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US3624497A
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Method and apparatus for measuring the slopes of electric pulses which may be accompanied by high-background noise
Assignee: Commissariat à l'Énergie Atomique et Aux Énergies Alternatives
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Filing: 1969-02-26
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Granted: 1971-11-30
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Expires: 1989-02-26
Abstract
Abstract In order to measure the slopes of pulses which make up a signal which may be accompanied by high-background noise, a sawtooth wave of slope is generated. The sawtooth wave is generated in synchronism with each pulse of the signal and the amplitude of each pulse is continuously divided by the amplitude of the sawtooth wave.
Inventors
- 👤 Jacques Max
- 👤 Francis Merdrignac
- 👤 Jules Ratahiry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 17:28
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/48; A61B5/4863; A61B5/24; A61B5/316; A61B5/398; G; G01; G01R; G01R19/00; G01R19/12; G01R29/00; G01R29/02; G01R29/027; G06; G06G; G06G7/00; G06G7/12; G06G7/18; A61B5/72; A61B5/7235; A61B5/7239
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
80 words
A method of measurement of the slope of electric pulses constituting a signal which may be accompanied by a high background noise, wherein said method comprises the steps of: generating a sawtooth wave having a known slope in snychronism with each of said pulses and of continuously dividing the amplitude of each of said pulses by the amplitude of the sawtooth wave, whereby a ratio signal, representative of the slope of each of said electric signals being measured, is obtained.
Claim 2
Independent Claim
80 words
A method of measurement of the slope of electric pulses constituting a signal which may be accompanied by a high background noise, wherein said method comprises the steps of: generating a sawtooth wave having a known slope in snychronism with each of said pulses and of continuously dividing the amplitude of each of said pulses by the amplitude of the sawtooth wave, whereby a ratio signal, representative of the slope of each of said electric signals being measured, is obtained.
Claim 3
Independent Claim
89 words
A device for measuring the slope of electric pulses constituting a signal which may be accompanied by a high background noise comprising a generator for producing sawtooth waves of constant and known slope, means for triggering said generator in response to a pulse whose slope is to be measured and an analog dividing circuit which receives the pulse to be measured and the sawtooth wave which is delivered from the generator, whereby a ratio signal, representative of the slope of each of said electric pulses being measured, is obtained.
Claim 4
Independent Claim
89 words
A device for measuring the slope of electric pulses constituting a signal which may be accompanied by a high background noise comprising a generator for producing sawtooth waves of constant and known slope, means for triggering said generator in response to a pulse whose slope is to be measured and an analog dividing circuit which receives the pulse to be measured and the sawtooth wave which is delivered from the generator, whereby a ratio signal, representative of the slope of each of said electric pulses being measured, is obtained.
Claim 5
Dependent Claim
51 words
A device in accordance with claim 2, wherein said device comprises a differentiating circuit to which said signal is applied, the output of said circuit being coupled to the control input of the sawtooth wave generator in order to release said generator in response to a transient portion of a pulse.
Claim 6
Dependent Claim
54 words
A device in accordance with claim 2 wherein said device comprises two separate differentiating circuits each responsive to one polarity of said pulses, the output of said circuits being coupled to the control input of the sawtooth wave generator in order to release said generator in response to a transient portion of a pulse.
Claim 7
Dependent Claim
61 words
A device in accordance with claim 4, wherein each differentiator is associated with a permission circuit for supplying an inhibition signal to the other differentiator for a predetermined time-duration after the emission by the first differentiator of a peak corresponding to said transient portion, said time-duration being shorter than the time interval which elapses between two pulse trains of opposite polarity.
Claim 8
Dependent Claim
34 words
A device in accordance with claim 2, wherein said device comprises a circuit disposed in the path of transmission of said pulses to said divider for zero resetting of the origin of the pulses.
Claim 9
Dependent Claim
30 words
A device in accordance with claim 2, wherein said device also comprises a circuit supplied by said divider for calculating the mean value of pulse slopes over a predetermined period.
Claim 10
Dependent Claim
22 words
A device in accordance with claim 7, wherein said device comprises a circuit for counting said pulses during said period of time.
Claim 11
Dependent Claim
65 words
A device in accordance with claim 8, wherein said circuit for calculating the mean value of pulse slopes comprises a shaping stage for generating in respect of each pulse a signal of fixed duration having an amplitude which is proportional to the slope, an integrator connected to the output of said shaping stage and a divider connected to the integrator and to the counting circuit.
Claim 12
Independent Claim
135 words
A method of measuring the sloPes of a train of pulses within a signal, each of said pulses being comprised of a first portion having a substantially constant slope and a second portion, the absolute value of the slope of said second portion of each of said signals being smaller than the absolute value of the slope of said first portion, comprising the steps of: differentiating each of said pulses: generating a sawtooth signal, in synchronism with each of said pulses, the period of each sawtooth increment corresponding to the period of each of said first and second portions of each of said pulses; and continuously dividing the amplitudes of each of said pulses by the amplitude of said sawtooth signal, to provide a ratio signal representative of the slopes of said train of pulses.
Claim 13
Independent Claim
135 words
A method of measuring the sloPes of a train of pulses within a signal, each of said pulses being comprised of a first portion having a substantially constant slope and a second portion, the absolute value of the slope of said second portion of each of said signals being smaller than the absolute value of the slope of said first portion, comprising the steps of: differentiating each of said pulses: generating a sawtooth signal, in synchronism with each of said pulses, the period of each sawtooth increment corresponding to the period of each of said first and second portions of each of said pulses; and continuously dividing the amplitudes of each of said pulses by the amplitude of said sawtooth signal, to provide a ratio signal representative of the slopes of said train of pulses.
Claim 14
Dependent Claim
72 words
A method in accordance with claim 10, further including the steps of: transforming said train of pulses into first and second respective sequences of pulses of opposite polarity with intervals of time between pulse in each sequence during which no pulses occur; and delaying one of said sequences of pulses with respect to the other sequence for a period of time shorter than the duration of each pulse in the other sequence.
References Cited (Backward Citations)
US3024999A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-11-29 | 1975-05-31 | 1975-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-29 | 1979-05-31 | 1979-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-29 | 1983-05-31 | 1983-11-30 | $7700.00 | Window Closed / Lapsed |