Device for testing a network of components, in particular an electronic circuit
First Claim
1. An electronic device for testing a network of components, comprising(A) interface means comprising(Aa) means for defining sampling instants in a chosen time interval,(Ab) means for identifying at least one component of the network,(Ac) probe means for the acquisition of a physical value relating to the state of functioning of this component, and(Ad) means cooperating with the probe for providing a series of samples of this physical value within the chosen time interval;
- (B) a functional models memory contains component expressions relating to physical values concerning at least one particular kind of component;
(C) a values memory for storing several sample series of physical values corresponding to the same time interval but relating to different components of said network; and
(D) processing means connected to said values memory and to said functional models memory and to said interface means for effecting a processing procedure comprising an estimation of the physical values over said time interval, taking into account the expressions contained in said models memory and the acquired samples and their storage in the values memory, as well as tests on the values contained in the values memory,wherein said functional models memory further contains law-expressions representing general relationships between physical values;
wherein at least some of said acquired samples are stored in said functional models memory with precision brackets;
wherein the expressions for functional models stored in said functional models memory are at least in part provided with uncertainty brackets;
wherein any estimation is stored in said functional models memory with its estimated uncertainty bracket deriving from at least some of said uncertainty brackets and said precision brackets; and
wherein when said functional models memory contains, for at least some of the sampling instants, a first bracket and a second bracket of different origins for the same physical value established on the basis of the contribution of a primary set of components, these two brackets are compared, and the processor means is adapted for deducing therefrom first information regarding the functioning of the components of this primary set.
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Abstract
Device for testing a network of components, in particular an electronic circuit.
The respective potential differences between the terminals of the circuit to be tested are acquired during a chosen time interval and stored in a values memory. A memory contains predetermined functional models of electronic components. The processing means, connected to these memories, are capable of effecting a processing comprising the estimation, during said time interval, of physical values, notably of current-expressions, taking account of expressions contained in said acquired models and values, and storing them in the values memory as well as tests on the values contained in the values memory.
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Citations
57 Claims
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1. An electronic device for testing a network of components, comprising
(A) interface means comprising (Aa) means for defining sampling instants in a chosen time interval, (Ab) means for identifying at least one component of the network, (Ac) probe means for the acquisition of a physical value relating to the state of functioning of this component, and (Ad) means cooperating with the probe for providing a series of samples of this physical value within the chosen time interval; -
(B) a functional models memory contains component expressions relating to physical values concerning at least one particular kind of component; (C) a values memory for storing several sample series of physical values corresponding to the same time interval but relating to different components of said network; and (D) processing means connected to said values memory and to said functional models memory and to said interface means for effecting a processing procedure comprising an estimation of the physical values over said time interval, taking into account the expressions contained in said models memory and the acquired samples and their storage in the values memory, as well as tests on the values contained in the values memory, wherein said functional models memory further contains law-expressions representing general relationships between physical values; wherein at least some of said acquired samples are stored in said functional models memory with precision brackets; wherein the expressions for functional models stored in said functional models memory are at least in part provided with uncertainty brackets; wherein any estimation is stored in said functional models memory with its estimated uncertainty bracket deriving from at least some of said uncertainty brackets and said precision brackets; and wherein when said functional models memory contains, for at least some of the sampling instants, a first bracket and a second bracket of different origins for the same physical value established on the basis of the contribution of a primary set of components, these two brackets are compared, and the processor means is adapted for deducing therefrom first information regarding the functioning of the components of this primary set. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56)
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57. A method of testing a network of components using an electronic device, comprising the steps of:
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(Aa) defining sampling instants in a chosen time interval, (Ab) identifying at least one component of the network, (Ac) using probe means to acquire a physical value relating to the state of functioning of the one component, and (Ad) providing a series of samples of this physical value within the chosen time interval; (B) storing in a functional models memory component expressions relating to physical values concerning at least one particular kind of component; (C) storing in a values memory several sample series of physical values corresponding to the same time interval but relating to different components of said network; and (D) estimating the physical values over said time interval, taking into account the component expressions contained in said functional models memory and the acquired samples and their storage in the values memory, as well as tests on the values contained in the values memory, wherein said functional models memory further contains law-expressions representing general relationships between physical values, and the method further comprises the steps of; (E) storing at least some of said acquired samples in said functional models memory with precision brackets; (F) providing the expression stored in said functional models memory, at least in part, with uncertainty brackets; (G) storing any estimation in said functional models memory with its estimated uncertainty bracket deriving from at least some of said uncertainty brackets and said precision brackets; and (H) when said functional models memory contains, for at least some of the sampling instants, a first bracket and a second bracket of different origins for the same physical value established on the basis of the contribution of a primary set of components, comparing these two brackets, and deducing therefrom first information regarding the functioning of the components of this primary set.
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Specification