Douglas A. Cairns
49Patents
7h-index
33Co-inventors
69Inventor score
Filing activity: Jul 14, 2000 → Oct 21, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6452524B1 | Delta sigma converter incorporating a multiplier | Electricity | 22 | Expired |
| US7769078B2 | Apparatus, methods and computer program products for delay selection in a spread-spectrum receiver | Electricity | 15 | Active |
| US8000413B2 | Selective signal demodulation method and apparatus | Electricity | 12 | Active |
| US7027591B2 | Integrated noise cancellation and residual echo suppression | Electricity | 12 | Expired |
| US8605771B2 | Data to pilot ratio estimation | Electricity | 11 | Active |
| US7006790B2 | Method and system for GPS bit-edge synchronization in the presence of burst-mode interference | Electricity | 11 | Expired |
| US8964912B2 | Adaptive timing recovery via generalized RAKE reception | Electricity | 11 | Active |
| US7456770B2 | Distributed sigma-delta sensor network | Electricity | 7 | Active |
| US6707857B1 | Reference signal pre-distortion for transmitter with frequency synthesizer based phase encoding | Electricity | 7 | Expired |
| US8041325B2 | Speed-based, hybrid parametric/non-parametric equalization | Electricity | 5 | Active |
| US8428106B2 | Efficient method for forming and sharing impairment covariance matrix | Electricity | 5 | Active |
| US8224278B2 | Convolutional impairment covariance estimation method and apparatus | Electricity | 5 | Active |
| US7957485B2 | Reduced complexity parametric covariance estimation for precoded MIMO transmissions | Electricity | 5 | Active |
| US7995641B2 | Method and apparatus for code power parameter estimation for received signal processing | Electricity | 4 | Active |
| US9697177B1 | Analytic system for selecting a decomposition description of sensor data | Electricity | 4 | Active |
| US7778312B2 | Method and apparatus for selecting demodulation processing delays in a receiver | Electricity | 3 | Active |
| US7668226B2 | Method and apparatus for estimating gain offsets for amplitude-modulated communication signals | Electricity | 3 | Active |
| US7539240B2 | Method and apparatus for parameter estimation in a generalized rake receiver | Electricity | 3 | Expired |
| US8798176B2 | Joint time/frequency processing for wireless receivers | Electricity | 3 | Active |
| US7590167B2 | Method and apparatus for QAM demodulation in a generalized rake receiver | Electricity | 3 | Active |
| US7711035B2 | Method and apparatus for suppressing communication signal interference | Electricity | 3 | Active |
| US7983208B2 | MMSE channel estimation in a communications receiver | Electricity | 3 | Active |
| US11354566B1 | Causal inference and policy optimization system based on deep learning models | Physics | 3 | Active |
| US8144749B2 | Nonparametric MIMO G-Rake receiver | Electricity | 3 | Active |
| US8699553B2 | Data-aided SIR estimation | Electricity | 2 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.