Method and device for controlling USB channel switching

A channel switch and switcher technology, applied in the USB field, can solve problems such as inconvenient use, inability to cope, and inflexibility, and achieve the effect of saving mistaken switching problems
CN112181880APending Publication Date: 2021-01-05深圳拔越软件有限公司
9 Cites 2 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
深圳拔越软件有限公司
Publication Date
2021-01-05

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
Patent Text Reader

Abstract

The invention discloses a method for controlling USB channel switching. The method comprises the following steps: 1, monitoring the access condition of main equipment of a USB switcher; 2, when it ismonitored that there is a newly accessed master device on the USB switcher, judging whether there is an earlier accessed master device on the USB switcher, and if there is an earlier accessed master device on the USB switcher, executing the step 3; 3, judging whether the master device which is accessed earlier uses each slave device or not, and if not, executing the step 4; 4, sending a switchinginstruction to the USB switcher to enable the USB switcher to switch and connect each slave device to a newly accessed master device. According to the method, the problem of wrong switching when the next speaker accesses the next main device in advance to save time during switching according to a first-in-first-out strategy after use can be avoided. The invention discloses a device for controllingUSB channel switching.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to USB technology, in particular to a method and device for controlling USB signal switching. Background technique

[0002] At present, many video USB switches on the market are integrated with USB switches at the same time, so that the participants can easily use the microphones, cameras and other slave devices in the conference room. These slave devices can only be connected to one computer at a time. When there are multiple When all computers are connected to the USB switcher, there needs to be a mechanism to decide which computer to switch the USB signal to.

[0003] At present, there are mainly two ways to switch USB signals: one is manual switching, and the USB signal is switched through the control interface provided by the USB switcher; the other is automatic switching, which is first come first served (switching the USB signal computer connected first) or last-come-first-served (switch the USB signal to the computer conn...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More