Test data insertion arrangement for a conference circuit
US4466092A · kind A · utility
7Cited by
5References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 27, 1982 |
| Grant date | Aug 14, 1984 |
| Priority date | — |
| Expiry date | Dec 27, 2002 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M3/561
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A time shared conference circuit for establishing conference calls in a T-S-T digital switching network provides for automatically inserting predefined test data into unused time slots of its output PCM voice data stream. The transmission of this predefined data verifies the interface operation of the conference circuit with the switching network.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.