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:
Mar. 07, 2017

Filed:

Nov. 13, 2013
Applicant:

Mediatek Inc., Hsin-Chu, TW;

Inventors:

Chien-Hua Wu, Taipei, TW;

Kuan-Hua Chao, Taipei, TW;

Assignee:

MEDIATEK INC., Hsin-Chu, TW;

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 19/14 (2006.01); G06F 11/22 (2006.01);
U.S. Cl.
CPC ...
G06F 11/221 (2013.01); G06F 11/2215 (2013.01); G06F 11/2247 (2013.01);
Abstract

A detecting circuit includes: a testing signal generator, arranged to selectively generate a testing signal having a first signal edge or a second signal edge to a connecting port; and a detector, arranged to detect a first detect signal on the connecting port after the testing signal having the first signal edge is coupled to the connecting port, and to detect a second detect signal on the connecting port after the testing signal having the second signal edge is coupled to the connecting port; wherein the detector is further arranged to determine if an external circuit element is coupled between the connecting port and a reference voltage according to the first detect signal and the second detect signal.


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