Audio program and telephonic communication system
US4024345A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 14, 1976 |
| Grant date | May 17, 1977 |
| Priority date | — |
| Expiry date | Jan 14, 1996 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M11/08
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A system for the selective distribution of audio programs and telephone functions between different locations having the capability through time sharing means to handle multiple simultaneous audio programs and private telephone communications independently. The system employs a timesharing system utilizing analog sampling and data transmission where the transmission of sampled digitized and analog data is only over short cable lengths. The system includes a plurality of telephones and a plurality of receiver stations, the telephone being interconnected through telephone control circuitry to a central processing unit and the receiver stations being interconnected through room selector units to the central processing unit and to audio sources.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.