TW200925873A - Keyboard-video-mouse switch and display switch - Google Patents

Abstract

A keyboard-video-mouse switch (KVM switch) and a display switch are provided. The KVM switch is used for operating a plurality of computers via a console. The console includes a keyboard, a display and a computer mouse. The KVM switch includes a switching unit, a controlling unit, and at least a sensing unit. The switching unit connected with the console and the computers is used for switching the data flow transmitted between the console and one of the computers, such that the computer can be operated via the console. The controlling unit connected with the switching unit is used for controlling the switching unit. The sensing unit connected with the controlling unit is used for sensing weather an article is located within a predetermined range and outputting a sensing signal accordingly. Wherein the controlling unit controls the switching unit to perform a predetermined action via the console according to the sensing signal.

Description

200925873

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a switching system, and more particularly to a multi-computer switching system and a video switching system. [Prior Art] With the advancement of technology, computers (or servers) have been widely used in enterprises. In a business, the number of computers (or servers) often reaches the number of stations, or even thousands. Information officers can switch to the appropriate computer (or server) through the multi-computer. In addition, video players are often used in public places. Operators can manage these video players through -. The computer switching system is used to operate several computers through at least one computer console (C_le). Multi-computer switching system ^ and several computers are connected to switch the number of electricity = stay in the room" so that the computer console can operate several computers ^ ^ ^, when the multi-computer switching system switches the computer console * cattle In the case of data flow, the user/w, T computer computer. The operation of the operation includes input; the operation and operation of the video switching system is used to pass at least one screen = source. Video switching system heart switching (4) and the number of streams, so that the screen is a simple video source.

Ik with multi-computer switching system and video application in corporate and public technology ±% ± ^ 糸,, more and more widely, users for multi-electric ribs change system and view 200925873

—....... The convenience of the 58PA switch system is also more demanding. Therefore, how to improve the convenience of multi-computer switching system and video switching system is an important direction of current research and development. SUMMARY OF THE INVENTION The present invention is directed to a multi-computer switching system and a video switching system that automatically initiate a predetermined action using a sensing unit to improve the usability of the multi-computer switching system and the video switching system. According to one aspect of the present invention, a multi-computer switching system is proposed for operating a plurality of computers through at least one computer console. The computer console includes a keyboard, a screen, and a mouse. The multi-computer switching system includes a switching unit, a control unit and at least one sensing unit. The switching unit is connected to a computer console and a plurality of computers for switching the data flow between the computer console and the plurality of computers, so that the computer console can operate one of the plurality of computers. The control unit is connected to the switching unit for controlling the switching unit. The sensing unit forms a communication with the control unit to sense whether a substance body exists within a predetermined range, and accordingly outputs a sensing signal. The control unit controls the switching unit according to the sensing signal, and logs in or logs out of a management interface on the computer console. According to another aspect of the present invention, a multi-computer switching system is provided for operating a plurality of computers through at least one computer console. The computer console includes a keyboard, a screen and a mouse. The multi-computer switching system includes a switching unit, a control unit, and at least one sensing unit. The switching unit is connected to a computer operating console and a plurality of computers for switching the data flow between the computer console and the plurality of computers, so that the computer console can operate one of the plurality of computers. Control 7 200925873

—..._ The A unit is connected to the switching unit to control the switching unit. The sensing unit forms a communication with the control unit to sense whether an object exists within a predetermined range and accordingly output a sensing signal. The control unit controls the switching unit according to the sensing signal to display or hide a login/logout screen on the computer console. According to still another aspect of the present invention, a multi-computer switching system is provided for operating a plurality of computers through at least one computer console. The computer console includes a keyboard, a screen and a mouse. The multi-computer switching system includes a switching unit, a control unit and at least one sensing unit. The switching unit is connected to a computer operating console and a plurality of computers for switching the data flow between the computer console and the plurality of computers, so that the computer console can operate one of the plurality of computers. The control unit is connected to the switching unit for controlling the switching unit. The sensing unit forms a communication with the control unit to sense whether an object exists within a predetermined range and accordingly output a sensing signal. The control unit controls the switching unit according to the sensing signal to turn the screen on or off at the computer console. According to another aspect of the present invention, a multi-computer switching system is provided, which is used to operate a plurality of computers through at least one computer console. The computer console includes a keyboard, a screen and a mouse. The multi-computer switching system includes a switching unit, a control unit, and at least one sensing unit. The switching unit is connected to a computer operating console and a plurality of computers for switching the data flow between the computer console and the plurality of computers, so that the computer console can operate one of the plurality of computers. The control unit is connected to the switching unit for controlling the switching unit. The sensing unit forms a communication with the control unit to sense whether an object exists within a predetermined range and accordingly output a sensing signal. Wherein, the control unit is based on the sensing 8

) 68PA 200925873 Signal control switching unit displays or hides the operation information of the switching unit on the computer console. According to still another object of the present invention, a video switching system is provided for displaying a plurality of video sources through at least one screen. The video switching system includes a switching unit, a control unit and at least one sensing unit. The switching unit is connected to the screen and a plurality of video sources for switching the data flow between the screen and the plurality of video sources, so that the screen can display one of the plurality of video sources. The control unit is connected to the switching unit for controlling the switching unit. The sensing unit and the control unit ❹ form a communication for sensing whether an object exists within a predetermined range and outputting a sensing signal. The control unit controls the switching unit according to the sensing signal to display one of the plurality of video sources on the screen. In order to make the above description of the present invention more comprehensible, the following description of the preferred embodiments and the accompanying drawings will be described in detail as follows: [Embodiment] First Embodiment® Please refer to FIG. A schematic diagram of a Keyboard-Video-Mouse Switch (KVM Switch) 100 according to a first embodiment of the present invention, the multi-computer switching system 100 is configured to operate a plurality of consoles via at least one computer console (Conso 1 e) Computer PC1~PCN. The computer console CS includes a keyboard, a screen, and a mouse. The KVM switching system 100 includes a switching unit 110, a control unit 120, and at least one sensing unit 130. In the present embodiment, a plurality of computers PC1 to PCN, a computer operating station CS, and a sensing unit 130 are taken as an example for illustration. Switching unit 110 9

68PA 200925873 is connected with computer console CS and several computers PCI~PCN to switch the data flow between computer console CS and several computers PC1~PCN, so that computer console CS can control several computers PC1~PCN one. The control unit 120 is connected to the switching unit 110 for controlling the switching unit 110. For example, when the switching unit 110 switches the computer console CS to form communication with one of the computers PC2, the user can operate the computer PC2 by the computer console CS. The action of the operation includes input data and output data. The sensing unit 130 forms a communication with the control unit 120 for sensing whether an object exists within a predetermined range, and accordingly outputs a sensing signal S10. The control unit 120 controls the switching unit 110 according to the sensing signal S10, and logs in or logs out of a management interface on the computer console CS. The management interface is provided by the KVM switching system 100. The multi-computer switching system 100 can be operated after the user logs in to the management interface. When the user logs out of the management interface, the KVM switching system 100 cannot be operated. In general, when logging in to the management interface, the user needs to enter the account name and account password. When the user logs out of the management interface, he/she needs to trigger a logout option. ® Referring to FIG. 2, a control flow chart of the multi-computer switching system 100 in accordance with the first embodiment of the present invention is shown. First, in step 0102, the sensing unit 130 senses whether an object exists within a predetermined range, and outputs a sensing signal S accordingly. Next, in step 0104, the control unit 120 receives the sensing signal S10, and determines that the content of the sensing signal S10 represents the state of the "predetermined range existing object" or the state of "predetermined range non-existing object". If the sensing signal S10 represents the state of "the object exists within the predetermined range", then the step is entered.

68PA 200925873 0106 ; If the sensing signal S10 represents the state of "there is no object in the predetermined range", proceed to step 010 8 . In step 0106, the control unit 120 controls the switching unit 110 to log in to the management interface at the computer console CS. In step 0108, the control unit 120 controls the switching unit 110 to log out of the management interface on the computer console CS. The computer console CS and the multi-computer switching system 100 can be integrated into the same machine, such as an LCD KVM. The computer console CS and the multi-powered brain switching system 100 can also be independently set. The sensing unit 130 can be placed in a range of possible activities when the user operates the computer console CS. For example, the sensing unit 130 can be directly mounted on the screen of the computer console CS, or the sensing unit 130 can also be disposed near the screen of the computer console CS to sense whether there is a user within a predetermined range. In this way, it is possible to know whether the user has left the computer console CS. The sensing signal S10 of the sensing unit 130 can be transmitted to the control unit 120 in a wireless transmission manner or a wired transmission manner. In the present embodiment, the sensing unit 10 and the control unit 120 are connected in a wired transmission manner. As shown in FIG. 1 , the sensing unit 130 further includes a first connection port 131 . The control unit 120 further includes a second port 121. The first port 131 and the second port 121 are connected by a transmission line L, and the sensing signal S10 is transmitted to the control unit 120 via the first port 131, the transmission line L and the second port 121. When the user approaches the predetermined range of the sensing unit 130, the control unit 120 can know that the user is approaching the computer through the content of the sensing signal S10.

>68PA 200925873 The screen of the console CS, and then controls the switching unit 110 to automatically log in to the management interface at the computer console CS. In this way, the user can log in to the management interface immediately after approaching the computer console CS without having to specifically enter the account name and account password. On the other hand, when the user leaves the predetermined range of the sensing unit 130, the control unit 120 can know that the user has left the screen of the computer console CS through the content of the sensing signal S10, and then controls the switching unit 110 to operate the computer. The station CS automatically logs out of the management interface. In this way, the user can automatically log out of the management interface immediately when leaving the computer console CS without having to select a certain logout option. In addition, in some of the KVM switching systems 100 where the security requirements are high, the control mode of the control unit 120 has a high degree of security considerations. For example, in a state where the sensing signal S10 represents an object within a predetermined range, the control unit 120 still asks the user to input an account name and an account password at the computer console CS. The control unit 120 automatically logs out of the management interface at the computer console CS only in a state where the sensing signal S10 represents an object within a predetermined range. ❹ Second Embodiment Referring to Figure 3, there is shown a schematic diagram of a multi-computer switching system 200 in accordance with a second embodiment of the present invention. The multi-computer switching system 200 of the present embodiment is different from the KVM switching system 100 of the first embodiment in that the sensing unit 230 and the control unit 220 are connected in a wireless transmission manner, and the rest are not repeated. As shown in FIG. 3, the sensing unit 230 further includes a first wireless device 12

<68PA 200925873 The transmission module 231 further includes a second wireless transmission module 221, and the sensing signal S20 is transmitted to the control unit 220 via the first wireless transmission module 231 and the second wireless transmission module 221. When the computer console CS and the control unit 220 are far away, the connection of the sensing unit 230 and the control unit 220 by wireless transmission can save a long and messy transmission line. Alternatively, the sensing unit 230 can be disposed on a wall or a desktop according to the range of motion of the user, which is quite convenient. ❿ Third Embodiment Referring to Figure 4, there is shown a schematic diagram of a multi-computer switching system 300 in accordance with a third embodiment of the present invention. The multi-computer switching system 300 of the present embodiment is different from the multi-computer switching system 100 of the first embodiment in that the multi-computer switching system 300 of the present embodiment further includes a timing unit 340, and the rest are not heavy. Said. The timing unit 340 forms a communication with the control unit 120 for calculating the accumulated time T of the sensing signal S10 being one of the same states. The control unit ® 120 further controls the switching unit 110 according to the accumulated time T to log in or log out of the management interface on the computer console CS. Referring to FIG. 5, a control flow chart of the multi-computer switching system 300 according to the third embodiment of the present invention is shown. First, in step 0302, the sensing unit 130 senses whether an object exists within a predetermined range, and accordingly outputs a sensing signal S10, wherein the sensing signal S10 has a first state representing a "predetermined range of existing objects" and Represents the second state of "the object does not exist in the predetermined range." 13

68PA 200925873 Next, in step 0304, the timing unit 340 calculates the accumulated time T in which the sensing signal S10 continues to be in the same state, and returns to the accumulated time T when the state of the sensing signal S10 changes. Then, in step 0306, the control unit 120 determines whether the accumulated time T is greater than a predetermined time (e.g., 5 seconds). If the accumulated time T is greater than the predetermined time, step 0308 is performed; if the accumulated time T is not greater than the predetermined time, then return to step 0302. In step 0308, the control unit 120 determines that the © content of the sensing signal S10 represents the state of "the object in the predetermined range exists" or the state of "the predetermined range does not exist in the object". If the sensing signal S10 represents the state of "the object exists within the predetermined range", the process proceeds to step 0310; if the sensing signal S10 represents the state of "the object does not exist within the predetermined range", the process proceeds to step 0312. In step 0310, the control unit 120 controls the switching unit 110 to log in to the management interface at the computer console CS. In step 0312, the control unit 120 controls the switching unit 110 to log out of the management interface on the computer console CS. ® Please refer to Figure 6, which shows the timing chart of the state of the sensing signal S10 and the timing chart of the status of the login or logout of the management interface. In the present embodiment, the predetermined time is exemplified by 5 seconds. Between the 4th and 5th seconds, the sensing signal S10 represents the state in which no object exists within the predetermined range, but the accumulated time T is only 1 second. Therefore, the indication between the 4th and 5th seconds may be that the user accidentally deviates from the predetermined range, and the user does not leave the computer console CS. Thus, the control unit 120 does not perform the logout action in the 5th second. Between the 17th and 40th seconds, the sensing signal S10 represents no within the predetermined range.

'68PA 200925873 The state of the object exists, and its accumulated time T has exceeded the predetermined time (5 seconds) at the 22nd second. Therefore, between 17 and 22 seconds, the user does leave the computer console CS. Thus, the control unit 120 performs the logout operation after the 22nd second. Between the 40th and 42nd second, the sensing signal S10 represents the state of the object within the predetermined range, but the accumulated time Τ is only 2 seconds. Therefore, between the 40th and 42nd seconds, it is indicated that only an object has passed the predetermined range, and the user is not ready to operate the computer console CS. Thus, the control unit 120 does not perform the login action at the second time. Between the 50th and 60th second, the sensing signal S10 represents the state of the object within the predetermined range, and the accumulated time Τ has exceeded the predetermined time (5 seconds) at the 55th second. Therefore, between 50 and 60 seconds means that the user is indeed ready to operate the computer console CS. Thus, the control unit 120 performs the login operation after the 55th second. In this way, the control unit 120 can more accurately determine whether the user actually leaves the computer console cs or prepares to operate the computer console cs through the data of the sensing signal S10 and the accumulated time ,, thereby avoiding The dilemma of misjudgment. Of course, in some KVM switching systems 300 where the security requirements are high, the control unit 120 has a high security consideration. For example, in a state where the sensing signal S10 represents an object within a predetermined range, the control unit 120 still asks the user to input an account name and an account password at the computer console CS. Only when the sensing signal S10 represents that there is no object within the predetermined range, and the accumulated time Τ is greater than the predetermined time, the control unit 120 only from 15 200925873

Swollen A moves to perform the logout action. Fourth Embodiment A schematic diagram of a multi-computer switching system 400 according to a fourth embodiment of the present invention will be described with reference to FIG. The multi-computer switching system 400 of the present embodiment is different from the multi-computer switching system 100 of the first embodiment in that the multi-computer switching system 4 of the embodiment is operated by a plurality of computers pci~pCN and several computers. The stations CS1 to CSN and the plurality of sensing units 430 (1) to 430 (N) are described as examples, and the rest of the same points are not repeated. As shown in Fig. 7, each of the sensing units 430 to 43 (N) corresponds to one of a plurality of computer stations CS1 to CSN. The control unit controls the switching unit 11 to log in or log out of the management interface according to the received sensing signals S41 to S4N. The control unit 120 processes the received sensing signals S41 to S4N, respectively, and controls the corresponding computer stations CS1 to CSN. The computer operations a CS1 to CSN can be designed to operate independently without interfering with each other. σ 第五 Fifth Embodiment Referring to Figure 8, a schematic diagram of a multi-brain switching system 500 in accordance with a fifth embodiment of the present invention is shown. The multi-computer switching system of the present embodiment is different from the multi-computer switching system of the first embodiment in that the multi-computer switching system 500 of the present embodiment further includes a signal conversion unit ^0 and a signal conversion unit 560 (1). ~560 (Ν), the rest are no longer the same

The 968PA 200925873 signal conversion unit 550 is electrically connected to the computer console CS, the sensing unit 130, the control unit 120, and the switching unit 110. The signal conversion unit 550 is configured to respectively convert the signal C (such as the mouse signal, the keyboard signal and the screen signal) of the computer console CS and the sensing signal S10 into the first differential signal N1 and the second differential signal M2, respectively. It is passed to the switching unit 110 and the control unit 120. On the contrary, the signal conversion unit 550 can also convert the first differential signal N1 to the signal C of the computer station CS and transmit it to the computer operating station CS. The signal conversion units 560 (1) to 560 (N) are electrically connected to the computers PC1 to PCN and the switching unit 110, respectively. The signal conversion units 560 (1) to 560 (N) convert the signals P1 to PN of the computers PC1 to PCN into third differential signals N3 (1) to N3 (N), and transmit them to the switching unit 110. In contrast, the signal conversion units 560(1) to 560(N) can also convert the third differential signals N3(1) to N3(N) to the signals P1 to PN of the computers PC1 to PCN and transmit them to the computers PC1 to PCN. Therefore, the signal C of the original computer console CS (including the mouse signal, the 10 keyboard signal, the screen signal) and the sensing signal S10 need four transmission lines for transmission, and the signal conversion unit 550 converts the signals by using the signal mixing coding technology. For the first differential signal N1 and the second differential signal N2, only one transmission line is needed for transmission. Not only the wire is reduced, but also the number of plugs of the transmission line is reduced, which is quite convenient to use. Sixth Embodiment Referring to Figure 9, a multi-power according to a sixth embodiment of the present invention is shown.

58PA 200925873 Schematic diagram of the brain switching system 600. The multi-computer switching system 600 of the present embodiment is different from the multi-computer switching system 100 of the first embodiment in that the multi-computer switching system 600 of the present embodiment further includes a first signal conversion unit 670 and a second signal conversion unit. 680, the rest of the same points are not repeated. The first signal conversion unit 670 is electrically connected to the computer console CS and the sensing unit 130 for converting the signal C of the computer console CS and the sensing signal S to a differential signal N. The second signal conversion unit 680 is connected to the first signal conversion unit 670, the control unit 120, and the switching unit 110. After receiving the differential signal N, the second signal conversion unit 680 converts the differential signal N into the signal C and the sensing signal S of the computer station CS, and transmits them to the switching unit 110 and the control unit 120, respectively. On the other hand, the second signal conversion unit 680 is a differential signal N of the computer console CS outputted by the switchable switching unit 110. After receiving the differential signal N, the first signal conversion unit 680 converts the differential signal N into a computer. The signal C of the console CS is transmitted to the computer console CS. In addition, while the second signal conversion unit 680 converts the signal, it further compensates for the intensity of the amplified signal or the attenuation of the transmission path so that the signal can be transmitted further. 7 is a schematic diagram of a multi-computer switching system 700 according to a seventh embodiment of the present invention, and FIG. 11 is a diagram showing a seventh embodiment of the present invention. The control flow chart of the computer switching system 700. The multi-computer switching system 700 of the present embodiment and the third embodiment 18

The difference between the 58PA 200925873 and the multi-computer switching system 300 is that the control unit 720 controls the switching unit 110 according to the sensing signal S10 to display or hide a login/logout screen on the computer console CS, and the rest of the same is not repeated. The login/logout page provides a login option and a logout option. After the login option is triggered, the login/logout page further provides a user account block and a user password field for the user to input the user account and the user password to log in to the PC1~PCN. When the logout option is triggered, the KVM switch system 700 logs out of the computer. ❹ In step 0710, the control unit 720 controls the switching unit 110 to display the login/logout screen on the computer console CS. In step 0712, the control unit 720 controls the switching unit 110 to hide the login/logout screen on the computer console CS. In this embodiment, the sensing unit 130 is disposed near the screen of the computer console CS. When the user approaches the screen of the computer console CS, the control unit 720 controls the switching unit 110 to automatically display the login/logout screen on the screen of the computer console CS. In this way, the user does not need to specifically press a button to display the login/logout page. On the other hand, when the user leaves the screen of the computer console CS, the control unit 720 controls the switching unit 110 to automatically hide the login/logout screen on the screen of the computer console CS. In this way, the user does not need to specifically press a button to hide the login/logout. Eighth embodiment, please refer to FIG. 12 and FIG. 13, and FIG. 12 is a view of the present invention.

68PA 200925873 A schematic diagram of a KVM switching system 800 of the eighth embodiment, and FIG. 13 is a control flow diagram of the KVM switching system 800 in accordance with an eighth embodiment of the present invention. The multi-computer switching system 800 of the present embodiment is different from the multi-computer switching system 300 of the third embodiment in that the control unit 820 controls the switching unit 110 according to the sensing signal S10 to turn the screen on or off at the computer station CS. In step 0810, the control unit 820 controls the switching unit 110 to turn on the screen on the computer console CS. ❿ In step 0812, the control unit 820 controls the switching unit 110 to turn off the screen on the computer console CS. In this embodiment, the sensing unit 130 is disposed near the screen of the computer console CS. When the user approaches the screen of the computer console CS, the control unit 820 controls the switching unit 110 to automatically display the screen on the computer console CS. In this way, the user does not need to specifically press a button to display the screen. On the contrary, when the user leaves the screen of the computer console CS, the control unit 820 controls the switching unit 110 to automatically close the screen on the computer console CS. In this way, the user does not need to specifically press a button to close the screen. Ninth Embodiment Referring to FIG. 14 and FIG. 15, FIG. 14 is a schematic diagram of a multi-computer switching system 900 according to a ninth embodiment of the present invention, and FIG. 15 is a diagram showing a multi-computer according to a ninth embodiment of the present invention. The control flow chart of the switching system 900. The multi-computer switching system 900 of this embodiment is more than the third embodiment.

»68PA 200925873 The computer switching system 300 is different in that the control unit 920 controls the switching unit 110 according to the sensing signal S10, and displays or hides the operation information of one of the switching units 110 on the computer operating station CS, and the rest of the same is not repeated. The operation information is used to display information required by various users, such as "connected computer name", "user account" or "switch computer option". In step 0910, the control unit 920 controls the switching unit 110 to display the operation information of the switching unit 110 on the computer console CS. © In step 0912, the control unit 920 controls the switching unit 110 to hide the operation information of the switching unit 110 from the computer console CS. Tenth Embodiment Referring to Figure 16, there is shown a schematic diagram of a video switching system 1000 in accordance with a tenth embodiment of the present invention. The video switching system 1000 is configured to display a plurality of video sources DS1 DSDSN through at least one screen D. The video switching system 1000 includes a switching unit 1010, a control unit 1020, and at least one sensing unit 1030. In the embodiment, the video switching system 1000 is described by taking one screen D, a plurality of video sources DS1 DSDSN and one sensing unit 1030 as an example. The switching unit 1010 is connected to the screen D and the plurality of video sources DS1 to DSN. The switching unit 1010 is configured to switch the data flow between the screen D and the plurality of video sources DS1 to DSN, so that the screen D can display one of the plurality of video sources DS1 to DSN. The control unit 1020 is connected to the switching unit 1010. The control unit 1020 is configured to control the switching unit 1010. The sensing unit 1C30 forms a communication with the control unit 1020. Sensing unit 21

68PA 200925873

The 1030 is configured to sense whether an object exists within a predetermined range, and accordingly output a sensing signal S100. The control unit 1020 controls the switching unit 1010 according to the sensing signal S100, and displays one of the video sources DS1 DSDSN on the screen D. Please refer to FIG. 17, which illustrates the control of the video switching system 1000 according to the tenth embodiment of the present invention. flow chart. First, in step 1002, the sensing unit 1030 senses whether an object exists within a predetermined range, and accordingly outputs a sensing signal S100. ❹ Next, in step 1004, the control unit 1020 receives the sensing signal S100, and determines that the content of the sensing signal S100 represents the state of "the object in the predetermined range exists" or the state of the "predetermined range does not exist the object". If the sensing signal S100 represents the state of "the object exists within the predetermined range", the process proceeds to step 1006; if the sensing signal S100 represents the state of "the object does not exist within the predetermined range", the process proceeds to step 1008. In step 1006, the control unit 1020 controls the switching unit 1010 to display a video source (for example, the video source DS1) on the screen D. ❿ In step 1008, the control unit 1020 controls the switching unit 1010 to display another video source (for example, the video source DS2) on the screen D. For example, when the video switching system 1000 of the embodiment is applied to a store, the sensing unit 1030 can be disposed at the entrance of the store. In a state where "the object does not exist within the predetermined range", the control unit 1020 controls the switching unit 1010 to play the "store image advertisement" message on the screen D. In a state where "the object exists in the predetermined range", the control unit 1020 controls the switching unit 1010 to play the message "Welcome" on the screen D. Such a 22 200925873

'68PA, the screen D can play the message of "store image advertisement", and the message "Welcome" can also be played when the customer enters the door. Eleventh Embodiment Referring to Figure 18, there is shown a control flow chart of a video switching system 11 according to an eleventh embodiment of the present invention. The multi-computer switching system 1100 of the present embodiment is different from the multi-computer switching system 1 of the tenth embodiment in that the video switching system 11 of the embodiment is a screen D, © a plurality of video sources DS1. ~DSN and several sensing units 1130 (1) ~ 1130 (N) are taken as an example for description - the rest of the similarities will not be repeated. Each of the sensing units 1130 (1) to 1130 (N) corresponds to one of the plurality of video sources DS1 to DSN. The control unit 1〇2〇 receives one of the sensing lists

The sensing signals sill~S11N generated by the elements 1130 (1) to 1130 (N) are followed by the control switching unit 1010 displaying the corresponding video sources DS1 to DSN on the screen D. For example, when the video switching system 11 of the present embodiment is applied to a marketplace, the respective sensing units 1130(1) to 1130(N) can be disposed at various merchandise displays. When the sensing signals corresponding to the respective products - SI 1N represent the state of "there is no object in the predetermined range", the control unit 1020 controls the switching unit 1〇1 to play the "various commercial continuous advertisements" on the screen D. . When the sensing signal S111 corresponding to the A product represents the state of "the object exists within the predetermined range", the control unit 1〇2 controls the switching unit 1010 to play the message of "A product advertisement" on the screen D. In this way, the screen D can play the message of "continuous advertisement of various commodities".

;8PA 200925873 When playing near a certain product, you can also play on the screen D. "The hard work of this product." Twelfth embodiment

Referring to Figure 19, there is shown a schematic diagram of a video switching system 1200 in accordance with a twelfth embodiment of the present invention. The multi-computer switching system 1200 of the present embodiment is different from the multi-computer switching system of the tenth embodiment in that the video switching system of the present embodiment is configured by a plurality of curtains ρ 1~(10), A plurality of video sources DS1 to DSN and a plurality of sensing units 123 〇 丨 23 〇 (N) are taken as an example for description, and the rest of the similarities are not repeated. Each of the sensing units 1230 (1) to 1230 (N) corresponds to one of the screens D1 to DN' and is disposed on the corresponding screens D1 to DN. The control unit 1020 controls the switching unit 1αι to display one of the video sources DS1 DSDSN according to the sensing signals S121 S S12N generated by the sensing units 1230 ( 1 ) to 123 〇 (N). ~ For example, when the video switching system 1 2 of the present embodiment is used in a store, each of the sensing units 1230 (1) to 1230 (Ν) and the screens D1 to DN of the & Merchandise display. When the sensing signal S121 corresponding to the defective product represents the bear of the "there is no object in the predetermined range", the control unit 1020 controls the switching unit 1 to play any message on the corresponding screen D1 =. When the sensing signal S121 corresponding to the A product represents the state of "the object exists within the predetermined range", the control unit 1020 controls the switching unit 1010 to play the message "A product advertisement" on the screen D1 corresponding to the A product. In this way, each screen D1 ~ DN does not broadcast the message, only when the user is close to the corresponding product: broadcast on the screen Dl, D2, or DN 24

58PA 200925873 Put the message "This product ad". In the above, the present invention has been disclosed in the above preferred embodiments, but it is not intended to limit the present invention. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the invention. Therefore, the scope of the invention is defined by the scope of the appended claims.

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8PA 200925873 [Simplified description of the drawings] FIG. 1 is a schematic diagram of a multi-computer switching system according to a first embodiment of the present invention; FIG. 2 is a flowchart showing a control flow of a multi-computer switching system according to a first embodiment of the present invention; FIG. 3 is a schematic diagram of a multi-computer switching system according to a second embodiment of the present invention; FIG. 4 is a schematic diagram of a multi-computer switching system according to a third embodiment of the present invention; A control flow chart of the multi-computer switching system according to the third embodiment of the present invention; FIG. 6 is a timing chart showing the state of the sensing signal and a time table of the state of the management interface login or logout; FIG. 7 is a diagram showing the state according to the present invention. 4 is a schematic diagram of a multi-computer switching system according to a fifth embodiment of the present invention; FIG. 9 is a schematic diagram of a multi-computer switching according to a sixth embodiment of the present invention; FIG. 10 is a schematic diagram of a multi-computer switching system according to a seventh embodiment of the present invention; FIG. 11 is a diagram showing control of a multi-computer switching system according to a seventh embodiment of the present invention; Chart; FIG .12 shows a first embodiment in accordance with an eighth embodiment of the present invention, many computer switching system 26

68PA 200925873 is not intended, FIG. 13 is a control flow chart of a multi-computer switching system according to an eighth embodiment of the present invention; FIG. 14 is a schematic diagram of a multi-computer switching system according to a ninth embodiment of the present invention; 15 is a control flowchart of a multi-computer switching system according to a ninth embodiment of the present invention; FIG. 16 is a schematic diagram of a video switching system © according to a tenth embodiment of the present invention; 10 is a control flow chart of a video switching system according to an eleventh embodiment; FIG. 18 is a control flow chart of a video switching system according to an eleventh embodiment of the present invention; and FIG. 19 is a view showing a video according to a twelfth embodiment of the present invention. A schematic diagram of the switching system. ❹ [Main component symbol description] 100, 200, 300, 400, 500, 600, 700, 800, 900: KVM switching system 110: switching unit 120, 220, 720, 820, 920: Control unit 121: Second connection埠130, 230, 430 (1), 430 (2), 430 (N): sensing unit 131: second port 埠 27

8PA 200925873 2 21 . The first wireless transmission module 231 : the first wireless transmission module 340 : the timing unit 550 , 560 ( 1 ), 560 ( 2 ), 560 (N): the signal conversion unit 670: the first signal conversion Unit 680: second signal conversion unit 1000, 1100, 1200: video switching unit 1010: switching unit ❹ 1020: control unit 1030, 1130 (1), 1130 (2), 1130 (N), 1230 (1), 1230 ( 2), 1230 (N): Sensing unit C: Signals of the computer console CS, CS1, CS2, CSN: Computer console D, D Bu D2, DN: * Screen DS1, DS2, DSN: Video source L: Transmission line ® N : Differential signal N1 : First differential signal N2 : Second differential signal N3 (1), N3 (2), N3 (N): Third differential signal PI, P2, P3: Computer signal ΡΠ , PC2, PCN: computer S10, S20, S100, S4, S42, S4N, SI U, S112, SI 1N, S121, S122, S12N: sensing signal 28 200925873

68PA T : Cumulative time ❹ ❹ 29

Claims (1)

8PA 200925873 X. Patent application scope: 1. A keyboard-Vi deo-Mouse Switch (KVM Switch) for operating a plurality of computers through at least one computer console (Console), the computer console includes a keyboard, a screen and a mouse, the multi-computer switching system includes: a switching unit connected to the computer console and the plurality of computers for switching data between the computer console and the plurality of computers Flowing, enabling the computer console to operate one of the plurality of computers; ❹ a control unit coupled to the switching unit for controlling the switching unit; and at least one sensing unit forming communication with the control unit for Sensing whether an object exists within a predetermined range, and outputting a sensing signal, and the sensing signal has a first state, representing a predetermined range of objects and a second state, representing that the predetermined range does not exist; The control unit controls the switching unit according to the sensing signal, and logs in or logs out a management interface at the computer operating station. 2. The multi-computer switching system of claim 1, further comprising: a timing unit configured to communicate with the control unit to calculate a cumulative time that the sensing signal continues to be in the same state, wherein the The control unit further controls the switching unit according to the accumulated time, and logs in or logs out of the management interface at the computer console. 3. The multi-computer switching system according to claim 2, wherein if the sensing signal represents that the object does not exist within the predetermined range 30 200925873 58PA = change = tired = greater than a predetermined time, then the control The unit controls the nrr brain console to board or log out of the management interface. In the multi-computer switching system described in item 1 (4), the computer switching system is connected to a plurality of computer operating stations, and the multi-computer cutting system further includes a plurality of sensing units on the plurality of computer operating stations. One of them 4] early = corresponding ❹ test signal 'controls the switching unit to log in or log out of the management interface in the corresponding computer.苴中二. The multi-computer switching system described in the first paragraph of the patent application scope, the sensing unit and the control unit are connected by a wired transmission method. The multi-computer switching system of claim 5, wherein the sensing unit further comprises a first port, the control unit includes a second port 该 the first port and the The second connection is connected by a transmission line, and the sensing signal is transmitted to the control unit via the first connection port, the transmission line and the second connection port. The multi-computer switching system of claim 1, wherein the sensing unit and the control unit are connected in a wireless transmission manner. The multi-computer switching system of claim 7, wherein the sensing unit further comprises a first wireless transmission module, the control unit includes a first wireless transmission module, and the sensing signal The control is transmitted to the control unit via the first wireless transmission module and the second wireless transmission module. 9. The KVM switching system of claim 1, wherein the sensing unit is disposed adjacent to the screen. 31 200925873 8PA In-^Package County (4) 1 item multi-computer switching system, - money conversion unit, and the electric lining to turn the unit electrical connection 'The signal conversion unit is used to convert the computer console separately The post and the sensational county H motion message - the second differential yell and pass to the switching unit and the control unit. ··^亚刀, 11·If the application of the multi-electric rib replacement system in the scope of the scope of the application, further includes: a first signal conversion unit electrically connected to the computer console and the sensing unit for converting the signal of the electric work station and the sensing signal to a differential signal; and a second signal conversion unit, Connected to the first signal conversion unit, after receiving the differential signal, the differential signal is converted into a signal number of the computer console and the sensing signal. The multi-computer switching system of claim 1, wherein the control unit controls the switching unit if the sensing signal represents the presence of the object within the predetermined range. The console logs into the management interface. 13. The multi-computer switching system according to claim 1, wherein if the sensing signal represents a state in which the object does not exist within the predetermined range, the control unit controls the switching unit at the computer console Log out of the management interface. A keyboard-Video-Mouse Switch (KVM Switch) for operating a plurality of computers through at least one computer console 32 68PA 200925873 (Console), the computer console including a keyboard, a screen and a The multi-computer switching system includes: a switching unit connected to the computer console and the plurality of computers for switching data flow between the computer console and the plurality of computers, so that the computer console Having operated one of the plurality of computers; a control unit coupled to the switching unit for controlling the switching unit; and at least one sensing unit configured to communicate with the control unit for sensing within a predetermined range Whether there is an object, and a sensing signal is outputted, and the sensing signal has a first state, representing a predetermined range of objects and a second state, representing that the predetermined range does not exist; wherein the control unit is configured according to the The sensing signal controls the switching unit to display or hide a login/logout screen on the computer console. 15. The multi-computer switching system of claim 14, wherein if the sensing signal represents a state of the object within the predetermined range, the control unit controls the switching unit to display the computer operating station The login/logout page is displayed. 16. The KVM switching system of claim 14, wherein the control unit controls the switching unit if the sensing signal represents a state in which the object does not exist within the predetermined range. Hide this login/logout page. 17. The multi-computer switching system according to claim 14, further comprising: a timing unit configured to communicate with the control aglyph to calculate the sense 33 ί8ΡΑ 200925873 the test signal continues to be one of the same state The control unit further controls the switching unit according to the accumulated time, and displays or hides the login/logout screen on the computer console. 18. The KVM switching system of claim 17, wherein the sensing signal is a state in which the object does not exist within the predetermined range, and the accumulated time is greater than a predetermined time. The unit controls the switching unit to hide the login/logout screen on the computer console. ❹ 19. A keyboard-Video-Mouse Switch (KVM Switch) for operating a plurality of computers via at least one computer console (Conso 1 e), the computer console including a keyboard, a screen and a The multi-computer switching system includes: a switching unit connected to the computer console and the plurality of computers for switching data flow between the computer console and the plurality of computers, so that the computer console Having operated one of the plurality of computers; a control unit coupled to the switching unit for controlling the switching unit; and at least one sensing unit configured to communicate with the control unit for sensing a predetermined range Whether there is an object and a sensing signal is outputted, and the sensing signal has a first state, representing a predetermined range of objects and a second state, representing that the predetermined range does not exist; wherein the control unit is The sensing signal controls the switching unit to turn the screen on or off at the computer console. 20. The multi-computer switching system of claim 19, wherein the sensing unit controls the switching unit if the sensing signal represents a state of the object within the predetermined range. The computer console turns on the screen. 21. The multi-computer switching system according to claim 19, wherein if the sensing signal represents a state in which the object does not exist within the predetermined range, the control unit controls the switching unit at the computer console Close the screen. 22. The multi-computer switching system of claim 19, further comprising: a timing unit configured to communicate with the control unit to calculate a cumulative time that the sensing signal continues to be in the same state, wherein The control unit further controls the switching unit according to the accumulated time, and the screen is turned on or off at the computer console. 23. The multi-computer switching system according to claim 22, wherein if the sensing signal represents a state in which the object does not exist within the predetermined range, and the accumulated time is greater than a predetermined time, the control unit controls ® The switching unit is used to close the screen at the computer console. 24. A Keyboard-Video-Mouse Switch (KVM Switch) for operating a plurality of computers through at least one computer console including a keyboard, a screen and a mouse The multi-computer switching system includes: a switching unit connected to the computer console and the plurality of computers for switching data flow between the computer console and the plurality of computers, so that the computer console can be operated One of the plurality of computers; 35 68PA 200925873 ... - control unit, connected to the switching unit for controlling the switching unit, and - prefabricated unit, touch (four) unit forming rib for sensing; Whether there is - object 'and according to the output - sense message"; sense: has a first state, representing the existence of a predetermined range of objects and a second state, representing the object does not exist in the predetermined range; (four) the control (four) yuan _ the sense The test signal (4) (4) is changed into a unit, and the operation information of one of the switching units is hidden or hidden. 25 "The right computer switching system as described in claim 24 of the patent application scope" Line sensing signal representative of the predetermined range to the object memory ^ 'the control unit controls the switching unit to the computer operating the operation switch port should Ying unit of information. 26. If the multi-computer switching system described in item 100 of the patent application scope is ^= _, the object does not exist within the predetermined range: switching Ϊ control to control the switching unit as early as the computer operation This information about the operation of Taichung's suspension and switching. ^ The multi-computer switching system described in claim 24, further comprising: a timing unit, forming communication with the control unit for calculating a cumulative time in which the number continues to be the same-state; Control == indicates the juice time to control the switching unit to display or hide the operation information of the switching unit at the computer console. 28. The multi-computer switching system of claim 1, wherein the sensing signal represents a state in which the object 36 8PA 200925873 does not exist within the predetermined range, and the accumulated time is greater than a predetermined time And the control unit controls the switching unit, and the operation information of the switching unit is hidden by the computer console. 29. A video switching system for displaying a plurality of video sources through at least one screen, the video switching system comprising: a switching unit connected to the screen and the plurality of video sources for switching the screen and the plurality The data stream between the video sources enables the screen to display one of the plurality of video sources; a control unit coupled to the switching unit for controlling the switching unit; and a sensing unit formed with the control unit The communication is used to sense whether there is an object in the enclosure, and according to the output-sensing signal; wherein the control unit controls the switching unit according to the sensing signal, and displays the One of a plurality of video sources. 30. The video switching system of claim 29, further comprising a plurality of sensing units, each of the sensing units corresponding to a plurality of video sources, the (four) unit system «each_testing material generated = sensing signal, controlling the switching unit to display one of the plurality of video sources corresponding to the screen. For example, please refer to the video switching system described in claim 29 of the patent scope, 统::: electrically connected to a plurality of screens, the video switching system sensing unit, each of the sensing units corresponding to the eighth One of the control units controls the switching unit to display one of the plurality of video sources on each of the corresponding screens according to the sensing signals generated by the sensing units 37 37PA 200925873. The video switching system of claim 29, wherein the sensing unit further comprises a first port, the control unit further comprising a second port, the first port and the second connection The tether is connected by a transmission line, and the sensing signal is transmitted to the control unit via the first connection port, the transmission line and the second connection port. 33. The video switching system of claim 29, wherein the sensing unit further comprises a first wireless transmission module, the control unit further comprising a second wireless transmission module, the sensing signal system And transmitting to the control unit via the first wireless transmission module and the second wireless transmission module. 38