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:
May. 28, 2013
Filed:
Dec. 16, 2009
Ming-chieh Cheng, Taipei Hsien, TW;
Ming-Chieh Cheng, Taipei Hsien, TW;
Hon Hai Precision Industry Co., Ltd., New Taipei, TW;
Abstract
A video device to generate analog video signals to a plurality of display devices comprises a video processing chip, a plurality of video output interface circuits and a plurality of detection circuits. The video processing chip converts input video data into the analog video signals and comprises at least one video decoder and a plurality of analog to digital convertors. The video output interface circuit transmits the analog video signals to the plurality of display devices. The detection circuit detects voltage of horizontal sync signals of the analog video signals to determine connection of the video output interface circuit to the display device, and generates a feedback signal to the video processing chip to control the video decoder and the analog to digital convertor accordingly.