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:
Aug. 30, 2011
Filed:
Feb. 08, 2007
Po-feng Huang, Taipei Hsien, TW;
Hung-hsi Chien, Taipei Hsien, TW;
Hsin-yuan Hsieh, Taipei Hsien, TW;
Cheng-tai Yang, Taipei Hsien, TW;
Wei-chen Chou, Taipei Hsien, TW;
Po-Feng Huang, Taipei Hsien, TW;
Hung-Hsi Chien, Taipei Hsien, TW;
Hsin-Yuan Hsieh, Taipei Hsien, TW;
Cheng-Tai Yang, Taipei Hsien, TW;
Wei-Chen Chou, Taipei Hsien, TW;
Wistron Corporation, Xizhi Dist., New Taipei, TW;
Abstract
An auto-detection circuit for detecting video signals includes a reception end for receiving a video signal, a synchronization signal detector coupled to the reception end for generating a waveform according to voltage variation of the video signal, a peak value detector coupled to the synchronization signal detector for determining peak value of the wave form, a direct current voltage level switch coupled to the peak value detector for switching output voltage as first direct current voltage level or second direct current voltage level, and an output end coupled to the direct current voltage level switch for outputting the output voltage.