End office of a telephone system with a zero loss plan
US5487109A · kind A · utility
1Cited by
9References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 17, 1994 |
| Grant date | Jan 23, 1996 |
| Priority date | — |
| Expiry date | May 17, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B3/20
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An end office of a telephone system in which the end office is operated based on a zero loss plan which requires that the line side equipment be exclusive of any means for introducing loss into the receive paths established in the line side equipment for the subscriber locations served by the end office switch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.