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wireless receiver

A wireless receiver, sound data technology, applied in speech analysis, instruments, digital transmission systems, etc., can solve the problems of abnormal, difficult, and inability to effectively prevent sound interruption, extreme noise, etc.

Inactive Publication Date: 2015-08-19
TAMURA KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Therefore, the technical result of Patent Document 1 brings discomfort to the user, and cannot be said to effectively prevent the occurrence of sound interruption or the occurrence of extreme noise.
[0010] In addition, in the technology of Patent Document 2, although the user does not hear the noise and can eliminate the discomfort caused by it, the sound becomes silent, which brings a sense of dissonance to the user.
[0011] Therefore, it is difficult to eliminate the abnormality in sound without causing discomfort and dissonance to the user through the existing technology.

Method used

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Embodiment Construction

[0022] Hereinafter, embodiments of the wireless receiver of the present invention will be described in detail with reference to the drawings, taking a receiver using this method as an example.

[0023] [1. The structure of the receiver]

[0024] figure 1 It is a block diagram showing the structure of the wireless receiver of this embodiment. figure 1 The shown receiver 1 is a device on the side that receives the sound of the wireless microphone system. The receiver 1 receives and analyzes audio data in a diversity manner, and when there is audio data that has no error or has been successfully corrected, outputs the audio.

[0025] When an error occurs in the analysis result and the audio data, if the error time of the audio data is less than a predetermined time, the receiver 1 uses the audio data immediately before the error in a plurality of frames to generate and output a reverberation. The lingering sound is a sound recognized as a lingering sound by the user, and the...

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Abstract

The invention provides a wireless receiver. Even when error occurs in received data that caused by wave condition and the like, irregularities in sound can be eliminated in a condition of bringing no unpleasant feeling. When the wireless receiver receives carriers containing sound data used for detecting and correcting codes having error data successively, the error of the sound data is corrected according to the code and the error of the corrected sound data is checked. As a result of error checking, when error is detected in the sound data, the sound data of a plurality of frames having no error detected is read from sound cache, and sound data of after sound is generated and output to a loudspeaker.

Description

technical field [0001] The present invention relates to a wireless receiver for receiving a sound carrier and outputting the sound to a speaker, for example for use as a wireless microphone system. Background technique [0002] In recent years, in wireless communication devices such as wireless microphones and wireless receivers such as wireless LANs, adoption of a diversity communication system and digitalization are rapidly progressing from the viewpoint of ensuring transmission quality. [0003] In a diversity communication system, transmission quality is ensured by using a plurality of channels and receiving data from a channel with less radio degradation. Also, in terms of digitalization, data error detection and error correction are performed on the receiving side by adding redundancy to transmission data. As redundancy methods, vertical parity check method, horizontal parity check method, Hamming coding method, CRC method, Reed-Solomon coding method, and convolutiona...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B1/10G10L19/008
CPCG10L19/005H04L1/201
Inventor 氷渡昌辉梶川明宏
Owner TAMURA KK