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:
Apr. 26, 2016

Filed:

Apr. 30, 2013
Applicants:

Fu Tai Hua Industry (Shenzhen) Co., Ltd., Shenzhen, CN;

Hon Hai Precision Industry Co., Ltd., New Taipei, TW;

Inventors:

Li-Sheng Shu, Shenzhen, CN;

Tsung-Jen Chuang, New Taipei, TW;

Shih-Fang Wong, New Taipei, TW;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 31/02 (2006.01); G01R 31/28 (2006.01);
U.S. Cl.
CPC ...
G01R 31/2853 (2013.01); G01R 31/2805 (2013.01); G01R 31/2812 (2013.01);
Abstract

A testing circuit for testing proper connections between pins and corresponding circuits within an integrated circuit includes a pin selection module. The pin selection module includes a plurality of input pins, an output pin, and a control pin. The pin selection module selectively connects one of the input pins to the output pin based upon a control signal from the control pin. A voltage-dividing module includes an input end to receive a test voltage, an output end connected with the output pin of the pin selection module, and a voltage-dividing element connected between the input end and the output end. A determination module receives an output voltage from the output end, and determines whether the voltage of the output end falls into one of several predetermined voltage ranges, and outputs a result accordingly.


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