Microprocessor data modem
US4263670A · kind A · utility
28Cited by
8References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 11, 1979 |
| Grant date | Apr 21, 1981 |
| Priority date | — |
| Expiry date | May 11, 1999 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2027/0087
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A data modem is provided which is operative at a data rate of 4800 bps and employing 8 phase DPSK modulation. The modem includes a microprocessor and associated memories for digital signal processing and control of substantially all transmitter and receiver operations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.