Patents by Inventor Ajit Sharma

Ajit Sharma 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: 20150263744
    Abstract: An analog-to-digital converter (ADC) includes a first comparator, a second comparator, and a decision timing comparison logic unit. The first comparator is configured to output a first output voltage and the second comparator is configured to output a second output voltage during a same binary algorithmic iteration of the ADC. The decision timing comparison logic unit is configured to identify a first polarity of the first output voltage and a second polarity of the second output voltage and, if the first polarity is equivalent to a second polarity, to insert at least one redundant capacitor for a next binary algorithmic iteration of the ADC.
    Type: Application
    Filed: March 13, 2014
    Publication date: September 17, 2015
    Applicant: Texas Instruments Incorporated
    Inventors: Ajit Sharma, Seung Bae Lee, Srinath M. Ramaswamy, Sriram Narayanan, Arup Polley
  • Patent number: 9007244
    Abstract: A mixed signal device includes an analog circuit and a digital circuit coupled to the analog circuit. The digital circuit includes a component that samples a signal at a sampling rate that is dynamically variable by the digital circuit based on the bandwidth of the incoming signal. The digital circuit is to automatically assert a signal to the analog circuit to change a bias current of the analog circuit based on a change to the sampling rate in the digital circuit.
    Type: Grant
    Filed: July 1, 2014
    Date of Patent: April 14, 2015
    Assignee: Texas Instruments Incorporated
    Inventors: Ajit Sharma, Sriram Narayanan, Srinath M. Ramaswamy
  • Patent number: 8975963
    Abstract: A circuit includes a first amplifier configured to amplify an input signal to generate an output signal. An offset sensor is configured to sense DC offset based on the output signal, where the offset sensor includes a second amplifier configured to generate an offset reduction signal for the first amplifier based on the sensed DC offset. A T-network in the circuit includes at least three resistors coupled to provide a feedback connection between the input signal and the output signal for the first amplifier and to receive the offset reduction signal to mitigate DC offset in the first amplifier. Since this method reduces the low-frequency component of the signal, it also shapes and reduces the flicker noise.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: March 10, 2015
    Assignee: Texas Instruments Incorporated
    Inventors: Ajit Sharma, Kemal S. Demirci
  • Publication number: 20150002324
    Abstract: A mixed signal device includes an analog circuit and a digital circuit coupled to the analog circuit. The digital circuit includes a component that samples a signal at a sampling rate that is dynamically variable by the digital circuit based on the bandwidth of the incoming signal. The digital circuit is to automatically assert a signal to the analog circuit to change a bias current of the analog circuit based on a change to the sampling rate in the digital circuit.
    Type: Application
    Filed: July 1, 2014
    Publication date: January 1, 2015
    Inventors: Ajit SHARMA, Sriram NARAYANAN, Srinath M. RAMASWAMY
  • Patent number: 8782211
    Abstract: An example network device includes a data repository configured to store data defining a plurality of time slots, programmable processors that provide an amount of available system processing capacity for each of the time slots, a network communication protocol module configured to perform network communication events, and a system load prediction module. The system load prediction module predicts future events that the network device expects to perform in accordance with the network communication protocol, wherein each of the predicted events requires an amount of system processing capacity to complete, and distributes each of the predicted events across the time slots to reserve the amount of system processing capacity required to complete each of the predicted events from the amount of available system processing capacity of each of the time slots without exceeding a threshold that limits utilization of the amount of system processing capacity for each of the time slots.
    Type: Grant
    Filed: December 21, 2010
    Date of Patent: July 15, 2014
    Assignee: Juniper Networks, Inc.
    Inventor: Ajit Sharma
  • Patent number: 8677821
    Abstract: Disclosed are methods and a sensor architecture that utilizes the residual quadrature error in a gyroscope to achieve and maintain perfect mode-matching, i.e., ˜0 Hz split between the drive and sense mode frequencies, and to electronically control sensor bandwidth. In a reduced-to-practice embodiment, a 6 mW, 3V CMOS ASIC and control algorithm are interfaced to a mode-matched MEMS tuning fork gyroscope to implement an angular rate sensor with bias drift as low as 0.15°/hr and angle random walk of 0.003°/?hr, which is the lowest recorded to date for a silicon MEMS gyroscope. The system bandwidth can be configured between 0.1 Hz and 1 kHz.
    Type: Grant
    Filed: May 19, 2011
    Date of Patent: March 25, 2014
    Assignee: Georgia Tech Research Coporation
    Inventors: Farrokh Ayazi, Ajit Sharma, Mohammad Faisal Zaman
  • Publication number: 20130257536
    Abstract: A circuit includes a first amplifier configured to amplify an input signal to generate an output signal. An offset sensor is configured to sense DC offset based on the output signal, where the offset sensor includes a second amplifier configured to generate an offset reduction signal for the first amplifier based on the sensed DC offset. A T-network in the circuit includes at least three resistors coupled to provide a feedback connection between the input signal and the output signal for the first amplifier and to receive the offset reduction signal to mitigate DC offset in the first amplifier. Since this method reduces the low-frequency component of the signal, it also shapes and reduces the flicker noise.
    Type: Application
    Filed: March 15, 2013
    Publication date: October 3, 2013
    Applicant: TEXAS INSTRUMENTS INCORPORATED
    Inventors: AJIT SHARMA, Kemal S. DEMIRCI
  • Publication number: 20120192647
    Abstract: Disclosed are methods and a sensor architecture that utilizes the residual quadrature error in a gyroscope to achieve and maintain perfect mode-matching, i.e., ˜0 Hz split between the drive and sense mode frequencies, and to electronically control sensor bandwidth. In a reduced-to-practice embodiment, a 6 mW, 3V CMOS ASIC and control algorithm are interfaced to a mode-matched MEMS tuning fork gyroscope to implement an angular rate sensor with bias drift as low as 0.15°/hr and angle random walk of 0.003°/?hr, which is the lowest recorded to date for a silicon MEMS gyroscope. The system bandwidth can be configured between 0.1 Hz and 1 kHz.
    Type: Application
    Filed: May 19, 2011
    Publication date: August 2, 2012
    Inventors: Farrokh Ayazi, Ajit Sharma, Mohammad Faisal Zaman
  • Publication number: 20120149866
    Abstract: What is disclosed relates to polymers that resist dissolution in organic solvents, are vasodilators, and are tunable explosives. These polymers also form solvent resistant coatings and solvent resistant fibers as well as bonding materials.
    Type: Application
    Filed: July 8, 2010
    Publication date: June 14, 2012
    Inventors: Dillip K. Mohanty, Ajit Sharma
  • Patent number: 8101708
    Abstract: What is disclosed relates to polymers that resist dissolution in organic solvents, are vasodilators, and are tunable explosives. These polymers also form solvent resistant coatings and solvent resistant fibers as well as bonding materials.
    Type: Grant
    Filed: January 7, 2011
    Date of Patent: January 24, 2012
    Inventors: Dillip K. Mohanty, Ajit Sharma
  • Patent number: 8061201
    Abstract: Disclosed are methods and a sensor architecture that utilizes the residual quadrature error in a gyroscope to achieve and maintain perfect mode-matching, i.e., ˜0 Hz split between the drive and sense mode frequencies, and to electronically control sensor bandwidth. In a reduced-to-practice embodiment, a 6 mW, 3V CMOS ASIC and control algorithm are interfaced to a mode-matched MEMS tuning fork gyroscope to implement an angular rate sensor with bias drift as low as 0.15°/hr and angle random walk of 0.003°/?hr, which is the lowest recorded to date for a silicon MEMS gyroscope. The system bandwidth can be configured between 0.1 Hz and 1 kHz.
    Type: Grant
    Filed: July 11, 2008
    Date of Patent: November 22, 2011
    Assignee: Georgia Tech Research Corporation
    Inventors: Farrokh Ayazi, Ajit Sharma, Mohammad Faisal Zaman
  • Publication number: 20110172385
    Abstract: What is disclosed relates to polymers that resist dissolution in organic solvents, are vasodilators, and are tunable explosives. These polymers also form solvent resistant coatings and solvent resistant fibers as well as bonding materials.
    Type: Application
    Filed: January 7, 2011
    Publication date: July 14, 2011
    Inventors: Dillip K. Mohanty, Ajit Sharma
  • Patent number: 7915377
    Abstract: What is disclosed relates to polymers that resist dissolution in organic solvents, are vasodilators, and are tunable explosives. These polymers also form solvent resistant coatings and solvent resistant fibers as well as bonding materials.
    Type: Grant
    Filed: January 12, 2010
    Date of Patent: March 29, 2011
    Assignee: Central Michigan University Board of Trustees
    Inventors: Dillip K. Mohanty, Ajit Sharma
  • Publication number: 20110009595
    Abstract: What is disclosed relates to polymers that resist dissolution in organic solvents, are vasodilators, and are tunable explosives. These polymers also form solvent resistant coatings and solvent resistant fibers as well as bonding materials.
    Type: Application
    Filed: January 12, 2010
    Publication date: January 13, 2011
    Inventors: Dillip K. Mohanty, Ajit Sharma
  • Patent number: 7776997
    Abstract: What is disclosed relates to polymers that resist dissolution in organic solvents, are vasodilators, and are tunable explosives. These polymers also form solvent resistant coatings and solvent resistant fibers as well as bonding materials.
    Type: Grant
    Filed: February 3, 2006
    Date of Patent: August 17, 2010
    Assignee: Central Michigan University Board of Trustees
    Inventors: Dillip K. Mohanty, Ajit Sharma
  • Patent number: 7432239
    Abstract: A process for forming a conjugate of a polyoxyalkylene polymer, such as polyethylene glycol, with a compound containing an amine group(s) and/or a sulfide group(s) by reacting the compound with an acrylate terminated polyoxyalkylene, such as polyethylene glycol terminated at one end with acrylate or methacrylate and terminated at the other end with a methoxy group. The reaction is believed to be a Michael addition. When the compound contains primary amine groups, such as the surface primary amine groups of a PAMAM dendrimer, it is usually desirable to convert the primary amine groups to secondary amine groups before the reaction with the acrylate terminated polyoxyalkylene.
    Type: Grant
    Filed: May 31, 2005
    Date of Patent: October 7, 2008
    Assignee: Central Michigan University Board of Trustees
    Inventors: Dillip K. Mohanty, Ajit Sharma
  • Patent number: 7360423
    Abstract: Disclosed are resonant vibratory gyroscopes and fabrication methods relating thereto. The angular motion sensor comprises a resonating star gyroscope which comprises a vibratory solid or shell-type structure for rate sensing or measuring angle of rotation. The structure formed as a merged superposition of two square entities, yields in-plane degenerate flexural modes that are used to sense rotation around the axis perpendicular to the substrate. The resonating star gyroscope may be implemented using the primary flexural degenerate modes. Such an implementation has been successfully demonstrated by the authors using trench-refilled polysilicon and epitaxial polysilicon as the structural material. It is also possible to use a solid star-shaped resonator (with or without perforations) for the gyroscope. The authors also suggest the operation of the resonating star gyroscope employing the higher-order flexural modes.
    Type: Grant
    Filed: January 27, 2006
    Date of Patent: April 22, 2008
    Assignee: Georgia Tech Research Corp.
    Inventors: Farrokh Ayazi, Mohammad Faisal Zaman, Ajit Sharma, Babak Vakili Amini
  • Publication number: 20060225504
    Abstract: Disclosed are resonant vibratory gyroscopes and fabrication methods relating thereto. The angular motion sensor comprises a resonating star gyroscope which comprises a vibratory solid or shell-type structure for rate sensing or measuring angle of rotation. The structure formed as a merged superposition of two square entities, yields in-plane degenerate flexural modes that are used to sense rotation around the axis perpendicular to the substrate. The resonating star gyroscope may be implemented using the primary flexural degenerate modes. Such an implementation has been successfully demonstrated by the authors using trench-refilled polysilicon and epitaxial polysilicon as the structural material. It is also possible to use a solid star-shaped resonator (with or without perforations) for the gyroscope. The authors also suggest the operation of the resonating star gyroscope employing the higher-order flexural modes.
    Type: Application
    Filed: January 27, 2006
    Publication date: October 12, 2006
    Inventors: Farrokh Ayazi, Mohammad Zaman, Ajit Sharma, Babak Amini
  • Publication number: 20060155103
    Abstract: What is disclosed relates to polymers that resist dissolution in organic solvents, are vasodilators, and are tunable explosives. These polymers also form solvent resistant coatings and solvent resistant fibers as well as bonding materials.
    Type: Application
    Filed: February 3, 2006
    Publication date: July 13, 2006
    Inventors: Dillip Mohanty, Ajit Sharma
  • Publication number: 20050256032
    Abstract: A process for forming a conjugate of a polyoxyalkylene polymer, such as polyethylene glycol, with a compound containing an amine group(s) and/or a sulfide group(s) by reacting the compound with an acrylate terminated polyoxyalkylene, such as polyethylene glycol terminated at one end with acrylate or methacrylate and terminated at the other end With a methoxy group. The reaction is believed to be a Michael addition. When the compound contains primary amine groups, such as the surface primary amine groups of a PAMAM dendrimer, it is usually desirable to convert the primary amine groups to secondary amine groups before the reaction with the acrylate terminated polyoxyalkylene.
    Type: Application
    Filed: May 31, 2005
    Publication date: November 17, 2005
    Inventors: Dillip Mohanty, Ajit Sharma