Teletypewriter motor controlling

Details Teletypewriter motor controlling Teletypewriter motor controlling

1978-09-25

1980-03-04

Robinson, Thomas A.

Telegraphy

Systems

Automatic

178 175, 178 23R, 358267, H04L 700, H04N 132

Patent

active

041918487

ABSTRACT:
The first signal transition of a teletypewriter signal triggers a resettable one-shot that activates the motor run switch to turn the teletypewriter motor on for a minimum interval of from two seconds to several minutes and also is applied to the input of a shift register that digitizes and delays the teletypewriter input signal enough to allow the motor to reach operating speed, typically 600 milliseconds, before the delayed signal is applied to the Teletype printer. If no signal is received for a duration that exceeds the shift register delay, logical circuitry increases the shift pulse rate so that the delay shift register furnishes negligible delay. Absence of an input signal for an interval longer than the astable ON interval of the resettable one-shot deactivates the motor run switch.

REFERENCES:
patent: 3643022 (1972-02-01), Ferroglio
patent: 4004088 (1977-01-01), Heywang
patent: 4054745 (1977-10-01), Norman

Affiliated with

Also associated with

Rating

Teletypewriter motor controlling does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Teletypewriter motor controlling, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Teletypewriter motor controlling will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2040820