Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7424051 | Pad and CODEC detection | Jeffrey Allan Green | 2008-09-09 |
| 7406157 | Methods and apparatuses for determining loop characteristics using an extended voice-band modem | Sigang Qiu, Prashant Pratap Tawade, Wesley H. Smith, Mandayam Krishnan | 2008-07-29 |
| 7366470 | Inter-modulation distortion compensation | Jeffrey Allan Green, Singang Qiu | 2008-04-29 |
| 7339996 | Receiver codec super set constellation generator | Sigang Qiu, Bo Zhang | 2008-03-04 |
| 7133497 | Use of lower bandwidth technology to determine channel capability for supporting higher bandwidth technology | Karl Nordling, Mandayam Krishnan, Fred Schuckert, Wesley H. Smith, Don Carmon | 2006-11-07 |
| 6724814 | Pad and CODEC detection | Jeffrey Allan Green | 2004-04-20 |
| 6721363 | Receiver CODEC super set constellation generator | Sigang Qiu, Bo Zhang | 2004-04-13 |
| 6721357 | Constellation generation and re-evaluation | Bo Zhang, Sigang Qiu, Xuefeng Jiang | 2004-04-13 |
| 6301296 | Digital impairment learning sequence | Jeffrey Allan Green, Xuefeng Jiang | 2001-10-09 |
| 5850421 | Method and apparatus for estimating clock slew and carrier translation | Raj Mani Misra | 1998-12-15 |
| 5185763 | Data bit to constellation symbol mapper | — | 1993-02-09 |
| 5119403 | Superframes | — | 1992-06-02 |
| 4761784 | Modem and method using multidimensional coded modulation | Rangarajan Srinivasagopalan, James D. Pruett, Luis Farias | 1988-08-02 |
| 4646320 | Automatic digital strapping apparatus for data modems | — | 1987-02-24 |
| 4534043 | Test tone detector apparatus and method modem using same | — | 1985-08-06 |