Patents by Inventor Sudhir Aggarwal

Sudhir Aggarwal 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).

  • Publication number: 20230012801
    Abstract: An exemplary system and method facilitate the identify and/or extract content hiding software, e.g., in a software curation environment (e.g., Apple's App Store). In some embodiments, the exemplary system and method may be applied to U.S.-based platforms as well as international platforms in Russia, India, China, among others.
    Type: Application
    Filed: June 30, 2022
    Publication date: January 19, 2023
    Inventors: Gokila Dorai, Sudhir Aggarwal, Charisa Powell, Neet Patel
  • Patent number: 11513812
    Abstract: Many mobile devices are used for documenting different scenarios that are encountered by the users as they go about their daily lives. In many situations, a mobile device may be used to document the scenario. This data may be of significant forensic interest to an investigator. In many situations, the owner of the phone may be willing to provide the investigator access to this data (through a documented consent agreement). Such consent is usually contingent upon the fact that not all the data available on the phone may be extracted for analysis, either due to privacy concerns or due to personal reasons. Courts have also opined in several cases that investigators must limit data extracted, so as to focus on only “relevant information” for the investigation at hand. Thus, only selective (or filtered) data should be extracted as per the consent available from the witness/victim (user). Described herein is the design and implementation of such a targeted data extraction system (TDES) for mobile devices.
    Type: Grant
    Filed: January 6, 2020
    Date of Patent: November 29, 2022
    Assignees: Sam Houston State University, Florida State University Research Foundation, Inc.
    Inventors: Sudhir Aggarwal, Gokila Dorai, Umit Karabiyik, Tathagata Mukherjee, Nicholas A Guerra, Manuel Hernandez-Romero, James Parsons, Khushboo Rathi
  • Publication number: 20200218546
    Abstract: Many mobile devices are used for documenting different scenarios that are encountered by the users as they go about their daily lives. In many situations, a mobile device may be used to document the scenario. This data may be of significant forensic interest to an investigator. In many situations, the owner of the phone may be willing to provide the investigator access to this data (through a documented consent agreement). Such consent is usually contingent upon the fact that not all the data available on the phone may be extracted for analysis, either due to privacy concerns or due to personal reasons. Courts have also opined in several cases that investigators must limit data extracted, so as to focus on only “relevant information” for the investigation at hand. Thus, only selective (or filtered) data should be extracted as per the consent available from the witness/victim (user). Described herein is the design and implementation of such a targeted data extraction system (TDES) for mobile devices.
    Type: Application
    Filed: January 6, 2020
    Publication date: July 9, 2020
    Inventors: Sudhir Aggarwal, Gokila Dorai, Umit Karabiyik, Tathagata Mukherjee, Nicholas A. Guerra, Manuel Hernandez-Romero, James Parsons, Khushboo Rathi
  • Patent number: 9768797
    Abstract: Methods and apparatus, including computer program products, are provided for receivers. In one aspect there is provided an apparatus. The apparatus may include an in-phase sigma delta receiver coupled to a radio frequency input port providing at least a first carrier aggregation signal and a second carrier aggregation signal; and a quadrature phase sigma delta receiver coupled to the radio frequency input port providing at least the first carrier aggregation signal and the second aggregation signal, wherein the in-phase sigma delta receiver and the quadrature phase sigma delta receiver each include a resonator stage circuitry including at least one variable capacitor that varies notch frequencies to provide passbands for the first carrier aggregation signal and the second carrier aggregation signal. Related apparatus, systems, methods, and articles are also described.
    Type: Grant
    Filed: November 3, 2015
    Date of Patent: September 19, 2017
    Assignee: Nokia Technologies Oy
    Inventors: Chadi Jabbour, Seyed Majid Homayouni, Sudhir Aggarwal, Vason P. Srini
  • Patent number: 9634702
    Abstract: Methods and apparatus, including computer program products, are provided for receivers. In one aspect there is provided an apparatus. In some example embodiments, there is provided an apparatus. The apparatus may include a first N-path filter configured with at least a first passband, wherein the first N-path filter is coupled to a radio frequency input port providing at least a first carrier aggregation signal, a second carrier aggregation signal, and an interfering signal; a second N-path filter configured with at least a second passband, wherein the second N-path filter is coupled to the radio frequency input port providing at least the first carrier aggregation signal, the second carrier aggregation signal, and the interfering signal; and a combiner configured to subtract a first output of the first N-path filter from a second output of the second N-path filter. Related apparatus, systems, methods, and articles are also described.
    Type: Grant
    Filed: November 3, 2015
    Date of Patent: April 25, 2017
    Assignee: Nokia Technologies Oy
    Inventors: Chadi Jabbour, Sudhir Aggarwal, Vason P. Srini
  • Patent number: 9524393
    Abstract: A system for analyzing and modifying passwords in a manner that provides a user with a strong and usable/memorable password. The user would propose a password that has relevance and can be remembered. The invention would evaluate the password to ascertain its strength. The evaluation is based on a probabilistic password cracking system that is trained on sets of revealed passwords and that can generate password guesses in highest probability order. If the user's proposed password is strong enough, the proposed password is accepted. If the user's proposed password is not strong enough, the system will reject it. If the proposed password is rejected, the system modifies the password and suggests one or more stronger passwords. The modified passwords would have limited modifications to the proposed password. Thus, the user has a tested strong and memorable password.
    Type: Grant
    Filed: April 30, 2014
    Date of Patent: December 20, 2016
    Assignee: The Florida State University Research Foundation, Inc.
    Inventors: Sudhir Aggarwal, Shiva Houshmand Yazdi, Charles Matt Weir
  • Publication number: 20160322996
    Abstract: Methods and apparatus, including computer program products, are provided for receivers. In one aspect there is provided an apparatus. In some example embodiments, there is provided an apparatus. The apparatus may include a first N-path filter configured with at least a first passband, wherein the first N-path filter is coupled to a radio frequency input port providing at least a first carrier aggregation signal, a second carrier aggregation signal, and an interfering signal; a second N-path filter configured with at least a second passband, wherein the second N-path filter is coupled to the radio frequency input port providing at least the first carrier aggregation signal, the second carrier aggregation signal, and the interfering signal; and a combiner configured to subtract a first output of the first N-path filter from a second output of the second N-path filter. Related apparatus, systems, methods, and articles are also described.
    Type: Application
    Filed: November 3, 2015
    Publication date: November 3, 2016
    Inventors: Chadi Jabbour, Sudhir Aggarwal, Vason P. Srini
  • Publication number: 20160269042
    Abstract: Methods and apparatus, including computer program products, are provided for receivers. In one aspect there is provided an apparatus. The apparatus may include an in-phase sigma delta receiver coupled to a radio frequency input port providing at least a first carrier aggregation signal and a second carrier aggregation signal; and a quadrature phase sigma delta receiver coupled to the radio frequency input port providing at least the first carrier aggregation signal and the second aggregation signal, wherein the in-phase sigma delta receiver and the quadrature phase sigma delta receiver each include a resonator stage circuitry including at least one variable capacitor that varies notch frequencies to provide passbands for the first carrier aggregation signal and the second carrier aggregation signal. Related apparatus, systems, methods, and articles are also described.
    Type: Application
    Filed: November 3, 2015
    Publication date: September 15, 2016
    Inventors: Chadi Jabbour, Seyed Majid Homayouni, Sudhir Aggarwal, Vason P. Srini
  • Patent number: 9438419
    Abstract: System and methodology that utilizes keyboard patterns and alpha string patterns for password cracking. Keyboard patterns can be used as components of passwords, and the relevant shapes can extracted from these keyboard patterns and passwords. This keyboard information can be used to extend a probabilistic context-free grammar that can then be used to generate guesses containing keyboard patterns. Further, patterns in alpha strings, such as repeated words and multi-words, can be systematically learned using a training dictionary. This information can be used to extend the probabilistic context-free grammars which leads to generation of guesses based on the distribution of these patterns in the alpha strings, Keyboard patterns and alpha string patterns, individually and in combination, are shown herein to be effective for password cracking.
    Type: Grant
    Filed: June 30, 2014
    Date of Patent: September 6, 2016
    Assignee: The Florida State University Research Foundation, Inc.
    Inventors: Sudhir Aggarwal, Shiva Houshmand, Randy Flood
  • Patent number: 9407482
    Abstract: Methods and apparatus, including computer program products, are provided for tunable filters. In one aspect there is provided an apparatus. The apparatus may include a bandpass filter comprising a resistive-capacitive configuration of N-path filters tunable to a first center frequency based on at least a first clock frequency; a notch filter comprising a capacitive-resistive configuration of N-path filters tunable to a second center frequency based on at least a second clock frequency; and a combiner coupled to the bandpass filter and the notch filter to combine a bandpass output signal provided by the bandpass filter and a notch output signal provided by the notch filter, wherein the combiner outputs a combined output. Related apparatus, systems, methods, and articles are also described.
    Type: Grant
    Filed: November 11, 2013
    Date of Patent: August 2, 2016
    Assignee: Nokia Technologies Oy
    Inventors: Sudhir Aggarwal, Md Naimul Hasan
  • Patent number: 9136815
    Abstract: A variable bandwidth filter includes a first filter branch in parallel with a second filter branch. The first filter branch includes a first resistance in series with an input and a first output, and N parallel paths across the first output. The second filter branch includes a second resistance in series with the input and a second output, and N parallel paths across the second output. A clock tunes the first and second filter branches to a center frequency. A combiner produces a difference signal including a difference between the output of the first filter branch and the output of the second filter branch to provide a filter output having an adjustable bandwidth with reference to a center frequency. The bandwidth is adjusted by changing a value of at least one resistor or at least one capacitor in one or more of the first filter branch or the second filter branch.
    Type: Grant
    Filed: March 28, 2013
    Date of Patent: September 15, 2015
    Assignee: Nokia Technologies Oy
    Inventors: Sudhir Aggarwal, Xiao Xiao
  • Patent number: 9136825
    Abstract: A tracking circuit has first and second filters controlled by clock signals and a combiner. Each filter has N paths in parallel between an input and an output, each path comprising a respective first/second sub-circuit and a switch (N is an integer >1). The clock signals selectively control each of the N switches of the first and second filters at a same frequency, and in variously described embodiments the first and second on-time durations may be different, the first and second sub-circuits may be different, or both first/second on-time durations and first/second sub-circuits may be different. Signals output from the first and second filter are added at a combiner. In certain examples each path in the first and second filter is controlled by same-phase clock signals, and every path on either filter are controlled with different-phase clock signals.
    Type: Grant
    Filed: June 13, 2012
    Date of Patent: September 15, 2015
    Assignee: Nokia Technologies Oy
    Inventor: Sudhir Aggarwal
  • Patent number: 9130532
    Abstract: Methods and apparatus, including computer program products, are provided for RF filtering. Related apparatus, systems, methods, and articles are also described.
    Type: Grant
    Filed: December 12, 2013
    Date of Patent: September 8, 2015
    Assignee: Nokia Technologies Oy
    Inventors: Md. Naimul Hasan, Sudhir Aggarwal
  • Patent number: 9089771
    Abstract: The invention includes a method and apparatus for synchronizing an asset within application space. The method includes receiving asset information comprising an original position of the asset within application space on a sending system and a trajectory of the asset within application space on the sending system, and determining an updated position adapted for placing the asset within application space on a receiving system, wherein the updated position is determined using the original position, the trajectory, and an expected propagation delay from the sending system to the receiving system. The expected propagation delay between the sending and receiving systems is determined by one or more network proxies. The original position and trajectory of the asset may be received in a data structure which may be modified to include the updated position for use by the receiving system in placing the asset within application space on the receiving system.
    Type: Grant
    Filed: October 10, 2006
    Date of Patent: July 28, 2015
    Assignee: Alcatel Lucent
    Inventors: Sudhir Aggarwal, Hemant Banavar, Sarit Mukherjee, Sampath Rangarajan
  • Publication number: 20150171819
    Abstract: Methods and apparatus, including computer program products, are provided for RF filtering. Related apparatus, systems, methods, and articles are also described.
    Type: Application
    Filed: December 12, 2013
    Publication date: June 18, 2015
    Applicant: Nokia Corporation
    Inventors: Md. Naimul Hasan, Sudhir Aggarwal
  • Publication number: 20150133068
    Abstract: Methods and apparatus, including computer program products, are provided for tunable filters. In one aspect there is provided an apparatus. The apparatus may include a bandpass filter comprising a resistive-capacitive configuration of N-path filters tunable to a first center frequency based on at least a first clock frequency; a notch filter comprising a capacitive-resistive configuration of N-path filters tunable to a second center frequency based on at least a second clock frequency; and a combiner coupled to the bandpass filter and the notch filter to combine a bandpass output signal provided by the bandpass filter and a notch output signal provided by the notch filter, wherein the combiner outputs a combined output. Related apparatus, systems, methods, and articles are also described.
    Type: Application
    Filed: November 11, 2013
    Publication date: May 14, 2015
    Applicant: Nokia Corporation
    Inventors: Sudhir Aggarwal, Hasan Md-Naimal
  • Publication number: 20140373088
    Abstract: A system for analyzing and modifying passwords in a manner that provides a user with a strong and usable/memorable password. The user would propose a password that has relevance and can be remembered. The invention would evaluate the password to ascertain its strength. The evaluation is based on a probabilistic password cracking system that is trained on sets of revealed passwords and that can generate password guesses in highest probability order. If the user's proposed password is strong enough, the proposed password is accepted. If the user's proposed password is not strong enough, the system will reject it. If the proposed password is rejected, the system modifies the password and suggests one or more stronger passwords. The modified passwords would have limited modifications to the proposed password. Thus, the user has a tested strong and memorable password.
    Type: Application
    Filed: April 30, 2014
    Publication date: December 18, 2014
    Applicant: The Florida State University Research Foundation, Inc.
    Inventors: Sudhir Aggarwal, Shiva Houshmand Yazdi, Charles Matt Weir
  • Publication number: 20130336342
    Abstract: A tracking circuit has first and second filters controlled by clock signals and a combiner. Each filter has N paths in parallel between an input and an output, each path comprising a respective first/second sub-circuit and a switch (N is an integer >1). The clock signals selectively control each of the N switches of the first and second filters at a same frequency, and in variously described embodiments the first and second on-time durations may be different, the first and second sub-circuits may be different, or both first/second on-time durations and first/second sub-circuits may be different. Signals output from the first and second filter are added at a combiner. In certain examples each path in the first and second filter is controlled by same-phase clock signals, and every path on either filter are controlled with different-phase clock signals.
    Type: Application
    Filed: June 13, 2012
    Publication date: December 19, 2013
    Inventor: Sudhir Aggarwal
  • Publication number: 20130335163
    Abstract: A variable bandwidth filter comprises a first filter branch in parallel with a second filter branch. The first filter branch comprises a first resistance in series with an input and a first output, and N parallel paths across the first output, each path comprising a corresponding capacitor in series with a corresponding switch and a common terminal. The second filter branch comprises a second resistance in series with the input and a second output, and N parallel paths across the second output, each path comprising an RC network in series with a switch and a common terminal. A clock tunes the first and second filter branches to a center frequency by controlling the switches of the first and second filter branches. A combiner produces a difference signal comprising a difference between the output of the first filter branch and the output of the second filter branch to provide a filter output having an adjustable bandwidth with reference to a center frequency.
    Type: Application
    Filed: March 28, 2013
    Publication date: December 19, 2013
    Inventors: Sudhir AGGARWAL, Xiao Xiao
  • Patent number: 8465424
    Abstract: A method and apparatus is disclosed herein for monitoring vital signs using a health monitor embedded into a mobile device. In one embodiment, the apparatus comprises a mobile device having an embedded health monitor to take measurements of vital signs of an individual, to determine vital sign parameters from the measurements, and to transfer the vital sign parameters; and a computing system communicably coupled to the mobile device to store the vital sign parameters and to perform trend analysis on stored vital sign parameters and to provide feedback to the user or user specified persons and generate alarms.
    Type: Grant
    Filed: March 24, 2008
    Date of Patent: June 18, 2013
    Assignee: Sudhir Aggarwal
    Inventor: Sudhir Aggarwal