| 摘要 |
<P>PROBLEM TO BE SOLVED: To quicken a response to a command transmitted from the video image display side to the video image output side furthermore according to an operation for the video image display side connected with the video image output side to perform two-way communications. <P>SOLUTION: A video image outputted from a photograph printer connected through an HDMI cable is displayed for a digital television. While continuing depression of a magnification button of a television remote controller, a display video image is magnified in the digital television by a magnification function thereof. When the magnification button is detached, the digital television requests the photograph printer to perform magnification processing of a video image with a magnifying power at a moment in time when depression state of a zoom-in button is released. In response to the request, the photograph printer performs magnification processing of a video image by the magnification function of the photograph printer and transmits a magnified video image to the digital television. <P>COPYRIGHT: (C)2009,JPO&INPIT |
