US3573451A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Function generator for producing square and ramp wave pulses
Assignee: Monsanto Co
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Filing: 1969-08-25
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Granted: 1971-04-06
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Expires: 1989-08-25
Abstract
Abstract A rapid process simulator for determining both static and the dynamic characteristics which are unknown in a relatively stable process. The simulator includes a pulse generator for producing a perturbating pulse which is applied to the process. The perturbating pulse produces an output signal which can be expressed in the form of a polynomial. The process is compared in the simulator with a model of orthogonal functions which are capable of being normalized to an orthonormal condition. The model is formulated with the idea of choosing a pulse input in such a way as to facilitate the construction of the system. An output signal is also produced in the model which is in turn compared with the output signal from the process in order to achieve an error signal. This signal is squared in the simulator and integrated to determine the characteristics of the system. The simulator includes a transport delay device for delaying the perturbating pulse to the model with respect to the process, so that the output of the process and the model will begin in coincident times. In addition, the simulator is provided with a generator to produce oscillatory transients on a model of the signal to match transient on the process signal.
Inventors
- 👤 Robert A Walsh
- 👤 Louis H Fricke Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 01:25
CPC Classifications
G; G06; G06G; G06G7/00; G06G7/12; G06G7/20; G06G7/48; G06G7/62; G06G7/623; G06G7/66
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
129 words
A pulse generator for producing square and ramp wave pulses, said generator comprising means for receiving a triangular wave input signal, first and second relay comparator circuits operatively connected to said last named means for receiving triangular wave signals, first energizable means in said first circuit operating a plurality of first contacts for producing a square wave, second energizable means in said second circuit operating a plurality of second contacts for producing a ramp wave, pulse selecting circuit means operatively connected to each of said plurality of first and second contacts, and switch means for causing said selector circuit to function as an inverter circuit to produce a square wave output and for causing said selector circuit to function as an integrator circuit to produce a ramp wave output.
Claim 2
Dependent Claim
129 words
A pulse generator for producing square and ramp wave pulses, said generator comprising means for receiving a triangular wave input signal, first and second relay comparator circuits operatively connected to said last named means for receiving triangular wave signals, first energizable means in said first circuit operating a plurality of first contacts for producing a square wave, second energizable means in said second circuit operating a plurality of second contacts for producing a ramp wave, pulse selecting circuit means operatively connected to each of said plurality of first and second contacts, and switch means for causing said selector circuit to function as an inverter circuit to produce a square wave output and for causing said selector circuit to function as an integrator circuit to produce a ramp wave output.
Claim 3
Dependent Claim
46 words
The pulse generator of claim 1 for producing square and ramp wave pulses further characterized in that potentiometer means is operatively connected to each of said relay comparator circuits for adjusting the commencement time of said pulses and the duration time of each of said pulses.
Claim 4
Dependent Claim
202 words
A pulse generator for producing square and ramp wave pulses, said generator comprising wave producing means for providing a triangular wave input signal, first and second relay comparator circuits operatively connected to said last-named means for receiving triangular wave signals, first energizable means in said first circuit operating a plurality of first contacts for producing a square wave, second energizable means in said second circuit operating a plurality of second contacts for producing a ramp wave, first pulse selecting circuit means operatively connected to each of said plurality of first and second contacts, third and fourth relay comparator circuits operatively connected to said wave producing means for receiving triangular wave signals, third energizable means in said third circuit operating a plurality of third contacts for producing a delay square wave, fourth energizable means in said fourth circuit operating a plurality of fourth contacts for producing a delay ramp wave, second pulse selecting circuit means operatively connected to each of said plurality of third and fourth contacts, and switch means for causing said selector circuits to function as inverter circuits to produce a square wave output and for causing said selector circuits to function as integrator circuits to produce a ramp wave output.
Claim 5
Dependent Claim
202 words
A pulse generator for producing square and ramp wave pulses, said generator comprising wave producing means for providing a triangular wave input signal, first and second relay comparator circuits operatively connected to said last-named means for receiving triangular wave signals, first energizable means in said first circuit operating a plurality of first contacts for producing a square wave, second energizable means in said second circuit operating a plurality of second contacts for producing a ramp wave, first pulse selecting circuit means operatively connected to each of said plurality of first and second contacts, third and fourth relay comparator circuits operatively connected to said wave producing means for receiving triangular wave signals, third energizable means in said third circuit operating a plurality of third contacts for producing a delay square wave, fourth energizable means in said fourth circuit operating a plurality of fourth contacts for producing a delay ramp wave, second pulse selecting circuit means operatively connected to each of said plurality of third and fourth contacts, and switch means for causing said selector circuits to function as inverter circuits to produce a square wave output and for causing said selector circuits to function as integrator circuits to produce a ramp wave output.
Claim 6
Dependent Claim
46 words
The pulse generator for producing square and ramp wave pulses of claim 1 further characterized in that means is provided for adjusting the transport delay time that said third and fourth selector circuits delay their output signal with respect to said first and second selector circuits.
References Cited (Backward Citations)
US3255416A
Cited
US3500445A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-04-05 | 1974-10-05 | 1975-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-04-05 | 1978-10-05 | 1979-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-04-05 | 1982-10-05 | 1983-04-06 | $7700.00 | Window Closed / Lapsed |