JPH04170167A - Moving picture display changeover device - Google Patents

Abstract

PURPOSE:To stably display a moving picture along with a changeover request from a request command section by providing a request command area to the request command section to apply exclusive control to a moving picture changeover request to a request command area. CONSTITUTION:Request command sections 102a-102c each have a request command area in part of display area of moving picture display sections 106a-106c and a mouse is used to enter a moving picture display changeover request to the request command area. A request from the request command sections 102a-102c takes two states; it is exit from the request command area of the request command section or enters the request command area of the request command section. When a request of exit arises from the request command area, a changeover control section 101 rewrites a state of a state latch section 103 to a state 0 representing it that no state is indicated. A moving picture along with a changeover request from the request command sections 102a-102c is stably displayed by applying exclusive control to a moving picture changeover request from the request command sections 102a-102c.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a video display switching device that exclusively controls video switching requests from a plurality of request instructing units and switches video display.

BACKGROUND OF THE INVENTION Recently, workstations and personal combiators have become increasingly multimedia, and attempts have been made to increase the sense of presence in attended meetings by displaying videos of speakers. A commonly known method for switching the video display is to determine the presence/absence and volume of voices of conference participants and display the speaker with the loudest voice.

Problems to be Solved by the Invention However, with the method described above, when multiple people speak at the same time, the display may become unstable and the video may switch rapidly, or even when one person is speaking, the voice of another person may be heard. If the size is too large, there is a problem that the display state becomes unstable, such as switching to a video unrelated to the speaker.

In view of the above-mentioned conventional problems, the present invention provides a moving image display switching device that stably displays moving images.

Means for Solving the Problems The present invention provides a switching control section that performs video switching control;
a request instruction section that issues a switching request to the switching control section; a state holding section that holds a device signal composed of the switching control section; a status display section that displays a state signal output from the switching control section; and a switching control section. The video switching section includes a video switching section that switches according to a status signal output from the video switching section, a video display section that displays the switched video, and a video input section that inputs video information to the video switching section.

According to the present invention, with the above configuration, by performing exclusive control on the video switching request from the request instruction section, it is possible to stably display the video according to the switching request from the request instruction section. be.

EXAMPLES The present invention will be described below with reference to the drawings. 1st
The figure is a block diagram showing an embodiment of a moving image display switching device according to the present invention. 101 is a switching control unit; 102
a, 102b, and 102c are request instruction units that issue a video switching request to the switching control unit 101; 103 is a state holding unit that holds the status signal output from the switching control unit 101; and 104a, 104b, and 104c are the state holding units 103. a status display unit that displays the status to be held; 105 is a video switching unit that switches video input/output according to a status signal output from the switching control unit 101; 106a, 106b;
106c is a video display unit such as a CRT that displays the video switched by the video switching unit 105; 107a; 1;
07 b and 107 c are moving image input units such as video cameras that input moving image information to the moving image switching unit 105 .

In this embodiment, the number of request instruction sections, status display sections, video display sections, and video input sections is set to n=3 for simplicity. That is, although the case where there are three conference participants is assumed, generality is not lost in the explanation based on this embodiment even in the case where n>3.

The operation of the above configuration will be explained below.

First, the operation of the switching control section 101 will be described with reference to the flowchart of FIG. Switching control section 1
01 accepts requests from the request instruction sections 102a, 102b, and 102c (a in FIG. 2). Here, request instruction section 1
An example of the configuration of 02 is shown in FIG. In this embodiment, the request instruction section 102 has a request instruction area 302 in a part of the display area of the video display section 106, for example, and issues a video display switching request to the request instruction area from the mouse. The state holding unit 103 includes request instruction units 102a and 1
02b, 102c request instruction area 0: State where no one is present X: State where only one person from AorBorC is present. Further, requests issued from the request instruction sections 102a, 102b, and 102c take two states: exiting from the request instruction area of the request instruction section, or entering the request instruction area of the request instruction section. When a request to leave the request instruction area of the request instruction section 102a, 102b, or 102c is issued (b in FIG. 2), the switching control section 101 changes the state of the state holding section 103 to a state in which no one is inside. Rewrite to 0 (C in Figure 2)
.

At this time, the status display units 104a, 104b, and 104C display the status of the status holding unit 103. When an input request to the request instruction area is issued from the request instruction units 102a, 102b, and 102c (see b in FIG. 2), the switching control unit 101 determines the state of the request instruction area from the status holding unit 103 (the second Figure d). When the state of the state holding unit 103 is state X in which only one person from AorBorC is present, the switching control unit 101 displays the state display unit 104a.

A warning is given to the terminals 104b and 104c by sounding, lighting, etc. When the status of the status holding unit 103 is 0, in which no one is present, the switching control unit 101 displays the status display unit 10.
3 to state X (f in Figure 2), and instructs the video switching unit 105 to switch the video (g in Figure 2).
), the video switching unit 105 switches input and output video signals.

Next, a state holding section 103 and moving image display sections 106a and 106b are controlled by the switching control section 101.

The relationship of 106C is shown in the table.

The following margin indicates that the moving image display sections 106a, 106b, and 106c do not switch when the state holding section 103 is in state 0, in which no one is present. Also, * indicates the video display portions 106a and 106.
There are several possible methods, such as not changing the display of 106b and 106c, or displaying your own video. Further, in this embodiment, exclusive control is performed by setting a request instruction area as a request instruction section in a part of the display area of the video display section 106, but exclusive control and video switching control can also be performed by pressing a button or the like. Also good.

Effects of the Invention As described above, the present invention provides a request instruction area in the request instruction section and performs exclusive control over video switching requests to the request instruction area, thereby stabilizing the video according to the switching request from the request instruction section. can be displayed.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of a moving image display switching device according to an embodiment of the present invention, FIG. 2 is an operation flowchart of the switching control section in FIG. 1, and FIG. 3 is a conceptual diagram of the request instruction section. 101.301...Switching control unit, 102a, 10
2b, 102c...request instruction section, 103...state holding section, 104a, 104b, 10
4 c - Status display section, 105... Video switching section, 106a, 106b, 106cm... Video display section, 1
07a, 107b. 107c...Movie input section, 302...Request instruction area. Name of agent: Patent attorney Akira Koebushi and two others Figure 6 r--- ■ =, J

Claims (1)

[Claims] a switching control section that performs video switching control; a request instruction section that issues a switching request to the switching control section; a state holding section that holds a state signal output from the switching control section; and a state signal output from the switching control section. a status display unit that displays a status signal; a video switching unit that switches according to the status signal output from the switching control unit; a video display unit that displays the switched video; and a video display unit that transmits video information to the video switching unit. A video display switching device comprising a video input section for inputting video.