US3694758A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Frequency responsive multi-phase pulse generator
Assignee: Boeing North American Inc
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Filing: 1971-04-30
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Granted: 1972-09-26
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Expires: 1991-04-30
Abstract
Abstract A frequency responsive multi-phase pulse generator for providing a plurality of phased output pulses at several output terminals is disclosed. The time of occurrence of the output pulses is controlled with respect to the duration of input clock signal periods and is automatically varied in proportion to changes in the input clock signal frequency. The frequency of the clock signals is detected by a transition detector circuit and an electric tachometer. A delay pulsing circuit provides delay pulses having a pulse width that is a function of the frequency of the clock signal. These delay pulses, along with the input clock signals are applied to control the operation of a bistable circuit which operates to provide delayed output pulses at a pair of output terminals thereof. Output pulses are also provided by the transition detector circuit. The temporal relationships of these output pulses, with respect to each other, will be proportionally varied in accordance with changes in the clock signal frequency.
Inventors
- 👤 George A Dyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:18
CPC Classifications
H; H03; H03K; H03K5/00; H03K5/15; H03K5/15013; H03K5/1502; H03K5/153
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
147 words
A generator adapted to provide multiple output pulses at multiple terminals and at selected time intervals within a predetermined time period corresponding to cycles of an input signal, the time intervals being varied in direct proportion to changes in the predetermined period, said generator comprising, detector means connected to receive the input signal and including means to generate an output pulse for each transition of the input signal from one level to another, control circuit means receiving the output pulse from said detector means and delivering a pulsed signal in which the width of the pulses comprising the signal vary as a direct inverse function of the input signal frequency, and bistable means receiving the input signal and the pulses from said control circuit means, said bistable means acting to release an input pulse only on a time controlled basis as determined by said control circuit means.
Claim 2
Dependent Claim
147 words
A generator adapted to provide multiple output pulses at multiple terminals and at selected time intervals within a predetermined time period corresponding to cycles of an input signal, the time intervals being varied in direct proportion to changes in the predetermined period, said generator comprising, detector means connected to receive the input signal and including means to generate an output pulse for each transition of the input signal from one level to another, control circuit means receiving the output pulse from said detector means and delivering a pulsed signal in which the width of the pulses comprising the signal vary as a direct inverse function of the input signal frequency, and bistable means receiving the input signal and the pulses from said control circuit means, said bistable means acting to release an input pulse only on a time controlled basis as determined by said control circuit means.
Claim 3
Dependent Claim
79 words
An apparatus as defined in claim 1 wherein said control circuit means comprises means receiving the output pulse from said detector means and provides a signal having a voltage level that is a direct function of the input signal frequency, and means responsive to the signal from the means receiving the output pulse from said detector means to produce pulses having widths that vary as a direct function of the voltage level produced by said output pulse receiving means.
Claim 4
Dependent Claim
44 words
An apparatus as defined in claim 2 wherein said control circuit means includes a monostable multivibrator having the transition output pulses applied as inputs thereto, and wherein said means for varying the width of the pulsed signal is a voltage dependent variable resistance element.
Claim 5
Dependent Claim
45 words
The apparatus defined by claim 2 wherein said pulsing means is a monostable multivibrator having said transition output pulses applied as inputs thereto, and said control means is a voltage dependent variable resistance element for varying the width of pulses provided by said monostable multivibrator.
Claim 6
Dependent Claim
32 words
The apparatus defined by claim 1 wherein said detector means includes first and second pulsing circuits respectively adapted to provide transition output pulses in response to alternate transitions of said input signal.
Claim 7
Dependent Claim
26 words
The apparatus defined by claim 5 wherein said first and second pulsing circuits include monostable multivibrators, one of which is adapted to receive inverted input signals.
Claim 8
Dependent Claim
46 words
The apparatus defined by claim 1 wherein said bistable means includes: a bistable device adapted to change states in response to said control circuit pulses, a pair of state signals being provided; and first and second pulsing means responsive to the application of said state signals.
Claim 9
Dependent Claim
40 words
The apparatus defined by claim 7 wherein said bistable device is a flip-flop having said input signal applied to the SET and RESET terminals thereof to have said flip-flop enabled to change states at each transition of said input signal.
Claim 10
Dependent Claim
137 words
A frequency responsive pulse generator of the type adapted to provide a plurality of output pulses at successive time intervals dependent on the frequency of an input clock signal having equal positive and negative half cycles, the generator comprising: detector means for detecting the transitions of said clock signal, first and second transition output pulses being provided in response thereto; control circuit means responsive to said transition output pulses, for providing a pulse during each half cycle of said clock signal, each said pulse having a pulse width varying inversely with the frequency of said clock signals; and bistable means responsive to said clock signals and said delay pulses for providing firsT and second output pulses which respectively succeed said first and second transition output pulses by time intervals determined by the pulse width of said signal.
Claim 11
Dependent Claim
137 words
A frequency responsive pulse generator of the type adapted to provide a plurality of output pulses at successive time intervals dependent on the frequency of an input clock signal having equal positive and negative half cycles, the generator comprising: detector means for detecting the transitions of said clock signal, first and second transition output pulses being provided in response thereto; control circuit means responsive to said transition output pulses, for providing a pulse during each half cycle of said clock signal, each said pulse having a pulse width varying inversely with the frequency of said clock signals; and bistable means responsive to said clock signals and said delay pulses for providing firsT and second output pulses which respectively succeed said first and second transition output pulses by time intervals determined by the pulse width of said signal.
Claim 12
Dependent Claim
67 words
The apparatus defined by claim 9 wherein said bistable means includes: a bistable device adapted to receive said clock signal at the input terminals thereof, said clock signals enabling said device to change states in response to any said pulses applied thereto said bistable device providing state signals corresponding to the state of said bistable device; means responsive to said state signals for providing said output pulses.
Claim 13
Dependent Claim
31 words
The apparatus defined by claim 10 wherein said bistable device is a flip-flop circuit having said clock applied to input terminals thereof, said state signals being provided at output terminals thereof.
Claim 14
Dependent Claim
26 words
The apparatus defined by claim 9 wherein said detector means includes pulsing devices adapted to provide said transition output pulses in response to said clock signals.
Claim 15
Dependent Claim
80 words
The apparatus defined by claim 9 wherein said control circuit means includes: a pulsing circuit for providing pulses having a predetermined pulse width in response to said transition output pulses; means for detecting the frequency of said clock signals, a voltage signal having a voltage level representative of said frequency being provided thereof; and pulse width control means for altering the width of said pulses in inverse proportion to changes in said frequency and in response to said voltage signal.
Claim 16
Dependent Claim
69 words
The apparatus defined by claim 13 wherein said bistable means includes: a bistable device adapted to receive said clock signal at the input terminals thereof, said clock signals enabling said device to change states in response to any said delay pulses applied thereto said bistable device providing state signals corresponding to the state of said bistable device; means responsive to said state signals for providing said delayed output pulses.
Claim 17
Dependent Claim
26 words
The apparatus defined by claim 14 wherein said detector means includes pulsing devices adapted to provide said transition output pulses in response to said clock signal.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-09-26 | 1976-03-27 | 1976-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-26 | 1980-03-27 | 1980-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-26 | 1984-03-27 | 1984-09-26 | $7700.00 | Window Closed / Lapsed |