Digital modem
US5033062A · kind A · utility
120Cited by
5References
13Claims
0Family size
Inventors
Key dates
| Filing date | May 30, 1989 |
| Grant date | Jul 16, 1991 |
| Priority date | — |
| Expiry date | May 30, 2009 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M11/068
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A digital modem is connected to a CBX in a network. Data is transmitted to the digital modem in a data field of synchronous serial data frames. The digital modem converts the data into a digital signal corresponding to a time sampled analog signal representing the data. The converted digital signal is communicated to a digital to analog converter for transmission on a telephone line. Analog signals received on the telephone line are digitized, and then converted to data in the digital modem.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.