Systems and methods for detecting interference in an integrated circuit
First Claim
Patent Images
1. An integrated circuit comprising:
- a sensing arrangement configured to sense an electromagnetic interference signal;
an interference detection module capacitively coupled to the sensing arrangement, wherein the interference detection module is configured to detect when a power level associated with the electromagnetic interference signal is greater than a first threshold value; and
a semiconductor substrate, wherein the sensing arrangement and the interference detection module are formed on the semiconductor substrate and encapsulated in a single device package.
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Abstract
Apparatus, systems and methods are provided for protecting a processing system from electromagnetic interference. An integrated circuit comprises a sensing arrangement configured to sense an interference signal and an interference detection module coupled to the sensing arrangement. The interference detection module is configured to detect when a power level associated with the interference signal is greater than a threshold value. In one embodiment, the interference detection module generates an interrupt for a processing system when the power level associated with the interference signal is greater than the threshold value.
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Citations
19 Claims
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1. An integrated circuit comprising:
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a sensing arrangement configured to sense an electromagnetic interference signal; an interference detection module capacitively coupled to the sensing arrangement, wherein the interference detection module is configured to detect when a power level associated with the electromagnetic interference signal is greater than a first threshold value; and a semiconductor substrate, wherein the sensing arrangement and the interference detection module are formed on the semiconductor substrate and encapsulated in a single device package. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An integrated circuit comprising:
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a sensing arrangement configured to sense an electromagnetic interference signal; and an interference detection module coupled to the sensing arrangement, wherein the interference detection module is configured to detect when a power level associated with the electromagnetic interference signal is greater than a first threshold value, wherein the interference detection module comprises; comparison circuitry coupled to the sensing arrangement, the comparison circuitry being configured to detect when the power level associated with the electromagnetic interference signal is greater than the first threshold value; and a filtering arrangement coupled to the comparison circuitry, the filtering arrangement being configured to indicate when the power level associated with the electromagnetic interference signal is greater than the first threshold value for a predetermined amount of time.
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10. An integrated circuit comprising:
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a sensing arrangement configured to sense an electromagnetic interference signal; an interference detection module coupled to the sensing arrangement, wherein the interference detection module is configured to detect when a power level associated with the electromagnetic interference signal is greater than a first threshold value; analog circuitry having a bias point, the bias point controlling an operating characteristic of the analog circuitry; and a voltage regulator coupled to the analog circuitry and the interference detection module, wherein the voltage regulator is configured to adjust the bias point of the analog circuitry when the detected power level of the electromagnetic interference signal is greater than the first threshold value.
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11. An integrated circuit comprising:
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a sensing arrangement configured to sense an electromagnetic interference signal; an interference detection module coupled to the sensing arrangement, wherein the interference detection module is configured to detect when a power level associated with the electromagnetic interference signal is greater than a first threshold value; and a processing system coupled to the interference detection module, wherein; the interference detection module is configured to generate an interrupt for the processing system when the power level associated with the electromagnetic interference signal is greater than the first threshold value; and the processing system is configured to take remedial action in response to the interrupt.
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12. A method for providing protection from electromagnetic interference in an integrated circuit, the method comprising:
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sensing electromagnetic interference within the integrated circuit, resulting in a sensed electromagnetic interference signal; detecting an interference event based on a power level associated with the sensed electromagnetic interference signal by; comparing the power level of the sensed electromagnetic interference signal to a first threshold value, and identifying the interference event when the power level exceeds the first threshold value; and taking remedial action in response to the interference event. - View Dependent Claims (13, 14, 15)
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16. An interference protection system for use with an integrated circuit package, the interference protection system comprising:
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a processing system contained in the integrated circuit package; a sensing arrangement configured to obtain an interference signal in response to electromagnetic interference within the integrated circuit package; and an interference detection module coupled to the sensing arrangement and the processing system, wherein the interference detection module is configured to; identify an interference event based on the interference signal; and generate an interrupt signal for the processing system in response to the interference event, the processing system being configured to take remedial action in response to the interrupt signal. - View Dependent Claims (17, 18)
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19. An integrated circuit comprising:
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a processing system; a sensing arrangement configured to sense an interference signal; and an interference detection module coupled to the sensing arrangement and the processing system, wherein; the interference detection module is configured to; detect when a power level associated with the interference signal is greater than a first threshold value; and generate an interrupt for the processing system when the power level associated with the interference signal is greater than the first threshold value; and the processing system is configured to take remedial action in response to the interrupt.
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Specification