Inventor

RAMAKRISHNAN STHANUNATHAN

IN38 patents

⚠️ This page may combine multiple inventors who share the name “RAMAKRISHNAN STHANUNATHAN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

RAMAKRISHNAN STHANUNATHAN

TEXAS INSTRUMENTS INC

Time-interleaved analog-to-digital converter

Interleaved analog to digital converter with compensation for parameter mismatch among individual converters

Selecting one of multiple antennas to receive signals in a wireless packet network

Kalman filter iteratively performing time/measurement update of user/relative floor locations

Measurement error covariance in GNSS receiver circuitry, pseudoranges, reference position

Eliminating narrowband interference in a receiver

Mismatch profile

Mismatch corrector

Channel estimation method and system for IQ imbalance and local oscillator leakage correction

Analog-to-digital convertor pseudo periodic IL estimation

Method and system for location estimation

Frequency-domain IQ mismatch estimation

Spur estimating receiver system

FDAC/2 spur estimation and correction

IQ mismatch correction for zero-IF/low-IF TX/RX

Method for incorporating invisible access points for RSSI-based indoor positioning applications

Power efficiency in a medical implant based system

Digital radio processor architecture with reduced DCO modulation range requirement

Versatile system for interference tolerant packet detection in wireless communication systems

Methods and apparatus for efficient linear combiner

Band specific interleaving mismatch compensation in RF ADCs

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

Methods and apparatus to increase an integrity of mismatch corrections of an interleaved analog to digital converter

Continuous tracking of mismatch correction in both analog and digital domains in an interleaved ADC

Close-in tones

IQ mismatch correction module

Enhanced IQ mismatch correction function generator

Interleaved ADC with estimation of DSA-setting-based IL mismatch

RAMAKRISHNAN STHANUNATHAN

Removing and de-weighting outlier measurements from satellite and previous information

System and method for hybrid positioning using Wi-Fi and GNSS blending

Dynamic low power radio modes

Pulse shaping in a communication system

Power optmization in a medical implant based system

Polling mechanism in a medical implant based system

WATERS DERIC W

System and method for determining a position of a mobile wireless device by accessing access points alamanacs database

System and method for access point based positioning

PANDE TARKESH

Static heading detection in personal navigation device

RAO SANDEEP

Method and apparatus to improve sensitivity of decoding time of a global navigation satellite system receiver