Issued Patents All Time
Showing 51–67 of 67 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6073093 | Combined residual and analysis-by-synthesis pitch-dependent gain estimation for linear predictive coders | — | 2000-06-06 |
| 6067511 | LPC speech synthesis using harmonic excitation generator with phase modulator for voiced speech | Mark Lewis Grabb, Steven R. Koch, Glen William Brooksby | 2000-05-23 |
| 5842160 | Method for improving the voice quality in low-rate dynamic bit allocation sub-band coding | — | 1998-11-24 |
| 5710781 | Enhanced fading and random pattern error protection for dynamic bit allocation sub-band coding | Steven R. Koch | 1998-01-20 |
| 5448768 | Aircraft data communication employing existing voice channels | — | 1995-09-05 |
| 5440544 | Integrated data link concept for air traffic control applications | — | 1995-08-08 |
| 5384793 | Fading and random pattern error protection method for dynamic bit allocation sub-band coding | — | 1995-01-24 |
| 5138661 | Linear predictive codeword excited speech synthesizer | Steven R. Koch | 1992-08-11 |
| 5105464 | Means for improving the speech quality in multi-pulse excited linear predictive coding | — | 1992-04-14 |
| 5097507 | Fading bit error protection for digital cellular multi-pulse speech coder | Steven R. Koch, Raymond L. Toy | 1992-03-17 |
| 5073940 | Method for protecting multi-pulse coders from fading and random pattern bit errors | Steven R. Koch, Raymond L. Toy | 1991-12-17 |
| 5060269 | Hybrid switched multi-pulse/stochastic speech coding technique | — | 1991-10-22 |
| 4980916 | Method for improving speech quality in code excited linear predictive speech coding | — | 1990-12-25 |
| 4817146 | Cryptographic digital signal transceiver method and apparatus | Craig F. Szczutkowski, Satish Kappagantula, Eugene H. Peterson, III | 1989-03-28 |
| 4776014 | Method for pitch-aligned high-frequency regeneration in RELP vocoders | — | 1988-10-04 |
| 4649505 | Two-input crosstalk-resistant adaptive noise canceller | Seth D. Silverstein, Steven R. Koch | 1987-03-10 |
| 4622680 | Hybrid subband coder/decoder method and apparatus | — | 1986-11-11 |