支持信息显示和热键控制的切换器电路及切换器

Abstract

本实用新型公开了支持信息显示和热键控制的切换器电路及切换器，该电路包括视频切换模块、控制模块以及USB模块，其中：通过视频切换模块对视频信号进行转换、对视频通道进行切换，通过USB模块实现USB上行接口的通道选择以及USB下行接口的HUB控制，且能够通过外接的鼠标和 / 或键盘实现热键功能处理，通过控制模块显示视频信号接口和USB接口的通道连接信息以及USB接口的最大支持速率信息。可见，本实用新型能够实现对视频信号接口以及USB接口的连接状态、传输速率、通道选择等信息进行直观显示，提高用户在使用切换器时获取相关信息的便捷性，同时用户可以根据显示信息进行切换器故障排查，提高排查切换器故障问题的准确性和效率，提升用户使用体验。

Claims

1. A switcher circuit supporting information display and hot key control, characterized by, The circuit includes a video switching module, a control module, and a USB module. The control module includes a display submodule, and the USB module includes a first processing submodule, a second processing submodule, and a USB interface module, wherein: The first end of the video switching module is used to input a video input signal, the second end of the video switching module is used to output a video output signal, and the third end of the video switching module is electrically connected to the first end of the control module. The first end of the USB module is used to input a USB input signal, the second end of the USB module is used to output a USB output signal, and the third end of the USB module is electrically connected to the second end of the control module. The video switching module is used to switch the signal source of the video input signal and convert the video input signal into the video output signal. It is also used to acquire the video signal transmission status and send the video signal transmission status to the control module. The first processing submodule is used to select and switch the working channel of the first type of USB input signal, perform HUB control on the first type of USB output signal, detect the first USB signal transmission information of the first type of USB interface module, and send the first USB signal transmission information to the control module. The second processing submodule is used to select and switch the working channel of the second type of USB input signal, perform HUB control on the second type of USB output signal, detect the second USB signal transmission information of the second type of USB interface module, and send the second USB signal transmission information to the control module. The second processing submodule is further configured to receive hotkey control information and send the hotkey control information to the control module; The control module is used to display the video signal transmission status, the first USB signal transmission information, and the second USB signal transmission information through the display submodule, and is also used to execute corresponding hotkey control operations according to the hotkey control information.

2. The switcher circuit supporting information display and hot key control according to claim 1, characterized in that, The control module further includes a control chip, and the display submodule includes an indicator light circuit, a display screen interface circuit, and a display screen, wherein: The first terminal of the control chip is electrically connected to the third terminal of the video switching module, the second terminal of the control chip is electrically connected to the third terminal of the USB module, the third terminal of the control chip is electrically connected to the indicator light circuit, the fourth terminal of the control chip is electrically connected to the first terminal of the display screen interface circuit, and the second terminal of the display screen interface circuit is electrically connected to the display screen. The indicator light circuit and the display screen are used to display the video signal transmission status, the first USB signal transmission information, and the second USB signal transmission information, respectively.

3. The switcher circuit supporting information display and hotkey control according to claim 1 or 2, characterized in that, The second processing submodule includes a hotkey circuit, and the USB interface module includes a USB uplink interface circuit and a USB downlink interface circuit, wherein: The first terminal of the hotkey circuit is electrically connected to the second terminal of the control module, the second terminal of the hotkey circuit is electrically connected to the first terminal of the USB uplink interface circuit, the third terminal of the hotkey circuit is electrically connected to the first terminal of the USB downlink interface circuit, the second terminal of the USB uplink interface circuit is used to input USB input signals, and the second terminal of the USB downlink interface circuit is used to output USB output signals. The hotkey circuit is used to select and switch the working channel of the second type of USB input signal, control the second type of USB output signal via a HUB, detect the second USB signal transmission information of the second type of USB interface module, and send the second USB signal transmission information to the control module. It is also used to receive hotkey control information and send the hotkey control information to the control module.

4. The switcher circuit supporting information display and hot key control according to claim 3, characterized in that, The first processing submodule includes a USB uplink interface switching circuit and a HUB circuit, wherein: The first terminal of the USB uplink interface switching circuit and the first terminal of the HUB circuit are electrically connected to the second terminal of the control module, the second terminal of the USB uplink interface switching circuit is electrically connected to the first terminal of the USB uplink interface circuit, the third terminal of the USB uplink interface switching circuit is electrically connected to the second terminal of the HUB circuit, and the third terminal of the HUB circuit is electrically connected to the first terminal of the USB downlink interface circuit. The USB uplink interface switching circuit is used to select and switch the working channel for the first type of USB input signal. The HUB circuit is used to control the USB output signal of the first type, detect the first USB signal transmission information of the USB interface module of the first type, and send the first USB signal transmission information to the control module.

5. The switcher circuit supporting information display and hot key control according to claim 3, wherein, The USB downlink interface circuit includes a USB downlink interface, a first current-limiting short-circuit protection circuit, a first ESD protection circuit, and a PD charging circuit, wherein: The first end of the USB downstream interface is electrically connected to the third end of the HUB circuit and the third end of the hotkey circuit, respectively. The second end of the USB downstream interface is used to output USB output signals. The third end of the USB downstream interface is electrically connected to the first current limiting short circuit protection circuit. The fourth end of the USB downstream interface is electrically connected to the first ESD protection circuit. The fifth end of the USB downstream interface is electrically connected to the PD charging circuit.

6. The switcher circuit supporting information display and hot key control according to claim 1 or 2, characterized by The video switching module includes a video input submodule, a video switching submodule, and a video output submodule, wherein: The first end of the video input submodule is used to input video input signals, the second end of the video input submodule is electrically connected to the first end of the video switching submodule, the first end of the video output submodule is used to output video output signals, the second end of the video output submodule is electrically connected to the second end of the video switching submodule, and the third end of the video switching submodule is electrically connected to the first end of the control module. The video switching submodule is used to switch the signal source of the video input signal and convert the video input signal into the video output signal.

7. The switcher circuit supporting information display and hot key control according to claim 6, characterized in that, The video input submodule includes a video input interface circuit, a second ESD protection circuit, a first DDC processing circuit, and an HPD output level conversion circuit. The video output submodule includes a video output interface circuit, a third ESD protection circuit, a second DDC processing circuit, and a second current-limiting short-circuit protection circuit, wherein: The first terminal of the video input interface circuit is used to input video input signals. The second terminal of the video input interface circuit is electrically connected to the first terminal of the video switching submodule. The third terminal of the video input interface circuit is electrically connected to the second ESD protection circuit. The fourth terminal of the video input interface circuit is electrically connected to the first DDC processing circuit. The fifth terminal of the video input interface circuit is electrically connected to the HPD output level conversion circuit. The first terminal of the video output interface circuit is used to output a video output signal. The second terminal of the video output interface circuit is electrically connected to the second terminal of the video switching submodule. The third terminal of the video output interface circuit is electrically connected to the third ESD protection circuit. The fourth terminal of the video output interface circuit is electrically connected to the second DDC processing circuit. The fifth terminal of the video output interface circuit is electrically connected to the second current limiting short circuit protection circuit.

8. The switcher circuit supporting information display and hot key control according to claim 2, characterized in that, The control module also includes a simulation debugging interface circuit, a debugging information interface circuit, and a desktop controller interface circuit, wherein: The fifth terminal of the control chip is electrically connected to the simulation debugging interface circuit, the sixth terminal of the control chip is electrically connected to the debugging information interface circuit, and the seventh terminal of the control chip is electrically connected to the desktop controller interface circuit.

9. The switcher circuit supporting information display and hot key control according to claim 3, wherein, The USB downstream interface circuit includes at least one Type-A interface and at least one Type-C interface of the first type. The video input signal includes at least two HDMI video input signals, and the video output signal includes at least one HDMI video output signal, which includes an 8K resolution HDMI video signal.

10. A switcher, characterized in that, The switcher includes a switcher circuit that supports information display and hotkey control as described in any one of claims 1-9.

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