David L. Barron
20Patents
10h-index
17Co-inventors
72Inventor score
Filing activity: May 3, 1991 → Sep 23, 2014
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US8041054B2 | Systems and methods for selectively switching between multiple microphones | Electricity | 40 | Active |
| US5187745A | Efficient codebook search for CELP vocoders | Physics | 36 | Expired |
| US5265190A | CELP vocoder with efficient adaptive codebook search | Physics | 34 | Expired |
| US5179594A | Efficient calculation of autocorrelation coefficients for CELP vocoder adaptive codebook | Physics | 23 | Expired |
| US5357567A | Method and apparatus for volume switched gain control | Electricity | 21 | Expired |
| US5173941A | Reduced codebook search arrangement for CELP vocoders | Physics | 21 | Expired |
| US7243065B2 | Low-complexity comfort noise generator | Physics | 13 | Expired |
| US5221885A | Low-power dual voltage drive circuit and method | Electricity | 11 | Expired |
| US7142665B2 | Automatic gain control for an adaptive finite impulse response and method therefore | Electricity | 11 | Expired |
| US6658112B1 | Voice decoder and method for detecting channel errors using spectral energy evolution | Physics | 10 | Expired |
| US8794852B2 | Hybrid fiber optic pigtail assembly | Physics | 5 | Active |
| US8655418B2 | Method and apparatus for a frequency domain echo suppression filter | Electricity | 3 | Active |
| US7734466B2 | Reduced complexity recursive least square lattice structure adaptive filter by means of limited recursion of the backward and forward error prediction squares | Electricity | 3 | Active |
| US9462377B2 | Systems and methods for optimizing an audio communication system | Electricity | 2 | Active |
| US8712769B2 | Apparatus and method for noise removal by spectral smoothing | Physics | 1 | Active |
| US7065207B2 | Controlling attenuation during echo suppression | Electricity | 1 | Expired |
| US9537460B2 | Apparatus and method for automatic gain control | Electricity | 1 | Active |
| US6928409B2 | Speech recognition using polynomial expansion and hidden markov models | Physics | 0 | Expired |
| US7702711B2 | Reduced complexity recursive least square lattice structure adaptive filter by means of estimating the backward and forward error prediction squares using binomial expansion | Electricity | 0 | Active |
| US8600040B2 | Apparatus and method for convergence control | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.