TWM541039U - Media switch device and KVM switch device - Google Patents

Abstract

Provided herein are a media switch device and a KVM switch device. The media/KVM switch device include at least one first transmission port, a plurality of second transmission ports, a control port, a media/KVM switching unit and a control unit. When a plurality of media/KVM switches are connected in series with each other by the first transmission ports and/or the second transmission ports, and the control ports of these media/KVM switches are connected in parallel. These media/KVM switches are linked controlled through the control ports so that the signal received by one of the second transmission port of one of the media/KVM switch can be transmitted to one of the first transmission port of one of the media/KVM switch through these media/KVM switches in sequence. Accordingly, the present invention can solve the problem that single switch can be connected to the limited number of electronic devices.

Description

Video switcher and computer switcher

The present invention relates to an audio-visual switcher and a computer switcher, and more particularly to an audio-visual switcher and a computer switcher that are adapted to switch one of a plurality of second electronic devices to be connected to a first electronic device.

With the diversification of the use of computers or audio-visual products, more and more users often use switches to meet more needs in terms of demand and operation. Therefore, a variety of products that can connect multiple computer devices, audio and video players, peripheral devices, and display devices have appeared on the market.

However, the number of computers or audio-visual devices that can be connected to a conventional switch is fixed, so that a user can only connect a certain number of computers or audio-visual devices when using a conventional switch, so that a conventional switch can be applied. And the way is limited.

For example, when a user uses a pair of four video switchers, four computer devices and/or video players can be connected to one display device, and a computer device connected to the display device can be selected by operating the video switcher or Video player. However, when more computer devices and/or video players are to be connected, the user can only re-purchase the video switcher that can connect more devices.

For another example, when a user uses a pair of four computer switches, four computer devices can be connected to a set of keyboards, mice, and displays, and one of the keyboards, mice, and displays is selected by operating a computer switcher. Computer device. However, when connecting more computer devices, the user can only re-purchase the switch that can connect more devices. Converter.

However, even if a switch that can connect more devices is re-purchased, the number of devices that a switch can connect to is still limited, thereby causing limitations in use. Therefore, the conventional switcher still has a lot of room for improvement in connecting a plurality of devices.

The present invention provides a video switcher for switching one of the plurality of second electronic devices to be connected to the at least one first electronic device, including: at least one first transmission port, the first transmission port is an image signal output port; The second transmission port is an image signal input port, wherein the first transmission port is connected to the second transmission port of the first electronic device or another video tone switch, and the first transmission port is used for outputting the image signal. To the first electronic device or another video switcher, the second transmission port is configured to connect to the first transmission port of the second electronic device or another video switcher, and the second transmission port is configured to receive the image signal output by the second electronic device or Receiving an image signal output by another video switcher; a control port, the control port is an EIA-485-compliant port, and the control port is connected in parallel with the control port of the other video switcher; a video switching unit is coupled to the first a transmission port and the second transmission port, the video switching unit selects one of the second transmission ports according to a switching signal to connect with one of the first transmission ports The image signal received by one of the second transmission ports is transmitted to one of the first transmission ports; a control unit is coupled to the video switching unit and the control unit, and the control unit directly generates the switching signal or Controlling the switching operation of the video switching unit according to the control signal received by the control unit; wherein, when the plurality of video switchers are respectively connected in series with the first transmission port and/or the second transmission ports, the audio-visual switchers When the control switches are connected in parallel with each other, the video switchers are linked to each other through the control ports, and the control unit of one of the video switchers generates a control signal and transmits control signals to the other video switchers through the control port, so that The image signals received by one of the second transmission ports of one of the video switchers are sequentially transmitted to the video switchers through the video switchers. One of the first transmissions is one of them.

The present invention provides a computer switcher for switching one of a plurality of second electronic devices to be connected to at least one first electronic device, comprising: at least one first transmission port, wherein the first transmission port has an image signal output and a universal serial bus (USB); a plurality of second transmission ports, wherein the second transmission port has an image signal input port and a universal serial bus bar (USB), and the first transmission port is configured to connect the first electronic device or another a second transmission port of the switchboard for outputting an image signal to the first electronic device or another computer switch through the image signal output, or through the universal serial bus (USB) and the first electronic device or Another computer switcher transmits data, the second transmission port is connected to the first transmission port of the second electronic device or another computer switcher, and the second transmission port is configured to receive the image signal output by the second electronic device through the image signal input port. Or receiving an image signal output by another computer switcher, or transmitting data through a universal serial bus (USB) and a second electronic device or another computer switcher; The control port is an EIA-485-compliant port, and the control port is connected in parallel with the control of other computer switches. A signal switching unit is coupled to the first port and the second port, and the signal is switched. The unit selects one of the second transmission ports to be connected to one of the first transmission ports according to a switching signal, so that the image signal of one of the second transmission ports is input and the received image signal is transmitted. An image signal output to one of the first transmission ports, or a signal received by a universal serial bus (USB) of one of the second transmission ports, and one of the first transmission ports a universal serial bus (USB) for data transmission; a control unit coupled to the signal switching unit and the control unit, the control unit directly generating a switching signal or a switching signal received according to the control unit to control the switching operation of the signal switching unit; Wherein, when a plurality of computer switches are connected in series with each of the first transmission ports and/or the second transmission ports, the control of the computer switches is When they are connected in parallel with each other, the computer switches are linked to each other through the control ports. The control unit of one of the computer switches generates a control signal and transmits control signals to the other computer switches through the control. The image signals received by one of the second transmission ports of one of the computer switches are sequentially transmitted through the computer switches to one of the first switches of the computer switches. The image signal output port of the transmission port is transmitted, or the signal received by the universal serial bus (USB) of one of the second switch ports of the computer switch is sequentially transmitted to the computer through these computer switches. One of the first transmission ports of the first serial port (USB), or one of the first switch ports of one of the computer switches received by the universal serial bus (USB) The signals are sequentially transmitted through these computer switches to a universal serial bus (USB) of one of the second transmission ports of one of the computer switches.

The specific means of the video switcher and the computer switcher of the present invention is that by setting an EIA-485-compliant control port on each switcher, multiple switchers can be connected to each other in series and controlled to achieve multiple connections. The purpose of the second electronic device and the at least one first electronic device. For example, a plurality of computer devices and/or players can be connected to one display device, or for example, a set of keyboard devices, a mouse, and/or a display can be connected to a plurality of computer devices. Thereby solving the problem that the number of electronic devices that a single switch can be connected is limited.

The above summary and the following examples are intended to further illustrate the technical means and the efficiencies of the present invention, and the embodiments and drawings are merely provided for reference and are not intended to limit the present invention.

10‧‧‧Video Switching System

11‧‧‧Video Switcher

111‧‧‧Second transmission埠

112‧‧‧Video Switching Unit

113‧‧‧Second transmission埠

114‧‧‧Control unit

115‧‧‧First transmission埠

117‧‧‧Control

119‧‧‧Control interface

13‧‧‧Video Switcher

131‧‧‧Second transmission

133‧‧‧Second transmission

135‧‧‧First transmission埠

137‧‧‧Control

15‧‧‧Video Switcher

151‧‧‧Second transmission

153‧‧‧Second transmission

155‧‧‧First transmission埠

157‧‧‧Control

21‧‧‧Second electronic device

22‧‧‧Second electronic device

23‧‧‧Second electronic device

24‧‧‧Second electronic device

25‧‧‧Second electronic device

27‧‧‧Second electronic device

29‧‧‧Second electronic device

30‧‧‧Video Switching System

31‧‧‧First electronic device

32‧‧‧First electronic device

33‧‧‧Control device

40‧‧‧Computer Switching System

41‧‧‧Computer Switcher

411‧‧‧Second transmission

4111‧‧‧Image signal input埠

4113‧‧‧General Sequence Bus

412‧‧‧Signal switching unit

413‧‧‧Second transmission

4131‧‧‧Image signal input埠

4133‧‧‧Common sequence bus

414‧‧‧Control unit

415‧‧‧First transmission埠

4151‧‧‧Image signal output埠

4153‧‧‧Common sequence bus

417‧‧‧Control

419‧‧‧Control interface

43‧‧‧Computer Switcher

431‧‧‧Second transmission

4311‧‧‧Image signal input埠

4313‧‧‧Common sequence bus

433‧‧‧ a second transmission

4331‧‧‧Image signal input埠

4333‧‧‧Common sequence bus

435‧‧‧First transmission埠

4351‧‧‧Image signal output埠

4353‧‧‧Common sequence bus

437‧‧‧Control

45‧‧‧Computer Switcher

451‧‧‧Second transmission

4511‧‧‧Image signal input埠

4513‧‧‧Universal Sequence Bus

453‧‧‧Second transmission

4531‧‧‧Image signal input埠

4533‧‧‧Common sequence bus

455‧‧‧First transmission

4551‧‧‧Image signal output埠

4553‧‧‧Universal Sequence Bus

457‧‧‧Control

51‧‧‧Second electronic device

52‧‧‧Second electronic device

53‧‧‧Second electronic device

54‧‧‧Second electronic device

55‧‧‧Second electronic device

57‧‧‧Second electronic device

61‧‧‧First electronic device

62‧‧‧First electronic device

63‧‧‧Control device

FIG. 1 is a functional block diagram of an embodiment of the present video switcher.

2 is a schematic diagram of an embodiment of the present video switcher.

3 is a schematic diagram of another embodiment of the present video switcher.

4 is a functional block diagram of an embodiment of the computer switcher of the present invention.

FIG. 5 is a schematic diagram of an embodiment of the computer switcher of the present invention.

Various illustrative embodiments are described more fully hereinafter with reference to the accompanying drawings. However, the inventive concept may be embodied in many different forms and should not be construed as being limited to the illustrative embodiments set forth herein. Rather, these exemplary embodiments are provided so that this description will be thorough and complete, and the scope of the inventive concept will be fully conveyed to those skilled in the art. In the figures, like numerals are used to indicate like elements.

It will be understood that, although the terms first, second, third, etc. may be used herein to describe various elements or signals, etc., such elements or signals are not limited by such terms. These terms are used to distinguish one element from another, or a signal and another. In addition, as used herein, the term "or" may include all combinations of any one or more of the associated listed items.

Please refer to FIG. 1. FIG. 1 is a functional block diagram of an embodiment of the present video and audio switch. As shown in the figure, the video switcher 11 includes a second transmission port 111, a second transmission port 113, a first transmission port 115, a control port 117, a control unit 114, a video switching unit 112, and a control interface. 119. The video switching unit 112 is coupled to the first transmission port 115 and the second transmission ports 111 and 113. The control unit 114 is coupled to the video switching unit 112, the control unit 117, and the control interface 119. The first transmission port 115 is an image signal output port, and the second transmission port 111 and the second transmission port 113 are image signal input ports.

The control unit 117 of the switch 11 is an EIA-485-compliant port and can be connected in parallel with the control ports of other video switchers. In this embodiment, the second transmission port 111, the second transmission port 113, and the first transmission port 115 of the switch 11 are a high-quality multimedia interface (HDMI), a digital video interface (DisplayPort), and a video graphics array. (VGA), a digital video interface (DVI) or a mobile high quality link interface (MHL), but not limited to this.

In this embodiment, the user can operate the control interface 119 to cause the control unit 114 to directly generate a switching signal (not shown). Video switching unit 112 And selecting one of the second transmission port 111 and the second transmission port 113 to be connected to the first transmission port 115 according to the switching signal, so that the image received by one of the second transmission port 111 and the second transmission port 113 is received. The signal is transmitted to the first transmission port 115 for the purpose of switching the video signal.

In this embodiment, a first electronic device 32 is connected to the first transmission port 115, a second electronic device 22 is connected to the second transmission port 111, and a second electronic device 24 is connected to the second transmission device 113 as an example. In this embodiment, the second electronic devices 22 and 24 can be, for example, a video player, and the first electronic device 32 can be, for example, a display device, but is not limited thereto.

For example, when the image signal generated by the second electronic device 22 is transmitted to the first electronic device 32 for display, the user can operate the control interface 119 to cause the control unit 114 to directly generate a switching signal, so that the video switching unit 112 can switch according to the switch. The signal selection second transmission port 111 is connected to the first transmission port 115. Therefore, the second electronic device 22 is connected to the first electronic device 32 through the control of the switching signal, so that the image signal of the second electronic device 22 (video player) is transmitted to the first electronic device 32 (display device) for display. purpose.

For example, when the image signal generated by the second electronic device 24 is transmitted to the first electronic device 32 for display, the user can operate the control interface 119 to cause the control unit 114 to directly generate a switching signal, so that the video switching unit 112 can The switching signal selection second transmission port 113 is connected to the first transmission port 115. Therefore, the second electronic device 24 is connected to the first electronic device 32 through the control of the switching signal, so that the image signal of the second electronic device 24 (video player) is transmitted to the first electronic device 32 (display device) for display. purpose.

Please refer to FIG. 2 and refer to FIG. 1 at the same time. FIG. 2 is a schematic diagram of an embodiment of the present video and audio switch. As shown, the video switching system 10 includes video and audio switchers 11, 13 and 15, second electronic devices 21, 23, 25 and 27, a first electronic device 31 and a control device 33. The video switcher 11 has a second transmission port 111, a second transmission port 113, a first transmission port 115, and a control port 117. Video switching The device 13 has a second transmission port 131, a second transmission port 133, a first transmission port 135 and a control port 137. The video switcher 15 has a second transmission port 151, a second transmission port 153, a first transmission port 155, and a control port 157.

The video switchers 13 and 15 have similar structures and functions to those of the video switcher 11 shown in FIG. 1, and the detailed structure thereof is not described herein. The control ports 117, 137 and 157 of the video switchers 11, 13 and 15 are an EIA-485 compliant port. In this embodiment, the second transmission ports 111, 113, 131, 133, 151, and 153, and the first transmission ports 115, 135, and 155 are a high-quality multimedia interface (HDMI), a digital video interface (DisplayPort), A video graphics array (VGA), a digital video interface (DVI), or a motion picture quality interface (MHL), but not limited thereto.

In the present embodiment, the second electronic devices 21, 23, 25, and 27 are exemplified by a video player, and the first electronic device 31 is exemplified by a display device.

The second transmission port 111 of the video switcher 11 is connected to the first transmission port 135 of the video switcher 13. The second transmission port 113 of the video switcher 11 is connected to the first transmission port 155 of the video switcher 15, and the video switchover is performed. The first transfer port 115 of the device 11 is connected to the first electronic device 31. The second transfer port 131 of the video switcher 13 is connected to the second electronic device 21, and the second transfer port 133 of the video switcher 13 is connected to the second electronic device 23. The second transmission port 151 of the video switcher 15 is connected to the second electronic device 25, and the second transmission port 153 of the video switcher 15 is connected to the second electronic device 27. The control unit 33 is connected in parallel with the control ports 117, 137 and 157 of the video switchers 11, 13 and 15, respectively.

The video switcher 11 , 13 and 15 can select one of the second transmission ports to connect with the first transmission port according to a switching signal. The switching signal can be generated by the control unit of any of the video switchers 11, 13 and 15 or by the control device 33, and via the control switch 117 of the video switchers 11, 13 and 15. 137, 157 are transmitted to each video switcher. Thereby, the second electronic device 21, 23, 25 can be achieved by setting the switching signal One of the 27 is connected to the purpose of the first electronic device 31.

For example, when the image signal of the second electronic device 23 is to be transmitted to the first electronic device 31 for display, the user can operate, for example, the control interface (not shown) of the video switcher 15 to make the video switch 15 The control unit generates a switching signal and transmits it to the control port 117 of the video switcher 11 and the control port 137 of the video switcher 13 via the control port 157. The video switching unit (not shown) of the video switcher 13 is connected to the first transmission port 135 according to the switching signal, and the video switching unit of the video switcher 11 is not shown. The second transmission port 111 is connected to the first transmission port 115 according to the switching signal. Therefore, the second electronic device 23 is connected to the first electronic device 31 through the control of the switching signal, and the image signal of the second electronic device 23 (video player) is transmitted to the first electronic device 31 (display device) for display. .

For example, when the image signal of the second electronic device 25 is to be transmitted to the first electronic device 31 for display, the user can operate the control interface 119 of the video switcher 11 to cause the control unit 114 of the video switcher 11 to generate a switch. The signal is transmitted to the control port 137 of the video switcher 13 and the control port 157 of the video switcher 15 through the control port 117. The video switcher 15 is caused to select its second transmission port 151 to be connected to the first transmission port 155 according to the switching signal, and to cause the video switcher 11 to select its second transmission port 113 to be connected to the first transmission port 115 according to the switching signal. Therefore, the second electronic device 25 is connected to the first electronic device 31 through the control of the switching signal, and the image signal of the second electronic device 25 (video player) is transmitted to the first electronic device 31 (display device) for display. .

For example, when the image signal of the second electronic device 21 is to be transmitted to the first electronic device 31 for display, the user can operate the control device 33 to generate a switching signal, and transmit the control signal to the control switch 117 of the video switcher 11, and switch the video and audio. The control unit 137 of the unit 13 and the control unit 157 of the video switcher 15. The video switching unit of the video switcher 13 is connected to the first transmission port 135 according to the switching signal, and the video switching unit 112 of the video switcher 11 selects the second transmission according to the switching signal. The port 111 is connected to the first port 115. Therefore, the second electronic device 21 is connected to the first electronic device 31 by the control of the switching signal, and the image signal of the second electronic device 23 (video player) is transmitted to the first electronic device 31 (display device) for display. .

Therefore, the video switcher of the present invention sets an EIA-485-compliant control port for each video switcher, so that the switchers 11, 13 and 15 are connected to each other in series and controlled to achieve connection of a plurality of second electronic devices. The devices 21, 23, 25 and 27 are switched with a first electronic device 31 for the purpose. Thereby solving the problem that the number of electronic devices that a single switch can be connected is limited.

In an embodiment of the present invention, the control units of the video switchers 11, 13 and 15 have an encoder (not shown), each encoder having an encoding. The encoder can be implemented, for example, by a memory encoder or a switch encoder. The present invention is not limited thereto. The control unit 33 or the control unit of one of the video switchers 11, 13 and 15 generates a switching signal according to the code of each video switcher when the switching signal is generated, so that the video signals of one of the second electronic devices are sequentially transmitted. These video switchers are transmitted to the first electronic device.

In an embodiment of the present invention, the encoder of the control unit of the video switchers 11, 13, and 15 is a switch encoder, and the user can operate the switch encoder to encode each of the video switchers. For example, the code given to the video switcher 11 is 1, the code of the video switcher 13 is 2, and the code of the video switcher 15 is 3. For example, when the image signal of the second electronic device 23 is to be transmitted to the first electronic device 31, the control unit 33 or the control unit of one of the video switchers 11, 13 and 15 generates a "switch with code 2 to select its The second transmission port 133 is connected to the first transmission port 135, and the switcher coded 1 selects the switching signal of the second transmission port 111 connected to the first transmission port 115. For example, when the image signal of the second electronic device 25 is to be transmitted to the first electronic device 31, the control unit 33 or the control unit of one of the video switchers 11, 13 and 15 generates a "switch with a code of 3 to select its The second transmission port 151 is connected to the first transmission port 155, and the switch coded to 1 selects its second transmission port 113 and the A switching signal that transmits a connection 115".

In an embodiment of the present invention, the encoder of the control unit of the video switchers 11, 13 and 15 is a memory encoder, and the user can operate the control device 33 or the second electronic device 21, 23, 25, 27 thereof. One of the control interfaces of one of the video switchers 11, 13, 15 is encoded with a memory encoder for each of the video switchers. The memory encoder can be implemented, for example, by a firmware, but the creation is not limited thereto.

The operation of the control unit of the video switcher is a common technique in the control computing system, and details of the operation thereof are not described herein.

In an embodiment of the present invention, the control unit of the video switcher 11, 13, 15 can be implemented by a firmware, and the audio-visual switching system 10 can update the firmware of the control unit of the video switch 11, 13, 15 through the control signal. .

In an embodiment of the present invention, the connection structure between the video switchers 11, 13 and 15 is a Daisy Chain Topology structure, but is not limited thereto.

In an embodiment of the present invention, the second electronic devices 21, 23, 25, and 27 are a computer device, but are not limited thereto.

Please refer to Figure 3 and see Figure 1 at the same time. 3 is a schematic diagram of another embodiment of the present video switcher. As shown, the video switching system 30 includes switches 11 and 13, second electronic devices 21, 23, and 29, a first electronic device 31, and a control device 33. The video switcher 11 has a second transmission port 111, a second transmission port 113, a first transmission port 115, and a control port 117. The video switcher 13 has a second transmission port 131, a second transmission port 133, a first transmission port 135, and a control port 137. Among them, the video switcher 13 has a similar structure and function to the video switcher 11 shown in FIG.

The difference from the embodiment shown in FIG. 2 is that the video switching system 30 of the present embodiment does not have the video switcher 15, and the second port 113 of the video switcher 11 is connected to the second electronic device 29.

For example, when the image signal of the second electronic device 29 is to be transmitted to the first electronic device 31 for display, the user can operate the video switcher 13 to enable the control unit of the video switcher 13 to generate a switching signal and control the control signal. The port 137 is transmitted to the control port 117 of the video switcher 11. The video switching unit 112 of the video switcher 11 is caused to select its second transmission port 113 to be connected to the first transmission port 115 according to the switching signal. Therefore, the second electronic device 29 is connected to the first electronic device 31 through the control of the switching signal, and the image signal of the second electronic device 29 (video player) is transmitted to the first electronic device 31 (display device) for display. .

Therefore, the video switcher of the present invention sets an EIA-485-compliant control port for each video switcher, and realizes that the video switchers 11 and 13 are connected to each other in series to control the connection, and the connection of the plurality of second electronic devices is achieved. 21, 23 and 29 and a first electronic device 31 for the purpose of switching. Thereby solving the problem that the number of electronic devices that a single switch can be connected is limited.

The connection relationship between the video switchers shown in FIG. 2 and FIG. 3 is merely an example, and the present invention is not limited thereto. In practical applications, the plurality of video switchers may have their first transmission port and/or the second transmission port arbitrarily connected in series with each other, and the control switches of the video switchers are connected in parallel with each other to achieve the purpose of linkage control.

Please refer to FIG. 4. FIG. 4 is a functional block diagram of an embodiment of the computer switch. As shown in the figure, the computer switch 41 includes a second transmission port 411, a second transmission port 413, a first transmission port 415, a control port 417, a control unit 414, a signal switching unit 412, and a control interface. 419. The first transmission port 415 has an image signal output port 4151 and a universal sequence bus bar 4153. The second transmission port 411 has an image signal input port 4111 and a universal sequence bus bar 4113. The second transmission port 413 has an image signal input.埠 4131 and a universal sequence bus 4133. The signal switching unit 412 is coupled to the first transmission port 415 and the second transmission ports 411 and 413. The control unit 414 is coupled to the signal switching unit 412, the control unit 417, and the control interface 419.

Wherein, the control unit 417 of the switch 41 is an EIA-485 compliant connection. 埠, and can be connected in parallel with the control 其他 of other computer switches. In this embodiment, the image signal input 埠 4111 of the second transmission port 411, the image signal input 埠 4131 of the second transmission port 413, and the image signal output 埠 4151 of the first transmission port 415 are a high-quality multimedia interface (HDMI). ), a digital video interface (DisplayPort), a video graphics array (VGA), a digital video interface (DVI) or a motion picture quality interface (MHL), but not limited.

In this embodiment, the user can operate the control interface 419 to cause the control unit 414 to directly generate a switching signal (not shown). The signal switching unit 412 selects one of the second transmission port 411 and the second transmission port 413 to be connected to the first transmission port 415 according to the switching signal, so that the image signal of the second transmission port 411 is input to the 4111, the second transmission. The image signal received by one of the image signal input ports 413 of 埠413 is transmitted to the image signal output port 4151 of the first transmission port 415, or the universal sequence bus bar 4113 and the second transmission port 413 of the second transmission port 411 are used. The received data signal of one of the universal sequence bus 4133 is transmitted to the universal sequence bus 4153 of the first transmission port 415, or the data signal received by the universal sequence bus 4153 of the first transmission port 415 is transmitted. One of the universal sequence bus 4113 of the second transmission port 411 and the general sequence bus 4133 of the second transmission port 413 achieves the purpose of switching signals.

In the embodiment, a first electronic device 62 is connected to the first transmission port 415, a second electronic device 52 is connected to the second transmission port 411, and a second electronic device 54 is connected to the second transmission device 413. In this embodiment, the second electronic devices 52 and 54 can be, for example, a computer device. The first electronic device 62 can be, for example, a set of a mouse, a keyboard, and a display device, but is not limited thereto. The second transmission port 411 is connected to the second electronic device 52 (computer device) by the image signal input port 4111 and the universal sequence bus bar 4113, and the second transmission port 413 is connected by the image signal input port 4131 and the universal sequence bus bar 4133. The second electronic device 54 (computer device), the first transmission port 415 is connected to the mouse and the keyboard in the first electronic device 62 by the image signal output port 4151, and the first transmission port 415 is connected to the first serial port bus line 4153. Electricity Display device in sub-device 62.

For example, when the image signal or the data signal generated by the second electronic device 52 is transmitted to the first electronic device 62, the user can operate the control interface 419 to cause the control unit 414 to directly generate a switching signal, so that the signal switching unit 412 can The switching signal selection second transmission port 411 is connected to the first transmission port 415. The second electronic device 52 is thus connected to the first electronic device 62 by the control of the switching signal. The image signal or data signal of the second electronic device 52 (computer device) is transmitted to the first electronic device 62 (mouse, keyboard and display device), and the data signal of the first electronic device 62 can be transmitted through the universal serial bus 4153 is transmitted to the second electronic device 52 (computer device) for the purpose.

For example, when the image signal or the data signal generated by the second electronic device 54 is transmitted to the first electronic device 62, the user can operate the control interface 419 to cause the control unit 414 to directly generate a switching signal, so that the signal switching unit 412 can The switching signal selection second transmission port 413 is connected to the first transmission port 415. Thus, the second electronic device 54 is connected to the first electronic device 62 by the control of the switching signal. The image signal or data signal of the second electronic device 54 (computer device) is transmitted to the first electronic device 62 (mouse, keyboard and display device), and the data signal of the first electronic device 62 can be transmitted through the universal serial bus 4153 is transmitted to the second electronic device 54 (computer device) for the purpose.

Please refer to FIG. 5 and refer to FIG. 4 at the same time. FIG. 5 is a schematic diagram of an embodiment of the computer switch. As shown, the computer switching system 40 includes computer switches 41, 43, and 45, second electronic devices 51, 53, 55, and 57, a first electronic device 61, and a control device 63. The computer switch 41 has a second transmission port 411, a second transmission port 413, a first transmission port 415, and a control port 417. The first transmission port 415 has an image signal output port 4151 and a universal sequence bus bar 4153. The second transmission port 411 has an image signal input port 4111 and a universal sequence bus bar 4113. The second transmission port 413 has an image signal input.埠 4131 and a universal sequence bus 4133. The computer switch 43 has a second transmission 431 and a second transmission. 埠433, a first transmission port 435, and a control port 437. The first transmission port 435 has an image signal output port 4351 and a universal sequence bus bar 4353. The second transmission port 431 has an image signal input port 4311 and a universal sequence bus bar 4313. The second transmission port 433 has an image signal input.埠 4331 and a universal sequence bus 4333. The computer switcher 45 has a second transmission port 451, a second transmission port 453, a first transmission port 455, and a control port 457. The first transmission port 455 has an image signal output port 4551 and a universal sequence bus bar 4553. The second transmission port 451 has an image signal input port 4511 and a universal sequence bus bar 4513. The second transmission port 453 has an image signal input.埠 4531 and a universal sequence bus 4533.

The computer switches 43 and 45 have similar structures and functions to those of the computer switch 41 shown in FIG. 4, and the detailed structure thereof is not described herein. The switches 417, 437, and 457 of the computer switches 41, 43, and 45 are an EIA-485 compliant port. In this embodiment, the image signal output ports 4151, 4351, 4551 and the image signal input ports 4111, 4131, 4311, 4331, 4511, and 4531 are, for example, a high-quality multimedia interface (HDMI) and a digital video interface (DisplayPort). , a video graphics array (VGA), a digital video interface (DVI) or a motion picture quality interface (MHL), but not limited.

In the present embodiment, the second electronic devices 51, 53, 55, and 57 are exemplified by a computer device. The first electronic device 61 is exemplified by a group of a mouse, a keyboard, and a display device.

The second transmission port 411 of the computer switcher 41 is connected to the first transmission port 435 of the computer switcher 43, and the second transmission port 413 is connected to the first transmission port 455 of the computer switcher 45. The first transmission port 415 is connected to the first transmission port 415. The first electronic device 61. The second transmission port 431 of the computer switcher 43 is connected to the second electronic device 51, and the second transmission port 433 is connected to the second electronic device 53. The second transfer port 451 of the computer switch 45 is connected to the second electronic device 55, and the second transfer port 453 is connected to the second electronic device 57. The control unit 63 is connected in parallel with the control ports 417, 437 and 457 of the PC switches 41, 43 and 45, respectively.

The computer switcher 41, 43 and 45 can select one of the second transmission ports to connect with the first transmission port according to a switching signal. The switching signal can be generated by the control unit of any of the computer switches 41, 43 and 45, or by the control device 63, and controlled by the computer switches 41, 43 and 45, 417, 437, 457 are transmitted to each computer switcher. Thereby, by the setting of the switching signal, the purpose of connecting one of the second electronic devices 51, 53, 55, and 57 to the first electronic device 61 can be achieved.

For example, when the image signal or the data signal of the second electronic device 55 is to be transmitted to the first electronic device 61, the user can operate, for example, the control interface of the computer switcher 43 (not shown) to make the computer switch 43 The control unit (not shown) generates a switching signal and transmits it to the control port 417 of the computer switch 41 and the control port 457 of the computer switch 45 via the control port 437. The computer switch 45 is caused to select its second transmission port 451 to be connected to the first transmission port 455 according to the switching signal, and causes the computer switcher 41 to select its second transmission port 413 to be connected to the first transmission port 415 according to the switching signal. Thus, the second electronic device 55 is connected to the first electronic device 61 by the control of the switching signal. The image signal or data signal of the second electronic device 55 (computer device) is transmitted to the first electronic device 61 (mouse, keyboard and display device), and the data signal of the first electronic device 61 can be transmitted through the universal serial bus The purpose of transmission to the second electronic device 55 (computer device).

Or, for example, when the image signal or the data signal of the second electronic device 51 is to be transmitted to the first electronic device 61, the user can operate the control device 63 to generate a switching signal and transmit the control signal to the control switch 417 of the computer switch 41. The control unit 437 of the computer switcher 43 and the control unit 457 of the computer switcher 45. The signal switching unit of the computer switcher 43 is configured to connect the second transmission port 431 to the first transmission port 435 according to the switching signal, and the signal switching unit 412 of the computer switcher 41 selects the second transmission port 411 and the second according to the switching signal. A transmission port 415 is connected. Thus, the second electronic device 51 is connected to the first electronic device 61 by the control of the switching signal. Achieving transmission of the image signal or data signal of the second electronic device 51 (computer device) to the first electronic device 61 (mouse, keyboard and display device), and can transmit the data signal of the first electronic device 61 to the second electronic device 51 (computer device) through the universal serial bus.

Therefore, the computer switcher of the present invention sets a control device conforming to the ELA-485 specification for each computer switcher, and allows the switches 41, 43 and 45 to be connected to each other in series and controlled to achieve the connection of a plurality of second electronic devices. The devices 51, 53, 55, and 57 are combined with a first electronic device 61 for the purpose of switching. Thereby solving the problem that the number of electronic devices that a single switch can be connected is limited.

In an embodiment of the present invention, the control units of the KVM switches 41, 43 and 45 have an encoder (not shown), each encoder having an encoding. The encoder can be implemented, for example, by a memory encoder or a switch encoder. The present invention is not limited thereto. The control unit 63 or the control unit of one of the computer switches 41, 43 and 45 generates a switching signal according to the code of each of the computer switches to generate an image signal or a data signal of one of the second electronic devices. The data is transmitted to the first electronic device through the computer switches in sequence, or the data signals of the first electronic device are sequentially transmitted to the second electronic device through the computer switches.

In an embodiment of the present invention, the encoder of the control unit of the computer switches 41, 43 and 45 is a switch encoder, and the user can operate the switch encoder to encode each computer switch. For example, the code given to the computer switch 41 is 1, the code of the computer switch 43 is 2, and the code of the computer switch 45 is 3. When, for example, the data of the second electronic device 53 is to be transmitted to the first electronic device 61, the control unit 63 or the control unit of one of the computer switches 41, 43 and 45 generates a "switch of code 2 to select the first The second transmission port 433 is connected to the first transmission port 435, and the switcher coded to 1 selects the switching signal of the second transmission port 411 connected to the first transmission port 415. For example, when the data of the second electronic device 55 is to be transmitted to the first electronic device 61, the control unit 63 or the control unit of one of the computer switches 41, 43 and 45 generates a "switch with a code of 3 to select the first Two transmission ports 451 and the first transmission port The 455 is connected, and the switch coded 1 selects the switching signal of the second transmission port 413 and the first transmission port 415.

In an embodiment of the present invention, the encoder of the control unit of the computer switches 41, 43 and 45 is a memory encoder, and the user can operate the control device 63 or the second electronic device 51, 53, 55, 57 thereof. One of the control interfaces of one of the computer switches 41, 43, 45 to encode a memory encoder for each of the computer switches. The memory encoder can be implemented, for example, by a firmware, but the creation is not limited thereto.

The operation of the control unit is a commonly used technique in the control computing system by those skilled in the art, and details of the operation thereof are not described herein.

In an embodiment of the present invention, the control units of the computer switches 41, 43 and 45 can be implemented by a firmware, and the computer switching system 40 can update the firmware of the control units of the computer switches 41, 43 and 45 through the control signals.

In an embodiment of the present invention, the connection structure between the computer switches 41, 43 and 45 is a Daisy Chain Topology structure, but not limited thereto.

The connection relationship of the computer switch shown in FIG. 5 is merely an example, and the present invention is not limited thereto. In practical applications, the plurality of computer switches may have their first transmission port and/or the second transmission port arbitrarily connected in series with each other, and the control switches of the computer switches are connected in parallel with each other to achieve the purpose of linkage control.

Therefore, through the technology disclosed in the above disclosure, the audio-visual switcher and the computer switcher proposed by the present invention achieve the connection of the plurality of switchers by setting an EIA-485-compliant control switch in each switch. The purpose of the linkage control. Since the video switcher and the computer switcher of the present invention do not limit the number of switches connected in series, the video switcher and the computer switcher of the present invention can realize the connection of any second electronic device to the first electronic device. purpose. Thereby solving the problem that the number of electronic devices that a single switch can be connected is limited.

The above description is only a preferred and feasible embodiment of the present creation. Equal changes and modifications made by the scope of the interest should be covered by this creation.

10‧‧‧Video Switching System

11‧‧‧Video Switcher

111‧‧‧Second transmission埠

113‧‧‧Second transmission埠

115‧‧‧First transmission埠

117‧‧‧Control

13‧‧‧Video Switcher

131‧‧‧Second transmission

133‧‧‧Second transmission

135‧‧‧First transmission埠

137‧‧‧Control

15‧‧‧Video Switcher

151‧‧‧Second transmission

153‧‧‧Second transmission

155‧‧‧First transmission埠

157‧‧‧Control

21‧‧‧Second electronic device

23‧‧‧Second electronic device

25‧‧‧Second electronic device

27‧‧‧Second electronic device

31‧‧‧First electronic device

33‧‧‧Control device

Claims (10)

An audio-visual switcher, configured to switch one of the plurality of second electronic devices to be connected to the at least one first electronic device, comprising: at least one first transmission port, the first transmission port is an image signal output port; The second transmission port is an image signal input port, wherein the first transmission port is connected to the second transmission port of the first electronic device or another video switcher, and the first transmission port is used for outputting The image signal is sent to the first electronic device or another video switcher, the second transmission port is connected to the first transmission port of the second electronic device or another video switcher, and the second transmission port is configured to receive the second transmission port. The image signal output by the electronic device or the image signal output by the other video switcher; a control port, the control port is an EIA-485-compliant port, and the control port is connected in parallel with the control port of the other video switcher; An audio/video switching unit is coupled to the first transmission port and the second transmission ports, and the video switching unit selects one of the second transmission ports and the first transmission according to a switching signal One of the ports is connected to transmit the image signal received by one of the second transmission ports to one of the first transmission ports; and a control unit coupled to the video switching unit and the Controlling, the control unit directly generates the switching signal or the switching signal received according to the control device to control the switching operation of the video switching unit; wherein, when the plurality of video switching devices respectively use the first transmission ports And/or the second transmission ports are connected in series with each other. When the control switches of the video switchers are connected in parallel with each other, the video switchers are mutually linked through the control ports, and one of the video switchers The control unit generates the control signal, and transmits the control signal to the other video switchers through the control device, so that the image received by one of the plurality of video switchers is received by the second transmission port The signals are transmitted to the video switchers in sequence. One of the first transmission ports of one of the video switchers. The video switcher of claim 1, wherein the control device is further connected to a control device, and the control device outputs the control signal to the control unit of the video switcher to enable one of the second transmission ports. The received image signal is transmitted to one of the first transmission ports. The video switcher of claim 1, wherein the control unit of the video switcher has a memory encoder, the memory encoder having an encoding, the encoding being recognized by another video switcher, wherein, when The video switchers are respectively connected in series with the first transmission ports and/or the second transmission ports, and the control switches of the video switchers are parallel to each other, one of the video switchers The control unit generates the control signal according to the codes of the memory encoders, and transmits the control signals to the other video switchers through the control, so that one of the video switchers The image signals received by the second transmission port are sequentially transmitted to the one of the plurality of video switchers through the video switchers. The video switcher of claim 1, wherein the control unit of the video switcher has a switch encoder, the switch encoder having an code for identification by another video switcher, wherein when the plurality of The video switcher is connected in series with the first transmission ports and/or the second transmission ports, and the control switches of the video switchers are connected in parallel with each other, and the one of the video switchers The control unit generates the control signal according to the codes of the switch encoders, and transmits the control signals to the other video switchers through the control, so that one of the video switchers is one of the The image signals received by the second transmission port are sequentially transmitted to the one of the plurality of video switchers through the video switchers. The video switcher of claim 1, wherein the control unit is a firmware, and the video switcher updates the firmware through the control signal. A computer switcher for switching one of a plurality of second electronic devices Connecting to the at least one first electronic device, comprising: at least one first transmission port, wherein the first transmission port has an image signal output port and a universal sequence bus bar (USB); and a plurality of second transmission ports, wherein the first The second transmission port has an image signal input port and a universal serial bus (USB), and the first transmission port is connected to the second transmission port of the first electronic device or another computer switch, and the first transmission port is used for Outputting an image signal to the first electronic device or another computer switch through the image signal, or transmitting data to the first electronic device or another computer switch through the universal serial bus (USB), the second The first transmission port is connected to the second electronic device or another computer switch, and the second transmission port is configured to receive the image signal output by the second electronic device or receive another computer switch through the image signal input port. The image signal output by the device, or the data is transmitted through the universal serial bus (USB) and the second electronic device or another computer switch; a control device, the control device is an EIA-485 compliant device The control port is connected in parallel with the control port of the other computer switcher; a signal switching unit is coupled to the first transmission port and the second transmission ports, and the signal switching unit selects the first transmission port according to a switching signal One of the second transmission ports is connected to one of the first transmission ports, so that the image signal received by the image signal input of one of the second transmission ports is transmitted to the first Outputting the image signal of one of the transmission ports, or the universal sequence bus (USB) of one of the second transmission ports and the universal sequence of one of the first transmission ports a bus (USB) for data transmission; and a control unit coupled to the signal switching unit and the control unit, the control unit directly generating the switching signal or the switching signal received according to the control unit to control the signal switching Switching operation of the unit; wherein, when the plurality of computer switches respectively use the first transmission ports and/or the The two transmission ports are connected in series with each other. When the control switches of the computer switches are connected in parallel with each other, the computer switches are interlocked with each other through the control ports, and the control unit of one of the computer switches generates the control unit Controlling the signal, and transmitting the control signal to the other computer switches through the control, so that the image signal of one of the second transmission ports of one of the computer switches is input to the received image And transmitting, by the computer switcher, the image signal output port of one of the first transfer ports of the one of the computer switchers, or one of the computer switchers The data signal received by the universal serial bus (USB) of the second transmission port is sequentially transmitted through the computer switches to the universal sequence of one of the first transmission ports of the computer switches. a bus (USB), or a data signal received by the universal serial bus (USB) of one of the first switches of the computer switch, sequentially cut through the computers Wherein a transmission port of the second one of these is transmitted to the KVM switch to the universal serial bus (USB). The computer switch according to claim 6, wherein the control device is further connected to a control device, and the control device outputs the control signal to the control unit of the computer switch. The computer switcher of claim 6, wherein the control unit of the computer switch has a memory encoder, the memory encoder having a code for identification by another computer switcher, wherein, when The computer switches are respectively connected in series with the first transmission ports and/or the second transmission ports, and the control switches of the computer switches are connected to each other in parallel, one of the computer switches The control unit generates the control signal according to the codes of the memory encoders. The computer switcher of claim 6, wherein the control unit of the computer switch has a switch encoder, the switch encoder having a code, the code is for another Identifying by a computer switcher, wherein when the plurality of computer switches respectively connect the first transmission ports and/or the second transmission ports to each other, the control switches of the computer switches are connected in parallel with each other The control unit of one of the switchboards generates the control signal according to the codes of the switch encoders. The computer switcher of claim 6, wherein the control unit is a firmware, and the computer switcher updates the firmware through the control signal.