Inventor

CAIRNS DOUGLAS A

US40 patents

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

CAIRNS DOUGLAS A

ERICSSON TELEFON AB L M

Selective signal demodulation method and apparatus

Reduced complexity parametric covariance estimation for precoded MIMO transmissions

Distributed sigma-delta sensor network

Speed-based, hybrid parametric/non-parametric equalization

Method and apparatus for QAM demodulation in a generalized rake receiver

Method and apparatus for parameter estimation in a generalized rake receiver

Method and apparatus for code power parameter estimation for received signal processing

MMSE channel estimation in a communications receiver

Method and apparatus for selecting demodulation processing delays in a receiver

Method and apparatus for suppressing communication signal interference

SIR prediction method and apparatus

Code power estimation for MIMO signals

Method and apparatus for scaling parameter estimation in parametric generalized rake receivers

Method and apparatus for extended least squares estimation for generalized rake receiver parameters using multiple base stations

Method and apparatus for improved channel estimation for communications signal processing

Robust multicode detector for HSDPA

Method and apparatus for interference estimation in a generalized RAKE receiver

Method and apparatus for setting received signal processing delays as a function of channel dispersiveness

Efficient computation of a waveform correlation matrix

Method and apparatus for compensating for processing timing misalignment in a communication receiver

CAIRNS DOUGLAS A

Adaptive timing recovery via generalized RAKE reception

Data to pilot ratio estimation

Efficient method for forming and sharing impairment covariance matrix

Joint time/frequency processing for wireless receivers

Nonparametric MIMO G-Rake receiver

Method and apparatus for controlling interference suppressing receivers

Efficient computation of soft scaling factors for linear multi-user detector

Method and apparatus for efficient estimation of interference in a wireless receiver

Convolutional impairment covariance estimation method and apparatus

Robust iterative linear system solvers

Method and apparatus for efficient AMLD matrix computations

Method of closed loop power control adjusted by self-interference

Channel geometry detector

Doppler frequency control of G-rake receiver

ERICSSON INC

Method and system for GPS bit-edge synchronization in the presence of burst-mode interference

Delta sigma converter incorporating a multiplier

Integrated noise cancellation and residual echo suppression

JONSSON ELIAS

Method and apparatus for allocating processing delays in multi-carrier systems

ROSENQVIST ANDERS

Data-aided SIR estimation

DRUGGE OSKAR

Methods and devices for allocating scrambling codes