Digital data service system
US4862480A · kind A · utility
16Cited by
12References
22Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 9, 1987 |
| Grant date | Aug 29, 1989 |
| Priority date | — |
| Expiry date | Apr 9, 2007 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L25/4925
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A digital data service transmission system is described in which 19.2 kbps data rate AMI encoded local loop signals are formatted for reliable transmission at 64 kbps rates over unqualified digital facilities and re-formatted for entry into DDS network hierarchy.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.