Charge-coupled-device based data-in-voice modem
US5577066A · kind A · utility
24Cited by
6References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 13, 1994 |
| Grant date | Nov 19, 1996 |
| Priority date | — |
| Expiry date | May 13, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04H2201/20
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A data-in-voice modem is disclosed using charge coupled devices. Unique features include: (1) Baseband-to-IF upconversion to enable CCD-based demod/processing; (2) All analog (no analog-to-digital A/D required); option for post-CCD A/D; (3) Additional on-chip functions; (4) Stand-alone, CCD-based high-rate modem over telephone lines; and (5) CCD-based cable-tv/multimedia processing, via baseband-to-IF upconversion, followed by IF-sampled CCD processing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.