JPH04299764A - Video switch control device with security function - Google Patents

Abstract

PURPOSE:To share an information source terminal while keeping individual privacy by registering and changing a processing end procedure corresponding to an information source and an individual access right corresponding to the information source. CONSTITUTION:This device is equipped with a processing end procedure storing means 1 corresponding to the information source, processing end procedure registering/changing means 2 corresponding to the information source, processing end procedure transmitting means 3 corresponding to the information source, individual access storing means 4 corresponding to the information source, individual access right registering/changing means 5 corresponding to the information source, access right judging/controlling means 6 and video switch matrix 7. Then, the processing end procedure is registered by the processing end procedure storing means 1, registered and changed by the processing end procedure registering/changing means 2. Further, the processing end procedure is transmitted by the processing end procedure transmitting means 2, and the individual access right is stored by the individual access right storing means 4, registered and changed by the individual access right registering/changing means 5.

Description

[Detailed description of the invention]

0001

[Industrial Application Field] The present invention is applicable to stock market prices, commodity market prices,
Information on bond market prices, foreign exchange rates, etc. (hereinafter referred to as "information sources")
It relates to a control system for dealing and trading operations that collects and outputs information from multiple terminal devices, and in particular, a video switch control device that enables each user to control connections to information sources containing confidential information. It is related to.

0002

2. Description of the Related Art A video switch control device is used in the above-mentioned dealing and trading business control system, as shown in FIG.
The video signal and keyboard signal are taken in from C... through the interface device (CEIF), switched in the video switch main control section (VDSC), and output to the user's output device (workstation, hereinafter referred to as "W").
It is a device that outputs data to The connection control of the WS to each information source is performed by giving each WS an access right (a right to connect to the information source). Currently, there are two types of access rights: the first is the "V" right, which connects only the video signal, and the second is the "S" right, which connects the video signal and the keyboard signal. Information can be displayed on the display from a WS with V rights, but since a keyboard cannot be connected, the information on the display can only be viewed and cannot be manipulated. . Additionally, from a WS that has been given S rights, in addition to connecting a video (display) and a keyboard at the same time,
It is also possible to connect just one. In other words, the S right includes the V right.

[0003] Next, regarding conventional information source connection control methods, there is a "shared connection" as the most common connection method for video switches. As shown in Figure 8, this method connects a small number of information source terminals to a large number of WSs (
Information source terminals are shared by users (users), and information source terminals are not provided on a one-to-one basis for each user, but fewer information source terminals than users are used efficiently to increase usage efficiency. The purpose is to

In the configuration shown in FIG. 8, all three seats WS1 to WS3 have S rights, but only one WS has S rights at a time.
rights are no longer available. That is, for example, while WS1 is exercising the S right, WS2 and WS3 can only display the screen using the V right and view the screen that WS1 is using, and cannot connect a keyboard. The screen cannot be operated using the keyboard. Therefore, in this shared connection, the video signal can be simultaneously output to all WSs that own the S right or the V right, but the keyboard signal can only be connected to one WS at the same time. Even if there are such restrictions,
According to this shared connection, since the number of information sources is small, the usage fee for unnecessary information sources is reduced for the user, which has the advantage of being economical.

[0005]

[Problems to be Solved by the Invention] However, in the conventional shared connection method described above, if WS1 to WS3 all own the S right, when WS1 is exercising the S right, WS2 and WS3 When an information source is accessed using the V right, the user's private information of the WS1 can be viewed. Therefore, if the information source contains personal confidential information, each user will need an information source terminal, as shown in Figure 9, making it impossible to share a small number of terminals among many people. .

[0006] Therefore, the present invention aims to share one information source terminal among multiple WSs, and to share personal confidential information with other WSs.
An object of the present invention is to provide a video switch device having a secret-keeping function that prevents users from viewing the video.

[0007]

[Means for Solving the Problems] A video switch control device according to the present invention includes: means for storing a processing termination procedure corresponding to an information source; means for registering and changing a processing termination procedure corresponding to an information source; A means for transmitting a processing termination procedure corresponding to an information source, a means for storing individual access rights corresponding to the information source, and a means for registering and changing individual access rights corresponding to the information source. It is characterized by the presence of

That is, the present invention solves the above problem by adding the following new functions to the video switch control device.

(1) Addition of new access rights. Since the current S right also includes the V right, an S right that does not include the V right, that is, an access right that can only connect a video signal and a keyboard signal at the same time, is added (hereinafter referred to as "A right"). For this reason, it is no longer possible to connect only video signals as in the conventional S right.

(2) Addition of a function to send a sequence for terminating an information source when detaching. When the user finishes using the video switch, the user usually performs an operation to disconnect the video switch (detach). In this case, the information source terminal itself has not been terminated, so other users can connect (
Attach), the connection will be made with the previous user's screen still displayed, which may allow others to see your confidential information. Therefore, in the present invention, as a method for preventing this, a function is added that transmits a sequence for terminating the information source at the time of detachment.

(3) Addition of a function to also disconnect the video signal when detaching. In a normal detach operation, only the keyboard signal is disconnected, leaving the video signal intact and visible on the display. In this state, if the next user starts using the device, the previous user will be able to see the confidential information, so we have added a function that also disconnects the video signal at the time of detachment.

By adding the above functions, the functions shown in FIG. 1 become possible. In this case, while one information source terminal is shared by three WSs, there is no fear that the other two WSs can see the own secret information.

[0013]

Embodiments Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 2 is a block diagram showing the configuration of an embodiment of a video switch control device according to the present invention, in which 10 is a video switch control device, 11 is an information source terminal, and 12 is an information source interface device. The video switch control device 10 includes a process termination procedure storage means 1 corresponding to the information source, a process termination procedure registration and modification means 2 corresponding to the information source, a process termination procedure transmission means 3 corresponding to the information source, and a process termination procedure transmitting means 3 corresponding to the information source. The system includes an individual access right storage means 4 corresponding to the information source, an individual access right registration and changing means 5 corresponding to the information source, an access right determination and control means 6, and a video switch matrix 7. 3 shows the format of the process termination procedure table stored in the process termination procedure storage means 1, and FIG. 4 shows the format of the individual access right table stored in the individual access right storage means 4.

Next, the connection and termination operations of the video switch control device 10 will be explained with reference to the flowcharts of FIGS. 5 and 6. Note that in FIGS. 2 and 5, the numbers surrounded by triangles indicate the procedures of the corresponding connection action, and in FIGS. 2 and 6, the numbers surrounded by the squares indicate the procedures of the corresponding termination action.

In the connection operation flow shown in FIG. 5, when the WS makes a connection request in step S1, the access right determination and control means 6 determines the request from the WS in step S2, and if the request is correct, In step S3, the individual access right table as shown in FIG. 4 stored in the individual access right storage means 4 is searched, and in step S
The request from the WS is determined again in step S4, and if the request is correct, the access right is determined, and the control means 6 instructs the video switch matrix 7 to connect the video signal in step S5. This causes a display on the WS in step S6.

Next, in the flow of the termination operation shown in FIG. 6, when the WS issues a termination request in step S7, the access right determination and control means 6 determines the request in step S8, and in the next step S9, A process termination procedure table as shown in FIG.
The processing end procedure is transmitted to the information source interface device 12 and the video switch matrix 7, and a video signal end instruction is issued in step S11. This causes a display on the WS in step S12. Note that there are cases where the process directly proceeds from step S8 to step S10.

[0017]

[Effects of the Invention] According to the present invention, it is possible to realize sharing of an information source terminal, which is a means of effectively utilizing a video switch system, without the fear that information sources containing personal confidential information will be seen by others. This has the advantage of reducing the required number of information source terminals and reducing the cost burden on users.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the overall configuration of a video switch system having a video switch control device according to the present invention.

FIG. 2 is a block diagram showing the configuration of an embodiment of a video switch control device according to the present invention.

FIG. 3 shows the format of a process termination procedure table stored in the process termination procedure storage means of FIG. 2;

FIG. 4 shows the format of an individual access right table stored in the individual access right storage means of FIG. 2;

FIG. 5 is a flowchart showing the connection operation of the video switch control device of FIG. 2;

FIG. 6 is a flowchart showing the termination operation of the video switch control device of FIG. 2;

FIG. 7 is a block diagram showing the overall configuration of a conventional general video switch system.

FIG. 8 is a block diagram showing the overall configuration of a conventional video switch system that uses a shared connection method.

FIG. 9 is a block diagram showing the overall configuration of a conventional video switch system having a security function.

[Explanation of symbols]

1 Processing end procedure storage means 2
Processing end procedure registration and change means 3
Processing completion procedure transmission means 4 Individual access right storage means 5 Individual access right registration and modification means 6 Access right determination and control means 7 Video switch matrix 10
Video switch control device 11 Information source terminal

Claims (1)

[Claims] [Claim 1] A processing termination procedure corresponding to an information source in a control device for dealing and trading operations that collects and outputs information such as stock prices, commodity prices, bond prices, foreign exchange prices, etc. from a plurality of terminal devices. means (1) for storing the process termination procedure corresponding to the information source; means (2) for registering and changing the process termination procedure corresponding to the information source; means (3) for transmitting the process termination procedure corresponding to the information source; A video having a security protection function characterized by comprising means (4) for storing corresponding individual access rights, and means (5) for registering and changing individual access rights corresponding to information sources. Switch control device.