Abstract: The present disclosure provides methods, apparatuses, and system for TOTP-based identity authentication. In one aspect, the method includes: obtaining a two-dimensional code from a web end, obtaining, from the two-dimensional code, a key for enabling Time-based One-time Password (TOTP) and a first signature. The first signature is generated by an authentication server by signing the key using a first private key in a first public-private key pair. The method further includes performing signature verification on the first signature based on a first public key in the first public-private key pair, in response to determining the signature verification is successful, performing token calculation based on the key to generate a first token, and sending the first token to a user.

Abstract: The present disclosure relates to a system and method for synchronous video display on at least one display. The method may comprises receiving a channel of video signal from each data acquisition port of a plurality of data acquisition ports during a time interval, each channel of video signal comprising a plurality of video frames captured during the time interval. The method may also comprises assigning a count value for each video frame of the channel of video signal as synchronization information for each video frame of the channel of video signal to form a pool of video frames each corresponding to a count value. The method may further comprises selecting video frames with the same count value from the pool of video frames as synchronized video frames, and transmitting, through the plurality of output ports, the synchronized video frames for synchronous display on the at least one display.

Abstract: The present disclosure relates to a system and method for synchronous video display on at least one display. The method may comprises receiving a channel of video signal from each data acquisition port of a plurality of data acquisition ports during a time interval, each channel of video signal comprising a plurality of video frames captured during the time interval. The method may also comprises assigning a count value for each video frame of the channel of video signal as synchronization information for each video frame of the channel of video signal to form a pool of video frames each corresponding to a count value. The method may further comprises selecting video frames with the same count value from the pool of video frames as synchronized video frames, and transmitting, through the plurality of output ports, the synchronized video frames for synchronous display on the at least one display.

Abstract: A tray and a display module production apparatus using the same are provided. The tray includes a base, a main bracket and a limit bracket set. The main bracket includes a cross bar, which is connected with the base and is located above the base. The limit bracket set is connected to the cross bar. The limit bracket set includes a first bracket, a second bracket and at least one third bracket, and the first bracket and the second bracket are arranged in a longitudinal direction of the cross bar. A first limit portion is provided on the first bracket, and a second limit portion is provided on the second bracket. The third bracket is slidably mounted on the cross bar in the longitudinal direction of the cross bar. A third limit portion is provided on the third bracket. Limit directions of the first limit portion, the second limit portion and the third limit portion are different from each other.