Video display apparatus, video output apparatus, control methods thereof, and video display system

摘要

Compatible video signal information having first information indicating a pixel number of a video signal displayable by a video display apparatus and second information that is setting information required in order for the video display apparatus to display a video signal having the pixel number is transmitted to a video output apparatus. In the case where a video signal received from the video output apparatus after the compatible video signal information is transmitted is a video signal having a pixel number displayable by the video display apparatus but not being displayable, the compatible video signal information is updated so that setting information for the pixel number of that video signal is included in the second information.

主权项

1. A video output apparatus comprising:
a first obtaining unit configured to obtain, from a video display apparatus, first information indicating a plurality of pixel numbers of video signals displayable by the video display apparatus and second information that is detailed setting information required in order for the video output apparatus to generate video signal having one of the plurality of pixel numbers; a first determining unit configured to determine whether the video output apparatus is able to output a video signal corresponding to the second information obtained by the first obtaining unit; a second determining unit configured to determine whether the video output apparatus is able to output a video signal corresponding to the first information obtained by the first obtaining unit; a second obtaining unit configured to, in a case where it is determined by the first determining unit that the video output apparatus is not able to output the video signal corresponding to the second information and where it is determined by the second determining unit that the video output apparatus is able to output the video signal corresponding to the first information, select a first pixel number, that the video output apparatus is able to output, from the plurality of pixel numbers and obtain the detailed setting information for the first pixel number; and an output unit configured to generate a video signal corresponding to the detailed setting information obtained by the second obtaining unit, and to output the generated video signal to the video display apparatus, wherein the detailed setting information for the first pixel number is information which is not included in the first information and the second information.