Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9648420 | Rectifier circuit for monitoring dc offset of a single-supply audio power amplifier | Dallas Dwight Hickerson | 2017-05-09 |
| 9379681 | Rectifier circuit for monitoring DC offset of a single-supply audio power amplifier | Dallas Dwight Hickerson | 2016-06-28 |
| 6772126 | Method and apparatus for transferring low bit rate digital voice messages using incremental messages | Floyd D. Simpson, Jian-Cheng Huang, Sunil Satyamurti, Robert J. Schwendeman | 2004-08-03 |
| 6691081 | Digital signal processor for processing voice messages | Jian-Cheng Huang, Floyd D. Simpson | 2004-02-10 |
| 6496798 | Method and apparatus for encoding and decoding frames of voice model parameters into a low bit rate digital voice message | Jian-Cheng Huang, Floyd D. Simpson, Sunil Satyamurti, Oleg Andric | 2002-12-17 |
| 6418405 | Method and apparatus for dynamic segmentation of a low bit rate digital voice message | Sunil Satyamurti, Jian-Cheng Huang, Floyd D. Simpson | 2002-07-09 |
| 6418407 | Method and apparatus for pitch determination of a low bit rate digital voice message | Jian-Cheng Huang, Floyd D. Simpson, Sunil Satyamurti | 2002-07-09 |
| 6370500 | Method and apparatus for non-speech activity reduction of a low bit rate digital voice message | Jian-Cheng Huang, Sunil Satyamurti, Floyd D. Simpson | 2002-04-09 |
| 6151572 | Automatic and attendant speech to text conversion in a selective call radio system and method | Yan Cheng, Lu Chang, Arthur Gerald Herkert | 2000-11-21 |
| 6064955 | Low complexity MBE synthesizer for very low bit rate voice messaging | Jian-Cheng Huang, Floyd D. Simpson | 2000-05-16 |
| 5652783 | Method and apparatus for selectively encoding digital messages in a communication system | James Michael Keba, Arthur Gerald Herkert | 1997-07-29 |