Terminal equipment, data server, sign-in method, sign-in processing method and system
A data server and terminal equipment technology, applied in the field of information processing, can solve the problem of low sign-in efficiency, achieve simple and convenient sign-in, and improve sign-in efficiency
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[0032] In order to make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be described clearly and completely in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of the embodiments of the present invention, not all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.
[0033] figure 1 This is a flowchart of Embodiment 1 of the sign-in method of the present invention, such as figure 1 As shown, the method of this embodiment includes:
[0034] Step 101: Obtain an ultrasonic signal of a specific frequency band emitted by an ultrasonic transmitting device.
[0035] Ultrasound is a sound wave with a frequen...
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