TDM/FDM communication system supporting both TDM and FDM-only communication units
US5038342A · kind A · utility
74Cited by
5References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 23, 1989 |
| Grant date | Aug 6, 1991 |
| Priority date | — |
| Expiry date | Jan 23, 2009 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W84/047
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An RF communications system that can determine when a requesting subscriber unit comprises a TDM capable unit, and when it doesn't. Channel assignments are based upon this determination. The system also includes repeaters that can translate communications in a TDM format as transmitted by a TDM capable unit into non-TDM format for subsequent transmission to a non-TDM capable unit, and vice versa.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.