Switching device applied to a display and method of switching working modes

Patent metadata

Field	Value
Publication number	US-12450185-B2
Application number	US-202318236958-A
Country	US
Kind code	B2
Filing date	Aug 23, 2023
Priority date	Sep 30, 2022
Publication date	Oct 21, 2025
Grant date	Oct 21, 2025

Abstract

A switching device and a related method of switching working modes are applied to a display. The switching device includes a universal serial bus (USB) connector, a multiplexer, a USB hub and a controller. The USB connector is connected to a USB device or a voice control device. The multiplexer is electrically connected to the USB connector. The USB hub is electrically connected to the multiplexer and used to output a USB detection signal. The controller is electrically connected to the multiplexer and the USB hub, and used to output a reminder command. The controller determines whether the multiplexer actuates a USB channel for the USB connector or actuates a voice control channel for the voice control device in accordance with a response from at least one of the USB detection signal and the reminder command.

First claim

What is claimed is:

1. A switching device applied to a display, the switching device comprising:
a universal serial bus (USB) connector adapted to connect with a USB device or a voice control device;
a multiplexer electrically connected to the USB connector;
a USB hub electrically connected to the multiplexer and adapted to output a USB detection signal; and
a controller electrically connected to the multiplexer and the USB hub and adapted to output a reminder command, the controller presetting that the voice control device is actuated, and determining whether the multiplexer actuates a USB channel for the USB connector or locks a voice control channel for the actuated voice control device in accordance with a response from the reminder command.

2. The switching device of claim 1 , wherein the controller acquires an action signal output by the voice control device in accordance with the reminder command, and output a multiple choice command to the multiplexer for actuating the voice control channel and further turning on the voice control device.

3. The switching device of claim 2 , wherein the controller confirms whether the action signal is received in a predefined period of time, so as to determine whether to maintain the voice control channel.

4. The switching device of claim 1 , wherein the controller determines that the USB detection signal does not detect the USB device, and outputs a multiple choice command to the multiplexer for actuating the voice control channel.

5. The switching device of claim 1 , wherein the controller does not acquire an action signal output by the voice control device in accordance with the reminder command, and outputs a multiple choice command to the multiplexer for actuating the voice control channel.

6. The switching device of claim 5 , wherein the controller determines that the USB detection signal detects the USB device, and outputs a multiple choice command to the multiplexer for locking the USB channel and ensuring connection of the USB device.

7. The switching device of claim 6 , wherein the controller confirms whether the USB detection signal detects the USB device in a predefined period of time, so as to determine whether to maintain the USB channel.

8. The switching device of claim 5 , wherein the controller determines that the USB detection signal does not detect the USB device, and outputs a multiple choice command to the multiplexer for switching to the voice control channel.

9. A method of switching working modes and applied to a display with a universal serial bus (USB) connector, a multiplexer, a USB hub and a controller, for determining whether the display is connected with a USB device or a voice control device, the method comprising:
the controller outputting a reminder command to the USB connector via the multiplexer;
the controller receiving a USB detection signal from the USB hub; and
the controller presetting that the voice control device is actuated, and determining whether the multiplexer actuates a USB channel for the USB connector or locks a voice control channel for the actuated voice control device in accordance with a response from the reminder command.

10. The method of claim 9 , further comprising:
the controller presetting that the multiplexer actuates the voice control channel, and detecting an external device connected with the USB connector.

11. The method of claim 9 , further comprising:
the controller determining whether an action signal output by the voice control device in accordance with the reminder command is acquired, and deciding whether to maintain the voice control channel in accordance with a determination result.

12. The method of claim 11 , further comprising:
the controller outputting a multiple choice command to the multiplexer for locking the voice control device and turning on the voice control device when acquiring the action signal.

13. The method of claim 12 , further comprising:
the controller confirming whether the action signal is received in a predefined period of time, so as to determine whether to maintain the voice control channel.

14. The method of claim 11 , further comprising:
the controller outputting a multiple choice command to the multiplexer for shutting down the voice control channel and actuating the USB channel when not acquiring the action signal.

15. The method of claim 14 , wherein the controller does not acquire the action signal when the voice control device is separated from the USB connector, or when an external device connected with the USB connector does not belong to the voice control device.

16. The method of claim 9 , further comprising:
the controller outputting a multiple choice command to the multiplexer for locking the USB channel and ensuring connection of the USB device when determining that the USB detection signal detects the USB device.

17. The method of claim 16 , further comprising:
the controller confirming whether the USB detection signal detects the USB device in a predefined period of time, so as to determine whether to maintain the USB channel.

18. The method of claim 9 , further comprising:
the controller outputting a multiple choice command to the multiplexer for shutting down the USB channel and actuating the voice control channel when determining that the USB detection signal does not detect the USB device.

19. The method of claim 9 , wherein the reminder command is a command prompt applied to a universal asynchronous receiver/transmitter (UART), and the voice control device is an external device conforming to communications and video accessibility act (CVAA).

20. The method of claim 9 , wherein the voice control device comprises a text to speech (TTS) integrated circuit adapted to output an action signal in accordance with the reminder command.

Assignees

• Qisda Corp

Inventors

• Tsai Cheng-Hsiu

Classifications

• G06F13/4022

  using switching circuits, e.g. switching matrix, connection or expansion network (G06F13/4009 takes precedence) · CPC title

• G10L15/22

  Procedures used during a speech recognition process, e.g. man-machine dialogue · CPC title

• G06F2213/0042

  Universal serial bus [USB] · CPC title

• G10L2015/223

  Execution procedure of a spoken command · CPC title

• G06F13/385 Primary

  for adaptation of a particular data processing system to different peripheral devices · CPC title