Patent
Pulse generator for producing pulses of definable width
TLDR
A pulse generating circuit provides a series of pulses each of which is a given percentage or portion of the period of a source signal the frequency of which may vary over a fairly substantial range as discussed by the authors.Abstract:
A pulse generating circuit provides a series of pulses each of which is a given percentage or portion of the period of a source signal the frequency of which may vary over a fairly substantial range. This circuit recognizes a prescribed condition of the source signal to initiate a timing period the length of which is a function of the frequency of the source signal. Pulses each having a width of the period so timed are thus generated which pulses are a given percentage of the period of the source of the signal.read more
Citations
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References
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Monostable multivibrator pulse-forming circuit
TL;DR: In this article, a noise-immune pulse-forming circuit with a flip flop is described, which has a time-determining capacitor which has nearly no voltage across it in quiescent state.
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Logic circuit delay system comprising monostable means for providing different time delays for positive and negative transitions
TL;DR: In this paper, a logic circuit having a single monostable circuit operating a flip-flop circuit and means controlled by the latter to switch resistance values in an RC circuit for establishing different time delays for positive and negative logic transitions is defined.
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Frequency-to-voltage converter having high noise immunity
TL;DR: In this paper, a retriggerable second timing circuit is employed to detect a monitored predetermined frequency input slightly below a specific rated frequency, which causes the converter output voltage to abruptly rise to, and remain at, a voltage amplitude corresponding to the rated frequency input.
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Apparatus for center-referenced pulse width modulation
TL;DR: In this paper, the center-referenced pulse width modulation is achieved by turning on a bistable element when an initial step sweep signal reaches a voltage reference level during the ON period of an applied gating pulse and turning the element OFF during the OFF period of the gating pulses after a time interval complementary to the ON periods preceding the gated pulse center.