Patent · US Expired

Arrangement for the remote switching-on and initialization of a data terminal

US4051326A · kind A · utility

91Cited by
4References
3Claims
0Family size

Assignee

Inventors

Key dates

Filing dateAug 17, 1976
Grant dateSep 27, 1977
Priority date
Expiry dateAug 17, 1996

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY02D30/50
  • WIPO fieldDigital communication
  • WIPO sectorElectrical engineering

Abstract

The function of the arrangement consists in connecting the terminal to the supply system (switching-on) and in loading therein the programs required for its operation (initialization) in the absence of the operator. A call signal (RING) sent by the remote computer produces the switching-on and initialization of the terminal. When the initialization has been completed, the terminal sends a ready-to-receive signal on the line and the conversation begins. At the end of the transfer of data, the telephone line is disconnected without the need to switch off the terminal . This is switched off after all the home processing operations (on the data received from the computer) are at an end. Finally, the terminal returns to the initial state, that is it is ready to switch on and be initialized on the arrival of the signal RING.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.