Audio switching device and security authentication system
A transfer device and security authentication technology, applied in the field of information security, can solve problems such as the inability to interact with USBKEY, and achieve the effect of ensuring security issues
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Embodiment 1
[0030] figure 1 It is a schematic structural diagram of Embodiment 1 of the audio switching device of the present invention; figure 1 As shown, it includes: a main control chip 101, a power supply 102, an audio communication interface 103, an audio signal processing unit 104, and a USB communication interface 105, the power supply 102 is connected to the main control chip 101, and the audio communication interface 103 is connected to the main control chip 101 The audio signal processing unit 104 is connected to the audio port of the portable terminal, and the audio signal processing unit 104 is connected to the main control chip 101; the audio communication interface 103 is used to obtain simulated transaction data; the audio signal The processing unit 104 is used to digitize the simulated transaction data to generate digital transaction data, and transmit it to the main control chip 101; the main control chip 101 is used to work in host mode to convert the digital transaction...
Embodiment 2
[0032] figure 2 It is a schematic structural diagram of Embodiment 2 of the audio switching device of the present invention; figure 2As shown, it includes: a main control chip 101, a power supply 102, an audio communication interface 103, an audio signal processing unit 104, and a USB communication interface 105; different from the first embodiment above, this embodiment can also include a microusb female head 106 , the microusb female connector 106 is used to charge the power supply 102 .
[0033] Because MicroUSB supports OTG, it is 5pin. The definition of Micro series includes Micro-B series slots used by standard equipment; Micro-AB slots used by OTG equipment; Micro-A and Micro-B plugs, and cables.
[0034] Further, in an embodiment of the audio conversion device, the USB communication interface 105 includes a USB type female head connected to the main control chip 101, and a microusb male head connected to the USB type female head, so as to communicate with the The ...
Embodiment 3
[0036] image 3 It is a schematic structural diagram of Embodiment 3 of the audio switching device of the present invention; image 3 As shown, it includes: a main control chip 101, a power supply 102, an audio communication interface 103, an audio signal processing unit 104, a USB communication interface 105, and a microusb female head 106. The USB communication interface 105 includes a The USBtype female head 115 and the microusb male head 125 connected to the USBtype female head 115 are used for peer-to-peer data interaction with portable terminals with OTG functions.
[0037] Further, in this embodiment, a boost unit 107 is also included, and the boost unit 107 is used for the working voltage required by the USB type female connector 115 when the main control chip 101 works in the host mode.
[0038] The boost unit 107 may specifically be a DC boost.
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