Universal modem for digital video, audio and data communications
US6192070A · kind A · utility
248Cited by
10References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 2, 1998 |
| Grant date | Feb 20, 2001 |
| Priority date | — |
| Expiry date | Jan 2, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/2601
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A universal modem has a software-configurable modulator/demodulator which accommodates different modulation formats such as those associated with terrestrial, cable, phone line, satellite and wireless communications to be transmitted and received through a single device in which the modem has reconfigurable logic to accommodate the format of the signals being received or transmitted. In one embodiment, the system tracks channel noise and changes modulation format at both the transmit and receive sides of the system through the use of a controller that controls both sides.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.