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:
Dec. 06, 2011

Filed:

Jul. 08, 2008
Applicants:

Hua-dong Cheng, Shenzhen, CN;

Wen-chuan Lian, Taipei Hsien, TW;

Yao Zhao, Shenzhen, CN;

Jian Sun, Shenzhen, CN;

Peng Chen, Shenzhen, CN;

Wen-sheng Tsai, Taipei Hsien, TW;

Inventors:

Hua-Dong Cheng, Shenzhen, CN;

Wen-Chuan Lian, Taipei Hsien, TW;

Yao Zhao, Shenzhen, CN;

Jian Sun, Shenzhen, CN;

Peng Chen, Shenzhen, CN;

Wen-Sheng Tsai, Taipei Hsien, TW;

Assignees:

Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd., Shenzhen, Guangdong Province, CN;

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

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04R 29/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

An audio test apparatus, and an exemplary audio test method that includes: processing an audio file through two independent channels; outputting no signals from a left channel and from a right channel in a first time period; receiving noise signals from the left and right channels; outputting single-frequency signals from the left channel only in a second time period; receiving the single-frequency signals from the left channel and crosstalk signals from the right channel; outputting multi-frequency signals from the left and right channels in a third time period; receiving the multi-frequency signals from the left and right channels; outputting single-frequency signals from the right channel only in a fourth time period; receiving the crosstalk signals from the left channel and the single-frequency signals from the right channel; and testing parameters according to the signals received during the four time periods.


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