Nagarajan Viswanathan

Person

Bangalore, IN

People

Patents Grantslast 30 patents

Information Patent Grant
Auxiliary ADC-based calibration for non-linearity correction of ADC
- Patent number 12,166,500
- Issue date Dec 10, 2024
- Texas Instruments Incorporated
- Nagarajan Viswanathan
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Analog-to-digital converter (ADC) having linearization circuit with...
- Patent number 12,074,607
- Issue date Aug 27, 2024
- Texas Instruments Incorporated
- Narasimhan Rajagopal
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Calibration scheme for a non-linear ADC
- Patent number 11,962,318
- Issue date Apr 16, 2024
- Texas Instruments Incorporated
- Himanshu Varshney
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Analog-to-digital converter (ADC) having selective comparator offse...
- Patent number 11,955,984
- Issue date Apr 9, 2024
- Texas Instruments Incorporated
- Viswanathan Nagarajan
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Calibration scheme for filling lookup table in an ADC
- Patent number 11,881,867
- Issue date Jan 23, 2024
- Texas Instruments Incorporated
- Narasimhan Rajagopal
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Auxiliary ADC-based calibration for non-linearity correction of ADC
- Patent number 11,784,660
- Issue date Oct 10, 2023
- Texas Instruments Incorporated
- Nagarajan Viswanathan
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
FDAC/2 spur estimation and correction
- Patent number 11,777,513
- Issue date Oct 3, 2023
- Texas Instruments Incorporated
- Karthikeyan Gunasekaran
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Gain and memory error estimation in a pipeline analog to digital co...
- Patent number 11,309,902
- Issue date Apr 19, 2022
- Texas Instruments Incorporated
- Srinivas Kumar Reddy Naru
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Flexible and efficient device trim support using eFuse
- Patent number 10,930,362
- Issue date Feb 23, 2021
- Texas Instruments Incorporated
- Aravind Ganesan
- G11 - INFORMATION STORAGE
Information Patent Grant
Bias removal in PRBS based channel estimation
- Patent number 10,892,835
- Issue date Jan 12, 2021
- Texas Instruments Incorporated
- Shagun Dusad
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Flexible and efficient device trim support using efuse
- Patent number 10,741,268
- Issue date Aug 11, 2020
- Texas Instruments Incorporated
- Aravind Ganesan
- G11 - INFORMATION STORAGE
Information Patent Grant
Digital filtering for analog gain/phase errors
- Patent number 10,581,406
- Issue date Mar 3, 2020
- Texas Instruments Incorporated
- Jawaharlal Tangudu
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Gain and memory error estimation in a pipeline analog to digital co...
- Patent number 10,541,700
- Issue date Jan 21, 2020
- Texas Instruments Incorporated
- Srinivas Kumar Reddy Naru
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Sample based gain error estimation for analog to digital converter
- Patent number 10,530,378
- Issue date Jan 7, 2020
- Texas Instruments Incorporated
- Srinivas Kumar Reddy Naru
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Error correcting analog-to-digital converters
- Patent number 10,419,036
- Issue date Sep 17, 2019
- Texas Instruments Incorporated
- Viswanathan Nagarajan
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Pattern based estimation of errors in ADC
- Patent number 10,320,405
- Issue date Jun 11, 2019
- Texas Instruments Incorporated
- Srinivas Kumar Reddy Naru
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Method and OTDR apparatus for optical cable defect location with re...
- Patent number 10,281,357
- Issue date May 7, 2019
- Texas Instruments Incorporated
- Nagarajan Viswanathan
- G01 - MEASURING TESTING
Information Patent Grant
Error correcting analog-to-digital converters
- Patent number 10,103,753
- Issue date Oct 16, 2018
- Texas Instruments Incorporated
- Viswanathan Nagarajan
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Bias removal in PRBS based channel estimation
- Patent number 10,075,250
- Issue date Sep 11, 2018
- Texas Instruments Incorporated
- Shagun Dusad
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Methods and apparatus to reduce non-linearity in analog to digital...
- Patent number 10,050,636
- Issue date Aug 14, 2018
- Texas Instruments Incorporated
- Jawaharlal Tangudu
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Pattern based estimation of errors in ADC
- Patent number 9,941,893
- Issue date Apr 10, 2018
- Texas Instruments Incorporated
- Srinivas Kumar Reddy Naru
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Histogram based error estimation and correction
- Patent number 9,748,966
- Issue date Aug 29, 2017
- Texas Instruments Incorporated
- Viswanathan Nagarajan
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Method and OTDR apparatus for optical cable defect location with re...
- Patent number 9,651,450
- Issue date May 16, 2017
- Texas Insturments Incorporated
- Nagarajan Viswanathan
- G01 - MEASURING TESTING
Information Patent Grant
Wideband IQ mismatch correction for direct down-conversion receiver
- Patent number 9,647,867
- Issue date May 9, 2017
- Texas Instruments Incorporated
- Karthik Khanna Subramani
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Gain and offset correction in an interpolation ADC
- Patent number 9,479,186
- Issue date Oct 25, 2016
- Texas Instruments Incorporated
- Srinivas Kumar Reddy Naru
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Optical fiber defect detection
- Patent number 9,438,335
- Issue date Sep 6, 2016
- Texas Instruments Incorporated
- Nagarajan Viswanathan
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and OTDR apparatus for optical cable defect location with re...
- Patent number 9,341,543
- Issue date May 17, 2016
- Texas Instruments Incorporated
- Nagarajan Viswanathan
- G01 - MEASURING TESTING
Information Patent Grant
Mismatch profile
- Patent number 9,184,762
- Issue date Nov 10, 2015
- Texas Instruments Incorporated
- Sthanunathan Ramakrishnan
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Transmit signal cancelation apparatus and methods
- Patent number 9,001,712
- Issue date Apr 7, 2015
- Texas Instruments Incorporated
- Nagarajan Viswanathan
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Multi-tap IQ imbalance estimation and correction circuit and method
- Patent number 8,976,914
- Issue date Mar 10, 2015
- Texas Instruments Incorporated
- Nagarajan Viswanathan
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
DITHERING TECHNIQUES FOR ANALOG-TO-DIGITAL CONVERTERS
- Publication number 20250219652
- Publication date Jul 3, 2025
- TEXAS INSTRUMENTS INCORPORATED
- Mishab I
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
AUXILIARY ADC-BASED CALIBRATION FOR NON-LINEARITY CORRECTION OF ADC
- Publication number 20250055473
- Publication date Feb 13, 2025
- TEXAS INSTRUMENTS INCORPORATED
- Nagarajan VISWANATHAN
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
METHODS AND APPARATUS TO ESTIMATE ANALOG TO DIGITAL CONVERTER (ADC)...
- Publication number 20250004049
- Publication date Jan 2, 2025
- TEXAS INSTRUMENTS INCORPORATED
- Nithin Gopinath
- G01 - MEASURING TESTING
Information Patent Application
ANALOG-TO-DIGITAL CONVERTER (ADC) HAVING LINEARIZATION CIRCUIT WITH...
- Publication number 20240372557
- Publication date Nov 7, 2024
- TEXAS INSTRUMENTS INCORPORATED
- Narasimhan RAJAGOPAL
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
ANALOG-TO-DIGITAL CONVERTER (ADC) HAVING SELECTIVE COMPARATOR OFFSE...
- Publication number 20240259029
- Publication date Aug 1, 2024
- TEXAS INSTRUMENTS INCORPORATED
- Viswanathan NAGARAJAN
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
CALIBRATION SCHEME FOR A NON-LINEAR ADC
- Publication number 20240187013
- Publication date Jun 6, 2024
- TEXAS INSTRUMENTS INCORPORATED
- Himanshu Varshney
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
AUXILIARY ADC-BASED CALIBRATION FOR NON-LINEARITY CORRECTION OF ADC
- Publication number 20230412186
- Publication date Dec 21, 2023
- TEXAS INSTRUMENTS INCORPORATED
- Nagarajan VISWANATHAN
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
ANALOG-TO-DIGITAL CONVERTER (ADC) HAVING LINEARIZATION CIRCUIT WITH...
- Publication number 20230387932
- Publication date Nov 30, 2023
- TEXAS INSTRUMENTS INCORPORATED
- Narasimhan RAJAGOPAL
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
ANALOG-TO-DIGITAL CONVERTER (ADC) HAVING SELECTIVE COMPARATOR OFFSE...
- Publication number 20230387933
- Publication date Nov 30, 2023
- TEXAS INSTRUMENTS INCORPORATED
- Viswanathan NAGARAJAN
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
AUXILIARY ADC-BASED CALIBRATION FOR NON-LINEARITY CORRECTION OF ADC
- Publication number 20230082872
- Publication date Mar 16, 2023
- TEXAS INSTRUMENTS INCORPORATED
- Nagarajan VISWANATHAN
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
CALIBRATION SCHEME FOR FILLING LOOKUP TABLE IN AN ADC
- Publication number 20220247420
- Publication date Aug 4, 2022
- TEXAS INSTRUMENTS INCORPORATED
- Narasimhan Rajagopal
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
FDAC/2 SPUR ESTIMATION AND CORRECTION
- Publication number 20220239304
- Publication date Jul 28, 2022
- TEXAS INSTRUMENTS INCORPORATED
- Karthikeyan GUNASEKARAN
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
CALIBRATION SCHEME FOR A NON-LINEAR ADC
- Publication number 20220224349
- Publication date Jul 14, 2022
- TEXAS INSTRUMENTS INCORPORATED
- Himanshu Varshney
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Flexible and Efficient Device Trim Support Using eFuse
- Publication number 20200327950
- Publication date Oct 15, 2020
- TEXAS INSTRUMENTS INCORPORATED
- Aravind GANESAN
- G11 - INFORMATION STORAGE
Information Patent Application
Flexible and Efficient Device Trim Support Using eFuse
- Publication number 20200152284
- Publication date May 14, 2020
- TEXAS INSTRUMENTS INCORPORATED
- Aravind GANESAN
- G11 - INFORMATION STORAGE
Information Patent Application
GAIN AND MEMORY ERROR ESTIMATION IN A PIPELINE ANALOG TO DIGITAL CO...
- Publication number 20200119743
- Publication date Apr 16, 2020
- TEXAS INSTRUMENTS INCORPORATED
- Srinivas Kumar Reddy NARU
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
GAIN AND MEMORY ERROR ESTIMATION IN A PIPELINE ANALOG TO DIGITAL CO...
- Publication number 20190280703
- Publication date Sep 12, 2019
- TEXAS INSTRUMENTS INCORPORATED
- Srinivas Kumar Reddy NARU
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
DIGITAL FILTERING FOR ANALOG GAIN/PHASE ERRORS
- Publication number 20190013795
- Publication date Jan 10, 2019
- TEXAS INSTRUMENTS INCORPORATED
- Jawaharlal Tangudu
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
ERROR CORRECTING ANALOG-TO-DIGITAL CONVERTERS
- Publication number 20190007071
- Publication date Jan 3, 2019
- TEXAS INSTRUMENTS INCORPORATED
- Viswanathan NAGARAJAN
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Bias Removal in PRBS Based Channel Estimation
- Publication number 20180351667
- Publication date Dec 6, 2018
- TEXAS INSTRUMENTS INCORPORATED
- Shagun DUSAD
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
BIAS REMOVAL IN PRBS BASED CHANNEL ESTIMATION
- Publication number 20180191472
- Publication date Jul 5, 2018
- TEXAS INSTRUMENTS INCORPORATED
- Shagun DUSAD
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
PATTERN BASED ESTIMATION OF ERRORS IN ADC
- Publication number 20180191362
- Publication date Jul 5, 2018
- TEXAS INSTRUMENTS INCORPORATED
- Srinivas Kumar Reddy Naru
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
METHODS AND APPARATUS TO REDUCE NON-LINEARITY IN ANALOG TO DIGITAL...
- Publication number 20170324421
- Publication date Nov 9, 2017
- TEXAS INSTRUMENTS INCORPORATED
- Jawaharlal Tangudu
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
PATTERN BASED ESTIMATION OF ERRORS IN ADC
- Publication number 20170302287
- Publication date Oct 19, 2017
- TEXAS INSTRUMENTS INCORPORATED
- Srinivas Kumar Reddy Naru
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
METHOD AND OTDR APPARATUS FOR OPTICAL CABLE DEFECT LOCATION WITH RE...
- Publication number 20170234768
- Publication date Aug 17, 2017
- TEXAS INSTRUMENTS INCORPORATED
- Nagarajan Viswanathan
- G01 - MEASURING TESTING
Information Patent Application
HISTOGRAM BASED ERROR ESTIMATION AND CORRECTION
- Publication number 20170041013
- Publication date Feb 9, 2017
- TEXAS INSTRUMENTS INCORPORATED
- Viswanathan NAGARAJAN
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
WIDEBAND IQ MISMATCH CORRECTION FOR DIRECT DOWN-CONVERSION RECEIVER
- Publication number 20160373288
- Publication date Dec 22, 2016
- TEXASINSTRUMENTSINCORPORATED
- KARTHIK KHANNA SUBRAMANI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
GAIN AND OFFSET CORRECTION IN AN INTERPOLATION ADC
- Publication number 20160315629
- Publication date Oct 27, 2016
- TEXAS INSTRUMENTS INCORPORATED
- Srinivas Kumar Reddy NARU
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
METHOD AND OTDR APPARATUS FOR OPTICAL CABLE DEFECT LOCATION WITH RE...
- Publication number 20160258838
- Publication date Sep 8, 2016
- TEXAS INSTRUMENTS INCORPORATED
- Nagarajan Viswanathan
- G01 - MEASURING TESTING
Information Patent Application
METHOD AND OTDR APPARATUS FOR OPTICAL CABLE DEFECT LOCATION WITH RE...
- Publication number 20160109327
- Publication date Apr 21, 2016
- TEXAS INSTRUMENTS INCORPORATED
- Nagarajan Viswanathan
- G01 - MEASURING TESTING

Nagarajan Viswanathan

Person

Patents Grantslast 30 patents

Auxiliary ADC-based calibration for non-linearity correction of ADC

Analog-to-digital converter (ADC) having linearization circuit with...

Calibration scheme for a non-linear ADC

Analog-to-digital converter (ADC) having selective comparator offse...

Calibration scheme for filling lookup table in an ADC

Auxiliary ADC-based calibration for non-linearity correction of ADC

FDAC/2 spur estimation and correction

Gain and memory error estimation in a pipeline analog to digital co...

Flexible and efficient device trim support using eFuse

Bias removal in PRBS based channel estimation

Flexible and efficient device trim support using efuse

Digital filtering for analog gain/phase errors

Gain and memory error estimation in a pipeline analog to digital co...

Sample based gain error estimation for analog to digital converter

Error correcting analog-to-digital converters

Pattern based estimation of errors in ADC

Method and OTDR apparatus for optical cable defect location with re...

Error correcting analog-to-digital converters

Bias removal in PRBS based channel estimation

Methods and apparatus to reduce non-linearity in analog to digital...

Pattern based estimation of errors in ADC

Histogram based error estimation and correction

Method and OTDR apparatus for optical cable defect location with re...

Wideband IQ mismatch correction for direct down-conversion receiver

Gain and offset correction in an interpolation ADC

Optical fiber defect detection

Method and OTDR apparatus for optical cable defect location with re...

Mismatch profile

Transmit signal cancelation apparatus and methods

Multi-tap IQ imbalance estimation and correction circuit and method

Patents Applicationslast 30 patents

DITHERING TECHNIQUES FOR ANALOG-TO-DIGITAL CONVERTERS

AUXILIARY ADC-BASED CALIBRATION FOR NON-LINEARITY CORRECTION OF ADC

METHODS AND APPARATUS TO ESTIMATE ANALOG TO DIGITAL CONVERTER (ADC)...

ANALOG-TO-DIGITAL CONVERTER (ADC) HAVING LINEARIZATION CIRCUIT WITH...

ANALOG-TO-DIGITAL CONVERTER (ADC) HAVING SELECTIVE COMPARATOR OFFSE...

CALIBRATION SCHEME FOR A NON-LINEAR ADC

AUXILIARY ADC-BASED CALIBRATION FOR NON-LINEARITY CORRECTION OF ADC

ANALOG-TO-DIGITAL CONVERTER (ADC) HAVING LINEARIZATION CIRCUIT WITH...

ANALOG-TO-DIGITAL CONVERTER (ADC) HAVING SELECTIVE COMPARATOR OFFSE...

AUXILIARY ADC-BASED CALIBRATION FOR NON-LINEARITY CORRECTION OF ADC

CALIBRATION SCHEME FOR FILLING LOOKUP TABLE IN AN ADC

FDAC/2 SPUR ESTIMATION AND CORRECTION

CALIBRATION SCHEME FOR A NON-LINEAR ADC

Flexible and Efficient Device Trim Support Using eFuse

Flexible and Efficient Device Trim Support Using eFuse

GAIN AND MEMORY ERROR ESTIMATION IN A PIPELINE ANALOG TO DIGITAL CO...

GAIN AND MEMORY ERROR ESTIMATION IN A PIPELINE ANALOG TO DIGITAL CO...

DIGITAL FILTERING FOR ANALOG GAIN/PHASE ERRORS

ERROR CORRECTING ANALOG-TO-DIGITAL CONVERTERS

Bias Removal in PRBS Based Channel Estimation

BIAS REMOVAL IN PRBS BASED CHANNEL ESTIMATION

PATTERN BASED ESTIMATION OF ERRORS IN ADC

METHODS AND APPARATUS TO REDUCE NON-LINEARITY IN ANALOG TO DIGITAL...

PATTERN BASED ESTIMATION OF ERRORS IN ADC

METHOD AND OTDR APPARATUS FOR OPTICAL CABLE DEFECT LOCATION WITH RE...

HISTOGRAM BASED ERROR ESTIMATION AND CORRECTION

WIDEBAND IQ MISMATCH CORRECTION FOR DIRECT DOWN-CONVERSION RECEIVER

GAIN AND OFFSET CORRECTION IN AN INTERPOLATION ADC

METHOD AND OTDR APPARATUS FOR OPTICAL CABLE DEFECT LOCATION WITH RE...

METHOD AND OTDR APPARATUS FOR OPTICAL CABLE DEFECT LOCATION WITH RE...