Patent US3575606A successfully refreshed from Google Patents.
US3575606A
Expired / Lapsed
US
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Controlled random pulse generator
Assignee: G B Instruments Inc
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Filing: 1969-04-24
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Granted: 1971-04-20
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Expires: 1989-04-24
Abstract
Abstract A controlled random pulse generator which includes a variablefrequency voltage-controlled oscillator, a gate circuit for sampling the output signal of a ratio oscillator to produce a random amplitude voltage for controlling the pulse periodicity of the voltage-controlled oscillator. Circuit means are provided for controlling the minimum and maximum periods of the random output pulses.
Inventors
- 👤 Robert E Bledsoe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:29
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/84
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
122 words
Apparatus for generating a sequence of electrical pulses wherein each successive pulse randomly occurs within predetermined minimum and maximum time periods following the occurrence of the immediately preceding pulse, said apparatus comprising: a. voltage-controlled oscillator means for generating electrical output pulses, said oscillator having a control input terminal for receiving a varying amplitude control voltage for varying the time periodicity of said output pulses; b. separate oscillator means for periodically generating a varying amplitude ratio control voltage; c. circuit means for randomly sampling said ratio control voltage including a gate actuated by said output pulses to produce a random amplitude control voltage; and d. circuit means for connecting said random amplitude control voltage to the control input terminal of said voltagecontrolled oscillator.
Claim 2
Dependent Claim
122 words
Apparatus for generating a sequence of electrical pulses wherein each successive pulse randomly occurs within predetermined minimum and maximum time periods following the occurrence of the immediately preceding pulse, said apparatus comprising: a. voltage-controlled oscillator means for generating electrical output pulses, said oscillator having a control input terminal for receiving a varying amplitude control voltage for varying the time periodicity of said output pulses; b. separate oscillator means for periodically generating a varying amplitude ratio control voltage; c. circuit means for randomly sampling said ratio control voltage including a gate actuated by said output pulses to produce a random amplitude control voltage; and d. circuit means for connecting said random amplitude control voltage to the control input terminal of said voltagecontrolled oscillator.
Claim 3
Dependent Claim
137 words
Apparatus for generating a sequence of electrical pulses wherein each successive pulse randomly occurs within predetermined minimum and maximum time periods following the occurrence of the immediately preceding pulse, said apparatus comprising: a. voltage-controlled oscillator means for generating electrical output pulses, said oscillator having a control input terminal for receiving a varying amplitude control voltage for varying the time periodicity of said output pulses; b. separate oscillator means for periodically generating a varying amplitude ratio control voltage; c. circuit means for randomly sampling said ratio control voltage including gate means actuated by said output pulses to produce a random amplitude control voltage with circuit means for holding the control voltage for the time period between successive pulses; and d. circuit means for connecting said random amplitude control voltage to the control input terminal of said voltage-controlled oscillator.
Claim 4
Dependent Claim
137 words
Apparatus for generating a sequence of electrical pulses wherein each successive pulse randomly occurs within predetermined minimum and maximum time periods following the occurrence of the immediately preceding pulse, said apparatus comprising: a. voltage-controlled oscillator means for generating electrical output pulses, said oscillator having a control input terminal for receiving a varying amplitude control voltage for varying the time periodicity of said output pulses; b. separate oscillator means for periodically generating a varying amplitude ratio control voltage; c. circuit means for randomly sampling said ratio control voltage including gate means actuated by said output pulses to produce a random amplitude control voltage with circuit means for holding the control voltage for the time period between successive pulses; and d. circuit means for connecting said random amplitude control voltage to the control input terminal of said voltage-controlled oscillator.
Claim 5
Dependent Claim
28 words
Apparatus in accordance with claim 1 characterized in that adjustable means are provided for controlling the peak amplitude of the control voltage signal generated by said ratio oscillator.
Claim 6
Dependent Claim
30 words
Apparatus in accordance with claim 1 characterized in that adjustable means independent of tHe voltage control input terminal are provided for controlling the pulse repetition period of the voltage-controlled oscillator.
Claim 7
Dependent Claim
28 words
Apparatus in accordance with claim 2 characterized in that adjustable means are provided for controlling the peak amplitude of the control voltage signal generated by said ratio oscillator.
Claim 8
Dependent Claim
30 words
Apparatus in accordance with claim 2 characterized in that adjustable means independent of the voltage control input terminal are provided for controlling the pulse repetition period of the voltage-controlled oscillator.
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) | 1974-04-19 | 1974-10-19 | 1975-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-04-19 | 1978-10-19 | 1979-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-04-19 | 1982-10-19 | 1983-04-20 | $7700.00 | Window Closed / Lapsed |