Patent US3622905A successfully refreshed from Google Patents.
US3622905A
Expired / Lapsed
US
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Random pulse generator
Assignee: United States Department of the Army
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Filing: 1952-09-04
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Granted: 1971-11-23
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Expires: 1972-09-04
Abstract
Abstract 1. A random pulse generator comprising a blocking oscillator having an input circuit and output circuit, a random frequency noise source connected to said input circuit for triggering said oscillator, integrating means connected to said output circuit for generating a direct current voltage proportional to the average repetition frequency of the output pulses of said oscillator, and means for coupling said direct current voltage to said input circuit whereby the period of said average repetition frequency is maintained substantially constant.
Inventors
- 👤 Paul Merrill Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:17
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/84
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
79 words
A random pulse generator comprising a blocking oscillator having an input circuit and output circuit, a random frequency noise source connected to said input circuit for triggering said oscillator, integrating means connected to said output circuit for generating a direct current voltage proportional to the average repetition frequency of the output pulses of said oscillator, and means for coupling said direct current voltage to said input circuit whereby the period of said average repetition frequency is maintained substantially constant.
Claim 2
Dependent Claim
79 words
A random pulse generator comprising a blocking oscillator having an input circuit and output circuit, a random frequency noise source connected to said input circuit for triggering said oscillator, integrating means connected to said output circuit for generating a direct current voltage proportional to the average repetition frequency of the output pulses of said oscillator, and means for coupling said direct current voltage to said input circuit whereby the period of said average repetition frequency is maintained substantially constant.
Claim 3
Dependent Claim
17 words
The device set forth in claim 1 wherein said last mentioned means comprises a direct current amplifier.
Claim 4
Dependent Claim
88 words
In a jamming system, means for stabilizing the period of the average randomized look-through frequency, said means comprising a blocking oscillator having at least a grid, plate and cathode, a random frequency noise source having its output coupled to said grid for triggering said oscillator, an integrating circuit responsive to the output pulses of said oscillator for producing a direct current voltage proportional to the average repetition frequency of said output pulses, and a direct current amplifier responsive to said direct current voltage and connected to said grid.
Claim 5
Dependent Claim
88 words
In a jamming system, means for stabilizing the period of the average randomized look-through frequency, said means comprising a blocking oscillator having at least a grid, plate and cathode, a random frequency noise source having its output coupled to said grid for triggering said oscillator, an integrating circuit responsive to the output pulses of said oscillator for producing a direct current voltage proportional to the average repetition frequency of said output pulses, and a direct current amplifier responsive to said direct current voltage and connected to said grid.
Claim 6
Dependent Claim
51 words
A random pulse generator comprising a blocking oscillator having an Input circuit and output circuit, a noise source connected to said input circuit, a pulse-integrating circuit connected to said output circuit, and a direct current amplifier responsive to the output of said pulse generating circuit and connected to said input circuit.
Claim 7
Dependent Claim
51 words
A random pulse generator comprising a blocking oscillator having an Input circuit and output circuit, a noise source connected to said input circuit, a pulse-integrating circuit connected to said output circuit, and a direct current amplifier responsive to the output of said pulse generating circuit and connected to said input circuit.
References Cited (Backward Citations)
US2633555A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-11-22 | 1975-05-24 | 1975-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-22 | 1979-05-24 | 1979-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-22 | 1983-05-24 | 1983-11-23 | $7700.00 | Window Closed / Lapsed |