Data terminal device

Details Data terminal device Data terminal device

1987-01-08

1990-01-02

Heckler, Thomas M.

Boots, shoes, and leggings

36494081, 364929, G06F 1342

Patent

active

048917834

ABSTRACT:
A data terminal device, having a plurality of protocols stored therein, has a data transmitting mode and a data receiving mode. When in a transmitting mode, the terminal device transmits to another data terminal initial data according to one of the protocols. The terminal device then awaits a feed back signal from the other terminal device. If a feed back signal is received, the terminal device transmits the data. If no feed back signal is received, the terminal device transmits a break signal which indicates that a change in receiving protocol is required. When in a receiving mode, the terminal device receives data according to one of the protocols. If data is received having the same protocol as that of the receiver of the terminal device, a feed back signal is transmitted to the other terminal device. If the data protocol received is different, no feed back signal is transmitted, and the terminal device awaits a break signal indicating that change in receiving protocol is required.

REFERENCES:
patent: 4281315 (1981-07-01), Bauer et al.
patent: 4368512 (1983-01-01), Kyu et al.
patent: 4688170 (1987-08-01), Waite et al.

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