Pulse modulation decoding and coding method, device and system

Abstract

The invention relates to a pulse modulation encoding and decoding method, device and system. In an instance, a transmitting end makes pulse modulation encoding and redundancy encoding treatments on the information to be transmitted and then transmits it to a receiving end; the receiving end makes redundancy decoding and pulse modulation decoding treatments on the received information to recover the information transmitted by the transmitting end. Thus, on the condition of less extra overhead of processing capacity and bandwidth, it remarkably reduces the probability of packet loss occurrence in the information transmission course in communication network.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a pulse modulation coding and decoding method, device and system. Background technique [0002] Internet (IP) telephony is a brand-new communication service business, which encodes, compresses and packages the analog signals of ordinary telephones, transmits them to the other party through the network, decodes them, decompresses them and restores them to analog signals, so that they can be used on the Internet or Voice communication is implemented on the IP network, and its specific implementation process is shown in Figure 1. [0003] The emergence of IP telephony services has promoted the full utilization of network resources and reduced the cost of voice services. Therefore, the IP telephone service has been popularized and developed rapidly. [0004] The voice technology (VoIP) carried in the IP telephony service includes signaling technology, coding technolo...

AI Technical Summary

Problems solved by technology

For example, the gene cycle replication method shown in Figure 3 can achieve a good voice effect when the packet loss rate is low, but there is still a certain amount of phase noise in an environment with a high packet loss rate

Moreover, for occasions with high requirements for voice quality, solutions based solely on the receiving end or the sending end cannot meet the requirements.

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