Patents by Inventor Anjali Agarwal
Anjali Agarwal 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).
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Patent number: 10547462Abstract: A system and method for generating copies of a signal includes a first radiation source configured for providing a plurality of pump radiation beams, a second radiation source configured for providing a signal radiation beam, and a second-order nonlinear optical medium to receive the plurality of pump radiation beams from the first radiation source and the signal radiation beam from the second radiation source and to emit a plurality of idlers, where the plurality of idlers are low-noise copies of the signal.Type: GrantFiled: November 4, 2016Date of Patent: January 28, 2020Assignee: Perspecta Labs Inc.Inventors: Colin McKinstrie, Anjali Agarwal
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Patent number: 10379836Abstract: A mechanism is provided in a data processing system for creating clusters on demand. The mechanism installs a cluster on the data processing system. The cluster comprises a master node and a managed node having distributed software installed thereon. The mechanism stores state of cluster on external volumes and removes references specific to the cluster from the state of the cluster stored on the external volumes. The mechanism takes a snapshot of the state of the cluster stored on the external volumes to form a set of volume templates and takes a snapshot of images of the master node and the managed node to form a set of node type images.Type: GrantFiled: January 23, 2018Date of Patent: August 13, 2019Assignee: International Business Machines CorporationInventors: Anjali Agarwal, Rachit Arora, Deepashree Gandhi, Dharmesh K. Jain, Shrinivas S. Kulkarni
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Patent number: 10379835Abstract: A mechanism is provided in a data processing system for creating clusters on demand. The mechanism installs a cluster on the data processing system. The cluster comprises a master node and a managed node having distributed software installed thereon. The mechanism stores state of cluster on external volumes and removes references specific to the cluster from the state of the cluster stored on the external volumes. The mechanism takes a snapshot of the state of the cluster stored on the external volumes to form a set of volume templates and takes a snapshot of images of the master node and the managed node to form a set of node type images.Type: GrantFiled: December 19, 2016Date of Patent: August 13, 2019Assignee: International Business Machines CorporationInventors: Anjali Agarwal, Rachit Arora, Deepashree Gandhi, Dharmesh K. Jain, Shrinivas S. Kulkarni
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Patent number: 10305971Abstract: A mechanism is provided for automatically recovering one or more distributed cluster nodes on a host system. Responsive to the host system recovering, restoring, or restarting, a set of distributed clustered systems affected due to the reboot of the host system and details associated with each of the set of distributed clustered systems are identified. Using the details, a set of nodes that operate on the host system are identified. For each node: respective components and configurations are prepared; a heartbeat is initiated thereby causing the node to register with a cluster network and identify peers within their associated distributed clustered system; a determination is made as to whether the node has reestablished connection with its associated distributed clustered system; and, responsive to the node reestablishing connection with its associated distributed clustered system, service components are started on the node.Type: GrantFiled: January 25, 2018Date of Patent: May 28, 2019Assignee: International Business Machines CorporationInventors: Anjali Agarwal, Rachit Arora, Rakhi S. Arora, Dharmesh K. Jain, Shrinivas S. Kulkarni
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Patent number: 10305970Abstract: A mechanism is provided for automatically recovering one or more distributed cluster nodes on a host system. Responsive to the host system recovering, restoring, or restarting, a set of distributed clustered systems affected due to the reboot of the host system and details associated with each of the set of distributed clustered systems are identified. Using the details, a set of nodes that operate on the host system are identified. For each node: respective components and configurations are prepared; a heartbeat is initiated thereby causing the node to register with a cluster network and identify peers within their associated distributed clustered system; a determination is made as to whether the node has reestablished connection with its associated distributed clustered system; and, responsive to the node reestablishing connection with its associated distributed clustered system, service components are started on the node.Type: GrantFiled: December 13, 2016Date of Patent: May 28, 2019Assignee: International Business Machines CorporationInventors: Anjali Agarwal, Rachit Arora, Rakhi S. Arora, Dharmesh K. Jain, Shrinivas S. Kulkarni
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Patent number: 10050720Abstract: Devices and methods for converting an input electromagnetic signal to an output optical signal consisting of dual sidebands with equalized quantum-limited noise figures of about 3 dB are provided. For instance, a device includes an input for receiving the input electromagnetic signal and an output for delivering the output optical signal; and a non-linear material component connected between the input and the output of the device, the non-linear material component having a non-linear electric susceptibility, wherein the non-linear electric susceptibility of the non-linear material component is selected to mix the input signal with an optical pump signal to produce the output optical signal, wherein the output optical signal has sidebands corresponding to the input signal, and amplifying this optical signal in a phase-sensitive amplifier to produce an output optical signal with sidebands having equalized amplitudes and noise figures.Type: GrantFiled: May 27, 2016Date of Patent: August 14, 2018Assignee: Vencore Labs, Inc.Inventors: James Dailey, Anjali Agarwal, Paul Toliver, Colin McKinstrie, Nicholas Peters
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Publication number: 20180173512Abstract: A mechanism is provided in a data processing system for creating clusters on demand. The mechanism installs a cluster on the data processing system. The cluster comprises a master node and a managed node having distributed software installed thereon. The mechanism stores state of cluster on external volumes and removes references specific to the cluster from the state of the cluster stored on the external volumes. The mechanism takes a snapshot of the state of the cluster stored on the external volumes to form a set of volume templates and takes a snapshot of images of the master node and the managed node to form a set of node type images.Type: ApplicationFiled: December 19, 2016Publication date: June 21, 2018Inventors: Anjali Agarwal, Rachit Arora, Deepashree Gandhi, Dharmesh K. Jain, Shrinivas S. Kulkarni
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Publication number: 20180173513Abstract: A mechanism is provided in a data processing system for creating clusters on demand. The mechanism installs a cluster on the data processing system. The cluster comprises a master node and a managed node having distributed software installed thereon. The mechanism stores state of cluster on external volumes and removes references specific to the cluster from the state of the cluster stored on the external volumes. The mechanism takes a snapshot of the state of the cluster stored on the external volumes to form a set of volume templates and takes a snapshot of images of the master node and the managed node to form a set of node type images.Type: ApplicationFiled: January 23, 2018Publication date: June 21, 2018Inventors: Anjali Agarwal, Rachit Arora, Deepashree Gandhi, Dharmesh K. Jain, Shrinivas S. Kulkarni
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Publication number: 20180167447Abstract: A mechanism is provided tor automatically recovering one or more distributed cluster nodes on a host system. Responsive to the host system recovering, restoring, or restarting, a set of distributed clustered systems affected due to the reboot of the host system and details associated with each of the set of distributed clustered systems are identified. Using the details, a set of nodes that operate on the host system are identified. For each node: respective components and configurations are prepared; a heartbeat is initiated thereby causing the node to register with a cluster network and identify peers within their associated distributed clustered system; a determination is made as to whether the node has reestablished connection with its associated distributed clustered system; and, responsive to the node reestablishing connection with its associated distributed clustered system, service components are started on the node.Type: ApplicationFiled: December 13, 2016Publication date: June 14, 2018Inventors: Anjali Agarwal, Rachit Arora, Rakhi S. Arora, Dharmesh K. Jain, Shrinivas S. Kulkarni
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Publication number: 20180167448Abstract: A mechanism is provided for automatically recovering one or more distributed cluster nodes on a host system. Responsive to the host system recovering, restoring, or restarting, a set of distributed clustered systems affected due to the reboot of the host system and details associated with each of the set of distributed clustered systems are identified. Using the details, a set of nodes that operate on the host system are identified. For each node: respective components and configurations are prepared; a heartbeat is initiated thereby causing the node to register with a cluster network and identify peers within their associated distributed clustered system; a determination is made as to whether the node has reestablished connection with its associated distributed clustered system; and, responsive to the node reestablishing connection with its associated distributed clustered system, service components are started on the node.Type: ApplicationFiled: January 25, 2018Publication date: June 14, 2018Inventors: Anjali Agarwal, Rachit Arora, Rakhi S. Arora, Dharmesh K. Jain, Shrinivas S. Kulkarni
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Patent number: 9979484Abstract: A system and method for channelization of a wideband radio frequency signal into multiple narrowband channels includes obtaining, a dual-banded optical signal, where the dual-banded signal is a translated wideband radio frequency signal, and where the dual-banded signal includes a signal and an idler. The method also includes modifying, by the spectral phase mask, the spectral phases of at least one of the signal or the idler, where the modifying produces a spectral phase modulated output comprising at least one of a spectrally-modulated signal or a spectrally modulated idler. The method includes outputting, by the spectral phase mask, the spectral phase modulated output to an optical phase sensitive amplifier. The method includes receiving, by the optical phase sensitive amplifier, the spectral phase modulated output, and either amplifying or de-amplifying, by the optical phase sensitive amplifier, each component of the spectrally modulated output.Type: GrantFiled: February 1, 2017Date of Patent: May 22, 2018Assignee: Vencore Labs, Inc.Inventors: James M. Dailey, Anjali Agarwal, Paul Toliver, Tom Banwell
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Patent number: 9954623Abstract: Provided are methods and systems for controlling a phase characteristic of entangled photon pairs. The phase characteristic may be a relative phase difference between photons of the entangled photon pair. Also provided are methods and systems for stabilizing distributed interferometers used in quantum communication systems.Type: GrantFiled: December 4, 2015Date of Patent: April 24, 2018Assignee: Vencore Labs, Inc.Inventors: James M. Dailey, Anjali Agarwal, Paul Toliver, Nicholas Peters
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Patent number: 9753353Abstract: A system and method for separating signal quadratures includes obtaining, by a parametric amplifier, an input signal, amplifying, by the parametric amplifier, the input signal to create an amplified signal and generating an idler. The idler is a conjugate image of the input signal. The system and method also include obtaining, by a frequency converter, the amplified signal and the conjugate image and converting the amplified signal and the conjugate image into a first output and a second output, where the first output includes a first signal quadrature and the second output includes a second output quadrature.Type: GrantFiled: May 27, 2016Date of Patent: September 5, 2017Assignee: Vencore Labs, Inc.Inventors: Colin McKinstrie, Anjali Agarwal
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Patent number: 9735890Abstract: In one aspect, there is provided a method for transmitting a two-qubit state. The method includes: propagating the two-qubit state onto a transmission waveguide, wherein the propagating includes distributing the two-qubit state about a certain phase; and transmitting the two-qubit state through the transmission waveguide using a pump pulse having the certain phase, wherein the pump pulse is provided in a manner so that the transmission waveguide functions as an optical phase sensitive amplifier (OPSA).Type: GrantFiled: November 20, 2015Date of Patent: August 15, 2017Assignee: Vencore Labs, Inc.Inventors: Anjali Agarwal, James Dailey, Paul Toliver, Nicholas Peters
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Publication number: 20170222721Abstract: A system and method for channelization of a wideband radio frequency signal into multiple narrowband channels includes obtaining, a dual-banded optical signal, where the dual-banded signal is a translated wideband radio frequency signal, and where the dual-banded signal includes a signal and an idler. The method also includes modifying, by the spectral phase mask, the spectral phases of at least one of the signal or the idler, where the modifying produces a spectral phase modulated output comprising at least one of a spectrally-modulated signal or a spectrally modulated idler. The method includes outputting, by the spectral phase mask, the spectral phase modulated output to an optical phase sensitive amplifier. The method includes receiving, by the optical phase sensitive amplifier, the spectral phase modulated output, and either amplifying or de-amplifying, by the optical phase sensitive amplifier, each component of the spectrally modulated output.Type: ApplicationFiled: February 1, 2017Publication date: August 3, 2017Inventors: James M. DAILEY, Anjali AGARWAL, Paul TOLIVER, Tom BANWELL
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Publication number: 20170214474Abstract: Devices and methods for converting an input electromagnetic signal to an output optical signal consisting of dual sidebands with equalized quantum-limited noise figures of about 3 dB are provided. For instance, a device includes an input for receiving the input electromagnetic signal and an output for delivering the output optical signal; and a non-linear material component connected between the input and the output of the device, the non-linear material component having a non-linear electric susceptibility, wherein the non-linear electric susceptibility of the non-linear material component is selected to mix the input signal with an optical pump signal to produce the output optical signal, wherein the output optical signal has sidebands corresponding to the input signal, and amplifying this optical signal in a phase-sensitive amplifier to produce an output optical signal with sidebands having equalized amplitudes and noise figures.Type: ApplicationFiled: May 27, 2016Publication date: July 27, 2017Inventors: James Dailey, Anjali Agarwal, Paul Toliver, Colin McKinstrie, Nicholas Peters
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Patent number: 9698915Abstract: A system and method for processing an input signal includes a non-linear material component for receiving the signal. The non-linear material component is selected to mix the input signal with an optical pump wave to output an optical signal. The system also includes a parametric amplifier coupled to the non-linear material to obtain the optical signal and to amplify the optical signal to generate an amplified signal and an amplified idler which is a conjugate image of the amplified signal. The system also includes a frequency converter, to obtain the amplified signal and the amplified idler from the parametric amplifier and to convert the amplified signal and the amplified idler into a first output and a second output. The system also includes a first spectral sampling and processing apparatus to obtain and process the first output.Type: GrantFiled: May 27, 2016Date of Patent: July 4, 2017Assignee: Vencore Labs, Inc.Inventors: James Dailey, Anjali Agarwal, Paul Toliver, Colin McKinstrie, Nicholas Peters
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Publication number: 20170149577Abstract: A system and method for generating copies of a signal includes a first radiation source configured for providing a plurality of pump radiation beams, a second radiation source configured for providing a signal radiation beam, and a second-order nonlinear optical medium to receive the plurality of pump radiation beams from the first radiation source and the signal radiation beam from the second radiation source and to emit a plurality of idlers, where the plurality of idlers are low-noise copies of the signal.Type: ApplicationFiled: November 4, 2016Publication date: May 25, 2017Inventors: Colin McKINSTRIE, Anjali AGARWAL
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Publication number: 20170019185Abstract: In one aspect, there is provided a method for transmitting a two-qubit state. The method includes: propagating the two-qubit state onto a transmission waveguide, wherein the propagating includes distributing the two-qubit state about a certain phase; and transmitting the two-qubit state through the transmission waveguide using a pump pulse having the certain phase, wherein the pump pulse is provided in a manner so that the transmission waveguide functions as an optical phase sensitive amplifier (OPSA).Type: ApplicationFiled: November 20, 2015Publication date: January 19, 2017Applicant: VENCORE LABS, INC.Inventors: Anjali AGARWAL, James DAILEY, Paul TOLIVER, Nicholas Peters
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Publication number: 20160359569Abstract: A system and method for processing an input signal includes a non-linear material component for receiving the signal. The non-linear material component is selected to mix the input signal with an optical pump wave to output an optical signal. The system also includes a parametric amplifier coupled to the non-linear material to obtain the optical signal and to amplify the optical signal to generate an amplified signal and an amplified idler which is a conjugate image of the amplified signal. The system also includes a frequency converter, to obtain the amplified signal and the amplified idler from the parametric amplifier and to convert the amplified signal and the amplified idler into a first output and a second output. The system also includes a first spectral sampling and processing apparatus to obtain and process the first output.Type: ApplicationFiled: May 27, 2016Publication date: December 8, 2016Inventors: James Dailey, Anjali Agarwal, Paul Toliver, Colin McKinstrie, Nicholas Peters