Inventor
David L. Barron
Inventor
Scottsdale, AZ, US
Overview
Patents· 20 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G10Lprimary
G10LSpeech analysis techniques or speech synthesis38%
H04MTelephonic communication24%
H03GControl of amplification10%
H03HImpedance networks, e.g. resonant circuits10%
H04RLoudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers7%
G02BOptical elements, systems or apparatus3%
G10KSound-producing devices3%
H02PControl or regulation of electric motors, electric generators or dynamo-electric converters3%
PatentTitleYear
9,537,460'Apparatus and method for automatic gain control'20179,462,377'Systems and methods for optimizing an audio communication system'20168,794,852'Hybrid fiber optic pigtail assembly'20148,712,769'Apparatus and method for noise removal by spectral smoothing'20148,655,418'Method and apparatus for a frequency domain echo suppression filter'20148,600,040'Apparatus and method for convergence control'20138,041,054'Systems and methods for selectively switching between multiple microphones'20117,734,466'Reduced complexity recursive least square lattice structure adaptive filter by means of limited recursion of the backward and forward error prediction squares'20107,702,711'Reduced complexity recursive least square lattice structure adaptive filter by means of estimating the backward and forward error prediction squares using binomial expansion'20107,243,065'Low-complexity comfort noise generator'20077,142,665'Automatic gain control for an adaptive finite impulse response and method therefore'20067,065,207'Controlling attenuation during echo suppression'20066,928,409'Speech recognition using polynomial expansion and hidden markov models'20056,658,112'Voice decoder and method for detecting channel errors using spectral energy evolution'20035,357,567'Method and apparatus for volume switched gain control'19945,265,190'CELP vocoder with efficient adaptive codebook search'19935,221,885'Low-power dual voltage drive circuit and method'19935,187,745'Efficient codebook search for CELP vocoders'19935,179,594'Efficient calculation of autocorrelation coefficients for CELP vocoder adaptive codebook'19935,173,941'Reduced codebook search arrangement for CELP vocoders'1992Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1992–2010Patents assigned to MOTOROLA INC (8)· patent assignee history
1992–2017Based in Scottsdale, AZ, US· patent location history
2005–2007Patents assigned to FREESCALE SEMICONDUCTOR INC (4)· patent assignee history
2011–2014Patents assigned to CONTINENTAL AUTOMOTIVE SYSTEMS (4)· patent assignee history
2013–2017Patents assigned to BARRON DAVID (4)· patent assignee history
2014Based in Tamaulipas, MX· patent location history
2016–2017Patents assigned to Continental automotive systems inc (2)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| MOTOROLA INC | 8 | 1992–2010 |
| BARRON DAVIDself | 4 | 2013–2017 |
| CONTINENTAL AUTOMOTIVE SYSTEMS | 4 | 2011–2014 |
| FREESCALE SEMICONDUCTOR INC | 4 | 2005–2007 |
| Continental automotive systems inc | 2 | 2016–2017 |
Locations
| Location | Patents | Span |
|---|---|---|
| Scottsdale, AZ, US | 19 | 1992–2017 |
| Tamaulipas, MX | 1 | 2014 |