Patents by Inventor Babak Vakili Amini

Babak Vakili Amini 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: 10175706
    Abstract: Disclosed is a low dropout (LDO) voltage regulator that includes a differential amplifier configured to amplify a differential between a reference voltage and a regulated output voltage, a pass transistor coupled to the differential amplifier and driven by an output of the differential amplifier, a compensation capacitor coupled to an output node of the differential amplifier, and an auxiliary amplifier, wherein an output node of the auxiliary amplifier is coupled to the compensation capacitor, and wherein an input node of the auxiliary amplifier is coupled to the pass transistor.
    Type: Grant
    Filed: June 17, 2016
    Date of Patent: January 8, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Soheil Golara, Babak Vakili-Amini
  • Publication number: 20170364110
    Abstract: Disclosed is a low dropout (LDO) voltage regulator that includes a differential amplifier configured to amplify a differential between a reference voltage and a regulated output voltage, a pass transistor coupled to the differential amplifier and driven by an output of the differential amplifier, a compensation capacitor coupled to an output node of the differential amplifier, and an auxiliary amplifier, wherein an output node of the auxiliary amplifier is coupled to the compensation capacitor, and wherein an input node of the auxiliary amplifier is coupled to the pass transistor.
    Type: Application
    Filed: June 17, 2016
    Publication date: December 21, 2017
    Inventors: Soheil GOLARA, Babak VAKILI-AMINI
  • Publication number: 20160006422
    Abstract: A dynamic latch is disclosed that may reduce power consumption in frequency dividers while widening their frequency operation ranges. The dynamic latch includes a sense component to detect an input voltage in response to a first state of a mode select signal, and to generate an output voltage based, at least in part, on the input voltage; a hold component to retain the output voltage in response to a second state of the mode select signal; and a first transistor, coupled between the sense component and ground potential, including a gate responsive to the mode select signal.
    Type: Application
    Filed: July 2, 2014
    Publication date: January 7, 2016
    Inventors: Thinh Cat Nguyen, Jeongsik Yang, Shen Wang, Ara Bicakci, Anup Savla, Babak Vakili-Amini
  • Patent number: 9059714
    Abstract: Certain aspects of the present disclosure provide apparatus for producing an output signal having a duty cycle of 50% and a frequency that is one third that of an input signal. One example frequency dividing circuit for producing such an output signal generally includes first and second flip-flops; first, second, and third logic circuits, each configured to function equivalently to a logic OR gate; and an internal frequency dividing circuit configured to generate an output waveform having a frequency that is one half that of an input waveform.
    Type: Grant
    Filed: October 28, 2013
    Date of Patent: June 16, 2015
    Assignee: QUALCOMM Incorporated
    Inventors: Ali Sajjadi, Babak Vakili-Amini
  • Publication number: 20150117564
    Abstract: Certain aspects of the present disclosure provide apparatus for producing an output signal having a duty cycle of 50% and a frequency that is one third that of an input signal. One example frequency dividing circuit for producing such an output signal generally includes first and second flip-flops; first, second, and third logic circuits, each configured to function equivalently to a logic OR gate; and an internal frequency dividing circuit configured to generate an output waveform having a frequency that is one half that of an input waveform.
    Type: Application
    Filed: October 28, 2013
    Publication date: April 30, 2015
    Applicant: QUALCOMM Incorporated
    Inventors: Ali SAJJADI, Babak VAKILI-AMINI
  • Patent number: 7757393
    Abstract: Disclosed are moveable microstructures comprising in-plane capacitive microaccelerometers, with submicro-gravity resolution (<200 ng/?Hz) and very high sensitivity (>17 pF/g). The microstructures are fabricated in thick (>100 ?m) silicon-on-insulator (SOI) substrates or silicon substrates using a two-mask fully-dry release process that provides large seismic mass (>10 milli-g), reduced capacitive gaps, and reduced in-plane stiffness. Fabricated devices may be interfaced to a high resolution switched-capacitor CMOS IC that eliminates the need for area-consuming reference capacitors. The measured sensitivity is 83 mV/mg (17 pF/g) and the output noise floor is ?91 dBm/Hz at 10 Hz (corresponding to an acceleration resolution of 170 ng/?Hz). The IC consumes 6 mW power and measures 0.65 mm2 core area.
    Type: Grant
    Filed: September 28, 2007
    Date of Patent: July 20, 2010
    Assignee: Georgia Tech Research Corporation
    Inventors: Farrokh Ayazi, Babak Vakili Amini, Reza Abdolvand
  • 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
  • Patent number: 7337671
    Abstract: Disclosed are moveable microstructures comprising in-plane capacitive microaccelerometers, with submicro-gravity resolution (<200 ng/?Hz) and very high sensitivity (>17 pF/g). The microstructures are fabricated in thick (>100 ?m) silicon-on-insulator (SOI) substrates or silicon substrates using a two-mask fully-dry release process that provides large seismic mass (>10 milli-g), reduced capacitive gaps, and reduced in-plane stiffness. Fabricated devices may be interfaced to a high resolution switched-capacitor CMOS IC that eliminates the need for area-consuming reference capacitors. The measured sensitivity is 83 mV/mg (17 pF/g) and the output noise floor is ?91 dBm/Hz at 10 Hz (corresponding to an acceleration resolution of 170 ng/?Hz). The IC consumes 6 mW power and measures 0.65 mm2 core area.
    Type: Grant
    Filed: June 1, 2006
    Date of Patent: March 4, 2008
    Assignee: Georgia Tech Research Corp.
    Inventors: Farrokh Ayazi, Babak Vakili Amini, Reza Abdolvand