TWI382327B - Keyboard, video, mouse switch (kvm switch), and setting method, data transmission method, file sharing method for mutiple hosts and the kvm switch, and a dongle therefor - Google Patents

Description

Multi-computer switcher and setting method thereof with multiple hosts, data transmission method, file sharing method and transmitter thereof

The invention relates to a KVM switch and a setting method thereof, a data transmission method and a file sharing method and a transmitter thereof, and particularly relates to a software and hardware between a plurality of hosts connected thereto A multi-computer switcher for sharing functions and a setting method thereof, a data transmission method and a file sharing method, and a transmitter thereof.

A keyboard switch (Keyboard, Video, Mouse switch, KVM switch) has been widely used to control N computers or servers via a set of keyboards, video devices, and mice. N is a positive integer. Compared with N computers or servers, the N-type keyboard, video screen, and mouse are used. By using the KVM switch, you can save the N-1 keyboard, video screen, and mouse.

However, the traditional KVM switch can only share the keyboard, video device, and mouse, but the software and hardware resources of N computers or servers are still not shared. Thus, in order to achieve certain functions, the N computers or servers are likely to need to install the same software, so that the user must purchase enough software to meet the needs. In this way, the cost of the entire system will increase, and there will be a waste of resources. Therefore, how to make the N computers or servers connected to the KVM switch have the function of sharing hardware and software resources is one of the topics of the industry.

The invention relates to a KVM switch and a setting method thereof, a data transmission method and a file sharing method and a transmitter thereof, which can have a software and hardware sharing function between multiple hosts connected thereto. In this way, the storage capacity and computing power between the hosts can be more effectively allocated to achieve cost saving and improve the efficiency of use of these hosts.

According to a first aspect of the present invention, a method for setting a KVM switch and a multi-master is provided, and the KVM switch stores an application. The method includes the following steps: after the KVM switch is connected to a first host and a second host, the KVM switch lists the first host and the second host as a first mass storage device; the KVM switch to the first a host and a second host upload an application; after the first host and the second host execute the application, the KVM switch collects at least the software installation information of the second host; the KVM switch re-lists the first host to the first host A plurality of storage devices, and a composite device corresponding to one of the second host and the second plurality of storage devices, and the KVM switch uploads the software installation information of the collected second host to the first host.

According to a second aspect of the present invention, a method for multi-master data transmission through a KVM switch is provided, comprising the steps of: a first host inquiring about a device type of a KVM switch connected to a first host, a KVM switch Further coupled to the at least one second host, the KVM switch stores an application; the first host sets the KVM switch as a first mass storage device; the first host receives the application from the KVM switch, and executes Application; the first host re-sets the KVM switch to the first mass a storage device and a composite device corresponding to at least one second mass storage device of the second host, the first host receiving the software installation information of the second host from the KVM switch.

According to a third aspect of the present invention, a KVM switch is provided for connecting a keyboard, a mouse, a video device and a plurality of hosts. The KVM switch includes a microprocessor, a memory unit, a first device controller, and a second device controller. The microprocessor is used to control the signal transmission path of the keyboard, the mouse, and the video device. The memory unit is electrically connected to the microprocessor and is used to store an application. The first device controller is electrically connected to a first host and is controlled by the microprocessor. The second device controller is electrically connected to a second host and controlled by the microprocessor. The KVM switch lists the first host and the second host as a first mass storage device, and after the first host and the second host receive and execute the application, the KVM switch collects at least the software installation of the second host. Information, the KVM switch and re-listed to the first host as a first mass storage device and a composite device corresponding to one of the second host and the second mass storage device, the KVM switch and uploading the collected second host software Install information to the first host.

According to a fourth aspect of the present invention, a KVM switch is provided for a user to control a plurality of hosts through a keyboard, a mouse, and a video device. The KVM switch includes a microprocessor and a memory unit. The microprocessor is used to control the signal transmission path between the keyboard, the mouse, the video device and the multi-host. The memory unit is electrically connected to the microprocessor and stores an application to upload the application when multiple hosts are connected to the KVM switch. To each host, and generate virtual mass storage devices on each host, establish a data transmission pipeline between multiple hosts.

According to a fifth aspect of the present invention, a method for multi-host file sharing through a KVM switch is proposed. The method includes the following steps: providing a KVM switch, the KVM switch is coupled to a first host and a second host; and the KVM switch, the first host adds a virtual amount corresponding to the second host a storage device; the first host accesses the second host through the KVM switch.

According to a sixth aspect of the present invention, a transmitter is provided for coupling a KVM switch and a host. The KVM switch is connected to multiple hosts through multiple transmitters for users to control some hosts through the keyboard, mouse and video device. The transmitter includes a device controller, a processing unit, and a storage unit. The device controller is used to connect to the host. The processing unit is electrically connected to the device controller for controlling signal transmission between the KVM switch and the connected host. The storage unit is electrically connected to the processing unit and stores an application. When the host is connected to the KVM switch through the transmitter, and the KVM switch is connected to the host, the processing unit uploads the application to the connected host, and generates a virtual mass storage device on the host to establish multiple hosts. The data transmission pipeline between the two.

In order to make the above-mentioned contents of the present invention more comprehensible, a preferred embodiment will be described below, and in conjunction with the drawings, a detailed description is as follows:

The KVM switch of the present invention is provided for the user Control multiple hosts through the keyboard, mouse and video device. The KVM switch includes at least a microprocessor and a memory unit. The microprocessor is used to control the signal transmission path between the keyboard, the mouse, the video device and the multi-host. The memory unit is electrically connected to the microprocessor and stores an application program. When multiple hosts are connected to the KVM switch, the application is uploaded to each host, and a virtual mass storage device is generated on each host (mass storage device). ), establish a data transmission pipeline between multiple hosts.

The invention further provides a setting method of a multi-computer switch and a multi-host. The KVM switch stores the application. The method includes the following steps: after the KVM switch is connected to the first host and the second host, the KVM switch lists the first host and the second host as the first mass storage device; the KVM switch to the first host Uploading an application with the second host; after the first host and the second host execute the application, the KVM switch collects at least the software installation information of the second host; the KVM switch re-lists the first host to the first mass storage And a multi-computer switch and a software installation information of the collected second host to the first host. The embodiments are described in detail below.

First embodiment

Please refer to FIG. 1 , which is a block diagram of a KVM switch according to a first embodiment of the present invention. The KVM switch 100 is used for the user to control a plurality of hosts through a keyboard 102, a mouse 104, and a video device 106. Such hosts are, for example, the first host 108, the second host 110, and the like. . The KVM switch 100 includes a microprocessor 116, a memory unit 118, and a plurality of device controllers. The plurality of device controllers include, for example, a first device controller 120, a second device controller 122, and the like.

The microprocessor 116 is used to control the signal transmission path of the keyboard 102, the mouse 104, and the video device 106. The memory unit 118 is electrically connected to the microprocessor 116 and is used to store an application. This application is preferably an auto-run program. The first device controller 120 is configured to be electrically connected to the first host 108 and controlled by the microprocessor 116. The second device controller 122 is configured to be electrically connected to the second host 110 and controlled by the microprocessor 116.

In operation, the KVM switch 100 will enumerate the first host 108 and the second host 110 as the first mass storage device, and after the first host 108 and the second host 110 receive and execute the application, the multi-computer switch The device 100 collects at least the software installation information of the second host 110. Thereafter, the KVM switch 100 re-enumerates the first plurality of storage devices and the composite device corresponding to the second mass storage device of the second host 110 to the first host 108. The KVM switch 100 uploads the collected software installation information of the second host 110 to the first host 108.

For example, the first mass storage device is, for example, a CD player, and the first host 108 and the second host 110 will automatically execute an application stored in the CD player. The second mass storage device is, for example, a hard disk. Thus, in this example, after the KVM switch 100 is enumerated to the first host 108, the state of the first host 108 will transition to a state in which it is connected to one of the CD players corresponding to the KVM switch. And the KVM switch 100 is the first After the host 108 is re-listed, the state of the first host 108 will be changed to a state in which it is connected to one of the corresponding CD-ROM switches and to a hard disk corresponding to the second host 110.

The KVM switch 100 may further include a third device controller 124 and a fourth device controller 126. The third device controller 124 is configured to be electrically connected to the third host 112 and controlled by the microprocessor 116. The fourth device controller 126 is configured to be electrically connected to the fourth host 114 and controlled by the microprocessor 116.

The KVM switch 100 further includes a host controller 128 and a video switcher 130. The host controller 128 is coupled to the keyboard 102 and the mouse 104 and is controlled by the microprocessor 116. The video switcher 130 is coupled to the video device 106, the first host 108, and the second host 110, and is controlled by the microprocessor 116. The microprocessor 116 transmits a switching signal to the video switcher 130 to transmit the video signals of one of the first to fourth hosts 108, 110, 112 and 114 to the video device 106 to display the corresponding picture.

The above enumeration and re-enumeration actions are preferably achieved by the microprocessor 116. Moreover, in another approach, the host controller 128 can also be integrated into the microprocessor 116.

Please refer to FIG. 2, which illustrates an example of a flow chart of a method for multi-master data transmission through the multi-computer switcher of FIG. The KVM switch 100 is described as an example of a universal serial bus (USB) interface connected to a plurality of hosts, a keyboard 102, and a mouse 104. Thus, the first and second mass storage devices are USB mass storage devices, and the host controller 128 is a USB host controller. The device controller is a USB device controller. However, the invention is not limited thereto. It is also within the scope of the invention to use other types of interfaces to interface with multiple hosts. The keyboard 102 and the mouse 104 can also be connected to the KVM switch 100 through other interfaces, such as the PS2 interface.

The first host 108 and the second host 110 are taken as an example for illustration. The method includes the following steps. First, in step 202, the first host 108 queries the device type of the KVM switch 100 connected to the first host 108. Next, in step 204, the KVM switch 100 enumerates the first host 108 and the second host 110 as a composite device of the first mass storage device and the standard keyboard and the mouse. Then, in step 206, the first host 108 sets the KVM switch 100 as a composite device of the first mass storage device and the standard keyboard and the mouse, and requests the KVM switch 100 to upload the data.

Next, in step 208, the KVM switch 100 uploads an application to the first host 108 and the second host 110. Thereafter, as shown in step 210, the first host 108 receives the application from the KVM switch 100 and installs and executes the application. Then, as shown in step 212, after the first host 108 executes the application, the application searches for software installation information in the operating system of the first host 108, and the first host 108 transmits the software installation information of the first host 108 to KVM switch 100. The software installation information records the software installed and executed by the first host 108, and the storage directory of the executable files of the software. The software installation information is, for example, a file named "inf" in the Window operating system. Similarly, after the second host 110 executes the application, the application searches for the software installation information in the operating system of the second host 110, and the second host 110 also The software installation information of the second host 110 is transmitted to the KVM switch 100.

After step 212, the KVM switch 100 proceeds to step 214, and the first host 108 proceeds to step 213. In step 214, the KVM switch 100 collects software installation information of the first host 108 and the second host 110. In step 213, the first host 108 asks the KVM switch 100 whether there is software installation information to update. After steps 213 and 214, the process proceeds to step 216. In step 216, the KVM switch 100 responds to the inquiry of each host, and the KVM switch 100 uploads data to each host and requests an action of re-enumeration.

In step 216, the KVM switch 100 transmits the software installation information of the second host 110 to the first host 108. Then, proceeding to step 218, after the first host 108 receives the software installation information of the second host 110, the first host 108 updates the software installation information of the first host 108 to integrate the software installation information of the second host 110 into the update. After the software installation information of the first host 108. Similarly, the KVM switch 100 also transmits the software installation information of the first host 108 to the second host 110.

Thereafter, in step 220, the KVM switch 100 re-enumerates the first host 108 as a first mass storage device, a standard keyboard and a mouse, and a composite device corresponding to the second mass storage device of the second host 110. Then, in step 222, the first host 108 re-sets the KVM switch 100 as a first mass storage device, a standard keyboard and a mouse, and a composite device corresponding to the second mass storage device of the second host 110. At this time, in the first host 108, a virtual mass storage device (ie, a second mass storage device) corresponding to the second host 110 is generated, and the first host 108 at this time The access to the second host 110 can be achieved by accessing the virtual mass storage device to establish a data transmission pipeline between the plurality of hosts. For example, the first host 108 accesses the data of the second host 110 through the first device controller 120, the microprocessor 116, and the second device controller 122.

Thereafter, as shown in step 224, the first host 108 detects whether the connection state between the KVM switch 100 and the first host 108 is in a disconnected state. If no, go back to step 224; if yes, go to step 226. In step 226, the first host 108 restores the software installation information of the updated first host 108 to the software installation information of the original first host 108 before the connection with the KVM switch 100. That is, the first host 108 removes the software installation information of the second host 110 that has been integrated with the software installation information of the updated first host 108, so that the software installation information of the first host 108 that is updated again is only recorded. Software installation information for a host 108. This step is preferably also performed by the application.

The above process steps are described by taking the first host 108 as an example, and the same steps can also be applied to the second host 110. For example, after the first host 108 and the second host 110 execute an application, and the KVM switch 100 collects the software installation information of the first host 108, the KVM switch 100 re-enumerates the second host 110 into the first mass storage device. And a composite device corresponding to a third mass storage device of one of the first hosts 108. The KVM switch 100 uploads the collected software installation information of the first host 108 to the second host 110, so that the second host 110 updates its software installation information to integrate the software installation information of the first host 108 to the second host. 110 software In the installation information, the second host 110 performs an access operation on the first host 108.

In addition, although the above process steps describe the actions of the first host 108 and the second host 110 when connected to the KVM switch 100, the method can also be applied to the case where the two hosts are connected to the KVM switch 100.

For example, when the first to fourth hosts 108, 110, 112, and 114 are all connected to the KVM switch 100, in the step 216, the KVM switch 100 collects all connected to the KVM switch 100. After the software installation information of the host, that is, the software installation information of the first to fourth hosts 108, 110, 112, and 114 is collected, the KVM switch 100 waits for each host to query the KVM switch for software installation information to be updated. After the host asks, the KVM switch 100 uploads the software installation information after the aggregation to each host.

In step 218, the KVM switch 100 transmits the software installation information of the second to fourth hosts 110, 112, and 114 to the first host 108. The first host 108 will update the software installation information of the first host 108 to integrate the software installation information of the second to fourth hosts 110, 112 and 114 into the software installation information of the updated first host 108.

Thus, in step 220, the KVM switch 100 will be re-listed to the first host 108 as a first mass storage device, a standard keyboard and a mouse, and corresponding to the second to fourth hosts 110, 112, and 114. A composite device with a large number of storage devices. At this time, in the first host 108, a plurality of virtual mass storages corresponding to the second to fourth hosts 110, 112, and 114 are generated. The first host 108 can access the second to fourth hosts 110, 112, and 114 by accessing the virtual mass storage devices to establish a data transmission pipeline between the plurality of hosts.

The second host 110 receives the software installation information of the first host 108, the third host 112, and the fourth host 114 from the KVM switch, and generates corresponding information to the first host 108 and the third host 112. And a plurality of virtual mass storage devices of the fourth host 114 to achieve access to the first, third, and fourth hosts 108, 112, and 114 to establish a data transmission pipeline between the plurality of hosts. The operation modes of the third and fourth hosts 112 and 114 are similar to those of the second host 110, and details are not described herein.

The invention further proposes a method for multi-host file sharing through a KVM switch. The method includes the following steps: providing a KVM switch 100, the KVM switch 100 is coupled to the first host 108 and the second host 110; and through the KVM switch 100, the first host 108 is added to the second host 110. The virtual host device 108 accesses the second host 110 through the KVM switch 100.

When the multi-host file sharing is performed, when the user controls one of the plurality of hosts through the KVM switch 100, the storage medium of the other host, such as a hard disk, can still be accessed. The user can read the data in the storage medium of other hosts by reading the virtual mass storage device; the user can also write the data to the storage of other hosts by writing the data into the virtual mass storage device. In the media. Alternatively, the user can allocate storage space for storage media of multiple hosts. For example, users can dump large files that cannot be stored on a controlled host to other owners. In the storage medium of the machine. In this way, resources between multiple hosts can be allocated and applied more efficiently.

As such, the KVM switch 100 of the present invention is also particularly suitable for use in a multi-host system in which a plurality of hosts having different characteristics are installed. That is to say, in a plurality of hosts, the first host can be planned to be a host using a high-order microprocessor, and the second host is a host having a large storage space for the storage medium. In this way, the first host can be configured without a large-capacity storage medium, and the second host can be configured without a high-end microprocessor, and the user can operate on the first host and read the second at an appropriate time. The data of the storage medium of the host. In this way, resources of multiple hardware and software between hosts can be better shared and deployed, and the cost saving effect can be achieved.

In addition, the first host 108 can execute the software program stored in the second host 110 through the KVM switch 100 according to the software installation information of the first host 108 after the change. The application can also display the program path of the installed software of other hosts recorded in the updated software installation information for the user to select and execute. In this way, when the user controls one of the plurality of hosts through the KVM switch 100, the applications installed by the other hosts can still be executed.

For example, the user can use the application installed on the controlled host to open the file of the other host, or use the application installed on other host to open the file of the controlled host. In this way, the same application software can be installed on one of the multiple hosts, so that all hosts can be shared. For example, users can install anti-virus software in it. One host, other hosts can execute this anti-virus software, and can protect other hosts that do not have anti-virus software installed.

Second embodiment

Please refer to FIG. 3, which is a block diagram of a KVM switch according to a second embodiment of the present invention. Different from the KVM switch 100 of the first embodiment, the KVM switch 300 of the present embodiment is connected to a plurality of hosts through a plurality of transmitters (Dongle). These transmitters are for example USB transmitters. This embodiment is described by taking the first to fourth transmitters 330, 332, 334, and 336 as an example. Each of the transmitters has a device controller for performing functions similar to the first to fourth device controllers 120, 122, 124, and 126 of the KVM switch 100 of the first embodiment. The KVM switch 300 further uses a control switch 340 to select which device controller to output the relevant signals of the keyboard 302 or the mouse 304 to. This architecture can make the connection distance between the KVM switch 300 and each host longer, and is suitable for long-distance connections.

Third embodiment

Please refer to FIG. 4, which is a block diagram of a KVM switch according to a third embodiment of the present invention. Different from the KVM switch 100 of the first embodiment, the KVM switch 400 of the present embodiment is connected to a plurality of hosts through a plurality of transmitters for the user to pass through the keyboard 402 and the mouse 404. Video device 406 operates these hosts. These transmitters are for example USB transmitters. Each transmitter has a device controller, a processing Unit and a storage unit. For example, the first transmitter 430 has a first device controller 451, a processing unit 453, and a storage unit 452. The device controller is used to connect with a corresponding host. The processing unit is electrically connected to the device controller for controlling signal transmission between the KVM switch 400 and the connected host. The storage unit is electrically connected to the processing unit and stores an application.

When the host is connected to the KVM switch 400 through the transmitter, and the KVM switch 400 is connected to the host, the processing unit uploads the application to the connected host, and generates a virtual mass storage device on the host to establish multiple devices. The data transmission pipeline between the hosts.

Further, the processing unit is further configured to enumerate the connected hosts, so that the connected host generates at least one virtual mass storage device corresponding to at least one other host connected to the KVM switch.

In addition, after the host executes the application, the processing unit collects the software installation information of the connected host, and the application updates the software installation information of the corresponding host to install the software of at least one other host connected to the KVM switch. The information is integrated into the updated software installation information.

A flowchart is described in detail below. Please refer to FIG. 5, which illustrates an example of a flowchart of a method for multi-master data transmission by using a multi-switch and a plurality of transmitters in FIG. The first to fourth transmitters 430, 432, 434, and 436 are connected to the first to fourth hosts 408, 410, 412, and 414, respectively, by a USB interface as an example. The KVM switch 400 further uses a control switch 440 to select which transmitter to output the relevant signals of the keyboard 402 or the mouse 404 to.

The method includes the following steps. First, in step 502, the first host 408 queries the device type of the first transmitter 430 connected to the first host 408. Next, in step 504, the first transmitter 430 is listed to the first host 408 as a composite device of the first mass storage device and a standard keyboard and a mouse. Then, in step 506, the first host 408 sets the first transmitter 430 as a composite device of the first mass storage device and the standard keyboard and the mouse, and requests the first transmitter 430 to upload the data.

Next, in step 508, the first transmitter 430 uploads the application stored in the storage unit to the first host 408. Thereafter, as shown in step 510, the first host 408 receives the application from the first transmitter 430 and installs and executes the application. Then, as shown in step 512, after the application is executed by the first host 408, the application searches for software installation information in the operating system of the first host 408, and the first host 408 transmits the software installation information of the first host 408 to the application. The first transmitter 430. Similarly, after the second host 410 executes the application, the application searches for the software installation information in the operating system of the second host 410, and the second host 410 also transmits the software installation information of the second host 410 to the second transmitter 432. .

After step 512, the first transmitter 430 proceeds to step 514, and the first host 408 proceeds to step 513. In step 514, the first transmitter 430 collects software installation information of the first host 408. Similarly, the second transmitter 432 can also collect software installation information of the second host 410. Next, in step 515, the KVM switch 400 collects software installation information of the first host 408 and the second host 410 from the first transmitter 430 and the second transmitter 432, respectively. Preferably, the KVM switch 400 collects all Software installation information for connected hosts. In step 513, the first host 408 asks the KVM switch 400 whether there is software installation information to update. After steps 513 and 515, the process proceeds to step 516. In step 516, the first transmitter 430 responds to the inquiry of whether the plurality of computer switches of the first host 408 need to be updated, and the first transmitter 430 uploads the software installation information after the completion, and requests re-enumeration.

Then, in step 516, the first transmitter 430 transmits the software installation information of the second host 410 received from the KVM switch 400 to the first host 408. Next, in step 518, after the first host 408 receives the software installation information of the second host 410, the first host 408 updates the software installation information of the first host 408 to integrate the software installation information of the second host 410. The updated software installation information of the first host 408. Similarly, the second transmitter 432 also transmits the software installation information of the first host 408 received from the KVM switch 400 to the second host 410.

Thereafter, in step 520, the first transmitter 430 re-enumerates the first host 408 into a first mass storage device, a standard keyboard and a mouse, and a composite device corresponding to the second mass storage device of the second host 410. Then, in step 522, the first host 408 re-sets the first transmitter 430 as a composite device of the first mass storage device, the standard keyboard and the mouse, and the second mass storage device corresponding to the second host 410. At this time, in the first host 408, a virtual mass storage device (ie, a second mass storage device) corresponding to the second host 410 is generated, and the first host 408 can access the virtual mass storage at this time. Device, to achieve the second host 410 Access actions to establish a data transfer pipeline between multiple hosts. For example, the first host 408 accesses the data of the second host 410 through the first transmitter 430, the control switch 440, the microprocessor 416, and the second transmitter 432.

Then, as shown in step 524, the first host 408 detects whether the connection state between the first transmitter 430 and the first host 408 is a disconnected state. If no, go back to step 524; if yes, go to step 526. In step 526, the first host 408 restores the software installation information of the updated first host 408 to the software installation information of the original first host 408 before the first transmitter 430 is connected.

The KVM switch disclosed in the above embodiments of the present invention and the setting method thereof, the data transmission method and the file sharing method of the multi-host can have a software and hardware sharing function between the plurality of hosts connected thereto. In this way, the storage capacity and computing power between the hosts can be more effectively allocated to achieve cost saving and improve the efficiency of use of these hosts.

In view of the above, the present invention has been disclosed in a preferred embodiment, and is not intended to limit the present invention. A person 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.

100, 300, 400‧‧‧Multicomputer switchers

102, 302, 402‧‧‧ keyboard

104, 304, 404‧‧‧ mouse

106, 406‧‧‧ video devices

108, 408‧‧‧ first host

110, 410‧‧‧ second host

112, 412‧‧‧ third host

114, 414‧‧‧ fourth host

116, 416‧‧‧Microprocessor

118‧‧‧ memory unit

120, 451‧‧‧ first device controller

122‧‧‧Second device controller

124‧‧‧ third device controller

126‧‧‧4th device controller

128‧‧‧Host Controller

130‧‧‧Video Switcher

202~226, 502~526‧‧‧ Process steps

340, 440‧‧‧Control switch

330, 332, 334, 336, 430, 432, 434, 436 ‧ ‧ transmitters

452‧‧‧ storage unit

453‧‧‧Processing unit

FIG. 1 is a block diagram of a KVM switch according to an embodiment of the invention.

Figure 2 shows the multi-host computer through the multi-computer switcher in Figure 1. An example of a flow chart of a method of data transmission.

3 is a block diagram of a KVM switch in accordance with a second embodiment of the present invention.

4 is a block diagram of a KVM switch in accordance with a third embodiment of the present invention.

FIG. 5 is a flow chart showing an example of a method for multi-master data transmission by using a multi-computer switcher of FIG. 4 and a plurality of transmitters.

100‧‧‧Multicomputer switcher

102‧‧‧ keyboard

104‧‧‧ Mouse

106‧‧‧Video devices

108‧‧‧First host

110‧‧‧Second host

112‧‧‧ third host

114‧‧‧fourth host

116‧‧‧Microprocessor

118‧‧‧ memory unit

120‧‧‧First device controller

122‧‧‧Second device controller

124‧‧‧ third device controller

126‧‧‧4th device controller

128‧‧‧Host Controller

130‧‧‧Video Switcher

Claims (36)

A KVM switch and a multi-master setting method, the KVM switch storing an application, the method comprising: after the KVM switch is connected to a first host and a second host, The KVM switch lists the first host and the second host as a first mass storage device; uploads the application to the first host and the second host; and the first host and the first host After the host executes the application, the KVM switch collects at least the software installation information of the second host; and the KVM switch re-enumerates the first host to the first mass storage device, and corresponds to the first a composite device of the second mass storage device of the second host, the KVM switch uploading the collected software installation information of the second host to the first host. The method of claim 1, further comprising: after the first host and the second host execute the application, the KVM switch further collects software installation information of the first host; The computer switcher re-lists the second host to the first mass storage device and the composite device corresponding to one of the first host and the third mass storage device, and the KVM switch uploads the collected first host Software installation information to the second host. The method of claim 2, wherein in the step of re-enumerating the KVM switch to the second host, the KVM switch re-enumerates the second host into the first mass storage device The standard keyboard and mouse, and the third mass storage corresponding to the first host A composite device for the device. The method of claim 1, wherein in the enumerating step, the KVM switch enumerates the first mass storage device with a standard keyboard and a mouse to the first host and the second host Composite device. The method of claim 1, wherein in the re-listing step, the KVM switch re-lists the first host to the first mass storage device, the standard keyboard and the mouse, and Corresponding to the composite device of the second mass storage device of the second host. The method of claim 1, wherein the first and second mass storage devices are Universal Serial Bus (USB) mass storage devices. A method for transmitting a multi-host data through a KVM switch includes: a first host inquiring about a device type of a KVM switch connected to the first host, the KVM switch being further coupled to at least a second host The KVM switch stores an application; the first host sets the KVM switch as a first mass storage device; the first host receives the application from the KVM switch and executes the application And the first host re-sets the KVM switch as a composite device of the first mass storage device and at least one second mass storage device corresponding to the second host, and the first host switches from the multi-computer Receiver Software installation information of the second host. The method of claim 7, wherein in the setting step, the first host sets the KVM switch as a composite device of the first mass storage device and a standard keyboard and a mouse. The method of claim 7, wherein in the resetting step, the first host re-sets the KVM switch as the first mass storage device, the standard keyboard and the mouse, and Corresponding to the composite device of the at least one second mass storage device of the second host. The method of claim 7, wherein the first and second mass storage devices are USB mass storage devices. The method of claim 7, further comprising: after the first host executes the application, the first host transmits the software installation information of the first host to the KVM switch, so that The KVM switch transmits the software installation information of the first host to the second host. The method of claim 7, further comprising: after the first host receives the software installation information of the second host, the first host updates the software installation information of the first host, to The software installation information of the second host is integrated into the updated software installation information of the first host. The method of claim 12, further comprising: when the first host detects that the KVM switch is disconnected from the first host, the first host will update the The software installation information of the first host is restored to the original before the connection with the KVM switch. Software installation information for the first host. A KVM switch for controlling a plurality of hosts by a keyboard, a mouse, and a video device, the KVM switch comprising: a microprocessor for controlling the keyboard, the mouse, and the video device a signal transmission path; a memory unit electrically connected to the microprocessor and configured to store an application; a first device controller for electrically connecting to a first host and controlled by the micro processing And a second device controller for electrically connecting to a second host and controlled by the microprocessor; wherein the KVM switch enumerates the first host and the second host a plurality of storage devices, and after the first host and the second host receive and execute the application, the KVM switch collects at least software installation information of the second host, and the KVM switch is directed to the first The host re-enumerates the first mass storage device and the composite device corresponding to the second mass storage device of the second host, and the KVM switch uploads the collected software installation information of the second host to The first host. The KVM switch of claim 14, wherein the KVM switch lists the first mass storage device and a standard keyboard and mouse composite device to the first host and the second host . The KVM switch of claim 14, wherein the KVM switch re-lists the first host to the first mass storage device, the standard keyboard and the mouse, and corresponds to the second Host a composite device of the second mass storage device. The KVM switch of claim 14, wherein the first and second mass storage devices are USB mass storage devices. The KVM switch of claim 14, wherein after the first host and the second host execute the application, the KVM switch collects software installation information of the first host, and the The KVM switch re-lists the second host to the first mass storage device and the composite device corresponding to one of the first host and the third mass storage device, and the KVM switch uploads the first collected The software installation information of the host is to the second host. The KVM switch of claim 18, wherein the KVM switch is further configured to re-list the second host to the first mass storage device, the standard keyboard and the mouse, and corresponding to a composite device of the third mass storage device of the first host. The KVM switch of claim 14, wherein after re-listing, the first host accesses the first device controller, the microprocessor, and the second device controller Information on the second host. The KVM switch of claim 14, further comprising: a video switcher coupled to the video device, the first host and the second host, and controlled by the microprocessor . For example, the KVM switch described in claim 14 The method further includes: a host controller for coupling to the keyboard and the mouse, and controlled by the microprocessor. A multi-computer switch for controlling a plurality of hosts through a keyboard, a mouse, and a video device, the KVM switch including: a microprocessor for controlling the keyboard, the mouse, the video device, and a signal transmission path between the plurality of hosts; and a memory unit electrically connected to the microprocessor and storing an application for uploading the application to the plurality of hosts when the plurality of hosts are connected to the KVM switch Each host generates a virtual mass storage device on each host to establish a data transmission pipeline between the plurality of hosts. The KVM switch of claim 23, wherein the microprocessor is further configured to enumerate each host to cause each host to generate at least one virtual mass storage device corresponding to at least one other host. The KVM switch according to claim 24, wherein after the host executes the application, the microprocessor collects software installation information of each host, and the application updates the corresponding software installation of the host. Information to integrate software installation information of at least one other host into the updated software installation information. The KVM switch of claim 24, wherein the KVM switch is connected to a plurality of hosts through a plurality of transmitters (Dongle). For example, the KVM switch described in claim 26, The method further includes: a control switch for selecting which device controller to output the relevant signal of the keyboard or the mouse. A method for multi-host file sharing by using a KVM switch includes: providing a KVM switch, the KVM switch being coupled to a first host and a second host; and the KVM switch, The first host adds a virtual mass storage device corresponding to one of the second hosts; the first host accesses the second host through the KVM switch; and updates the software installation information of the first host to the second host The software installation information of the host is integrated in the updated software installation information of the first host; and according to the software installation information of the first host, the first host performs the second storage through the KVM switch. The software program in the host. The method of claim 28, wherein in the step of adding, the KVM switch enumerates the first host, so that the first host generates the corresponding host to the second host. Virtual mass storage device. The method of claim 28, wherein the updating step comprises: the KVM switch uploading an application software to the first host and the second host; The first host and the second host respectively execute the application; and the KVM switch collects software installation information of the second host, and the application changes the software installation information of the first host to the second The software installation information of the host is integrated into the updated software installation information of the first host. A transmitter is coupled to a KVM switch and a host. The KVM switch is connected to a plurality of hosts through a plurality of transmitters for the user to manipulate the keyboard, the mouse, and the video device. a host device, the transmitter includes: a device controller for connecting to the host; a processing unit electrically connected to the device controller for controlling the switch between the KVM switch and the connected host And a storage unit electrically connected to the processing unit and storing an application; wherein, when the host is connected to the KVM switch through the transmitter, the processing unit uploads the application to the The host is connected, and a virtual mass storage device is generated at the host to establish a data transmission pipeline between the plurality of hosts. The transmitter of claim 31, wherein the processing unit is further configured to enumerate the connected host, so that the connected host generates at least one other corresponding to the KVM switch. At least one virtual mass storage device of the host. The transmitter of claim 31, wherein after the host executes the application, the processing unit collects the connected The software installation information of the host, and the application updates the software installation information of the host to integrate the software installation information of the at least one other host connected to the KVM switch into the updated software installation information. The transmitter of claim 33, wherein the KVM switch collects software installation information of all connected hosts. A KVM switch and a multi-host setting method include: connecting the KVM switch to a first host and a second host; and the KVM switch collects at least the software installation of the second host Information; and the KVM switch transmits the software installation information of the second host collected to the first host. The method of claim 35, wherein the KVM switch collects at least the software installation information of the first host and transmits the software to the second host.