Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4970659 | Learning aid or game having miniature electronic speech synthesis chip | Paul S. Breedlove, James H. Moore, George L. Brantingham | 1990-11-13 |
| 4631748 | Electronic handheld translator having miniature electronic speech synthesis chip | Paul S. Breedlove, James H. Moore, George L. Brantingham | 1986-12-23 |
| 4468805 | Variable frame length data converter for a speech synthesis circuit | George L. Brantingham | 1984-08-28 |
| 4464118 | Didactic device to improve penmanship and drawing skills | Warner C. Scott | 1984-08-07 |
| 4443859 | Speech analysis circuits using an inverse lattice network | — | 1984-04-17 |
| 4441399 | Interactive device for teaching musical tones or melodies | George R. Doddington, Craig J. Cato | 1984-04-10 |
| 4441201 | Speech synthesis system utilizing variable frame rate | Alva E. Henderson | 1984-04-03 |
| 4439161 | Taught learning aid | George R. Doddington, Craig J. Cato | 1984-03-27 |
| 4354056 | Method and apparatus for speech synthesis filter excitation | George L. Brantingham | 1982-10-12 |
| 4344148 | System using digital filter for waveform or speech synthesis | George L. Brantingham | 1982-08-10 |
| 4331836 | Speech synthesis integrated circuit device | George L. Brantingham | 1982-05-25 |
| 4323732 | Speech synthesis system with alternative coded or uncoded parameter formats | Alva E. Henderson | 1982-04-06 |
| 4319083 | Integrated speech synthesis circuit with internal and external excitation capabilities | Alva E. Henderson | 1982-03-09 |
| 4304964 | Variable frame length data converter for a speech synthesis circuit | George L. Brantingham | 1981-12-08 |
| 4234761 | Method of communicating digital speech data and a memory for storing such data | George L. Brantingham | 1980-11-18 |
| 4209836 | Speech synthesis integrated circuit device | George L. Brantingham | 1980-06-24 |
| 4209844 | Lattice filter for waveform or speech synthesis circuits using digital logic | George L. Brantingham | 1980-06-24 |