Method and apparatus for telephone systems for facilitating data traffic between the subscriber stations and a central data processor

US4001507A · kind A · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Franz Bonk
• Wolfgang Burger · Burgrain, DE

Key dates

• Filing date: Feb 12, 1975
• Grant date: Jan 4, 1977
• Expiry date: Feb 12, 1995

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04M11/06
• WIPO field: Telecommunications
• WIPO sector: Electrical engineering

Abstract

Method and apparatus are described for telephone systems over which data traffic can proceed and wherein individual subscriber stations can communicate directly with a data processor. The data is emitted from the processor, for example, in acoustic form. In addition appropriately formed data can be transmitted, as well, for operating a printing unit at the subscriber station. The latter data may be supplemented by further information in a code suitable for operating the printing unit and transmitted over the same communication path.