CN205210873U - extension device - Google Patents

Abstract

The utility model provides an extend device is applicable to with a host computer or an at least peripheral device electric connection, should extend the device and include: the device comprises at least one universal serial bus, a detection unit, a control unit, a host processing unit and a device processing unit. The device detects the design of the computer device or the peripheral device and sets the extension device as the extender of the sending end or the receiving end, thereby improving the use convenience of the extension device.

Description

extension device

technical field

The utility model is to provide an extension device, especially an extension device suitable for electrical connection with a computer host or at least one peripheral device.

Background technique

In recent years, due to the rapid development of multimedia audio-visual technology, various video transmission extension devices and video playback devices with different functions appear on the market. In order to improve the convenience and flexibility of viewing videos for consumers, it is very important to improve the video transmission mechanism between the transmitter and the receiver in the extension device.

Among them, whether it is to switch the same display to display video signals from different audio-visual input sources, or to split the video signals from the same audio-visual input source to different displays, complex connection circuits are required. The complex connection circuits will increase the complexity and cost of wiring, and the complex connection circuits will interfere or affect each other. In this way, the monitor may be affected to output multimedia signals, or the monitor may not be able to control the monitor to output multimedia signals. Therefore, it is inconvenient to use.

Utility model content

The utility model provides an extension device. By detecting the design of a computer device or a peripheral device, the extension device is set as an extender at a sending end or a receiving end, thereby improving the convenience of use of the extension device.

The utility model provides an extension device, which is suitable for electrical connection with a computer host or at least one peripheral device. The extension device includes: at least one universal serial bus, a detection unit, a control unit, a host processing unit and a Device processing unit. At least one USB is used to electrically connect the computer host or at least one peripheral device. The detection unit is electrically connected to at least one universal serial bus for detecting the computer host or at least one peripheral device. The control unit is electrically connected to the detection unit. The host processing unit is electrically connected to the detection unit and the control unit, and the detection unit and the host processing unit form a first path. The device processing unit is electrically connected to the detection unit and the control unit, and the detection unit and the device processing unit form a second path. Wherein, when the detection unit detects that the host computer is electrically connected to at least one universal serial bus, the detection unit outputs a first detection signal to the control unit, and the control unit controls the universal serial bus signal according to the first detection signal It is transmitted through the first path and controls the operation of the host processing unit. Wherein, when the detection unit detects that at least one peripheral device is electrically connected to at least one universal serial bus, the detection unit outputs a second detection signal to the control unit, and the control unit controls the universal serial bus according to the second detection signal. The bus signal is transmitted through the second path and controls the operation of the processing unit of the device.

The beneficial effects of the utility model are:

The specific means of the utility model is to use an extension device to detect computer devices or peripheral devices through the detection unit to set the transmission status (sending end or receiving end) of the extension device itself, and notify the other end through the transmission line The extension device at the other end allows the extension device at the other end to set its own transmission status (sending end or receiving end), thereby improving the convenience of use of the extension device. In this way, the utility model can indeed improve the convenience of use of the extension device.

In order to further understand the technology, method and effect adopted by this creation, please refer to the following detailed description and drawings about this creation. The above description of the content of this creation and the description of the following implementation methods are for further explanation The technical means and effects of the creation, but the described embodiments and drawings are only for reference and description, and are not used to limit the creation.

Description of drawings

FIG. 1 is a schematic functional block diagram of an extension system according to an embodiment of the present invention;

Fig. 2 is a schematic functional block diagram of an extension system according to another embodiment of the present invention;

FIG. 3 is a schematic functional block diagram of an extension system according to another embodiment of the present invention.

Reference signs:

1, 1a, 1b: extension system, 11, 12: extension device, 110, 120: detection unit, 112, 122: control unit, 114, 124: host processing unit, 116, 126: device processing unit, 117, 127 : operation unit, 118, 128: conversion unit, 119, 129: video conversion unit, 14: transmission line, H1: hub device, IO1, IO2: input/output interface, P1, P2: video output/input interface, U1, U2 : Universal Serial Bus, D1: display device, S1: video source device, R11, R21: first path, R12, R22: second path.

detailed description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

FIG. 1 is a functional block diagram of an extension system according to an embodiment of the present invention. See Figure 1. An extension system 1, suitable for electrical connection with a computer host (not shown) and at least one peripheral device (not shown), the extension system 1 includes two extension devices 11, 12, two extension devices 11, 12 Electrically connected through a transmission line 14 .

For the convenience of description, in this embodiment, the host computer is electrically connected to the extension device 11 for illustration. Therefore, the extension device 11 can detect the computer device, and the other extension device 12 is automatically set as an extender capable of electrically connecting peripheral devices. That is to say, the extension device 11 electrically connected to the computer host is the extender at the sending end, and the other extension device 12 is automatically set as the extender at the receiving end.

On the contrary, if the host computer is electrically connected to the extension device 12 first. Therefore, the extension device 12 can detect the computer device, and the other extension device 11 is automatically set as an extender capable of electrically connecting peripheral devices. That is to say, the extension device 12 electrically connected to the computer host is the extender at the sending end, and the other extension device 11 is automatically set as the extender at the receiving end. This embodiment does not limit the form of the extension system 1 .

Similarly, it can be seen that if the peripheral device is electrically connected to the extension device 11 first. Therefore, the extension device 11 can detect peripheral devices, and the other extension device 12 is automatically set as an extender that can be electrically connected to a computer device. That is to say, the extension device 11 electrically connected to the peripheral device is the extender at the sending end, and the other extension device 12 is automatically set as the extender at the receiving end.

On the contrary, if the peripheral device is electrically connected to the extension device 12 first. Therefore, the extension device 12 can detect peripheral devices, and the other extension device 11 is automatically set as an extender that can be electrically connected to a computer device. That is to say, the extension device 12 electrically connected to the peripheral device is the extender at the sending end, and the other extension device 11 is automatically set as the extender at the receiving end. This embodiment does not limit the form of the extension system 1 .

To put it simply, if the computer device is plugged into one of the two extension devices 11 and 12 first, the extension device 11 that is electrically connected to the computer device first is the extender at the sending end. Then the other extension device 12 is an extender at the receiving end. Conversely, if the peripheral device is plugged into one of the two extension devices 11 and 12 first, the extension device 11 that is electrically connected to the peripheral device first is the extender at the receiving end. Another extension device 12 is an extender at the sending end. This increases the speed of extended system settings and signal transmission.

It is worth mentioning that the extension device 12 and the extension device 11 are extenders with the same function. Therefore, this embodiment is described with the extension device 11 . Those skilled in the art should know the technical features of the extension device 12 according to the extension device 11 .

In detail, an extension device 11 is suitable for electrical connection with a host computer or at least one peripheral device. The extension device 11 includes at least one universal serial bus U1, a detection unit 110, a control unit 112, a conversion The unit 118 , a host processing unit 114 , a device processing unit 116 and an I/O interface IO1 .

In practice, the detection unit 110 is electrically connected to at least one universal serial bus U1 , the host processing unit 114 and the device processing unit 116 . The conversion unit 118 is electrically connected to the I/O interface IO1 , the host processing unit 114 and the device processing unit 116 . The control unit 112 is electrically connected to the detection unit 110 , the conversion unit 118 , the host processing unit 114 and the device processing unit 116 . This embodiment does not limit the form of the extension device 11 .

The host computer is realized by, for example, a server computer, a notebook computer, a multimedia playback device or other computer equipment. Peripheral devices are implemented by, for example, keyboards, monitors, mice, joysticks, or other devices. This embodiment does not limit the forms of the computer host and peripheral devices. Another at least one universal serial bus U1 is used to electrically connect the computer host or at least one peripheral device. In practice, the number of Universal Serial Bus U1 (USB) is, for example, one, two or more. In addition, the USB U1 is a port conforming to one or a combination of USB 1.0, 1.2, 2.0, 3.0 and 3.1 Type C specifications. The present embodiment does not limit the quantity and form of the universal serial bus U1.

The detecting unit 110 is electrically connected to at least one universal serial bus U1 for detecting a computer host or at least one peripheral device. In practice, the detection unit 110 can be realized by a detection circuit, an identification detection circuit or an identification judgment circuit. This embodiment does not limit the form of the detection unit 110 .

Specifically, if the host computer is electrically connected to the USB U1 of the extension device 11, the detection unit 110 can determine that the host computer is connected to the extension device 11 according to the signal transmitted by the host computer. Wherein, the signal transmitted by the host computer is, for example, regulated by the Human Interface Device Class (HIDClass), so that the detection unit 110 can identify the function and identity of the host computer.

If the peripheral device is electrically connected to the USB U1 of the extension device 11 first, the detection unit 110 can determine that the extension device 11 is connected to the peripheral device according to the signal transmitted by the peripheral device. The signals transmitted by the peripheral devices are, for example, regulated by the Human Interface Device Class (HIDClass), so that the detection unit 110 can identify the functions and identities of the peripheral devices. This embodiment does not limit the operation form of the detection unit 110 .

The control unit 112 is electrically connected to the detection unit 110 . In practice, the control unit 112 is, for example, a central processing unit (CPU), a microprocessor, a control chip or a control circuit. This embodiment does not limit the form of the control unit 112 . In practice, the control unit 112 selects one of the first path R11 and the second path R12 according to the detection signal of the detection unit 110 . Wherein, the detection unit 110 and the host processing unit 114 form a first path R11 . The detection unit 110 and the device processing unit 116 form a second path R12.

The host processing unit 114 is a simulated peripheral device for enabling the computer host to communicate with the simulated peripheral device, and the device processing unit 116 is a simulated host for enabling at least one peripheral device to communicate with the simulated host. To put it simply, if the host computer is electrically connected to the extension device 11 first, the host processing unit 114 operates to emulate a peripheral device, so that the host computer communicates with the simulated peripheral device. On the contrary, if the peripheral device is electrically connected to the extension device 11 first, the device processing unit 116 operates to emulate a host computer, so that the peripheral device communicates with the emulation host.

In practice, the host processing unit 114 and the device processing unit 116 can be respectively implemented by emulation chips, emulation firmware or emulation circuits. Wherein, the host processing unit 114 is, for example, an emulated mouse chip, an emulated screen chip or an emulated keyboard chip. The device processing unit 116 is implemented, for example, as an emulated host chip or an emulated laptop chip. The present embodiment does not limit the forms of the host processing unit 114 and the device processing unit 116 .

It is worth mentioning that the conversion unit 118 is used to convert the USB signal into a network signal. The network signal is output or input from the input/output interface IO1. In practice, the conversion unit 118 is, for example, a signal conversion circuit or a signal conversion firmware. In addition, the input/output interface IO1 is, for example, an RJ-45 port. In this way, the USB signal can be transmitted to the conversion unit 118 through the first path R11 or the second path R12 , and the signal is converted by the conversion unit 118 and then output to the transmission line 14 . This embodiment does not limit the forms of the conversion unit 118 and the I/O interface IO1.

When the detection unit 110 detects that the computer host is electrically connected to at least one universal serial bus U1, the detection unit 110 outputs a first detection signal to the control unit 112, and the control unit 112 controls the universal serial bus U1 according to the first detection signal. The serial bus signal is transmitted through the first path R11 and controls the operation of the host processing unit 114 .

When the detection unit 110 detects that at least one peripheral device is electrically connected to at least one universal serial bus U1, the detection unit 110 outputs a second detection signal to the control unit 112, and the control unit 112 uses the second detection signal to Controlling the transmission of the USB signal through the second path R12 and controlling the operation of the device processing unit 116 .

Further, the control unit 112 outputs a first notification signal to the extension device 11 at the other end of the transmission line 14 according to the first detection signal. Sexually connect at least one peripheral device.

The control unit 112 outputs a second notification signal to the extension device 11 at the other end of the transmission line 14 according to the second detection signal, and the second notification signal is used to instruct the extension device 11 at the other end of the transmission line 14 to automatically determine whether it can be electrically connected to the computer host.

It can be seen from this that the extension device 11 of this embodiment is plugged in by a computer device or a peripheral device through the universal serial bus U1, thereby setting it as the extender at the sending end or the receiving end, and notifying the extension device at the other end of the transmission line 14 12. Automatically determine that at least one peripheral device or computer device can be electrically connected. This increases the speed of setting the extension system 1 and signal transmission. This embodiment does not limit the operation form of the extension system 1 .

FIG. 2 is a schematic functional block diagram of an extension system according to another embodiment of the present invention. See Figure 2. An extension system 1a is suitable for electrical connection with a host computer and at least one peripheral device. The extension system 1a includes two extension devices 11, 12 and a hub device H1. The hub device H1 is electrically connected between the two extension devices 11 , 12 .

Wherein, the extension system 1 a in FIG. 2 is similar in structure to the extension system 1 in FIG. 1 , and the same components included in the two will be denoted by the same reference numerals below. The difference between the two extension systems 1a and 1 is that: the wire collecting device H1 is electrically connected between the two extension devices 11 and 12 . In practice, the hub device H1 is, for example, a network hub (HUB), an IP sharer or a router (ROUTER). This embodiment does not limit the form of the hub device H1.

The hub device H1 can not only extend the transmission distance of the signal. In other embodiments, the hub device H1 can also be electrically connected to multiple extension devices 11 , 12 . That is to say, the extension system 1 a includes a plurality of extension devices 11 , 12 and a hub device H1 . This embodiment does not limit the structure and form of the extension system 1a.

In addition, the extension devices 11 , 12 include, for example, two or more universal serial buses U1 , U2 , thereby electrically connecting more than two peripheral devices or computer hosts. This embodiment does not limit the forms of the extension devices 11 , 12 . In addition, this embodiment can also automatically switch the first path R11 or the second path R12 to transmit the USB signal. For example, the control unit 112 automatically controls the transmission of the USB signal through the first path R11 according to the first detection signal, and controls the operation of the host processing unit 114; or the control unit 112 automatically controls the universal serial bus according to the second detection signal. The bus signal is transmitted through the second path R12 and controls the operation of the device processing unit 116 . The rest are similar and will not be repeated here.

FIG. 3 is a schematic functional block diagram of an extension system according to another embodiment of the present invention. See Figure 3. The extension system 1b in FIG. 3 is similar in structure to the extension system 1 in FIG. 1 , and the same components included in the two will be denoted by the same reference numerals below. The difference between the extension systems 1 b and 1 is that the extension device 11 further includes a video output/input interface P1 , a video conversion unit 119 and an operation unit 117 . The extension device 12 further includes a video output/input interface P2 , a video conversion unit 129 and an operation unit 127 .

For the convenience of description, this embodiment is described as "the host computer or the video source device S1 is plugged into the extension device 11, so that another extension device 12 is automatically set as an extender that can be plugged with peripheral devices". In other embodiments, the extension device 11 may have a video output/input interface P1 and a video output/input interface P2. When the peripheral device is plugged into the extension device 11 first, the other extension device 12 is automatically set as an extender that can be plugged into the host computer or the video source device S1. This embodiment does not limit the form of the extension system 1b.

In practice, the video output/input interface P1 is electrically connected to the video conversion unit 119, the video conversion unit 119 is electrically connected to the conversion unit 118 and the control unit 112, and the video output/input interface P1 is electrically connected to a video source device S1. Wherein, the video source device S1 is, for example, DVD, Blu-ray player, multimedia player or other video source devices. This embodiment does not limit the form of the video source device S1.

The video output/input interface P1 is, for example, a high-resolution multimedia interface (HDMI), a video graphics array interface (VGA), a digital video interface (DVI), a D terminal, a serial digital interface or a digital video interface (DisplayPort), the input and output interface IO1 is an RJ-45 port. This embodiment does not limit the form of the video output/input interface P1.

The extension device 12 further includes a video output/input interface P2 and a video conversion unit 129, the video conversion unit 129 is electrically connected to the conversion unit 128 and the control unit 122, and the video output/input interface P2 is electrically connected to a display device D1. The display device D1 is, for example, a screen, a monitor or a projector. This embodiment does not limit the form of the display device D1.

The video output/input interface P2 is, for example, a high-resolution multimedia interface (HDMI), a video graphics array interface (VGA), a digital video interface (DVI), a D terminal, a serial digital interface or a digital video interface (DisplayPort), the input and output interface IO2 is an RJ-45 port. This embodiment does not limit the form of the video output/input interface P2.

In addition, the video conversion units 119 and 129 are realized by, for example, a video conversion chip or video conversion firmware. For example, the video conversion units 119 and 129 can convert high-definition multimedia interface (HDMI) signals into network packet signals. This embodiment does not limit the forms of the video conversion units 119, 129.

It should be noted that the operation unit 117 is electrically connected to the control unit 112 . The control unit 112 controls the USB signal to be transmitted through the first path R11 or the second path R12 according to an operation instruction from the operation unit 117 , and controls the operation of the host processing unit 114 or the device processing unit 116 . To put it simply, in this embodiment, the first path R11 or the second path R12 can be switched to transmit the USB signal through manual operation. Similarly, it can be seen that the operation unit 127 electrically connected to the control unit 122 also has the same functions as the operation unit 117 . Wherein, the operation unit 117 is realized by, for example, a switch, a button, a dialer or other manual mechanisms. This embodiment does not limit the form of the operation units 117, 127. The rest are similar and will not be repeated here.

In summary, this invention is an extension device, in which the computer device or peripheral device is plugged into the universal serial bus of the extension device, and the detection unit detects the computer device or peripheral device to set the transmission of the extension device itself. Status (sender or receiver). For example, the extension device at the sending end performs signal processing and transmission through the first path of the host processing unit, and the extension device at the receiving end performs signal processing and transmission through the second path of the device processing unit. In addition, the extension device notifies the extension device at the other end through the transmission line, so that the extension device at the other end sets its own transmission status (transmitting end or receiving end), thereby improving the convenience of use of the extension device and its system. In this way, this creation can indeed improve the speed of transmission settings and installation settings of the extension device.

What has been described above is a preferred embodiment of the present utility model, and it should be pointed out that for those skilled in the art, some improvements and modifications can also be made without departing from the principles described in the present utility model. Within the protection scope of the present utility model.

Claims (9)

1. an extension apparatus, be applicable to be electrically connected with a main frame or at least one peripheral device, it is characterized in that, described extension apparatus comprises:

At least one USB (universal serial bus), for being electrically connected described main frame or described at least one peripheral device;

One detecting unit, is electrically connected described at least one USB (universal serial bus), for detecting described main frame or described at least one peripheral device;

One control module, is electrically connected described detecting unit;

One host processing units, is electrically connected described detecting unit and described control module, and described detecting unit and described host processing units form one first path; And

One device processing unit, is electrically connected described detecting unit and described control module, and described detecting unit and described device processing unit form one second path;

Wherein, when described detecting unit detects described main frame electric connection described at least one USB (universal serial bus), described detecting unit exports one first detection signal to described control module, described control module controls USB (universal serial bus) signal by described first path transmission according to described first detection signal, and controls the running of described host processing units;

Wherein, when described detecting unit detects described at least one peripheral device electric connection described at least one USB (universal serial bus), described detecting unit exports one second detection signal to described control module, described control module controls USB (universal serial bus) signal by described second path transmission according to described second detection signal, and controls the running of described device processing unit.

2. extension apparatus as claimed in claim 1, it is characterized in that, wherein said control module exports the described extension apparatus of one first notice signal to the transmission line other end according to described first detection signal, and the described extension apparatus automatic discrimination that described first notice signal is used to indicate the described transmission line other end can be electrically connected described at least one peripheral device.

3. extension apparatus as claimed in claim 2, it is characterized in that, wherein said control module exports the described extension apparatus of one second notice signal to the described transmission line other end according to described second detection signal, and the described extension apparatus automatic discrimination that described second notice signal is used to indicate the described transmission line other end can be electrically connected described main frame.

4. extension apparatus as claimed in claim 1, it is characterized in that, also comprise a converting unit and an output/input interface, described converting unit is electrically connected described host processing units, described device processing unit and described control module, described output/input interface is electrically connected described converting unit, described converting unit is used for USB (universal serial bus) signal to be converted to a network signal, and described network signal exports or input from described output/input interface.

5. extension apparatus as claimed in claim 4, it is characterized in that, also comprise one video frequency output/incoming interface and a Video Quality Metric unit, described video frequency output/incoming interface is electrically connected described Video Quality Metric unit, described Video Quality Metric unit is electrically connected described converting unit and described control module, and described video frequency output/incoming interface is electrically connected a source video sequence device or a display device.

6. extension apparatus as claimed in claim 5, it is characterized in that, wherein said video frequency output/incoming interface is a high resolution multimedia interface, a video and graphic array interface, a Digital Video Interface, a D terminal, a serial digital interface or a digital video interface, and described output/input interface is RJ-45 port.

7. extension apparatus as claimed in claim 1, is characterized in that, wherein said at least one USB (universal serial bus) is the port meeting USB (universal serial bus) 1.0,1.2,2.0,3.0 and 3.1TypeC specification one of them or combination.

8. extension apparatus as claimed in claim 1, it is characterized in that, wherein said control module controls USB (universal serial bus) signal by described first path transmission automatically according to described first detection signal, and control the running of described host processing units, and described control module controls USB (universal serial bus) signal by described second path transmission automatically according to described second detection signal, and control the running of described device processing unit.

9. extension apparatus as claimed in claim 1, it is characterized in that, also comprise an operating unit, be electrically connected described control module, described control module is according to an operation instruction of described operating unit, control USB (universal serial bus) signal by described first path or described second path transmission, and control described host processing units or the running of described device processing unit.