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.
Patent No.:
Date of Patent:
Jun. 30, 2015
Filed:
Dec. 31, 2012
Huawei Device Co., Ltd., Shenzhen, Guangdong, CN;
Juntao Chen, Shenzhen, CN;
Huawei Device Co., Ltd., Shenzhen, CN;
Abstract
A method for determining a type of video signal to be output is provided. The method includes: respectively extracting detection signals in video signals in different video output interface modes; respectively converting the extracted detection signal into a direct current voltage signal; and respectively comparing the direct current voltage signal with a voltage threshold, and determining, according to a comparison result, a type of video signal to be output. An embodiment further provides an apparatus for determining a type of video signal to be output. The embodiments of the present invention, by respectively extracting a detection signal included in a video signal in each video output interface mode, and comparing a voltage of the detection signal with a voltage threshold, determine whether a corresponding DAC port in the each video output interface mode is connected to a load terminal, and thereby determine a video signal to be output.