Digital autostart circuit

Details Digital autostart circuit Digital autostart circuit

1979-08-16

1981-01-06

Robinson, Thomas A.

Telegraphy

Systems

Automatic

178 3, H04L 710, H04M 1100

Patent

active

042438365

ABSTRACT:
A terminal unit having a digital autostart circuit for energizing an output device such as a teleprinter. The autostart circuit responds only to the space character which is transmitted between every word in the commonly used Murray and ASCII codes. A method for detecting the presence of information signals encoded in the Murray and ASCII codes wherein a predetermined bit of each incoming signal is inverted and the binary states of each bit of incoming character are sensed to determine the presence of the space character.

REFERENCES:
patent: 2873315 (1959-02-01), Fricks
patent: 3601539 (1971-08-01), DaSilva
patent: 3798549 (1974-03-01), Ollinger et al.
patent: 3818134 (1974-06-01), Firman
patent: 4013965 (1977-03-01), Scharfe, Jr.
patent: 4054745 (1977-10-01), Norman
patent: 4069396 (1978-01-01), Vollnhals et al.

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