System and method for device state determination

Patent metadata

Field	Value
Publication number	US-11378608-B2
Application number	US-201916516317-A
Country	US
Kind code	B2
Filing date	Jul 19, 2019
Priority date	Jul 19, 2019
Publication date	Jul 5, 2022
Grant date	Jul 5, 2022

Abstract

A data processing device includes an internal volume for housing devices and an isolation test system. The isolation test system makes a determination that an electromagnetic interference suppression state of the data processing device is to be determined; in response to the determination: suppresses generation of electromagnetic radiation by the devices; while the generation of the electromagnetic radiation by the devices is suppressed: identifies a quantity of second electromagnetic radiation that propagated through a boundary of the internal volume; makes a second determination, based at least in part on the quantity, that the electromagnetic interference suppression state of the data processing device is an electromagnetic interference suppression compromised state; and initiates performance of an action set to remediate the electromagnetic interference suppression compromised state of the data processing device based on the second determination.

First claim

What is claimed is:

1. A data processing device, comprising:
an internal volume for housing devices; and
an isolation test system programmed to:
make a determination that an electromagnetic interference suppression state of the data processing device is to be determined;
in response to the determination:
suppress generation of electromagnetic radiation by the devices;
while the generation of the electromagnetic radiation by the devices is suppressed:
identify a quantity of second electromagnetic radiation that propagated through a boundary of the internal volume;
make a second determination, based at least in part on the quantity, that the electromagnetic interference suppression state of the data processing device is an electromagnetic interference suppression compromised state; and
initiate performance of an action set to remediate the electromagnetic interference suppression compromised state of the data processing device based on the second determination.

2. The data processing device of claim 1 , wherein the isolation test system comprises:
a first portion disposed outside of the internal volume; and
a second portion disposed inside of the internal volume.

3. The data processing device of claim 2 , wherein the second electromagnetic radiation is generated by the first portion.

4. The data processing device of claim 2 , wherein the second electromagnetic radiation is generated by the second portion.

5. The data processing device of claim 2 , wherein the second electromagnetic radiation is generated by the first portion and the second portion.

6. The data processing device of claim 1 , wherein the second electromagnetic radiation has a frequency content corresponding to a frequency range in which the data processing device is adapted to suppress propagation of the electromagnetic radiation.

7. The data processing device of claim 1 , wherein the determination is made based upon a schedule that specifies one or more points in time during when the electromagnetic interference suppression state of the data processing device is scheduled to be tested.

8. The data processing device of claim 1 , wherein the determination is made based upon a physical change in a structure of the data processing device.

9. The data processing device of claim 8 , wherein the physical change is movement of a vent of the data processing device.

10. The data processing device of claim 9 , wherein the vent is adapted to suppress propagation of the electromagnetic radiation.

11. The data processing device of claim 8 , wherein the physical change is movement of a portion of the data processing device to facilitate modification of a device of the devices.

12. The data processing device of claim 1 , wherein the isolation test system is further programmed to:
make a third determination that the electromagnetic interference suppression state of the data processing device is to be determined;
in response to the third determination:
suppress second generation of the electromagnetic radiation by the devices;
while the second generation of the electromagnetic radiation by the devices is suppressed:
identify a second quantity of the second electromagnetic radiation that propagated through the boundary of the internal volume;
make a fourth determination, based at least in part on the second quantity, that the electromagnetic interference suppression state of the data processing device is an electromagnetic interference suppressed state; and
stop the suppressing of the second generation of the electromagnetic radiation by the devices based on the fourth determination.

13. The data processing device of claim 1 , wherein the data processing device is adapted to attenuate the electromagnetic radiation as the electromagnetic radiation propagates through the boundary of the internal volume by at least 90 decibels when the electromagnetic interference suppression state of the data processing device is an electromagnetic interference suppressed state.

14. The data processing device of claim 13 , wherein the data processing device is further adapted to not attenuate the electromagnetic radiation as the electromagnetic radiation propagates through the boundary of the internal volume by at least 90 decibels when the electromagnetic interference suppression state of the data processing device is the electromagnetic interference suppression compromised state.

15. The data processing device of claim 1 , wherein at least a device of the devices is an electromagnetic interference emitting device.

16. The data processing device of claim 1 , wherein at least a device of the devices is a cell phone.

17. A method for managing electromagnetic interference (EMI), comprising:
making a determination that an EMI suppression state of a data processing device is to be determined;
in response to the determination:
suppressing generation of electromagnetic radiation by devices disposed in the data processing device;
while the generation of the electromagnetic radiation by the devices is suppressed:
identifying a quantity of second electromagnetic radiation that propagated through a boundary of an internal volume of the data processing device;
making a second determination, based at least in part on the quantity, that the EMI suppression state of the data processing device is an electromagnetic interference suppression compromised state; and
initiating performance of an action set to remediate the electromagnetic interference suppression compromised state of the data processing device based on the second determination.

18. The method of claim 17 , further comprising:
making a third determination that the electromagnetic interference suppression state of the data processing device is to be determined;
in response to the third determination:
suppressing second generation of the electromagnetic radiation by the devices;
while the second generation of the electromagnetic radiation by the devices is suppressed:
identifying a second quantity of the second electromagnetic radiation that propagated through the boundary of the internal volume;
making a fourth determination, based at least in part on the second quantity, that the electromagnetic interference suppression state of the data processing device is an electromagnetic interference suppressed state; and
stopping the suppressing of the second generation of the electromagnetic radiation by the devices based on the fourth determination.

19. A non-transitory computer readable medium comprising instructions that when executed by a data processing device cause the data processing device to perform a method for managing electromagnetic interference (EMI), the method comprising:
making a determination that an EMI suppression state of a data processing device is to be determined;
in response to the determination:
suppressing generation of electromagnetic radiation by devices disposed in the data processing device;
while the generation of the electromagnetic radiation by the devices is suppressed:
identifying a quantity of second electromagnetic radiation that propagated through a boundary of an internal volume of the data processing device;
making a second determination, based at least in part on the quantity, that the EMI suppression state of the data processing device is an electromagnetic interference suppression compromised state; and
initiating performance of an action set to remediate the electromagnetic interference suppression compromised state of the data processing device based on the second deter

Assignees

• Dell Products Lp

Inventors

• Embleton Steven
• Sy Ben John
• Tunks Eric Michael

Classifications

• H05K7/1498

  Resource management, Optimisation arrangements, e.g. configuration, identification, tracking, physical location (thermal management H05K7/20836) · CPC title

• H05K7/20136

  Forced ventilation, e.g. by fans (H05K7/202 takes precedence) · CPC title

• G06F1/182

  with special features, e.g. for use in industrial environments; grounding or shielding against radio frequency interference [RFI] or electromagnetical interference [EMI] · CPC title

• G01R31/002 Primary

  where the device under test is an electronic circuit · CPC title

• H05K7/1487 Primary

  Blade assemblies, e.g. blade cases or inner arrangements within a blade · CPC title