Abstract: An overlapped multiplexing-based modulation and demodulation method and device are disclosed. In the modulation method, a precoding structure is used, and a transmit end first performs parity check product code-based coding on an input information sequence, generates a factor graph for a coding result and according to a coding rule, then performs overlapped multiplexing-based modulation and coding, and transmits a coded signal by using an antenna. In the demodulation method, a signal is transmitted by using a channel, and after receiving the signal by using an antenna, a receive end first performs digital signal processing, including processes such as synchronization and equalization, then performs overlapped multiplexing-based demodulation and decoding, and finally performs factor graph-based belief propagation decoding on a decoding result, to finally obtain a decoded sequence.

Abstract: This disclosure provides a cloud-based device and an operating method thereof. The device includes an analysis apparatus, where the analysis apparatus includes: a first HMM analyzer, configured to respectively receive a scenario input signal, an audience expression input signal, and an audience voice input signal, use them as observable sequences of a first HMM, and deduce a hidden state change sequence of the first HMM; an emotional state HMM analyzer, configured to use the hidden state change sequence of the first HMM as an observable sequence of an emotional state HMM, and deduce a hidden state change sequence of the emotional state HMM; and a voice signal processing unit; and a decision apparatus, configured to select humorous behavior based on the hidden state change sequence of the emotional state HMM, and consolidate a humorous behavior instruction and the standard instruction to obtain a final output instruction.