Digital compressed voice paging system which uses R.D.S. format for the ID signals and S.C.A. format for the voice signals both formats being FM subcarriers
US5881365A · kind A · utility
23Cited by
35References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 18, 1996 |
| Grant date | Mar 9, 1999 |
| Priority date | — |
| Expiry date | Jan 18, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W88/023
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The present invention is a digital FM voice paging system which uses digital signal processing (including D/A conversion and data compression) to transmit voice pager data over existing FM broadcast subcarrriers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.