APPARATUS AND METHOD FOR REDUCING ELECTRO MAGNETIC INTERFERENCE IN MOBILE TERMINAL

• US 20110096012A1
• Filed: 10/26/2010
• Published: 04/28/2011
• Est. Priority Date: 10/26/2009
• Status: Abandoned Application

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: JHUN, Jhae-Kon, PARK, Jung-Sik
• Application Number:
  US12/912,015
• Publication Number:
  US 20110096012A1
• Time in Patent Office: Days
• US Class Current: 345/173
• CPC Class Codes: G06F 3/04166 Details of scanning methods, e.g. sampling time, grouping of sub areas or time sharing with display driving Synchronisation with the driving of the display or the backlighting unit to avoid interferences generated internally G06F3/04184

Abstract

An apparatus and a method for dividing a frequency region of a touch screen panel into a plurality of regions and using them in order to reduce an Electro Magnetic Interference (EMI) caused by a frequency of a touch screen panel that occurs in a mobile terminal are provided. The apparatus includes a frequency changing unit. The frequency changing unit divides a frequency region of a touch screen panel into two or more regions, and changes the frequency region of the touch screen panel.

Claims

1. An apparatus for reducing an Electro Magnetic Interference (EMI) in a mobile terminal, the apparatus comprising:

a frequency changing unit for dividing a frequency region of a touch screen panel into two or more regions, and for changing the frequency region of the touch screen panel.

2. The apparatus of claim 1, wherein, when determining that a receiver that uses the same frequency as a frequency region of the touch screen panel operates, the frequency changing unit changes the frequency of the touch screen panel to a different frequency region.

3. The apparatus of claim 1, wherein a frequency of the touch screen panel comprises a multiplied frequency of a frequency generated from the touch screen panel, and comprises an interference frequency besides the multiplied frequency.

4. The apparatus of claim 1, wherein the frequency region of the touch screen is divided into two or more regions as illustrated in the following table:

5. The apparatus of claim 1, wherein the frequency region of the touch screen is divided into two or more regions as illustrated in the following table:

6. A method for reducing an Electro Magnetic Interference (EMI) in a mobile terminal, the method comprising:

dividing a frequency region of a touch screen panel into two or more regions; and

changing the frequency region of the touch screen panel.

7. The method of claim 6, further comprising, when determining that a receiver that uses the same frequency as a frequency region of the touch screen panel operates, changing the frequency of the touch screen panel to a different frequency region.

8. The method of claim 6, wherein a frequency of the touch screen panel comprises a multiplied frequency of a frequency generated from the touch screen panel, and comprises an interference frequency besides the multiplied frequency.

9. The method of claim 6, wherein the frequency region of the touch screen is divided into two or more regions as illustrated in the following table:

10. The method of claim 6, wherein the frequency region of the touch screen is divided into two or more regions as illustrated in the following table:

11. An apparatus for reducing an Electro Magnetic Interference (EMI) with respect to a touch input, the apparatus comprising:

a touch screen panel for dividing a frequency region into a plurality of use frequency bands; and

a frequency changing unit for processing a frequency band of the touch screen panel such that the frequency band of the touch panel does not overlap a frequency band of a peripheral apparatus.

12. The apparatus of claim 11, wherein the frequency changing unit compares a multiplied frequency of a frequency generated from the touch screen panel with a frequency of the peripheral apparatus.

13. The apparatus of claim 12, wherein the frequency changing unit determines an interference frequency besides the multiplied frequency of the touch screen panel.

14. A method for reducing an Electro Magnetic Interference (EMI) in a mobile terminal, the method comprising:

determining a frequency region of a touch screen panel based on a frequency used by the touch screen panel;

determining if an apparatus using a frequency that interferes with the frequency region is operating; and

if the apparatus using the frequency that interferes with the frequency region is operating, changing the frequency used by the touch screen panel.

15. The method of claim 14, wherein the determining of the frequency region of the touch screen panel based on the frequency used by the touch screen panel comprises determining a multiplied frequency of the frequency used by the touch screen panel.

16. The method of claim 14, wherein the frequency region of the touch screen is divided into two or more regions as illustrated in the following table:

17. The method of claim 14, wherein the frequency region of the touch screen is divided into two or more regions as illustrated in the following table: