Universal Serial Bus Switch
A universal serial bus and switcher technology, applied in the field of switchers, can solve problems such as signal attenuation, loss, and data signal errors, and achieve the effects of increasing distance and stability, and reducing manufacturing complexity and cost
Active Publication Date: 2016-03-16
NUETEQ TECH
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Problems solved by technology
However, in the process of data transmission between the master device, the switcher and the controlled device, it is easy to cause signal attenuation and loss along with the length of the transmission distance, so that the distance between the master device and the controlled device must be limited. within a short distance to avoid data signal errors
In addition, most USB devices support the function of hardware plug-n-play, but if the electronic device is often directly removed from the port of the switch when transmitting data with the switch at high speed, it is easy to cause damage. The connection between the electronic device and the switch is unstable and the data is lost
Method used
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Embodiment Construction
[0049] [Example of Universal Serial Bus Switcher]
[0050] Please refer to figure 2 , figure 2 It is a block diagram of an embodiment of a universal serial bus switcher provided by the present invention. In this example, the universal serial bus switcher 2 (hereinafter referred to as the switcher 2) can be connected to a plurality of master devices 4a, 4b and a controlled device 3, so that the master devices 4a and 4b can be respectively established through the switching of the switcher 2 The connection path with the controlled device 3 to control the controlled device 3 individually. The switcher 2 may include main control signal compensation units 20 a and 20 b , a first switching unit 21 , a second switching unit 22 , a device signal compensation unit 23 , a control unit 24 and an operation unit 25 . Wherein, the main control signal compensation unit 20a is used for electrically connecting with the main control device 4a, and the main control signal compensation unit 2...
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A universal sequence bus switcher is used for switching a route between at least one main control device and a controlled device so as to transmit data signals. The switcher comprises a first switching unit, a second switching unit, a plurality of main control signal compensation units and a device signal compensation unit, wherein each main control signal compensation unit is connected to main control device in a one to one manner, and balances and amplifies a received first data signal; the device signal compensation unit is connected with the controlled device, and balances and amplifies the first data signal; and the first switching unit and the second switching unit are connected with one of the main control signal compensation unit in a switching manner through a switching instruction and transmit the first data signal and a second data signal between the device signal compensation unit and the connected main control signal compensation unit respectively. Therefore, the stability and the distance of the data transmission are increased.
Description
technical field [0001] The present invention relates to a switch, and in particular to a universal serial bus switch. Background technique [0002] The USB switch supporting ultra-high-speed data transmission can be used to arrange the transmission path of the electronic device conforming to the USB 3.0 specification. like figure 1 As shown, when the main control device is connected to the connection port 100 of the switcher 1, the switcher 1 usually provides an ultra-high-speed data channel 102 and a high-speed data channel 104 through the switching control chip 10 to directly control the super-high-speed data channel 104 of the main control device. High-speed data and high-speed data switching, and the data is directly transmitted from the switching control chip 10 to the controlled device connected to the connection port 106 . However, in the process of data transmission between the master device, the switcher and the controlled device, it is easy to cause signal attenu...
Claims
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IPC IPC(8): G06F13/40
Inventor 张惠智
Owner NUETEQ TECH