The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jan. 05, 2016

Filed:

Jun. 01, 2012
Applicants:

Yu-sheop Lee, Gyeonggi-do, KR;

Joo-hoon Lee, Gyeonggi-do, KR;

Inventors:

Yu-Sheop Lee, Gyeonggi-do, KR;

Joo-Hoon Lee, Gyeonggi-do, KR;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 3/044 (2006.01); G06F 3/046 (2006.01);
U.S. Cl.
CPC ...
G06F 3/046 (2013.01);
Abstract

An electromagnetic sensing apparatus built in a touch screen having at least one soft key is provided, in which a Printed Circuit Board (PCB) has at least one sub-area corresponding to the at least one soft key, a controller has at least one input/output channel and controls electromagnetic sensing of the electromagnetic sensing apparatus, and a loop unit extends from one of the at least one input/output channel, has at least one sub-loop arranged in the at least one sub-area on the PCB, and outputs current induced by an electromagnetic field. Each sub-loop outputs a different output value with respect to the electromagnetic field.


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