Patents by Inventor Hasnain Mohammedi Lakdawala

Hasnain Mohammedi Lakdawala 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).

  • Input switch leakage compensation
    Patent number: 9473085
    Abstract: An apparatus including: a first switch configured to provide a feed-forward path at an input of a first amplifier of a plurality of amplifiers coupled together at a single port, the feed-forward path configured to substantially reduce a leakage current into an input of a second amplifier of the plurality of amplifiers.
    Type: Grant
    Filed: September 19, 2014
    Date of Patent: October 18, 2016
    Assignee: QUALCOMM Incorporated
    Inventors: Hasnain Mohammedi Lakdawala, Ojas Mahendra Choksi, Bin Fan
  • Sawless architecture for receivers
    Patent number: 9450626
    Abstract: An apparatus including: at least one differential amplifier configured to amplify a radio frequency signal; a mixer configured to mix the radio frequency signal from the at least one differential amplifier with a local oscillator signal; and a low-pass filter coupled to the mixer, the low-pass filter includes a capacitor and at least one variable resistor configured to tune the low-pass filter.
    Type: Grant
    Filed: March 10, 2015
    Date of Patent: September 20, 2016
    Assignee: QUALCOMM Incorporated
    Inventors: Ojas Mahendra Choksi, Bin Fan, Bassel Hanafi, Hasnain Mohammedi Lakdawala, Prashanth Akula, Faramarz Sabouri
  • Phase shifting mixer
    Patent number: 9431961
    Abstract: Performing quadrature combining and adjusting including: a plurality of mixing circuits configured to generate a plurality of frequency converted signals; at least one mixing circuit of the plurality of mixing circuits is configured with a plurality of paths, each path representing one linearity mode; and a plurality of combining circuits configured to combine the plurality of frequency converted signals to generate a differential baseband output signal.
    Type: Grant
    Filed: December 18, 2014
    Date of Patent: August 30, 2016
    Assignee: QUALCOMM Incorporated
    Inventors: Hasnain Mohammedi Lakdawala, Bin Fan, Ojas Mahendra Choksi
  • On-chip linearity calibration
    Patent number: 9379753
    Abstract: An apparatus including: at least one receiver having injection points and having at least an amplifier and a transformer; and a plurality of isolation switches coupled to injection points of the at least one receiver, the plurality of isolation switches configured to route a calibration signal generated by a transmitter to one of the injection points.
    Type: Grant
    Filed: October 6, 2014
    Date of Patent: June 28, 2016
    Assignee: QUALCOMM INCORPORATED
    Inventors: Janakiram Ganesh Sankaranarayanan, Ojas Mahendra Choksi, Hasnain Mohammedi Lakdawala, Wei Zhuo, Faramarz Sabouri
  • SAWLESS ARCHITECTURE FOR RECEIVERS
    Publication number: 20160142085
    Abstract: An apparatus including: at least one differential amplifier configured to amplify a radio frequency signal; a mixer configured to mix the radio frequency signal from the at least one differential amplifier with a local oscillator signal; and a low-pass filter coupled to the mixer, the low-pass filter includes a capacitor and at least one variable resistor configured to tune the low-pass filter.
    Type: Application
    Filed: March 10, 2015
    Publication date: May 19, 2016
    Inventors: Ojas Mahendra Choksi, Bin Fan, Bassel Hanafi, Hasnain Mohammedi Lakdawala, Prashanth Akula, Faramarz Sabouri
  • PHASE SHIFTING MIXER
    Publication number: 20160126894
    Abstract: Performing quadrature combining and adjusting including: a plurality of mixing circuits configured to generate a plurality of frequency converted signals; at least one mixing circuit of the plurality of mixing circuits is configured with a plurality of paths, each path representing one linearity mode; and a plurality of combining circuits configured to combine the plurality of frequency converted signals to generate a differential baseband output signal.
    Type: Application
    Filed: December 18, 2014
    Publication date: May 5, 2016
    Inventors: Hasnain Mohammedi Lakdawala, Bin Fan, Ojas Mahendra Choksi
  • ON-CHIP LINEARITY CALIBRATION
    Publication number: 20160080018
    Abstract: An apparatus including: at least one receiver having injection points and having at least an amplifier and a transformer; and a plurality of isolation switches coupled to injection points of the at least one receiver, the plurality of isolation switches configured to route a calibration signal generated by a transmitter to one of the injection points.
    Type: Application
    Filed: October 6, 2014
    Publication date: March 17, 2016
    Inventors: Janakiram Ganesh Sankaranarayanan, Ojas Mahendra Choksi, Hasnain Mohammedi Lakdawala, Wei Zhuo, Faramarz Sabouri
  • INPUT SWITCH LEAKAGE COMPENSATION
    Publication number: 20160072441
    Abstract: An apparatus including: a first switch configured to provide a feed-forward path at an input of a first amplifier of a plurality of amplifiers coupled together at a single port, the feed-forward path configured to substantially reduce a leakage current into an input of a second amplifier of the plurality of amplifiers.
    Type: Application
    Filed: September 19, 2014
    Publication date: March 10, 2016
    Inventors: Hasnain Mohammedi Lakdawala, Ojas Mahendra Choksi, Bin Fan