Wireless microphone capable of avoiding same frequency interference

Abstract

The invention discloses a wireless microphone capable of avoiding same frequency interference. The wireless microphone capable of avoiding the same frequency interference comprises a transmitter and a receiver. The transmitter comprises a transmitter microprocessor control system, an identification code generating module, an audio processing module, a radio-frequency emission module and a transmitter order control channel processing module. The receiver comprises a receiver microprocessor control system, an identification code recovering module, a channel searching module and a receiver order control channel processing module. Due to the shortages that a prior wireless microphone product is backward in a channel management method, disorder in channel use and low in spectrum resource using rate, low in compatibility and enables same frequency interference between the products to happen easily and the like, command control channel processing technology is combined, a wireless microphone channel management mechanism is innovated, scientific distribution and ordered use of channels are achieved, the spectrum resource using rate and the compatibility of the products are improved and key problems of automatic identification and real-time process of the same frequency interference, automatic shift of the channels and the like are solved.

Description

technical field [0001] The invention relates to a wireless microphone product, in particular to a wireless microphone capable of avoiding co-channel interference. Background technique [0002] The wireless microphone consists of two parts: a transmitter and a receiver. The transmitter modulates the audio signal converted by the pickup into a radio frequency signal and sends it out. The receiver receives the radio frequency signal emitted by the transmitter and restores it to an audio signal. Due to its convenient use and good performance, it has been widely used in on-site interviews, live lectures, large-scale performances, KTV entertainment, teaching places and conference systems. Wireless microphones have also naturally developed into an important variety of wireless audio products. [0003] Due to the widespread use of wireless microphones, co-channel interference has become more and more serious, even affecting normal use. In order to avoid co-channel interference in ...

AI Technical Summary

Problems solved by technology

[0004] The present invention uses manual setting of wireless audio communication channels for wireless microphone products. The channel management method is backward, and the channels are used out of order, which reduces the utilization rate of spectrum resources and easily causes co-channel interference. The compatibility between products is weak, and the manual channel management operation is good. The complexity, the randomness of manual selection of communication channels and other defects, especially the backward channel management methods such as using infrared frequency matching to select channels after the existing wireless microphones use scanning channels or manual frequency selection, combined with channel control management technology, Innovate the wireless microphone channel management mechanism, realize automatic identification of co-channel interference, automatic channel switching, intelligent channel management, orderly use of channels, improve spectrum resource utilization, improve product adaptability and stability, and enhance product competitiveness

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