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US 3,940,632 AGranted
Nonpredictable actuator for switches or the like
AssigneeCalspan Corporation
InventorRobert Allen Padgug
Life of this patent
Estimating the term…
Abstract
A nonpredictable, nondeterministic actuator for switches or the like having two unsynchronized pulse generators delivering pulses to an AND gate which passes an actuating signal only when the pulses from the generators are coincidental. One generator produces a pulse train at a frequency much higher than the other generator which produces very short pulses and has a maximum timing uncertainty or jitter which is greater than the period of the first mentioned generator.
Claims12
A nonpredictable actuator for switches or the like, comprising;
- a. first pulse generating means for producing a first output consisting of a train of pulses at a first frequency,
- b. second pulse generating means for producing a second output of short pulses at a second frequency which is much lower than said first frequency, and
- c. means responsive to said first and second outputs for generating an actuating signal for lamp circuits or the like only when said first and second output of pulses are coincidental.
Dependencies are inferred from the claim text.