Weak sound receiver

A sound receiver, receiver technology, applied in ultrasonic/sonic/infrasonic transmission systems, electrical components, transmission systems, etc., to achieve the effect of enhancing the acquisition function

Inactive Publication Date: 2004-06-30
JINPENG INDAL SHANGHAI
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is: in many occasions, it is necessary to collect weak sound signals. In the prior art, for the collection of weak signals, the collection of weak sound signals is mostly realized by shortening the distance or accurate positioning, but This method is limited by various factors, and it is not used in many occasions, and the sound signal acquisition process is complicated, and the collected sound signal is noisy.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0005] The present invention is a weak sound receiver, the weak sound receiver is composed of a weak signal receiver and a sound playback circuit, characterized in that the weak signal receiver is connected with a filter circuit, and the filter circuit The connection is provided with a signal amplification circuit, the connection of the signal amplification circuit is provided with the sound playback circuit, and the weak signal receiver extracts a weak sound signal from the external environment and transmits it to the filter circuit. The filtering circuit performs filtering processing on the received sound signal, and after the sound signal is further amplified by the signal amplification circuit, the sound is played by the sound playback circuit. Specifically, the filtering circuit adopts the mean filtering algorithm.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The weak sound receiver comprises weak signal receiver and playback circuit. The weak signal receiver is connected to a filtering circuit. The weak signal receiver picks up weak sound signal from external environment, and the filtering circuit does filtering processing for received sound signal. Then, signal amplification circuit amplifies sound signal and the playback circuit plays sound back.

Description

Technical field: [0001] The invention relates to a sound receiving device, in particular to a weak sound receiver. Background technique: [0002] In many occasions, it is necessary to collect weak sound signals. In the prior art, the collection of weak signals is mostly achieved by shortening the distance or accurate positioning to realize the collection of weak sound signals, but this method is limited by various factors. There are not many occasions for use, and the sound signal acquisition process is complicated, and the collected sound signal is noisy. Invention content: [0003] The technical problem to be solved by the present invention is: in many occasions, it is necessary to collect weak sound signals. In the prior art, for the collection of weak signals, the collection of weak sound signals is mostly realized by shortening the distance or accurate positioning, but This method is limited by various factors, and it is not used in many occasions, and the sound sign...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): H04B11/00
Inventor 刘崇毅
Owner JINPENG INDAL SHANGHAI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap