Issued Patents All Time
Showing 1–23 of 23 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5364272 | Apparatus and method for teaching | Susan J. Herman, Richard H. Wallace, Michel Georges Stella | 1994-11-15 |
| 5083113 | Inductive coupled object identification system and method | Christopher Slawinski, Richard A. Houghton | 1992-01-21 |
| 4970659 | Learning aid or game having miniature electronic speech synthesis chip | Paul S. Breedlove, James H. Moore, Richard H. Wiggins | 1990-11-13 |
| 4631748 | Electronic handheld translator having miniature electronic speech synthesis chip | Paul S. Breedlove, James H. Moore, Richard H. Wiggins | 1986-12-23 |
| 4603384 | Data processing system with multiple memories and program counter | Ashok H. Someshwar | 1986-07-29 |
| 4484261 | Data processing system having interlinked fast and slow memory means and interlinked program counters | — | 1984-11-20 |
| 4468805 | Variable frame length data converter for a speech synthesis circuit | Richard H. Wiggins | 1984-08-28 |
| 4449233 | Speech synthesis system with parameter look up table | — | 1984-05-15 |
| 4447881 | Data processing system integrated circuit having modular memory add-on capacity | Perry W. Lou, Lawrence J. Housey, Graham S. Tubbs, Jeffrey R. Teza | 1984-05-08 |
| 4435775 | Data processing system having interlinked slow and fast memory means | Ashok H. Someshwar | 1984-03-06 |
| 4418397 | Address decode system | Warren S. Graber | 1983-11-29 |
| 4370647 | System and method of driving a multiplexed liquid crystal display by varying the frequency of the drive voltage signal | — | 1983-01-25 |
| 4354056 | Method and apparatus for speech synthesis filter excitation | Richard H. Wiggins | 1982-10-12 |
| 4344148 | System using digital filter for waveform or speech synthesis | Richard H. Wiggins | 1982-08-10 |
| 4335275 | Synchronous method and apparatus for speech synthesis circuit | — | 1982-06-15 |
| 4331836 | Speech synthesis integrated circuit device | Richard H. Wiggins | 1982-05-25 |
| 4304964 | Variable frame length data converter for a speech synthesis circuit | Richard H. Wiggins | 1981-12-08 |
| 4287559 | Electronic microprocessor system having two cycle branch logic | Steven J. Easley | 1981-09-01 |
| 4234761 | Method of communicating digital speech data and a memory for storing such data | Richard H. Wiggins | 1980-11-18 |
| 4209836 | Speech synthesis integrated circuit device | Richard H. Wiggins | 1980-06-24 |
| 4209844 | Lattice filter for waveform or speech synthesis circuits using digital logic | Richard H. Wiggins | 1980-06-24 |
| 4189779 | Parameter interpolator for speech synthesis circuit | — | 1980-02-19 |
| 4188626 | Method for scanning a keyboard and for actuating a display device via common conductors | Gene A. Frantz | 1980-02-12 |