Tetsu Taguchi
30Patents
16h-index
3Co-inventors
70Inventor score
Filing activity: Jan 4, 1979 → Jul 25, 1996
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4282405A | Speech analyzer comprising circuits for calculating autocorrelation coefficients forwardly and backwardly | Physics | 262 | Expired |
| US5339054A | Modulated signal transmission system compensated for nonlinear and linear distortion | Electricity | 126 | Expired |
| US4723294A | Noise canceling system | Electricity | 78 | Expired |
| US4301329A | Speech analysis and synthesis apparatus | Physics | 42 | Expired |
| US4360708A | Speech processor having speech analyzer and synthesizer | Physics | 38 | Expired |
| US4769847A | Noise canceling apparatus | Electricity | 34 | Expired |
| US5062102A | Echo canceller with means for determining filter coefficients from autocorrelation and cross-correlation coefficients | Electricity | 30 | Expired |
| US4817141A | Confidential communication system | Electricity | 24 | Expired |
| US4672638A | Multipath canceller for cancelling a distortion caused to a radio frequency pulse by multipath transmission | Physics | 24 | Expired |
| US4701955A | Variable frame length vocoder | Physics | 21 | Expired |
| US5056143A | Speech processing system | Physics | 20 | Expired |
| US4852172A | Speech recognition system | Physics | 20 | Expired |
| US5027404A | Pattern matching vocoder | Physics | 19 | Expired |
| US5504832A | Reduction of phase information in coding of speech | Physics | 16 | Expired |
| US4937868A | Speech analysis-synthesis system using sinusoidal waves | Physics | 16 | Expired |
| US4815135A | Speech signal processor | Physics | 16 | Expired |
| US4975955A | Pattern matching vocoder using LSP parameters | Physics | 15 | Expired |
| US4720865A | Multi-pulse type vocoder | Physics | 15 | Expired |
| US5048088A | Linear predictive speech analysis-synthesis apparatus | Physics | 14 | Expired |
| US5463716A | Formant extraction on the basis of LPC information developed for individual partial bandwidths | Physics | 14 | Expired |
| US5734790A | Low bit rate speech signal transmitting system using an analyzer and synthesizer with calculation reduction | Physics | 11 | Expired |
| US4991215A | Multi-pulse coding apparatus with a reduced bit rate | Physics | 10 | Expired |
| US5696874A | Multipulse processing with freedom given to multipulse positions of a speech signal | Physics | 9 | Expired |
| US4881267A | Encoder of a multi-pulse type capable of optimizing the number of excitation pulses and quantization level | Physics | 9 | Expired |
| US5226083A | Communication apparatus for speech signal | Physics | 9 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.