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:
Dec. 06, 2011
Filed:
Jul. 07, 2008
Atsushi Ohnuma, Osaka, JP;
Tatsuya Yoshida, Osaka, JP;
Atsushi Ohnuma, Osaka, JP;
Tatsuya Yoshida, Osaka, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
If a device non-compatible with CEC is contained in an input path when a display apparatus is HDMI-connected hierarchically to a plurality of external devices, an external device which has transmitted <Active Source> is selected as an operation object device. A TV () is HDMI-connected hierarchically to external devices (an AV amplifier (), recorders (), a DVD player ()) in a tree shape. The TV () receives <Active Source> indicating an active state capable of video output from the DVD player () and transmits <Set Stream Path> for switching the input path to the DVD player (). When a device non-compatible with CEC (AV amplifier ()) is contained in the input path which transmits <Set Stream Path>, the TV () selects the DVD player () specified <Active Source> as an operation object device.