Abstract: The present disclosure relates to systems and methods for signal transmission. The systems and methods may receive a composite multimedia signal, wherein the composite multimedia signal may be encoded in a frame format including an active zone and a blanking zone. The composite multimedia signal may be associated with a plurality of multimedia signals acquired by a plurality of acquisition devices. The systems and methods may insert one or more control signals in a predetermined section of the blanking zone. The systems and method may further transmit the one or more control signals to one or more target acquisition devices of the plurality of acquisition devices via a transmission medium.

Abstract: The present disclosure relates to a system and method. The system includes: a storage device storing a set of instructions; and one or more processors in communication with the storage device. When executing the set of instructions, the one or more video processors: synchronize a signal with a first PN sequence, wherein the signal includes a plurality of second PN sequences, marked as 0 PN sequence, 1 PN sequence, . . . , (k?1) PN sequence, k sequence, wherein k is a positive integer number; determine that the signal is synchronized with the first PN sequence; determine a first target distance between the (k?1) PN sequence and the k sequence; and determine a formality standard of the signal based on the first target distance.

Abstract: The present disclosure relates to systems and methods for synchronizing audio and video. The systems and methods may perform operations including: obtaining a data stream including a sequence of video frames and a sequence of audio samples; inputting the sequence of video frames into a video channel, the sequence of video frames being processed and outputted from the video channel; inputting, for processing, the sequence of audio samples into an audio channel, the audio channel including a data buffer configured to buffer processed audio samples, a volume threshold of the data buffer being determined according to a time for processing one or more successive video frames; determining that a data volume of audio samples buffered in the data buffer exceeds the volume threshold; and in response to a determination that the data volume of buffered audio samples exceeds the volume threshold, outputting the buffered audio samples from the audio channel.

Abstract: A method for processing and transmitting multimedia signals received from a plurality of channels are provided. The method may include receiving at least two multimedia signals from a plurality of channels, and generating a composite multimedia digital signal by coding the multimedia signals in a frame format. At least one of the multimedia signals may include a video signal. The frame format may include an active zone and a blanking zone, the active zone may be configured to encode at least part of the multimedia signals, and the blanking zone may be configured to encode format information. The method may further include converting at least part of the encoded multimedia signals in the active zone into analog signals to generate a composite multimedia signal. The method may further include transmitting the composite multimedia signal to a receiving device via a transmission medium.

Abstract: The present disclosure relates to a system and method. The system includes: a storage device storing a set of instructions; and one or more processors in communication with the storage device. When executing the set of instructions, the one or more video processors: synchronize a signal with a first PN sequence, wherein the signal includes a plurality of second PN sequences, marked as 0 PN sequence, 1 PN sequence, . . . , (k?1) PN sequence, k sequence, wherein k is a positive integer number; determine that the signal is synchronized with the first PN sequence; determine a first target distance between the (k?1) PN sequence and the k sequence; and determine a formality standard of the signal based on the first target distance.

Abstract: The present disclosure relates to a system and method. The system includes: a storage device storing a set of instructions; and one or more processors in communication with the storage device. When executing the set of instructions, the one or more video processors: synchronize a signal with a first PN sequence, wherein the signal includes a plurality of second PN sequences, marked as 0 PN sequence, 1 PN sequence, . . . , (k?1) PN sequence, k sequence, wherein k is a positive integer number; determine that the signal is synchronized with the first PN sequence; determine a first target distance between the (k?1) PN sequence and the k sequence; and determine a formality standard of the signal based on the first target distance.

Abstract: The present disclosure relates to systems and methods for synchronizing audio and video. The systems and methods may perform operations including: obtaining a data stream including a sequence of video frames and a sequence of audio samples; inputting the sequence of video frames into a video channel, the sequence of video frames being processed and outputted from the video channel; inputting, for processing, the sequence of audio samples into an audio channel, the audio channel including a data buffer configured to buffer processed audio samples, a volume threshold of the data buffer being determined according to a time for processing one or more successive video frames; determining that a data volume of audio samples buffered in the data buffer exceeds the volume threshold; and in response to a determination that the data volume of buffered audio samples exceeds the volume threshold, outputting the buffered audio samples from the audio channel.

Abstract: The present disclosure relates to systems and methods for signal transmission. The systems and methods may receive a composite multimedia signal, wherein the composite multimedia signal may be encoded in a frame format including an active zone and a blanking zone. The composite multimedia signal may be associated with a plurality of multimedia signals acquired by a plurality of acquisition devices. The systems and methods may insert one or more control signals in a predetermined section of the blanking zone. The systems and method may further transmit the one or more control signals to one or more target acquisition devices of the plurality of acquisition devices via a transmission medium.

Abstract: A method for processing and transmitting multimedia signals received from a plurality of channels are provided. The method may include receiving at least two multimedia signals from a plurality of channels, and generating a composite multimedia digital signal by coding the multimedia signals in a frame format. At least one of the multimedia signals may include a video signal. The frame format may include an active zone and a blanking zone, the active zone may be configured to encode at least part of the multimedia signals, and the blanking zone may be configured to encode format information. The method may further include converting at least part of the encoded multimedia signals in the active zone into analog signals to generate a composite multimedia signal. The method may further include transmitting the composite multimedia signal to a receiving device via a transmission medium.

Abstract: The present disclosure relates to a system and method. The system includes: a storage device storing a set of instructions; and one or more processors in communication with the storage device. When executing the set of instructions, the one or more video processors: synchronize a signal with a first PN sequence, wherein the signal includes a plurality of second PN sequences, marked as 0 PN sequence, 1 PN sequence, . . . , (k?1) PN sequence, k sequence, wherein k is a positive integer number; determine that the signal is synchronized with the first PN sequence; determine a first target distance between the (k?1) PN sequence and the k sequence; and determine a formality standard of the signal based on the first target distance.