Patent US1114784A successfully refreshed from Google Patents.
Patent US4095192A successfully refreshed from Google Patents.
US4095192A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Random state generator
Assignee: United States Department of the Army
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Filing: 1968-03-25
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Granted: 1978-06-13
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Expires: 1988-03-25
Abstract
Abstract A random state generator to determine a random non-return to zero (NRZ) vage level at a particular clocked time with a noise generating diode or gas tube to provide a randomly fluctuating analogue voltage. The random voltages are amplified and applied to a transformer which acts as a gate for the random voltage. The secondary of the transformer has unidirectional conducting means connected to each of the ends and so poled that by applying a positive voltage pulse to a center tap on the secondary, the unidirectional current devices are forward biased and close the gate. The output of the transformer is connected to a bistable multivibrator which is thereby slaved to the random voltage polarity applied to its input during clock time.
Inventors
- 👤 Edward E. Atkinson
- 👤 William E. Queen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 03:35
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/84
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
199 words
A random state generator comprising: means for generating a randomly varying voltage, said voltage having positive- and negative-going variations; gating means for controlling the flow therethrough of said positive- and negative-going variations, including a transformer having a primary winding with two ends, a secondary winding with two ends, and a secondary center tap connection, said primary winding ends being connected to said randomly varying voltage means and said center tap connection being connected to said actuating means; a capacitor for tuning said transformer to a desired bandpass frequency and filtering a power spectrum generated by the randomly varying voltage means connecting said two said secondary winding ends, for minimizing distortion of said randomly varying voltage signal and yielding a ramdom gaussian distribution output across said secondary winding of the transformer; and two diodes each having an anode and a cathode, each anode being connected to one of said two secondary winding ends, each cathode being connected to said state generating means; actuating means for opening and closing said gating means; and means connected to the output of said gating means, having two stable states, and controlled by said positive- and negative-going variations for generating one of said two states.
Claim 2
Dependent Claim
199 words
A random state generator comprising: means for generating a randomly varying voltage, said voltage having positive- and negative-going variations; gating means for controlling the flow therethrough of said positive- and negative-going variations, including a transformer having a primary winding with two ends, a secondary winding with two ends, and a secondary center tap connection, said primary winding ends being connected to said randomly varying voltage means and said center tap connection being connected to said actuating means; a capacitor for tuning said transformer to a desired bandpass frequency and filtering a power spectrum generated by the randomly varying voltage means connecting said two said secondary winding ends, for minimizing distortion of said randomly varying voltage signal and yielding a ramdom gaussian distribution output across said secondary winding of the transformer; and two diodes each having an anode and a cathode, each anode being connected to one of said two secondary winding ends, each cathode being connected to said state generating means; actuating means for opening and closing said gating means; and means connected to the output of said gating means, having two stable states, and controlled by said positive- and negative-going variations for generating one of said two states.
Claim 3
Dependent Claim
198 words
A random state generator comprising: means for generating a randomly varying voltage, said voltage having positive- and negative-going variations; gating means for controlling the flow therethrough of said positive- and negative-going variations, including a transformer having a primary winding with two ends, a secondary winding with two ends and a secondary center tap connection, said primary winding ends being connected to said randomly varying voltage means and said center tap connection being connected to said actuating means; a means for tuning the transformer to a desired bandpass frequency and filtering a power spectrum generated by said randomly varying voltage means, connecting said two secondary winding ends, for minimizing distortion of said randomly varying voltage signal and yielding a random gaussian distribution output across said secondary winding of said transformer, and two diodes each having an anode and a cathode, each anode being connected to one of said two secondary winding ends, each cathode being connected to said state generating means; actuating means for opening and closing said gating means; and means connected to the output of said gating means, having two stable states, and controlled by said positive- and negative-going variations for generating one of said two states.
Claim 4
Dependent Claim
198 words
A random state generator comprising: means for generating a randomly varying voltage, said voltage having positive- and negative-going variations; gating means for controlling the flow therethrough of said positive- and negative-going variations, including a transformer having a primary winding with two ends, a secondary winding with two ends and a secondary center tap connection, said primary winding ends being connected to said randomly varying voltage means and said center tap connection being connected to said actuating means; a means for tuning the transformer to a desired bandpass frequency and filtering a power spectrum generated by said randomly varying voltage means, connecting said two secondary winding ends, for minimizing distortion of said randomly varying voltage signal and yielding a random gaussian distribution output across said secondary winding of said transformer, and two diodes each having an anode and a cathode, each anode being connected to one of said two secondary winding ends, each cathode being connected to said state generating means; actuating means for opening and closing said gating means; and means connected to the output of said gating means, having two stable states, and controlled by said positive- and negative-going variations for generating one of said two states.
Claim 5
Dependent Claim
111 words
A random state generator comprising: means for generating a randomly varying voltage, said voltage having positive- and negative-going variations; a network passive filtering means; gating means for controlling the flow therethrough of said positive- and negative-going variations; wherein said gating means includes a tunable transformer means, said tunable transformer means and said network passive filtering means minimizing distortion of said randomly varying voltage signal and yielding a random gaussian distribution of the voltage; actuating means for opening and closing said gating means; and means connected to the output of said gating means, having two stable states, and controlled by said positive- and negative-going variations for generating one of said two states.
Claim 6
Dependent Claim
111 words
A random state generator comprising: means for generating a randomly varying voltage, said voltage having positive- and negative-going variations; a network passive filtering means; gating means for controlling the flow therethrough of said positive- and negative-going variations; wherein said gating means includes a tunable transformer means, said tunable transformer means and said network passive filtering means minimizing distortion of said randomly varying voltage signal and yielding a random gaussian distribution of the voltage; actuating means for opening and closing said gating means; and means connected to the output of said gating means, having two stable states, and controlled by said positive- and negative-going variations for generating one of said two states.
Claim 7
Dependent Claim
105 words
A random state generator comprising: means for generating a randomly varying voltage, said voltage having positive- and negative-going variations; gating means for controlling the flow therethrough of said positive- and negative-going variations; actuating means for opening and closing said gating means, including a means for generating positive- and negative-going pulses, said gating means opening when a positive-going pulse is received from said actuating means and closing when a negative-going pulse is received from said actuating means, and means connected to the output of said gating means, having two stable states, and controlled by said positive- and negative-going variations for generating one of said two states.
Claim 8
Dependent Claim
105 words
A random state generator comprising: means for generating a randomly varying voltage, said voltage having positive- and negative-going variations; gating means for controlling the flow therethrough of said positive- and negative-going variations; actuating means for opening and closing said gating means, including a means for generating positive- and negative-going pulses, said gating means opening when a positive-going pulse is received from said actuating means and closing when a negative-going pulse is received from said actuating means, and means connected to the output of said gating means, having two stable states, and controlled by said positive- and negative-going variations for generating one of said two states.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-06-12 | 1981-12-12 | 1982-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-06-12 | 1985-12-12 | 1986-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-06-12 | 1989-12-12 | 1990-06-13 | $7700.00 | Window Closed / Lapsed |