Answer supervision system
US4519072A · kind A · utility
4Cited by
9References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 10, 1982 |
| Grant date | May 21, 1985 |
| Priority date | — |
| Expiry date | Nov 10, 2002 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q11/04
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
This disclosure depicts a telecommunication supervision system, such as a supervisory progress signal detector, for evaluating the status of an input signal from a communication channel. An output channel is outputted when the input signal exceeds the threshold reference, and the channel signal is analyzed to determine the identity of the particular cadence of the input signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.