Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7127663 | Bad frame indicator for radio-telephone receivers in GSM mobile systems | Roland Rick, Faraz Faheem, Helena Deirdre O'Shea | 2006-10-24 |
| 7046701 | System, method, and apparatus for fractional delay | Brian K. Butler, Deepu John, Haitao Zhang | 2006-05-16 |
| 6999500 | System for direct sequence spreading | Brian K. Butler, Deepu John, Haitao Zhang | 2006-02-14 |
| 6820103 | Digital filter with state storage | Brian K. Butler, Deepu John, Haitao Zhang | 2004-11-16 |
| 6535562 | Method and apparatus for rotating the phase of a complex signal | Brian K. Butler, Deepu John, Haitao Zhang | 2003-03-18 |