Patents by Inventor Pawan Tiwari

Pawan Tiwari 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: 10312928
    Abstract: Aspects of a method and apparatus for converting an analog input value to a digital output code are provided. One embodiment of the apparatus includes a digital-to-analog converter, a comparator, and control logic circuitry. The digital-to-analog converter is configured to generate an analog reference value based on a received digital reference value. The comparator is configured to compare an analog input value to the analog reference value after expiration of an allotted settling time for the digital-to-analog converter and generate a comparison result indicative a relationship between the analog input value and the analog reference value. The control logic circuitry is configured to select the allotted settling time for the digital-to-analog converter based on a bit position of a digital output code to be determined, and update the bit position of the digital output code based on the comparison result.
    Type: Grant
    Filed: May 18, 2018
    Date of Patent: June 4, 2019
    Assignee: MAXLINEAR, INC.
    Inventors: Kaveh Moazzami, Pawan Tiwari, Gaurav Chandra
  • Publication number: 20180278408
    Abstract: A radio frequency (RF) receiver may comprise a first sampling module that is operable to sample in a first level at a particular main sampling rate; a plurality of second-level sampling modules, wherein each of the plurality of second-level sampling modules is operable to sample in a second level, an output of the first level, at a second sampling rate that is reduced compared to the main sampling rate; and a plurality of third-level modules, each comprising a plurality of third-stage sampling sub-modules that are operable to sample at a third sampling rate that is reduced compared to the second sampling rate, and a plurality of corresponding analog-to-digital conversion (ADC) sub-modules.
    Type: Application
    Filed: May 29, 2018
    Publication date: September 27, 2018
    Inventors: Jianyu Zhu, Sheng-Yu Peng, Rodney Chandler, Pawan Tiwari, Rahul Bhatia, Eric Fogleman
  • Publication number: 20180269891
    Abstract: Aspects of a method and apparatus for converting an analog input value to a digital output code are provided. One embodiment of the apparatus includes a digital-to-analog converter, a comparator, and control logic circuitry. The digital-to-analog converter is configured to generate an analog reference value based on a received digital reference value. The comparator is configured to compare an analog input value to the analog reference value after expiration of an allotted settling time for the digital-to-analog converter and generate a comparison result indicative a relationship between the analog input value and the analog reference value. The control logic circuitry is configured to select the allotted settling time for the digital-to-analog converter based on a bit position of a digital output code to be determined, and update the bit position of the digital output code based on the comparison result.
    Type: Application
    Filed: May 18, 2018
    Publication date: September 20, 2018
    Inventors: Kaveh Moazzami, Pawan Tiwari, Gaurav Chandra
  • Patent number: 10003350
    Abstract: Aspects of a method and apparatus for converting an analog input value to a digital output code are provided. One embodiment of the apparatus includes a digital-to-analog converter, a comparator, and control logic circuitry. The digital-to-analog converter is configured to generate an analog reference value based on a received digital reference value. The comparator is configured to compare an analog input value to the analog reference value after expiration of an allotted settling time for the digital-to-analog converter and generate a comparison result indicative a relationship between the analog input value and the analog reference value. The control logic circuitry is configured to select the allotted settling time for the digital-to-analog converter based on a bit position of a digital output code to be determined, and update the bit position of the digital output code based on the comparison result.
    Type: Grant
    Filed: June 8, 2017
    Date of Patent: June 19, 2018
    Assignee: MAXLINEAR, INC.
    Inventors: Kaveh Moazzami, Pawan Tiwari, Gaurav Chandra
  • Patent number: 9985777
    Abstract: A radio frequency (RF) receiver may comprise a first sampling module that is operable to sample in a first level at a particular main sampling rate; a plurality of second-level sampling modules, wherein each of the plurality of second-level sampling modules is operable to sample in a second level, an output of the first level, at a second sampling rate that is reduced compared to the main sampling rate; and a plurality of third-level modules, each comprising a plurality of third-stage sampling sub-modules that are operable to sample at a third sampling rate that is reduced compared to the second sampling rate, and a plurality of corresponding analog-to-digital conversion (ADC) sub-modules.
    Type: Grant
    Filed: January 30, 2017
    Date of Patent: May 29, 2018
    Assignee: MAXLINEAR, INC.
    Inventors: Jianyu Zhu, Sheng-Yu Peng, Rodney Chandler, Pawan Tiwari, Rahul Bhatia, Eric Fogleman
  • Publication number: 20170373639
    Abstract: Methods and systems for a multi-core multi-mode voltage-controlled-oscillator (VCO) may comprise generating a plurality of oscillating signals utilizing a plurality of voltage controlled oscillators (VCOs) arranged symmetrically on an integrated circuit, where interconnects for the VCOs may be arranged in quiet zones at locations equidistant from each pair of VCOs. An interconnection ring may be centered within the arranged VCOs that comprises at least two conductive lines that couple to output terminals each VCO. The VCOs may receive control signals from interconnects coupled to at least one conductive line in the interconnection ring. The VCOs may receive control signals from a conductive line in said interconnection ring. A positive terminal of a first VCO of a pair of adjacent VCOs of the plurality of VCOs may be coupled to a same conductive line of the interconnection ring as a negative terminal of a second of the pair of adjacent VCOs.
    Type: Application
    Filed: September 8, 2017
    Publication date: December 28, 2017
    Inventors: Abhishek Jajoo, Pawan Tiwari, Vamsi Paidi
  • Publication number: 20170279459
    Abstract: Aspects of a method and apparatus for converting an analog input value to a digital output code are provided. One embodiment of the apparatus includes a digital-to-analog converter, a comparator, and control logic circuitry. The digital-to-analog converter is configured to generate an analog reference value based on a received digital reference value. The comparator is configured to compare an analog input value to the analog reference value after expiration of an allotted settling time for the digital-to-analog converter and generate a comparison result indicative a relationship between the analog input value and the analog reference value. The control logic circuitry is configured to select the allotted settling time for the digital-to-analog converter based on a bit position of a digital output code to be determined, and update the bit position of the digital output code based on the comparison result.
    Type: Application
    Filed: June 8, 2017
    Publication date: September 28, 2017
    Inventors: Kaveh Moazzami, Pawan Tiwari, Gaurav Chandra
  • Publication number: 20170272234
    Abstract: A radio frequency (RF) receiver may comprise a first sampling module that is operable to sample in a first level at a particular main sampling rate; a plurality of second-level sampling modules, wherein each of the plurality of second-level sampling modules is operable to sample in a second level, an output of the first level, at a second sampling rate that is reduced compared to the main sampling rate; and a plurality of third-level modules, each comprising a plurality of third-stage sampling sub-modules that are operable to sample at a third sampling rate that is reduced compared to the second sampling rate, and a plurality of corresponding analog-to-digital conversion (ADC) sub-modules.
    Type: Application
    Filed: January 30, 2017
    Publication date: September 21, 2017
    Inventors: Jianyu Zhu, Sheng-Yu Peng, Rodney Chandler, Pawan Tiwari, Rahul Bhatia, Eric Fogleman
  • Patent number: 9762181
    Abstract: Methods and systems for a multi-core multi-mode voltage-controlled-oscillator (VCO) may comprise generating a plurality of oscillating signals utilizing a plurality of voltage controlled oscillators (VCOs) arranged symmetrically on an integrated circuit, where interconnects for the VCOs may be arranged in quiet zones at locations equidistant from each pair of the plurality of VCOs. An interconnection ring may be centered within the arranged VCOs that comprises at least two conductive lines that couple to output terminals of each of said plurality of VCOs. The plurality of VCOs may receive control signals from interconnects coupled to at least one conductive line in the interconnection ring. The plurality of VCOs may receive control signals from a conductive line in said interconnection ring. A positive terminal of a first VCO of a pair of adjacent VCOs of the plurality of VCOs may be coupled to a same conductive line of the interconnection ring as a negative terminal of a second of the pair of adjacent VCOs.
    Type: Grant
    Filed: July 30, 2016
    Date of Patent: September 12, 2017
    Assignee: Maxlinear, Inc.
    Inventors: Abhishek Jajoo, Pawan Tiwari, Vamsi Paidi
  • Patent number: 9698811
    Abstract: Aspects of a method and apparatus for converting an analog input value to a digital output code are provided. One embodiment of the apparatus includes a digital-to-analog converter, a comparator, and control logic circuitry. The digital-to-analog converter is configured to generate an analog reference value based on a received digital reference value. The comparator is configured to compare an analog input value to the analog reference value after expiration of an allotted settling time for the digital-to-analog converter and generate a comparison result indicative a relationship between the analog input value and the analog reference value. The control logic circuitry is configured to select the allotted settling time for the digital-to-analog converter based on a bit position of a digital output code to be determined, and update the bit position of the digital output code based on the comparison result.
    Type: Grant
    Filed: May 9, 2016
    Date of Patent: July 4, 2017
    Assignee: MAXLINEAR, INC.
    Inventors: Kaveh Moazzami, Pawan Tiwari, Gaurav Chandra
  • Publication number: 20170033738
    Abstract: Methods and systems for a multi-core multi-mode voltage-controlled-oscillator (VCO) may comprise generating a plurality of oscillating signals utilizing a plurality of voltage controlled oscillators (VCOs) arranged symmetrically on an integrated circuit, where interconnects for the VCOs may be arranged in quiet zones at locations equidistant from each pair of the plurality of VCOs. An interconnection ring may be centered within the arranged VCOs that comprises at least two conductive lines that couple to output terminals of each of said plurality of VCOs. The plurality of VCOs may receive control signals from interconnects coupled to at least one conductive line in the interconnection ring. The plurality of VCOs may receive control signals from a conductive line in said interconnection ring. A positive terminal of a first VCO of a pair of adjacent VCOs of the plurality of VCOs may be coupled to a same conductive line of the interconnection ring as a negative terminal of a second of the pair of adjacent VCOs.
    Type: Application
    Filed: July 30, 2016
    Publication date: February 2, 2017
    Inventors: Abhishek Jajoo, Pawan Tiwari, Vamsi Paidi
  • Patent number: 9559835
    Abstract: A signal receiver may comprise circuitry for applying multi-level sampling to an input signal, using a plurality of sampling rates that comprises at least two different sampling rates, and circuitry for processing one or more outputs of the multi-level sampling. The processing may comprises sampling at a sampling rate that is different than each of the plurality of sampling rates used during the multi-level sampling and applying analog-to-digital conversion. At least one of the sampling rates used during the multi-level sampling and/or the sampling rate used during the processing may be set based on configuring of one or more clock signals used during the multi-level sampling and/or during the processing. At least one of the one or more clock signals may be configured based on reduction of frequency of a corresponding base clock signal.
    Type: Grant
    Filed: December 8, 2014
    Date of Patent: January 31, 2017
    Assignee: MAXLINEAR, INC.
    Inventors: Jianyu Zhu, Sheng-Yu Peng, Rodney Chandler, Pawan Tiwari, Rahul Bhatia, Eric Fogleman
  • Publication number: 20160329908
    Abstract: Aspects of a method and apparatus for converting an analog input value to a digital output code are provided. One embodiment of the apparatus includes a digital-to-analog converter, a comparator, and control logic circuitry. The digital-to-analog converter is configured to generate an analog reference value based on a received digital reference value. The comparator is configured to compare an analog input value to the analog reference value after expiration of an allotted settling time for the digital-to-analog converter and generate a comparison result indicative a relationship between the analog input value and the analog reference value. The control logic circuitry is configured to select the allotted settling time for the digital-to-analog converter based on a bit position of a digital output code to be determined, and update the bit position of the digital output code based on the comparison result.
    Type: Application
    Filed: May 9, 2016
    Publication date: November 10, 2016
    Inventors: Kaveh Moazzami, Pawan Tiwari, Gaurav Chandra
  • Patent number: 9362941
    Abstract: Aspects of a method and apparatus for converting an analog input value to a digital output code are provided. One embodiment of the apparatus includes a digital-to-analog converter, a comparator, and control logic circuitry. The digital-to-analog converter is configured to generate an analog reference value based on a received digital reference value. The comparator is configured to compare an analog input value to the analog reference value after expiration of an allotted settling time for the digital-to-analog converter and generate a comparison result indicative a relationship between the analog input value and the analog reference value. The control logic circuitry is configured to select the allotted settling time for the digital-to-analog converter based on a bit position of a digital output code to be determined, and update the bit position of the digital output code based on the comparison result.
    Type: Grant
    Filed: June 12, 2015
    Date of Patent: June 7, 2016
    Assignee: MAXLINEAR, INC.
    Inventors: Kaveh Moazzami, Pawan Tiwari, Gaurav Chandra
  • Publication number: 20150280731
    Abstract: Aspects of a method and apparatus for converting an analog input value to a digital output code are provided. One embodiment of the apparatus includes a digital-to-analog converter, a comparator, and control logic circuitry. The digital-to-analog converter is configured to generate an analog reference value based on a received digital reference value. The comparator is configured to compare an analog input value to the analog reference value after expiration of an allotted settling time for the digital-to-analog converter and generate a comparison result indicative a relationship between the analog input value and the analog reference value. The control logic circuitry is configured to select the allotted settling time for the digital-to-analog converter based on a bit position of a digital output code to be determined, and update the bit position of the digital output code based on the comparison result.
    Type: Application
    Filed: June 12, 2015
    Publication date: October 1, 2015
    Inventors: Kaveh Moazzami, Pawan Tiwari, Gaurav Chandra
  • Patent number: 9083376
    Abstract: Aspects of a method and apparatus for converting an analog input value to a digital output code are provided. One embodiment of the apparatus includes a digital-to-analog converter, a comparator, and control logic circuitry. The digital-to-analog converter is configured to generate an analog reference value based on a received digital reference value. The comparator is configured to compare an analog input value to the analog reference value after expiration of an allotted settling time for the digital-to-analog converter and generate a comparison result indicative a relationship between the analog input value and the analog reference value. The control logic circuitry is configured to select the allotted settling time for the digital-to-analog converter based on a bit position of a digital output code to be determined, and update the bit position of the digital output code based on the comparison result.
    Type: Grant
    Filed: April 25, 2014
    Date of Patent: July 14, 2015
    Assignee: MAXLINEAR, INC.
    Inventors: Kaveh Moazzami, Pawan Tiwari, Gaurav Chandra
  • Publication number: 20150092899
    Abstract: A signal receiver may comprise circuitry for applying multi-level sampling to an input signal, using a plurality of sampling rates that comprises at least two different sampling rates, and circuitry for processing one or more outputs of the multi-level sampling. The processing may comprises sampling at a sampling rate that is different than each of the plurality of sampling rates used during the multi-level sampling and applying analog-to-digital conversion. At least one of the sampling rates used during the multi-level sampling and/or the sampling rate used during the processing may be set based on configuring of one or more clock signals used during the multi-level sampling and/or during the processing. At least one of the one or more clock signals may be configured based on reduction of frequency of a corresponding base clock signal.
    Type: Application
    Filed: December 8, 2014
    Publication date: April 2, 2015
    Inventors: Jianyu Zhu, Sheng-Yu Peng, Rodney Chandler, Pawan Tiwari, Rahul Bhatia, Eric Fogleman
  • Patent number: 8934590
    Abstract: A signal receiver may comprise a first sampling circuitry that is operable to sample in a first level at a particular main sampling rate; a second sampling circuitry that is operable to sample in a second level, an output of the first sampling circuitry, at a second sampling rate that is reduced compared to the main sampling rate; a third sampling circuitry that is operable to sample in a third level, one or more outputs of the second sampling circuitry, at a third sampling rate that is reduced compared to the second sampling rate; and an analog-to-digital conversion (ADC) circuitry for applying analog-to-digital conversion to one or more outputs of the third sampling circuitry.
    Type: Grant
    Filed: December 16, 2013
    Date of Patent: January 13, 2015
    Assignee: MaxLinear, Inc.
    Inventors: Jianyu Zhu, Sheng-Yu Peng, Rodney Chandler, Pawan Tiwari, Rahul Bhatia, Eric Fogleman
  • Publication number: 20140320328
    Abstract: Aspects of a method and apparatus for converting an analog input value to a digital output code are provided. One embodiment of the apparatus includes a digital-to-analog converter, a comparator, and control logic circuitry. The digital-to-analog converter is configured to generate an analog reference value based on a received digital reference value. The comparator is configured to compare an analog input value to the analog reference value after expiration of an allotted settling time for the digital-to-analog converter and generate a comparison result indicative a relationship between the analog input value and the analog reference value. The control logic circuitry is configured to select the allotted settling time for the digital-to-analog converter based on a bit position of a digital output code to be determined, and update the bit position of the digital output code based on the comparison result.
    Type: Application
    Filed: April 25, 2014
    Publication date: October 30, 2014
    Applicant: MaxLinear, Inc.
    Inventors: Kaveh Moazzami, Pawan Tiwari, Gaurav Chandra
  • Publication number: 20140105339
    Abstract: A signal receiver may comprise a first sampling circuitry that is operable to sample in a first level at a particular main sampling rate; a second sampling circuitry that is operable to sample in a second level, an output of the first sampling circuitry, at a second sampling rate that is reduced compared to the main sampling rate; a third sampling circuitry that is operable to sample in a third level, one or more outputs of the second sampling circuitry, at a third sampling rate that is reduced compared to the second sampling rate; and an analog-to-digital conversion (ADC) circuitry for applying analog-to-digital conversion to one or more outputs of the third sampling circuitry.
    Type: Application
    Filed: December 16, 2013
    Publication date: April 17, 2014
    Applicant: MaxLinear, Inc.
    Inventors: Jianyu Zhu, Sheng-Yu Peng, Rodney Chandler, Pawan Tiwari, Rahul Bhatia, Eric Fogleman