JPH03278784A - Tv conference system - Google Patents

Abstract

PURPOSE:To prevent a troublesome operation by sending control information to a 2nd TV conference terminal equipment not having a cursor control right upon the detection of a cursor reaching a border line with a 1st window and switching the relation of upper and lower position of the 1st and 2nd windows and displaying the result after the reply is received. CONSTITUTION:The system is provided with cursor detection sections 12,22 detecting a cursor position, window control sections 13, 23 controlling the discrimination of the cursor position, the display of the cursor and the display of window, and control right control sections 14, 24 controlling the right of the control of a common share picture. When it is discriminated that a pointer reaches a border line of a hidden part of the window 51 from the display area of the window 51, the control information from a TV conference terminal equipment 1 having the control right is sent and when the TV conference terminal equipment 2 receives the control information, the equipment sends ACK, and after the transmission of the ACK from the TV conference terminal equipment 2, the TV conference terminal equipment 1 having the control right reverses the upper and lower position relation after the reception of the ACK. Thus, a troublesome operation is avoided.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a TV conference system, and particularly to a TV conference system using a TV conference terminal device that performs multi-window display.

[Conventional technology]

Conventionally, in this type of TV conference system, when you want to see a portion of two windows displayed on a TV conference terminal device, one of which is covered by another window, the TV conference terminal device that has the operating authority Then, control information was sent to the other party's TV conference terminal using input means such as button input or icon selection, and after the response, both TV conference terminals changed the vertical relationship between the two window displays.

[Problem to be solved by the invention]

In the conventional TV conference system described above, when a meeting is held using a shared cursor while viewing the same screen between TV conference terminal devices, one of the two window displays may be covered by another window. If you want to immediately see a section of the screen, you have to select an icon or the like with a cursor in order to change the vertical relationship between the two window displays, which has the disadvantage that the operation is cumbersome.

[Means to solve the problem]

The TV conference system of the present invention includes a cursor input device for inputting a cursor, a cursor position detection unit for detecting the cursor position from the cursor input device, an operation right control unit for controlling the right to operate the cursor, and a control unit for controlling each window. a window information storage unit that stores information on display positions and vertical relationships of display of the window; and the cursor detection unit;
A window control unit that controls display of the window based on outputs from the operation authority control unit and the window information storage unit, and a communication control unit that transmits and receives control information of the window control unit and the operation authority control unit. In a TV conference system in which first and second TV conference terminal devices configured as a second window that is partially covered by the first window displayed on the first TV conference terminal device based on information from the cursor detection unit and window information storage unit of the first TV conference terminal device; When it is detected that the cursor existing in the window has reached the boundary line with the first window, this detection information is sent to the second window, which does not have cursor operation authority, through the communication control unit of the first TV conference terminal. and after receiving the response from the second TV conference terminal, the window control unit of the first TV conference terminal controls the upper and lower display of the first and second windows. When the window control unit of the second TV conference terminal device receives the detection information from the first TV conference terminal device, the window control unit of the second TV conference terminal device controls the communication control unit of the second TV conference terminal device. After transmitting the response through the TV conference terminal device 2, the vertical relationship of the display of the first and second windows of the TV conference terminal device of article 2 is changed and displayed.

〔Example〕

Next, the present invention will be explained with reference to the drawings.

FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention, FIG. 2 is a flowchart showing an example of the operating procedure of this embodiment, and FIG. 3 shows the flow of window control information in 330 in FIG. Flow chart shown in FIG. 4 (a), (b), (c
) and (d) are diagrams each showing an example of a window display between two TV conference terminal devices.

In FIG. 1, the TV conference system of this embodiment is configured by two TV conference terminal devices 1 and 2 connected via a communication line, and a TV conference terminal device 1.

2 each has a cursor input device 1 for inputting a cursor;
1.21 and cursor detection unit 1 that detects the cursor position
2.22 and determining the cursor position.

A window control unit 13.23 that controls cursor display and window display; and an operation authority control unit 14.23 that controls the right to display and delete windows on the shared screen.
24, and a communication control unit 15.25 that transmits and receives control information.
and a window information storage unit 1 that stores the vertical relationship of window display and portions covered by other windows.
6.26.

Next, FIGS. 1, 2, 3, and 4(a), (b), and (c) show the operation of this embodiment.

This will be explained using (d).

First, the TV conference terminal device fl side in Fig. 3, Fig. 4(a)
, (c) is the side of the TV conference terminal device 1 that has the operating authority, the side of the TV conference terminal device 2 of FIG. 3 is the side of the TV conference terminal device 2 that does not have the operating authority, , window 50
Assume that the window 21 is partially covered and displayed and the pointer cursor (hereinafter referred to as pointer) is within the display area of the window 51.

The operation of the TV conference terminal device l having the operating authority will be explained using FIGS. 1 and 2.

First, the cursor detection unit 12 always checks whether the pointer has moved or not (540). If the pointer has moved, it checks whether the terminal on its own side is rarely operated using information from the operation control unit 14 (S41), and if it is rarely operated. Then, a check is made to see if the pointer has reached the boundary line with the hidden portion of the window 51 (S42). As a result, when the pointer reaches the border line, the vertical relationship of the windows is checked (843), and it is determined that the pointer has reached the border line between the hidden part and the hidden part. Once determined, control information for instructing display of the hidden part to other terminals is transmitted through the communication control unit 15 (S4
4) Waits for a response from the TV conference terminal device 2, and if there is a response (S45), reads window information from the window information storage section 16 and displays the window 51 on top of the window 50 (S46). Next, the pointer is displayed at the moving location, and from then on, the pointer on the clothing is detected (S47).

FIG. 3 shows details of the flow of window control information between terminals in FIG. 2 830.

In FIG. 3, control information is sent from the TV conference terminal device 1 side that has operation authority (531), and when the TV conference terminal device 2 side receives it (S32), it transmits an ACK (333).
. The TV conference terminal device 2 side sends the ACK after sending the ACK (333), and the TV conference terminal device 1 side, which has operation authority, sends the ACK after receiving the ACK (333).
In S34), processing is performed to change the upper and lower positions of the windows (S35, 536).

FIG. 4(a) shows the side of the TV conference terminal device 1 that has the operating authority (
b) is an example of the window displayed when the pointer reaches the boundary line between the window 51 and the hidden part on the TV conference terminal device 2 side, and FIGS. 4(c) and 4(d) are the window 50 and This is an example in which the vertical relationship of the display of the window 51 is changed and the hidden part of the window 51 is displayed.

〔Effect of the invention〕

As explained above, the present invention provides a window control section of the first TV* conference terminal device having cursor operation authority;
exists in a second window that is partially covered by the first window displayed on the first TV conference terminal device based on information from the cursor detection unit and window information storage unit of the TV conference terminal device. When it detects that the cursor has reached the border with the first window,
This detection information is transmitted to the second TV conference terminal device that does not have cursor operation authority through the communication control unit of the first TV conference terminal device, and after receiving the response from the second TV conference terminal device, the second TV conference terminal device The window control unit of the first TV conference terminal device changes the vertical relationship between the first and second windows, and the window control unit of the second TV conference terminal device displays the windows from the first TV conference terminal device. When the detection information is received, a response is sent through the communication control unit of the second TV conference terminal device, and then the vertical relationship of the first and second windows of the second TV conference terminal device is changed and displayed. This eliminates the conventional operation of selecting an icon or the like with a cursor to change the vertical relationship of the window display, thereby making the operation less cumbersome.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention, FIG. 2 is a flowchart showing an example of the operating procedure of this embodiment, and FIG. 3 shows the flow of window control information in 830 in FIG. Flow chart shown in FIG. 4 (a), (b), (c
) and (d) are diagrams each showing an example of a window display between two TV* conference terminal devices. 1.2... TV conference terminal device, 11.21... Cursor input device, 12.22... Cursor detection unit, 13
．． 23... Window control unit, 14.24... Operation authority control unit, 15.25... Communication control unit, 16°26.
...window information storage means, 50.51...window.

Claims (1)

[Claims] A cursor input device for inputting a cursor, a cursor position detection unit for detecting the cursor position from the cursor input device, an operation right control unit for controlling the right to operate the cursor, and a control unit for controlling the display position of each window and the display of the window. a window information storage unit that stores vertical relationship information; a window control unit that controls display of the window based on outputs from the cursor detection unit, the operating authority control unit, and the window information storage unit; the window control unit; and a communication control unit that transmits and receives control information of the operation authority control unit.
In a TV conference system in which V-conference terminal devices are interconnected via a communication network, the first
The window control unit of the TV conference terminal device controls the first window displayed on the first TV conference terminal device based on information from the cursor detection unit and window information storage unit of the first TV conference terminal device. When it is detected that the cursor existing in the partially covered second window has reached the boundary line with the first window, this detection information is transmitted to the communication control of the first TV conference terminal device. the window control unit of the first TV conference terminal after receiving the response from the second TV conference terminal. The display of the first and second windows is switched and displayed, and the window control unit of the second TV conference terminal device controls the display of the first and second windows.
Upon receiving the detection information from the conference terminal device, a response is sent through the communication control unit of the second TV conference terminal device, and then the top and bottom of the display of the first and second windows of the second TV conference terminal device are changed. A TV conference system characterized by changing and displaying relationships.