Patent US2914249A successfully refreshed from Google Patents.
Patent US3845285A successfully refreshed from Google Patents.
US3845285A
Expired / Lapsed
US
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Automatic functional margin plotter
Assignee: Bull SAS
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Filing: 1973-02-28
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Granted: 1974-10-29
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Expires: 1993-02-28
Abstract
Abstract An automatic system operation margin plotter using two parameters is provided which is applicable to the operational margins of an electronic memory using two power supply sources. The device is made up of a logic circuit which computes the values of the various pairs of parameters to be applied to the system in order to test its operation and an operation detector connected to a margin overstep detector for point-to-point scanning of vectors contained in lines evenly distributed within an area representing the step-by-step variations between the limit values (XmYm) and (XM, YM) of the parameters. Each vector oversteps the assumed margin only once in the sense opposite to that of the previously scanned vector and its edge is located at the first point scanned after each overstepping of the margin. A circuit controlling the margin plotting element connects, in succession, the end of a vector located in the operating area with the last point scanned on the next vector located in this same area.
Inventors
- 👤 J Leroy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:49
CPC Classifications
G; G06; G06K; G06K15/00; G06K15/22
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
285 words
An automatic plotter of the functional margin of a system dependent on two parameters, involving the point-by-point scanning of straight lines evenly distributed within an area representing step-by-step variations of the parameters between their limit values (Xm, Ym) and (XM, YM) and comprising the following elements: 1. a computing circuit for step-by-step calculation of all values of X and Y, taken from inbetween the limit values and computed along said these straight lines, scanned one after the other in the same direction, their two outputs being linked to 2. a test circuit of the system operating for each pair of the calculated values (X, Y), 3. an operation detector of the system in the output of the test circuit, 4. a control circuit of an element plotter, characterized in that: A. The computing circuit is designed so as to restrict a vector to the scanning amplitude along a straight line, the latter overstepping the presumed margin only once in the opposite direction of the previously scanned margin, B. an additional detector circuit signals the overstepping of the margin during the scanning, C. all elements are connected in the following fashion: a. the output of the detector (7) is linked, with an input of the computing circuit (1) and with an input of the detector (10), b. an output of the circuit (1) is tied to an input of the detector (10), c. the detector (10) is linked to the control circuit (16) of the element plotter (17) and to the computing circuit (1), d. two outputs of the control circuit (16) are linked with the element plotter (17) by means of a correction circuit (22) controlled by the detector (10) and the computing circuit (1).
Claim 2
Dependent Claim
285 words
An automatic plotter of the functional margin of a system dependent on two parameters, involving the point-by-point scanning of straight lines evenly distributed within an area representing step-by-step variations of the parameters between their limit values (Xm, Ym) and (XM, YM) and comprising the following elements: 1. a computing circuit for step-by-step calculation of all values of X and Y, taken from inbetween the limit values and computed along said these straight lines, scanned one after the other in the same direction, their two outputs being linked to 2. a test circuit of the system operating for each pair of the calculated values (X, Y), 3. an operation detector of the system in the output of the test circuit, 4. a control circuit of an element plotter, characterized in that: A. The computing circuit is designed so as to restrict a vector to the scanning amplitude along a straight line, the latter overstepping the presumed margin only once in the opposite direction of the previously scanned margin, B. an additional detector circuit signals the overstepping of the margin during the scanning, C. all elements are connected in the following fashion: a. the output of the detector (7) is linked, with an input of the computing circuit (1) and with an input of the detector (10), b. an output of the circuit (1) is tied to an input of the detector (10), c. the detector (10) is linked to the control circuit (16) of the element plotter (17) and to the computing circuit (1), d. two outputs of the control circuit (16) are linked with the element plotter (17) by means of a correction circuit (22) controlled by the detector (10) and the computing circuit (1).
Claim 3
Dependent Claim
16 words
a test circuit of the system operating for each pair of the calculated values (X, Y),
Claim 4
Dependent Claim
16 words
a test circuit of the system operating for each pair of the calculated values (X, Y),
Claim 5
Dependent Claim
135 words
An automatic plotter according to claim 1, characterized in that the computing circuit 1 includes means of determining the direction of a scanning vector as a function of the position of its origin in (or outside) the operation zone, tied by two inputs to the detectors 7 and 10 and by two outputs to means for computing the values (X, Y), associated with the end of this vector, these computing means being controlled in turn by detector 10 for the computation of the values (X, Y), associated with the origin of the vector following the scanning, and in that the plotter 17 is controlled only for the pairs (X, Y), associated with the ends of the vectors positioned inside the operation zone, and with the scanning points preceding the vector ends located within this zone.
Claim 6
Dependent Claim
13 words
an operation detector of the system in the output of the test circuit,
Claim 7
Dependent Claim
13 words
an operation detector of the system in the output of the test circuit,
Claim 8
Dependent Claim
73 words
An automatic plotter according to claim 2, characterized in that the means for determining the direction of a scanning vector include a flip-flop storage of the position of the vector origin to be considered in (or outside) the operation zone whose output connects the computing circuit with one of the two inputs of the detector 10 to define, as the vector end during the scanning, the first point reached outside the scanning zone.
Claim 9
Dependent Claim
51 words
An automatic plotter according to claim 1, characterized in that the computing circuit permits the calculation of each parameter according to the vectors of the lines parallel to a given limit line of the operation zone to be determined, starting off from a point of that line outside the presumed margin.
Claim 10
Dependent Claim
165 words
a control circuit of an element plotter, characterized in that: A. The computing circuit is designed so as to restrict a vector to the scanning amplitude along a straight line, the latter overstepping the presumed margin only once in the opposite direction of the previously scanned margin, B. an additional detector circuit signals the overstepping of the margin during the scanning, C. all elements are connected in the following fashion: a. the output of the detector (7) is linked, with an input of the computing circuit (1) and with an input of the detector (10), b. an output of the circuit (1) is tied to an input of the detector (10), c. the detector (10) is linked to the control circuit (16) of the element plotter (17) and to the computing circuit (1), d. two outputs of the control circuit (16) are linked with the element plotter (17) by means of a correction circuit (22) controlled by the detector (10) and the computing circuit (1).
Claim 11
Dependent Claim
165 words
a control circuit of an element plotter, characterized in that: A. The computing circuit is designed so as to restrict a vector to the scanning amplitude along a straight line, the latter overstepping the presumed margin only once in the opposite direction of the previously scanned margin, B. an additional detector circuit signals the overstepping of the margin during the scanning, C. all elements are connected in the following fashion: a. the output of the detector (7) is linked, with an input of the computing circuit (1) and with an input of the detector (10), b. an output of the circuit (1) is tied to an input of the detector (10), c. the detector (10) is linked to the control circuit (16) of the element plotter (17) and to the computing circuit (1), d. two outputs of the control circuit (16) are linked with the element plotter (17) by means of a correction circuit (22) controlled by the detector (10) and the computing circuit (1).
Claim 12
Dependent Claim
39 words
An automatic plotter according to claim 1, characterized in that the computing circuit permits the calculation of each parameter starting off from a point within the presumed margin according to the vectors on the lines converging at this point.
Claim 13
Dependent Claim
172 words
An automatic plotter according to claim 2 characterized in that the means of computing of the computing circuit 1 consist of two counters of X and Y with two inputs for the addition of a step and for the subtraction of a step, respectively, to the last calculated value of each parameter according to the direction of the vector in the course of the scanning, and of two OR gates before one of the two inputs of each counter, for the addition of a step to the last calculated value of one of the parameters and for the subtraction of a step from the last calculated value of the other parameter, an input of each gate being linked to a control circuit for advancement of a step to pass from the end of one vector to the origin of the next, this circuit being controlled, partly, by the detector 10 and, partly, by an output of the counter of one of the parameters when the limit value of this parameter is reached.
Claim 14
Dependent Claim
43 words
An automatic plotter according to claim 1, characterized in that the correction circuit 22 makes possible the addition of a step to, and subtraction of a step from the values, respectively, associated with the end of a vector located outside the operational zone.
Claim 15
Dependent Claim
116 words
An automatic plotter according to claim 2, characterized in that the means of calculation of the control circuit 1 include two systematic counters of the X - Xm and Y - Ym values associated with the different lines successively scanned, one counter of a factor Rho as a function of the point under consideration on the vector in the course of the scanning, controlled by the means for determining the direction of this vector, and a coder of the values X - Xm and Y - Ym by the factor Rho whose two outputs are tied to the control circuit 16 by means of an adder circuit producing the values X and Y to be calculated.
Claim 16
Dependent Claim
140 words
An automatic plotter of the functional margin of a system defined by orthogonally related parameters X and Y and which margin separates contiguous zones A and B, which comprises: computing circuit means for scanning in successive increments back and forth across said margin from one zone to the other along straight lines offset from each other in the direction of one of said parameters; detecting means for detecting when scanning along said straight lines passes from zone B to zone A and vice versa and controlling said computing circuit means to assure that each such straight line passes from one zone to the other; and control circuit means connected to said computing circuit means and to said detecting means for controlling plotting between end points of said straight lines to lie wholly within one of said zones A and B.
Claim 17
Dependent Claim
140 words
An automatic plotter of the functional margin of a system defined by orthogonally related parameters X and Y and which margin separates contiguous zones A and B, which comprises: computing circuit means for scanning in successive increments back and forth across said margin from one zone to the other along straight lines offset from each other in the direction of one of said parameters; detecting means for detecting when scanning along said straight lines passes from zone B to zone A and vice versa and controlling said computing circuit means to assure that each such straight line passes from one zone to the other; and control circuit means connected to said computing circuit means and to said detecting means for controlling plotting between end points of said straight lines to lie wholly within one of said zones A and B.
Claim 18
Dependent Claim
59 words
An automatic plotter as defined in claim 9 wherein the end points of said straight lines are xi, yi - Py and xi - Px, yi so long as such end points lie on opposite sides of said margin, where Px is the spacing between successive values of X and Py is the spacing between successive values of Y.
Claim 19
Dependent Claim
86 words
An automatic plotter as defined in claim 9 wherein the end points of said straight lines are xm + iPx, ym + j Py i/k and xm + (i-1) Px, Ym + j Py i-1/k in one direction and xm + i Px, Ym + j Py j/k and xm + (i + 1) Px, Ym + j Py i + 1/k in the opposite direction where Px is the spacing between successive values of X and Py is the spacing between successive values of Y.
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) | 1977-10-28 | 1978-04-29 | 1978-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-28 | 1982-04-29 | 1982-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-28 | 1986-04-29 | 1986-10-29 | $7700.00 | Window Closed / Lapsed |