Adaptive techniques for full duplex communications

D Bharadia, JI Choi, M Jain, S Katti, TM Kim… - US Patent …, 2019 - Google Patents
In one aspect there is provided a method. The method may include receiving a first analog
radio frequency signal including a signal of interest and an interference signal caused by a …

Single channel full duplex wireless communications

M Jain, JI Choi, K Srinivasan, P Levis, S Katti… - US Patent …, 2018 - Google Patents
In one aspect there is provided a method. The method may include receiving a first analog
radio frequency signal including a signal of interest and an interference signal caused by a …

Self-interference cancellation

D Bharadia, S Katti, E McMilin, M Jain, JI Choi… - US Patent …, 2019 - Google Patents
A wireless communication device includes, in part, an analog interference cancellation
circuit and a controller. The analog cancellation circuit includes a multitude of delay paths …

Self-interference cancellation for MIMO radios

D Bharadia, S Katti - US Patent 10,243,719, 2019 - Google Patents
(57) ABSTRACT A MIMO wireless communication device includes, in part, a first transmit
path adapted to transmit a first transmit signal from a first antenna, a second transmit path …

Systems and methods for hybrid self-interference cancellation

J Mehlman, M Jain, JI Choi, D Bharadia - US Patent 9,077,421, 2015 - Google Patents
A system for hybrid self-interference cancellation includes a transmit coupler that samples
an RF transmit signal, a RF self-interference canceller that transforms the sampled RF …

Systems and methods for self-interference canceller tuning

D Bharadia, JI Choi, M Jain - US Patent 9,698,860, 2017 - Google Patents
A method for tuning an analog self-interference canceller includes detecting a tuning trigger,
calculating a set of tuning parameters (the tuning parameters including complex weights for …

Systems and methods for phase noise mitigation

JI Choi, M Jain, J Mehlman - US Patent 9,054,795, 2015 - Google Patents
8, 175,535 B2 5, 2012 Mu 2012, 0063369 A1 3, 2012 Lin et al 8,179,990 B2 5, 2012 Orlik et
al. 2012, 0063373 A1 3, 2012 Chincholi et al. 8,218,697 B2 7, 2012 Guess et al …

Systems and methods for non-linear digital self-interference cancellation

JI Choi, M Jain, J Mehlman, S Hong - US Patent 8,976,641, 2015 - Google Patents
9, 2013.(57) ABSTRACT A system and method for non-linear digital self-interference (51) Int.
Cl. cancellation including a pre-processor that generates a first H04 II/00(2006.01) pre …

Backscatter estimation using progressive self interference cancellation

D Bharadia, K Joshi, S Katti - US Patent 11,163,050, 2021 - Google Patents
Techniques for estimating one or more backscatter signals reflected from one or more
objects are disclosed. In one example, a backscatter sensor includes, in part, a receiver for …

Method and apparatus for tracking motion using radio frequency signals

K Joshi, D Bharadia, S Katti, M Kotaru - US Patent 11,209,536, 2021 - Google Patents
Techniques for a motion tracing device using radio fre quency signals are presented. The
motion tracing device utilizes radio frequency signals, such as WiFi to identify moving …