Method and apparatus for measuring performance of electronic device

• US 9,091,716 B2
• Filed: 10/04/2012
• Issued: 07/28/2015
• Est. Priority Date: 10/04/2011
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Kim, Jungmin, Seo, Keonyoung, Yang, Kwangmo, Kang, Byeonghwan, Park, Bonghee
• Primary Examiner(s): Nguyen, Tung X
• Application Number:
  US13/644,793
• Publication Number:
  US 20130082717A1
• Time in Patent Office: 1,027 Days
• US Class Current: 1/1
• CPC Class Codes: G01R 29/0871 Complete apparatus or systems; circuits, e.g. receivers or amplifiers G01R29/0878, G01R29/0892 take precedence; dosimeters, warning devices G01R29/0857
• CPC Class Codes: G01R 31/001 Measuring interference from external sources to, or emission from, the device under test, e.g. EMC, EMI, EMP or ESD testing measuring electromagnetic fields G01R29/08; circuits for generating HV pulses in dielectric strength testing G01R31/14
• CPC Class Codes: G01R 31/002 where the device under test is an electronic circuit
• CPC Class Codes: H04M 1/24 Arrangements for testing

Abstract

A method and an apparatus for measuring performance of an electronic device are provided. The apparatus includes an electromagnetic wave measuring device for measuring an actual level of an electromagnetic wave of an electronic device, and an analysis controller for applying a previously stored level change value to the actual level of the electromagnetic wave to compute a measured level of the electromagnetic wave. The method and the apparatus for measuring performance of an electronic device can easily measure an electromagnetic wave level of the electronic device without using a device suggested by an international standard.

Claims

1. A method of measuring performance of an electronic device, the method comprising:

obtaining a relationship equation between an electromagnetic level measured by a first measuring device and an electromagnetic level measured by a second measuring device;

measuring a first electromagnetic wave level of a measurement target electronic device by the second measuring device; and

obtaining a second electromagnetic wave level of the measurement target electronic device based on the measured first electromagnetic wave level and the relationship equation.

2. The method of claim 1, wherein the obtaining of the relationship equation comprises measuring a background noise by the first measuring device and the second measuring device.

3. The method of claim 2, wherein the obtaining of the relationship equation comprises:

measuring an electromagnetic wave level radiated from a reference signal generator by the first measuring device and the second measuring device; and

comparing an electromagnetic level of the reference signal generator measured by the second measuring device with an electromagnetic level of the reference signal generator measured by the first measuring device.

4. The method of claim 3, wherein the comparing of the electromagnetic level comprises comparing horizontal and vertical electromagnetic levels of the reference signal generator measured by the second measuring device with horizontal and vertical electromagnetic levels of the reference signal generator measured by the first measuring device, respectively.

5. The method of claim 3, wherein the comparing of the electromagnetic level comprises comparing the electromagnetic level of the reference signal generator measured by the second measuring device with the electromagnetic level of the reference signal generator measured by the first measuring device by frequency bands to obtain a weight function by frequencies based on the comparison result by the frequency bands.

6. The method of claim 1, wherein the obtaining of the relationship equation comprises receiving an electromagnetic level previously measured by the first measuring device and an electromagnetic level previously measured by the second measuring device.

7. A method of measuring performance of an electronic device by a measuring device, the method comprising:

measuring a first electromagnetic wave level radiated from the electronic device; and

obtaining a second electromagnetic wave level of the electronic device based on a relationship equation obtained based on the first measured electromagnetic wave level and electromagnetic wave levels previously measured by the measuring device and the other measuring device.

8. The method of claim 7, wherein the relationship equation is obtained based on a background noise measured by the measuring device and the other measuring device.

9. The method of claim 8, wherein the relationship equation is obtained based on measuring an electromagnetic wave level radiated from a reference signal generator by the measuring device and the other measuring device, and comparing an electromagnetic level of the reference signal generator measured by the other measuring device with an electromagnetic level of the reference signal generator measured by the measuring device.

10. The method of claim 9, wherein the relationship equation compares horizontal and vertical electromagnetic levels of the reference signal generator measured by the other measuring device with horizontal and vertical electromagnetic levels of the reference signal generator measured by the measuring device, respectively.

11. The method of claim 9, wherein the relationship equation includes a weight function obtained by frequencies based on the comparison result by the frequency bands by comparing the electromagnetic level of the reference signal generator measured by the other measuring device with the electromagnetic level of the reference signal generator measured by the measuring device by frequency bands.

12. The method of claim 7, wherein the relationship equation is obtained based on an input value generated by receiving an electromagnetic level previously measured by the measuring device and an electromagnetic level previously measured by the other measuring device.

13. A measuring device for measuring performance of an electronic device, the measuring device comprising:

a measuring unit for measuring a first electromagnetic wave level radiated from the electronic device; and

a controller for obtaining a second electromagnetic wave level of the electronic device based on a relationship equation obtained based on the first measured electromagnetic wave level and electromagnetic wave levels previously measured by the measuring device and the other measuring device.

14. The measuring device of claim 13, wherein the controller obtains the relationship equation based on a background noise measured by the first measuring device and the other measuring device.

15. The measuring device of claim 14, wherein the controller obtains the relationship equation based on measuring an electromagnetic wave level radiated from a reference signal generator by the measuring device and the other measuring device, and comparing an electromagnetic level of the reference signal generator measured by the other measuring device with an electromagnetic level of the reference signal generator measured by the measuring device.

16. The measuring device of claim 14, wherein the controller obtains the relationship equation based on comparing horizontal and vertical electromagnetic levels of the reference signal generator measured by the other measuring device with horizontal and vertical electromagnetic levels of the reference signal generator measured by the measuring device, respectively.

17. The measuring device of claim 14, wherein the controller obtains the relationship equation including a weight function obtained by frequencies based on the comparison result by the frequency bands by comparing the electromagnetic level of the reference signal generator measured by the other measuring device with the electromagnetic level of the reference signal generator measured by the measuring device by frequency bands.

18. The measuring device of claim 13, further comprising an input unit receiving an electromagnetic level previously measured by the measuring device and an electromagnetic level previously measured by the other measuring device, and

wherein the controller obtains the relationship equation based on the received electromagnetic level.

19. A measuring device for measuring performance of a measurement target electronic device, the method comprising:

a measuring unit for measuring a first electromagnetic wave level of the measurement target electronic device by the measuring device; and

a controller for obtaining a relationship equation between an electromagnetic level measured by the measuring device and an electromagnetic level measured by another measuring device, and for obtaining a second electromagnetic wave level of the measurement target electronic device based on the measured first electromagnetic wave level and the relationship equation.

20. The method of claim 19, wherein the controller measures a background noise by the measuring device and the other measuring device for obtaining the relationship equation.