Alva E. Henderson
13Patents
7h-index
5Co-inventors
59Inventor score
Filing activity: Feb 4, 1980 → Jun 17, 1999
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4624012A | Method and apparatus for converting voice characteristics of synthesized speech | Physics | 79 | Expired |
| US6160734A | Method for ensuring security of program data in one-time programmable memory | Physics | 54 | Expired |
| US4441201A | Speech synthesis system utilizing variable frame rate | Physics | 35 | Expired |
| US6434584B1 | Flexible accumulator register file for use in high performance microprocessors | Physics | 23 | Expired |
| US4370628A | Relaxation oscillator including constant current source and latch circuit | Emerging Cross-Sectional Technologies | 11 | Expired |
| US4357489A | Low voltage speech synthesis system with pulse width digital-to-analog converter | Physics | 11 | Expired |
| US4419540A | Speech synthesis system with variable interpolation capability | Physics | 8 | Expired |
| US4319083A | Integrated speech synthesis circuit with internal and external excitation capabilities | Physics | 7 | Expired |
| US4658424A | Speech synthesis integrated circuit device having variable frame rate capability | Physics | 7 | Expired |
| US4310831A | Pulse width modulated, push/pull digital to analog converter | Physics | 5 | Expired |
| US4328395A | Speech synthesis system with variable interpolation capability | Physics | 5 | Expired |
| US4323732A | Speech synthesis system with alternative coded or uncoded parameter formats | Physics | 4 | Expired |
| US6484194B1 | Low cost multiplier block with chain capability | Physics | 3 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.