g., away from an FC or FCIP interlink between two storage area networks) and allowing acceleration to be provided as a service by nodes within the storage area network (SAN). Doing so allows the acceleration service to be provided anywhere in the SAN. Further, doing so allows users to scale the acceleration service as needed, without having to create awkward topologies of multiple VSANS. Further still, as the acceleration service is offered independently from the transport, compression, encryption, and other services may be offered as part of the transport between the FC/FCIP connection along with the acceleration service.
    Type: Grant
    Filed: May 29, 2009
    Date of Patent: November 1, 2011
    Assignee: Cisco Technology, Inc.
    Inventors: Murali Basavaiah, Kiron Haltore, Anand Parthasarathy
  • Patent number: 7949792
    Abstract: The present invention defines a new protocol for communicating with an offload engine that provides Transmission Control Protocol (“TCP”) termination over a Fibre Channel (“FC”) fabric. The offload engine terminates all protocols up to and including TCP and performs the processing associated with those layers. The offload protocol guarantees delivery and is encapsulated within FCP-formatted frames. Thus, the TCP streams are reliably passed to the host. Additionally, using this scheme, the offload engine can provide parsing of the TCP stream to further assist the host. The present invention also provides network devices (and components thereof) that are configured to perform the foregoing methods. The invention further defines how network attached storage (“NAS”) protocol data units (“PDUs”) are parsed and delivered.
    Type: Grant
    Filed: April 29, 2004
    Date of Patent: May 24, 2011
    Assignee: Cisco Technology, Inc.
    Inventors: Timothy Kujk, David Thompson, Stephen DeGroote, Murali Basavaiah, Anand Parthasarathy
  • Publication number: 20100250775
    Abstract: Techniques are disclosed for redirecting fibre channel data transmitted between nodes in a fibre channel fabric. The redirection allows traffic sent from a host to a target in a storage area network (SAN) to flow through a cascade of applications provided by certain nodes of the fabric (or in some cases, by external appliances). That is, techniques are disclosed for application chaining in the SAN. Doing so allows the SAN to be used as a true network platform for providing a variety of intelligent services within the network (e.g., data migration, encryption, etc).
    Type: Application
    Filed: March 27, 2009
    Publication date: September 30, 2010
    Inventors: Kalyan Chakravarthy Nidumolu, Parthiban Munusamy, Anand Parthasarathy, Prakashkumar Manickam
  • Publication number: 20100232440
    Abstract: Techniques are disclosed for abstracting write acceleration techniques and tape acceleration techniques away from transport providers (e.g., away from an FC or FCIP interlink between two storage area networks) and allowing acceleration to be provided as a service by nodes within the storage area network (SAN). Doing so allows the acceleration service to be provided anywhere in the SAN. Further, doing so allows users to scale the acceleration service as needed, without having to create awkward topologies of multiple VSANS. Further still, as the acceleration service is offered independently from the transport, compression, encryption, and other services may be offered as part of the transport between the FC/FCIP connection along with the acceleration service.
    Type: Application
    Filed: May 29, 2009
    Publication date: September 16, 2010
    Inventors: Murali Basavaiah, Kiron Haltore, Anand Parthasarathy
  • Patent number: 7769023
    Abstract: Disclosed are methods and apparatus for redirecting fiber channel data that is transmitted between a first and a second node, such as a host and target, in a storage area network (SAN) to an intelligent node that facilitates implementation of a service on such redirected data. Such redirection is provided transparently with respect to the first and second nodes without significantly reconfiguring the existing infrastructure of the first and second nodes. In a specific Fiber Channel implementation, the redirection is accomplished without rewiring any of the nodes in the network fabric or reconfiguring zones or virtual storage area networks (VSANs). In general, such redirection is accomplished by rewriting the data as it traverses on a path between the first and second node towards an original destination (e.g., the first or second node) so that the data is redirected to an intelligent node.
    Type: Grant
    Filed: December 21, 2005
    Date of Patent: August 3, 2010
    Assignee: Cisco Technology, Inc.
    Inventors: Anand Parthasarathy, Subrata Banerjee, Murali Basavaiah, Arpakorn Boonkongchuen, Parthiban Munusamy
  • Publication number: 20090252330
    Abstract: Efficient mechanisms are provided for transferring key objects associated with disk logical unit numbers and tape cartridges from one data center to another data center. A request is received to transfer a source data center key object from a source data center to a destination data center. The source data center key object corresponds to a data block, such as a disk logical unit number (LUN) or a tape cartridge, maintained in a storage area network (SAN) and includes a unique identifier, an encrypted key, and a wrapper unique identifier. The encrypted key is decrypted using a source data center key hierarchy. Key information is transmitted from the source data center to the destination data center. A destination data center key object is generated using a destination data center key hierarchy.
    Type: Application
    Filed: April 2, 2008
    Publication date: October 8, 2009
    Applicant: CISCO TECHNOLOGY, INC.
    Inventors: Praveen Patnala, Anand Parthasarathy, Makarand Deshmukh, Chandra Sekhar Kondamuri
  • Publication number: 20070140236
    Abstract: Disclosed are methods and apparatus for redirecting fibre channel data that is transmitted between a first and a second node, such as a host and target, in a storage area network (SAN) to an intelligent node that facilitates implementation of a service on such redirected data. Such redirection is provided transparently with respect to the first and second nodes without significantly reconfiguring the existing infrastructure of the first and second nodes. In a specific Fibre Channel implementation, the redirection is accomplished without rewiring any of the nodes in the network fabric or reconfiguring zones or virtual storage area networks (VSANs). In general, such redirection is accomplished by rewriting the data as it traverses on a path between the first and second node towards an original destination (e.g., the first or second node) so that the data is redirected to an intelligent node.
    Type: Application
    Filed: December 21, 2005
    Publication date: June 21, 2007
    Inventors: Anand Parthasarathy, Subrata Banerjee, Murali Basavaiah, Arpakorn Boonkongchuen, Parthiban Munusamy
  • Publication number: 20050190787
    Abstract: The present invention defines a new protocol for communicating with an offload engine that provides Transmission Control Protocol (“TCP”) termination over a Fibre Channel (“FC”) fabric. The offload engine terminates all protocols up to and including TCP and performs the processing associated with those layers. The offload protocol guarantees delivery and is encapsulated within FCP-formatted frames. Thus, the TCP streams are reliably passed to the host. Additionally, using this scheme, the offload engine can provide parsing of the TCP stream to further assist the host. The present invention also provides network devices (and components thereof) that are configured to perform the foregoing methods. The invention further defines how network attached storage (“NAS”) protocol data units (“PDUs”) are parsed and delivered.
    Type: Application
    Filed: April 29, 2004
    Publication date: September 1, 2005
    Applicant: Cisco Technology, Inc.
    Inventors: Timothy Kuik, David Thompson, Stephen DeGroote, Murali Basavaiah, Anand Parthasarathy