David Thomson
13Patents
8h-index
12Co-inventors
69Inventor score
Filing activity: Aug 28, 1985 → Aug 31, 2018
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5023910A | Vector quantization in a harmonic speech coding arrangement | Physics | 144 | Expired |
| US5179626A | Harmonic speech coding arrangement where a set of parameters for a continuous magnitude spectrum is determined by a speech analyzer and the parameters are used by a synthesizer to determine a spectrum which is used to determine senusoids for synthesis | Physics | 116 | Expired |
| US6606595B1 | HMM-based echo model for noise cancellation avoiding the problem of false triggers | Physics | 18 | Expired |
| US10789943B1 | Proxy for selective use of human and artificial intelligence in a natural language understanding system | Physics | 16 | Active |
| US5007093A | Adaptive threshold voiced detector | Physics | 11 | Expired |
| US4890328A | Voice synthesis utilizing multi-level filter excitation | Physics | 11 | Expired |
| US6055499A | Use of periodicity and jitter for automatic speech recognition | Physics | 9 | Expired |
| US5046100A | Adaptive multivariate estimating apparatus | Physics | 9 | Expired |
| US6744885B1 | ASR talkoff suppressor | Physics | 8 | Expired |
| US4972490A | Distance measurement control of a multiple detector system | Physics | 6 | Expired |
| US4803730A | Fast significant sample detection for a pitch detector | Physics | 6 | Expired |
| US11210461B2 | Real-time privacy filter | Electricity | 4 | Active |
| US8761153B2 | Remote configuration of a voice over internet protocol telephone for smart dial tone | Electricity | 1 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.