Wiggins; Richard H.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Wiggins; Richard H..The latest application filed is for "didactic device to improve penmanship and drawing skills".
- Wiggins; Richard H. - Dallas TX
- Wiggins; Richard H. - Burlington MA
| Patent | Date |
|---|---|
| Didactic device to improve penmanship and drawing skills Grant 4,464,118 - Scott , et al. August 7, 1 | 1984-08-07 |
| Speech analysis circuits using an inverse lattice network Grant 4,443,859 - Wiggins April 17, 1 | 1984-04-17 |
| Interactive device for teaching musical tones or melodies Grant 4,441,399 - Wiggins , et al. April 10, 1 | 1984-04-10 |
| Speech synthesis system utilizing variable frame rate Grant 4,441,201 - Henderson , et al. April 3, 1 | 1984-04-03 |
| Taught learning aid Grant 4,439,161 - Wiggins , et al. March 27, 1 | 1984-03-27 |
| Method and apparatus for speech synthesis filter excitation Grant 4,354,056 - Brantingham , et al. October 12, 1 | 1982-10-12 |
| Integrated speech synthesis circuit with internal and external excitation capabilities Grant 4,319,083 - Wiggins , et al. March 9, 1 | 1982-03-09 |
| Piecewise linear predictive coding system Grant 4,070,709 - Roberts , et al. January 24, 1 | 1978-01-24 |
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