P

Inventor

SUNDARESAN KARTHIKEYAN

US77 patents
⚠️ This page may combine multiple inventors who share the name “SUNDARESAN KARTHIKEYAN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

NEC LAB AMERICA INC

37 patents
US9125047B2Sep 1, 2015

Cloud-based radio access network for small cells

NEC LAB AMERICA INC37 citations94
US9936414B2Apr 3, 2018

Enabling long-term-evolution/wifi coexistence

NEC LAB AMERICA INC22 citations92
US10292054B2May 14, 2019

Enabling technologies for LTE on unlicensed spectrum

NEC LAB AMERICA INC18 citations86
US10936927B2Mar 2, 2021

Tagging objects in indoor spaces using ambient, distributed backscatter

NEC LAB AMERICA INC8 citations83
US10122547B2Nov 6, 2018

Enabling high-bandwidth, responsive mobile applications in LTE networks

NEC LAB AMERICA INC12 citations83
US9537587B2Jan 3, 2017

Efficient large-scale multiple input multiple output communications

NEC LAB AMERICA INC10 citations83
US9413474B2Aug 9, 2016

Efficient large-scale multiple input multiple output communications

NEC LAB AMERICA INC11 citations83
US8380133B2Feb 19, 2013

Beamforming methods and systems employing measured power at a receiver to perform channel estimation

NEC LAB AMERICA INC7 citations82
US12339366B2Jun 24, 2025

LiDAR-driven mmWave beam management

NEC LAB AMERICA INC3 citations73
US10852415B2Dec 1, 2020

Backscatter-aided navigation system

NEC LAB AMERICA INC2 citations73
US10852414B2Dec 1, 2020

In-home inventory and location system

NEC LAB AMERICA INC2 citations73
US10852416B2Dec 1, 2020

In-store interaction and location system for interfacing users with products

NEC LAB AMERICA INC3 citations73
US10852413B2Dec 1, 2020

Tagging objects in indoor spaces using ambient, distributed backscatter

NEC LAB AMERICA INC2 citations73
US9723566B2Aug 1, 2017

Interference cancellation

NEC LAB AMERICA INC2 citations73
US11620462B2Apr 4, 2023

Reading passive wireless tags using commodity devices

NEC LAB AMERICA INC2 citations72
US10470243B2Nov 5, 2019

Implementing wireless communication networks using unmanned aerial vehicles

NEC LAB AMERICA INC4 citations72
US10405373B2Sep 3, 2019

Distributed core architecture for implementing wireless communication networks

NEC LAB AMERICA INC2 citations72
US9521560B2Dec 13, 2016

Multicell beamforming system and methods for OFDMA small-cell networks

NEC LAB AMERICA INC5 citations72
US10091114B2Oct 2, 2018

Asynchronous access and synchronous transmission for coexistence of wireless standards

NEC LAB AMERICA INC2 citations71
US9813944B2Nov 7, 2017

System and method for dynamic provisioning of Wi-Fi capacity in large venues using C-RAN architecture

NEC LAB AMERICA INC4 citations71
US9736785B2Aug 15, 2017

Degrees of freedom in multicell wireless systems with full-duplex base stations using interference alignment and methods for enabling full-duplex with half duplex clients

NEC LAB AMERICA INC1 citations63
US9723567B2Aug 1, 2017

Interference cancellation

NEC LAB AMERICA INC1 citations63
US9450654B2Sep 20, 2016

Multi-user multiple input multiple output (MIMO) communication with distributed antenna systems in wireless networks

NEC LAB AMERICA INC2 citations63
US8891604B2Nov 18, 2014

Coordinated multi-point transmission

NEC LAB AMERICA INC3 citations63
US10410025B2Sep 10, 2019

Product checkout and interest detection in retail environment using radio-frequency identification

NEC LAB AMERICA INC1 citations62
US10331493B2Jun 25, 2019

Systems and methods for distributed assignment of task identifiers

NEC LAB AMERICA INC1 citations62
US10296394B2May 21, 2019

Consistent hashing

NEC LAB AMERICA INC1 citations62
US11595934B2Feb 28, 2023

Infrastructure-free tracking and response

NEC LAB AMERICA INC0 citations59
US11169518B2Nov 9, 2021

Tracking indoor objects with inertial sensor measurements

NEC LAB AMERICA INC1 citations59
US11089432B2Aug 10, 2021

Tracking indoor objects from an unmanned aerial vehicle

NEC LAB AMERICA INC1 citations59
US12207226B2Jan 21, 2025

Device tracking with radio ranging and sensor functions

NEC LAB AMERICA INC0 citations57
US12000945B2Jun 4, 2024

Visual and RF sensor fusion for multi-agent tracking

NEC LAB AMERICA INC0 citations55
US11388564B2Jul 12, 2022

Infrastructure-free RF tracking in dynamic indoor environments

NEC LAB AMERICA INC0 citations54
US12487607B2Dec 2, 2025

Near real-time reconstruction using drones

NEC LAB AMERICA INC0 citations52
US11971473B2Apr 30, 2024

Locating objects in indoor spaces using radio frequency backscatter tags

NEC LAB AMERICA INC0 citations52
US10574535B2Feb 25, 2020

Interference topology inference to enhance performance of LTE unlicensed networks

NEC LAB AMERICA INC0 citations52
US10021172B2Jul 10, 2018

Software driven long-term-evolution core network for mobile access

NEC LAB AMERICA INC0 citations52

SUNDARESAN KARTHIKEYAN

6 patents

KHOJASTEPOUR MOHAMMAD A

4 patents

ZHANG HONGHAI

1 patent

LAKSHMANAN SRIRAM

1 patent

NEC CORP

1 patent

Showing the top 50 of 77 patents by PatentIndex Score.