VIDEO DISPLAY APPARATUS, VIDEO OUTPUT APPARATUS, CONTROL METHODS THEREOF, AND VIDEO DISPLAY SYSTEM
First Claim
1. A video display apparatus provided with a notifying unit configured to transmit, to a video output apparatus, compatible video signal information having first information indicating a plurality of pixel numbers of video signal displayable by the video display apparatus and second information that is setting information required in order for the video output apparatus to generate video signals having at least a portion of the plurality of pixel numbers and being displayable by the video display apparatus, comprising:
- a determining unit configured to determine whether a video signal received from the video output apparatus after the compatible video signal information is transmitted to the video output apparatus by the notifying unit is a video signal having a pixel number displayable by the video display apparatus and being displayable by the video display apparatus; and
an updating unit configured to update the second information of the compatible video signal information, in a case where it is determined by the determining unit that the video signal received from the video output apparatus is a video signal having a pixel number displayable by the video display apparatus and not being displayable by the video display apparatus, such that the setting information for the pixel number of the video signal received from the video output apparatus is included in the second information,wherein the notifying unit transmits the compatible video signal information updated by the updating unit to the video output apparatus.
1 Assignment
0 Petitions
Accused Products
Abstract
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.
11 Citations
13 Claims
-
1. A video display apparatus provided with a notifying unit configured to transmit, to a video output apparatus, compatible video signal information having first information indicating a plurality of pixel numbers of video signal displayable by the video display apparatus and second information that is setting information required in order for the video output apparatus to generate video signals having at least a portion of the plurality of pixel numbers and being displayable by the video display apparatus, comprising:
-
a determining unit configured to determine whether a video signal received from the video output apparatus after the compatible video signal information is transmitted to the video output apparatus by the notifying unit is a video signal having a pixel number displayable by the video display apparatus and being displayable by the video display apparatus; and an updating unit configured to update the second information of the compatible video signal information, in a case where it is determined by the determining unit that the video signal received from the video output apparatus is a video signal having a pixel number displayable by the video display apparatus and not being displayable by the video display apparatus, such that the setting information for the pixel number of the video signal received from the video output apparatus is included in the second information, wherein the notifying unit transmits the compatible video signal information updated by the updating unit to the video output apparatus. - View Dependent Claims (2, 3, 4)
-
-
5. A video output apparatus comprising:
-
a first obtaining unit configured to obtain, from a video display apparatus, compatible video signal information having first information indicating a plurality of pixel numbers of video signals displayable by the video display apparatus and second information that is setting information required in order for the video output apparatus to generate video signals having at least a portion of the plurality of pixel numbers and being displayable by the video display apparatus; a determining unit configured to determine whether output of a video signal displayable by the video display apparatus is possible, based on the first information and the second information of the compatible video signal information obtained by the first obtaining unit; a selecting unit configured to select one pixel number scheduled for output included in the first information that is outputtable by the video output apparatus, in a case where it is determined by the determining unit that a video signal displayable by the video display apparatus cannot be generated since a pixel number outputtable by the video output apparatus is included in the first information but setting information required in order to generate a video signal having the pixel number outputtable by the video output apparatus is not included in the second information; a second obtaining unit configured to obtain the setting information for the pixel number scheduled for output selected by the selecting unit from the video display apparatus; and an output unit configured to generate a video signal having the pixel number scheduled for output, based on the setting information for the pixel number scheduled for output obtained by the second obtaining unit, and to output the generated video signal to the video display apparatus. - View Dependent Claims (6, 7, 8, 9, 10, 13)
-
-
11. A control method of a video display apparatus provided with a notifying unit configured to transmit, to a video output apparatus, compatible video signal information having first information indicating a plurality of pixel numbers of video signals displayable by the video display apparatus and second information that is setting information required in order for the video output apparatus to generate video signals having at least a portion of the plurality of pixel numbers and being displayable by the video display apparatus, comprising:
-
a determining step of determining whether a video signal received from the video output apparatus after the compatible video signal information is transmitted to the video output apparatus by the notifying unit is a video signal having a pixel number displayable by the video display apparatus and being displayable by the video display apparatus; and an updating step of updating the second information of the compatible video signal information, in a case where it is determined in the determining step that the video signal received from the video output apparatus is a video signal having a pixel number displayable by the video display apparatus and not being displayable by the video display apparatus, such that the setting information for the pixel number of the video signal received from the video output apparatus is included in the second information, wherein the compatible video signal information updated in the updating step is transmitted to the video output apparatus.
-
-
12. A control method of a video output apparatus, comprising:
-
a first obtaining step of obtaining, from a video display apparatus, compatible video signal information having first information indicating a plurality of pixel numbers of video signals displayable by the video display apparatus and second information that is setting information required in order for the video output apparatus to generate video signals having at least a portion of the plurality of pixel numbers and being displayable by the video display apparatus; a determining step of determining whether output of a video signal displayable by the video display apparatus is possible, based on the first information and the second information of the compatible video signal information obtained in the first obtaining step; a selecting step of selecting one pixel number scheduled for output included in the first information that is outputtable by the video output apparatus, in a case where it is determined in the determining step that a video signal displayable by the video display apparatus cannot be generated since a pixel number outputtable by the video output apparatus is included in the first information but setting information required in order to generate a video signal having the pixel number outputtable by the video output apparatus is not included in the second information; a second obtaining step of obtaining the setting information for the pixel number scheduled for output selected in the selecting step from the video display apparatus; and an output step of generating a video signal having the pixel number scheduled for output, based on the setting information for the pixel number scheduled for output obtained in the second obtaining step, and outputting the generated video signal to the video display apparatus.
-
Specification