Stray pulse eliminating device

Details Stray pulse eliminating device Stray pulse eliminating device

1984-08-06

1987-01-20

Hix, L. T.

Communications: electrical

Audible indication

Percussion-type sound producer

307353, 328151, H03K 5159

Patent

active

046383018

ABSTRACT:
The invention relates to a device for eliminating stray pulses occuring on the output of a digital-to-analogue converter DA. The pulses may be caused by, for example, insufficient synchronism in the input data bits and may be predicted in time. According to the invention an inductor L is arranged between the output of the digital-to-analogue converter and a following circuit F, for example a deflecting amplifier for random scan displays, and a switch S2 is arranged between the said output and ground which switch when a pulse is predicted to occur shortcircuits the output of the digital-to-analogue converter to ground. Hereby an eliminating device of simple and cheap construction is obtained operating at high frequencies.

REFERENCES:
patent: 3851260 (1974-11-01), Colin
patent: 4132908 (1979-06-01), Hughes

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