TWM542900U - Media switch device - Google Patents

Abstract

Provided herein is a media switch device. The media switch device includes at least one first transmission port, a plurality of second transmission ports, a media switching unit and a control unit. The control unit controls the operation of the media switch device according to a switching signal, where the switching signal is generated by the control unit or received from the data transmission channel of the first transmission port and/or the second transmission port. When a plurality of media switches are connected in series with each other by the first transmission ports and/or the second transmission ports, the signal received by one of the second transmission port of one of the media switch can be transmitted to one of the first transmission port of one of the media switch through these media 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

The present invention relates to an audio-visual switch, and more particularly to an audio-visual switcher suitable for switching 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 the user uses a pair of four video switchers, four computer devices can be connected to a set of keyboards, mice, and displays, and one of the keyboard, mouse, and display is selected by operating the video switcher. Computer device. However, when connecting more computer devices, the user can only re-purchase the switch that can connect more devices.

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 an audio-visual switcher for switching one of a plurality of second electronic devices to be connected to at least one first electronic device, including: at least one first transmission port, the first transmission port has an image signal output port, and the image The signal output port has a data transmission channel; the plurality of second transmission ports, the second transmission port has an image signal input port, the image signal input port and has a data transmission channel, wherein the first transmission port is connected to the first electronic device Or the second transmission port of the other video switcher, the image signal output of the first transmission port is used to output the image signal to the first electronic device or another video switcher, and the second transmission port is used to connect the second electronic device or another a first transmission port of the video switcher, the image signal input port is configured to receive the image signal output by the second electronic device or receive the image signal output by the other video switcher; and a video switching unit is coupled to the first transmission port and The second transmission port, the video switching unit selects one of the second transmission ports according to a control signal and the first transmission One of the connections is configured 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 and audio switching unit, the control unit directly generates control a signal or a control signal received according to the data transmission channel to control the switching operation of the video switching unit; wherein, when the plurality of video switchers respectively connect the first transmission port and/or the second transmission ports to each other, the audio and video a control unit of one of the switchers generates a control signal, and transmits a control signal to the other video switchers through the first transmission port and/or the data transmission channels of the second transmission ports, so that the video switchers are The image signals received by one of the second transmission ports are sequentially transmitted to one of the first transmission ports of the video switchers through the video switchers.

In an embodiment of the present invention, the image signal output of the first transmission port and the second The transmitted video signal input port is a display data channel (DDC) and conforms to the high-definition multimedia interface (HDMI), video graphics array (VGA) or digital video interface (DVI) specifications. The transmission channel is the display data channel.

In an embodiment of the present invention, the image signal output port of the first transmission port and the image signal input port of the second transmission port are transmission channels having an AUX auxiliary channel and conforming to the DisplayPort specification, wherein The data transmission channel is the AUX auxiliary channel.

In an embodiment of the present invention, the image signal output 埠 of the first transmission port and the image signal input port of the second transmission port are transmissions with CBUS (Communication BUS) and conform to the Motion Picture Quality Interfacing Interface (MHL) specification. The data transmission channel is CBUS.

The specific means of the audio switcher of the present invention is through a high-definition multimedia interface (HDMI), a video graphics array (VGA) or a digital video interface (DVI) specification display data channel (DDC), digital video interface ( One of the AUX auxiliary channel (Auxiliary Channel) of the DisplayPort) specification and the CBUS (Communication BUS) of the Motion Picture Quality Linkage Interface (MHL) specification transmits a control signal to achieve connection of a plurality of second electronic devices with at least one The purpose of an 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‧‧‧Video Switching System

41‧‧‧Video Switcher

411‧‧‧Second transmission

4111‧‧‧Image signal input埠

4113‧‧‧General Sequence Bus

412‧‧‧Video 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‧‧‧Video 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‧‧‧Video 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 still another embodiment of the present video switcher.

FIG. 5 is a schematic diagram of still another embodiment of the present video switcher.

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 first transmission port 115 has a data transmission channel (not shown). The second transmission port 111 and the second transmission port 113 are video signal input ports, and the second transmission ports 111, 113 respectively have a data transmission channel (not shown).

In this embodiment, the second transmission port 111 and the second transmission port 113 of the switch 11 And the first transmission port 115 is a high-definition multimedia interface (HDMI), a digital video interface (DisplayPort), a video graphics array (VGA), a digital video interface (DVI) or a mobile high-quality interface (MHL). ), but not as a limitation.

In this embodiment, the user can operate the control interface 119 to cause the control unit 114 to directly generate a control signal (not shown). The video switching unit 112 selects 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 control signal, so that one of the second transmission port 111 and the second transmission port 113 The received image signal is transmitted to the first transmission port 115 for the purpose of switching the image 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 control signal, so that the video and audio switching unit 112 can control according to the control. 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 control 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 control signal, so that the video switching unit 112 can The control 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 control 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. 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. 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. 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 video switcher 11 , 13 and 15 can select one of the second transmission ports to connect with the first transmission port according to a control signal. The control signal can be generated by the control unit of any of the video switchers 11, 13 and 15 and transmitted through the first transmission port and/or the second transmission port of the video switchers 11, 13 and 15. The transmission channel is transmitted to each video switcher. Thereby, the purpose of connecting one of the second electronic devices 21, 23, 25 and 27 to the first electronic device 31 can be achieved by the setting of the control signal.

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 of the video switcher 15 (not The control unit of the video switcher 15 generates a control signal and transmits the data to the second transmission port 113 of the video switcher 11 through the data transmission channel of the first transmission port 155 of the video switcher 15. The transmission channel, the video switcher 11 transmits the control signal to the data transmission channel of the first transmission port 135 of the video switcher 13 through the data transmission channel of the second transmission port 111. The video switching unit (not shown) of the video switcher 13 is connected to the first transmission port 135 according to the control 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 control signal. Therefore, the second electronic device 23 is connected to the first electronic device 31 through the control of the control 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 enable the control unit 114 of the video switcher 11 to generate a control. The signal is transmitted to the data transmission channel of the first transmission port 135 of the video switcher 13 through the data transmission channel of the second transmission port 111 of the video switcher 11, and the audio and video switcher 11 transmits the data transmission channel through the second transmission port 113. The control signal is transmitted to the data transmission channel of the first transmission port 155 of the video switcher 15. 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 control 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 control signal. Therefore, the second electronic device 25 is connected to the first electronic device 31 through the control of the control 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. .

In an embodiment of the present invention, the first transmission ports 115, 135, 155 and the second transmission ports 111, 113, 131, 133, 151, 153 of the video switchers 11, 13 and 15 have display data channels (Display Data). Channel, DDC) and conforms to the transmission of high-definition multimedia interface (HDMI), video graphics array (VGA) or digital video interface (DVI) specifications, wherein the first transmission port 115, 135, 155 and the second transmission port 111, The data transmission channel of 113, 131, 133, 151, and 153 is the display data channel.

In an embodiment of the present invention, the first transmission ports 115, 135, 155 and the second transmission ports 111, 113, 131, 133, 151, 153 of the video switchers 11, 13 and 15 have an AUX auxiliary channel (Auxiliary Channel). And conforming to the transmission of the digital video interface (DisplayPort) specification, wherein the data transmission channel of the first transmission port 115, 135, 155 and the second transmission port 111, 113, 131, 133, 151, 153 is the AUX auxiliary channel .

In an embodiment of the present invention, the first transmission ports 115, 135, 155 and the second transmission ports 111, 113, 131, 133, 151, 153 of the video switchers 11, 13 and 15 have CBUS (Communication BUS) and In accordance with the transmission of the Motion Picture Quality Interfacing Interface (MHL) specification, the data transmission channel of the first transmission port 115, 135, 155 and the second transmission port 111, 113, 131, 133, 151, 153 is the CBUS.

Therefore, the video switcher of the present invention has a Display Data Channel (DDC) and a digital video interface (DisplayPort) through a high-definition multimedia interface (HDMI), a video graphics array (VGA) or a digital video interface (DVI) specification. One of the AUX auxiliary channel (Auxiliary Channel) and the Motion High Definition Interface (MHL) specification CBUS (Communication BUS) transmits a control signal to connect a plurality of second electronic devices 21, 23, 25 and 27 is the purpose of switching with a first electronic device 31. 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 ports 117, 137, 157 of the video switchers 11, 13 and 15 may be, for example, an RS-232 port or a local area network port, but the present invention is not limited thereto. The control device 33 of the video switching system 10 can select the control ports 117, 137, 157 connected to one of the video switchers 11, 13 and 15, and the control signals can be generated by the control device 33. The control device 33 transmits a control signal to the connected switch through an RS-232 port or a regional network port. Then, the control signal is transmitted to each of the video switchers in the video switching system 10 via the data transmission channel of the first transmission port and/or the second transmission port to achieve the second electronic device. One of 21, 23, 25, and 27 is connected to the purpose of the first electronic device 31.

In the embodiment shown in FIG. 2, the control device 33 is exemplified by a control port 137 that is selectively connected to the video switcher 13. For example, when data of one of the second electronic devices 21, 23, 25, and 27 is to be transmitted to the first electronic device 31, the user can operate the control device 33 to generate a control signal and transmit it to the video switcher 13. After receiving the control signal, the video switcher 13 can transmit the control signal to the video switcher 11 through the data transmission channel of the first transmission port 135. The video switcher 11 can transmit the control signal to the video switcher 15 through the data transmission channel of the second transmission port 113 after receiving the control signal. Therefore, the control signal is transmitted to each of the video and audio switchers 10 through the data transmission channel, and the video switchers 11, 13 and 15 are connected to each other in series to connect the plurality of second electronic devices 21, 23, 25 and 27 With the purpose of a first electronic device 31. Thereby solving the problem that the number of electronic devices that can be connected by a single video switcher 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. When the control unit 33 or the control unit of the video switchers 11, 13 and 15 generates the control signal, the control signal is generated according to the code of each of the video switchers, 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 switch coded to 1 selects the control of the second transmission port 111 connected to the first transmission port 115. Signal. 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 the control signal of the second transmission port 113 and the first transmission port 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. The video switcher 13 has the video switcher 11 shown in FIG. Similar structure and function.

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 control signal and transmit the video and audio. The data transmission channel of the first transmission port 135 of the switcher 13 is transmitted to the data transmission channel of the second transmission port 111 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 control signal. Therefore, the second electronic device 29 is connected to the first electronic device 31 through the control of the control 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 transmits a control signal through the data transmission channel, so that the video switchers 11 and 13 are connected to each other to connect the plurality of second electronic devices 21, 23 and 29 with a first electronic device 31. 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 can have their first transmission port and/or the second transmission port arbitrarily connected to each other, and the video switchers transmit a control signal through the data transmission channel to achieve the purpose of switching.

Please refer to FIG. 4. FIG. 4 is a functional block diagram of still another embodiment of the present video switcher. As shown, the video switcher 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 video switching unit 412, and a control interface. 419. The first transmission port 415 has an image signal output port 4151 and a general sequence bus bar 4153. The image signal output port 4151 has a data transmission channel (not shown). The second transmission port 411 has an image signal input port 4111 and a universal sequence bus bar 4113, wherein the image The signal input port 4111 has a data transmission channel (not shown). The second transmission port 413 has an image signal input port 4131 and a universal sequence bus bar 4133. The image signal input port 4131 has a data transmission channel (not shown). The video switching unit 412 is coupled to the first transmission port 415 and the second transmission port 411 and 413. The control unit 414 is coupled to the video switching unit 412, the control unit 417, and the control interface 419.

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 mobile high-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 control signal (not shown). The video 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 control 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 general 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 controlling the signal.

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. Wherein, the second transmission port 411 is The second electronic device 52 (computer device) is connected to the image signal input port 4111 and the universal sequence bus bar 4113, and the second transfer port 413 is connected to the second electronic device 54 by the image signal input port 4131 and the universal sequence bus bar 4133 (computer device) The first transmission port 415 is connected to the display device in the first electronic device 62 by the image signal output port 4151, and the first transmission port 415 is connected to the mouse and the keyboard in the first electronic device 62 by the universal sequence bus bar 4153.

For example, when the image signal or the data signal generated by the second electronic device 52 is to be 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 control signal, so that the video switching unit 412 can The control 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 control of the control 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 control signal, so that the video switching unit 412 can The control signal selection second transmission port 413 is connected to the first transmission port 415. The second electronic device 54 is thus connected to the first electronic device 62 by control of the control 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 still another embodiment of the present video switcher. As shown, the video switching system 40 includes video and audio switchers 41, 43, and 45, second electronic devices 51, 53, 55, and 57, a first electronic device 61, and a control device 63. The video switcher 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 video switcher 43 has a second transmission port 431, a second transmission port 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 video 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 video switchers 43 and 45 have similar structures and functions to those of the video switcher 41 shown in FIG. 4, and the detailed structure thereof is not described herein. 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 video switcher 41 is connected to the first transmission port 435 of the video switcher 43, and the second transmission port 413 is connected to the first transmission port 455 of the video 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 video 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 video switcher 45 is connected to the second electronic device 55, and the second transfer port 453 is connected to the second electronic device 57.

The video switcher 41, 43 and 45 can select one of the second transmission ports to connect with the first transmission port according to a control signal. The control signal can be generated by the control unit of any of the video switchers 41, 43 and 45, and via the first transmission of the video switchers 41, 43 and 45. And/or the data transmission channel of the second transmission port is transmitted to each video switcher. Thereby, the purpose of connecting one of the second electronic devices 51, 53, 55 and 57 to the first electronic device 61 can be achieved by the setting of the control signal.

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 (not shown) of the video switcher 43 to enable the video switcher 43. The control unit (not shown) generates a control signal and transmits the image signal input channel 埠4111 of the second transmission port 411 of the video switcher 41 through the data transmission channel of the image signal output port 4351 of the first transmission port 435. The data transmission channel, the video switcher 41 transmits the control signal to the data transmission channel of the first transmission port 455 of the video switcher 45 through the data transmission channel of the second transmission port 413 to the data transmission channel of the video switcher 45. The video switcher 45 is selected to connect its second transmission port 451 to the first transmission port 455 according to the control signal, and causes the video switcher 41 to select its second transmission port 413 to be connected to the first transmission port 415 according to the control signal. The second electronic device 55 is thus connected to the first electronic device 61 by the control of the control 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).

In an embodiment of the present invention, the video signal outputs 埠 4151, 4351, 4551 and the video signal inputs 埠 4111, 4131, 4311, 4331, 4511, and 4531 of the video switchers 41, 43 and 45 have display data channels (Display Data). Channel, DDC) and conforms to the transmission of high-definition multimedia interface (HDMI), video graphics array (VGA) or digital video interface (DVI) specifications, in which video signal output 埠4151, 4351, 4551 and video signal input 埠 4111, The data transmission channel of 4131, 4311, 4331, 4511, and 4531 is the display data channel.

In an embodiment of the present invention, the video signal outputs 埠 4151, 4351, 4551 and the video signal inputs 埠 4111, 4131, 4311, 4331, 4511, and 4531 of the video switchers 41, 43 and 45 have AUX auxiliary channels (Auxiliary Channel). ) and The transmission channel of the digital display interface (DisplayPort) specification, wherein the data transmission channels of the image signal output 埠 4151, 4351, 4551 and the image signal input ports 4111, 4131, 4311, 4331, 4511, and 4531 are the AUX auxiliary channels.

In an embodiment of the present invention, the video signal outputs 埠 4151, 4351, 4551 and the video signal inputs 埠 4111, 4131, 4311, 4331, 4511, and 4531 of the video switchers 41, 43 and 45 have CBUS (Communication BUS) and In accordance with the transmission of the Motion Picture Quality Interface (MHL) specification, the data transmission channel of the image signal output 埠 4151, 4351, 4551 and the image signal input ports 4111, 4131, 4311, 4331, 4511, and 4531 is the CBUS.

Therefore, the video switcher of the present invention has a Display Data Channel (DDC) and a digital video interface (DisplayPort) through a high-definition multimedia interface (HDMI), a video graphics array (VGA) or a digital video interface (DVI) specification. One of the CUX (Communication BUS) of the AUX Auxiliary Channel and the Motion Picture Linking Interface (MHL) specification transmits a control signal, which allows the video switchers 41, 43 and 45 to be connected to each other. The purpose of connecting and connecting a plurality of second electronic devices 51, 53, 55, and 57 with a first electronic device 61 is achieved. 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 ports 417, 437, and 457 of the video switchers 41, 43, and 45 may be, for example, an RS-232 port or a regional network port, but the present invention is not limited thereto. The control device 63 of the video switching system 40 can select the control ports 417, 437, 457 connected to one of the video switchers 41, 43, and 45, and the control signals can be generated by the control device 63. The control unit 63 transmits a control signal to the connected switch via an RS-232 port or a regional network port. Then, the control signal is transmitted to each of the video switchers in the video switching system 40 via the data transmission channel of the image signal output port and/or the image signal input port to achieve the second electronic devices 51, 53, 55, and 57. One is connected to the purpose of the first electronic device 61.

In the embodiment shown in FIG. 5, the control unit 63 is exemplified by a control unit 437 selected to be connected to the video switcher 43. 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 control signal and transmit it to the video switcher 43. After receiving the control signal, the video switcher 43 can transmit the control signal to the video switcher 41 through the data transmission channel of the video signal output 埠4351 of the first transmission port 435. After receiving the control signal, the video switcher 41 can transmit the control signal to the video switcher 45 through the data transmission channel of the video signal input 埠4131 of the second transmission port 413. Therefore, the control signal is transmitted to each of the video and audio switching systems 40 through the data transmission channel, so that the video switching unit of the video switcher 43 selects its second transmission port 431 to be connected to the first transmission port 435 according to the control signal, and The video switching unit 412 of the video switcher 41 is caused to select its second transmission port 411 to be connected to the first transmission port 415 according to the control signal. The second electronic device 51 is thus connected to the first electronic device 61 by the control of the control signal. The image signal or data signal of the second electronic device 51 (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 51 (computer device). 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 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 video switchers 41, 43 and 45 generates a control signal according to the code of each video switcher to generate an image signal or a data signal of one of the second electronic devices when generating the control signal. The data signals are transmitted to the first electronic device through the video switchers in sequence, or the data signals of the first electronic device are sequentially transmitted to the second electronic device through the video switchers.

In an embodiment of the present invention, the control units of the video switchers 41, 43 and 45 The encoder is a switching encoder, and the user can operate the switching encoder to encode each video switcher. For example, the code given to the video switcher 41 is 1. The code of the video switcher 43 is 2, and the code of the 2 video switcher 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 video switchers 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 1 selects the control 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 video switchers 41, 43 and 45 generates a "switch with a code of 3 to select the first The second transmission port 451 is connected to the first transmission port 455, and the switcher coded 1 selects the control signal of the second transmission port 413 and the first transmission port connection 415".

In an embodiment of the present invention, the encoder of the control unit of the video switchers 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 video switchers 41, 43, 45 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 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 video switchers 41, 43 and 45 can be implemented by a firmware, and the audio/video switching system 40 can update the firmware of the control units of the video switchers 41, 43 and 45 through the control signals.

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

The connection relationship of the video switcher shown in FIG. 5 is merely an example, and the present invention is not limited thereto. In practical applications, multiple video switchers can The first transmission port and/or the second transmission port are arbitrarily connected in series to each other to achieve the purpose of switching.

Therefore, through the technology contained in the above disclosure, the audio-visual switcher audio and video switcher proposed by the present invention transmits the display material through the high-definition multimedia interface (HDMI), the video graphics array (VGA) or the digital video interface (DVI) specification. One of the Display Data Channel (DDC), the AUX Auxiliary Channel of the DisplayPort specification, and the CBUS (Communication BUS) of the Motion Picture Capabilities Interface (MHL) specification transmits a control signal. In order to achieve the purpose of connecting a plurality of second electronic devices and at least one first electronic device. Since the video switcher of the present invention does not limit the number of switches connected in series, the video switcher of the present invention can achieve the purpose of connecting any second electronic device to the first electronic device. Thereby solving the problem that the number of electronic devices that a single switch can be connected is limited.

The above descriptions are only preferred embodiments of the present invention, and all changes and modifications made in accordance with the scope of the patent application of this creation 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 (9)

An audio and video 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 having an image signal output port, the image signal signal The output port has a data transmission channel; the plurality of second transmission ports have an image signal input port, and the image signal input port has the data transmission channel, wherein the first transmission port is connected to the data transmission channel a second transmission port of the first electronic device or another video switcher, the image signal output of the first transmission port is used to output an image signal to the first electronic device or another video switcher, and the second transmission port a first transmission port for connecting the second electronic device or another video switcher, the image signal input port of the second transmission port is configured to receive the image signal output by the second electronic device or receive another video switcher output The video signal switching unit is coupled to the first transmission port and the second transmission ports, and the video switching unit selects the one according to a control signal. One of the two transmission ports is connected to one of the first transmission ports 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, the control unit directly generating the control signal or the control signal received according to the data transmission channel to control a switching operation of the video switching unit; wherein, when the plurality of audio and video The control unit of one of the video switchers generates the control signal and transmits the first transmission signal by using the first transmission port and/or the second transmission ports in series with each other. And the data transmission channel of the second transmission port transmits the control signal to the other video switchers to enable the image signal received by one of the second transmission ports of the video switchers And transmitting, by the video switchers, one of the first ones of the video switchers Transfer 埠. The video switcher of claim 1, wherein the video switcher further has a control unit, the control unit is connected to a control device, and the control device outputs the control signal to the control unit of the video switcher to enable the The image signal received by one of the second transmission ports is transmitted to one of the first transmission ports. The video switcher of claim 1, wherein the image signal output 埠 of the first transmission port and the image signal input port of the second transmission port have a Display Data Channel (DDC) and are high. A transmission medium of a picture quality multimedia interface (HDMI), a video graphics array (VGA) or a digital video interface (DVI) specification, wherein the data transmission channel is the display data channel. The video switcher of claim 1, wherein the image signal output port of the first transmission port and the image signal input port of the second transmission port have an AUX auxiliary channel and conform to a digital video interface ( The transmission port of the DisplayPort) specification, where the data transmission channel is the AUX auxiliary channel. The video switcher of claim 1, wherein the image signal output 埠 of the first transmission port and the image signal input port of the second transmission port are CBUS (Communication BUS) and conform to the action high quality link interface. (MHL) Specification transmission, where the data transmission channel is the CBUS. 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 When the video switcher is connected to each other in the first transmission port and/or the second transmission ports, the control unit of one of the video switchers is configured according to the codes of the memory encoders. Generating the control signal and transmitting the control signal to the other video switchers through the data transmission channels of the first transmission port and/or the second transmission ports to enable one of the video switchers The image signal received by the second transmission port is sequentially transmitted to the one of the plurality of video switchers through the video switcher. 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 When the video switcher connects the first transmission ports and/or the second transmission ports to each other in series, the control unit of one of the video switchers generates the control according to the codes of the switch encoders. Transmitting the control signal to the other video switchers through the data transmission channels of the first transmission port and/or the second transmission ports to enable 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 is a firmware, and the video switcher updates the firmware through the control signal. The video switcher of claim 1, wherein the first transmission port further has a universal serial bus (USB), and the second transmission port further has a universal serial bus (USB); the first transmission is used. Transmitting data through the universal serial bus (USB) with the first electronic device or another video switcher, the second transmission port is configured to transmit the universal serial bus (USB) to the second electronic device or another The video switcher transmits data according to the control signal, and selects one of the second transmission ports to be connected to one of the first transmission ports, so that the second transmission ports are And the universal serial bus (USB) and the universal serial bus (USB) of one of the first transmission ports perform data transmission; wherein, when the plurality of video switchers respectively use the first transmissions And the control unit of one of the video switchers generates the control signal and transmits the first transmission port and/or the second transmission port The data transmission channel transmits the control The number to another And a video switch, wherein the data signals received by the universal serial bus (USB) of one of the second switch ports of the one of the video switchers are sequentially transmitted to the audio switch One of the plurality of video switchers, the universal serial bus (USB) of the first transmission port, or the common sequence converging one of the first transmission ports of one of the video switchers The data signals received by the row (USB) are sequentially transmitted to the universal serial bus (USB) of one of the second transmission ports of the one of the video switchers through the video switchers.