Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Amplitude adjustment method and sound production device

A sounding device and amplitude adjustment technology, applied in measuring devices, instruments, measuring electrical variables, etc., can solve problems such as loudspeaker noise

Active Publication Date: 2019-01-25
VIVO MOBILE COMM CO LTD
View PDF7 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Embodiments of the present invention provide an amplitude adjustment method and generating device to solve the problem of loudspeaker noise in the prior art

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Amplitude adjustment method and sound production device
  • Amplitude adjustment method and sound production device
  • Amplitude adjustment method and sound production device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0015] refer to figure 1 , shows a flow chart of steps of an amplitude adjustment method according to Embodiment 1 of the present invention.

[0016] The amplitude adjustment method provided by the embodiment of the present invention includes the following steps:

[0017] Step 101: The digital signal processor detects the current and voltage of the detection device in real time, and calculates the impedance value of the detection device based on the c...

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 embodiment of the invention provides an amplitude adjustment method and a sound production device. The sound production device comprises a horn and a digital signal processor, wherein the horn comprises a detection device. The method is characterized by comprising the steps of detecting a current and a voltage of the detection device in real time by the digital signal processor, and calculating a resistance value of the detection device according to the current and the voltage; comparing the resistance value with a preset resistance value to obtain a comparison result; and adjusting a current output value and a voltage output value of the horn according to the comparison result. By the method, the resistance value of the detection device can be detected in real time; and by comparing the resistance value of the detection device with the preset resistance value and adjusting the current output value and the voltage output value of the horn, the amplitude of the horn is controlled not to exceed maximum amplitude, so that noise is prevented.

Description

technical field [0001] The present invention relates to the technical field of terminal equipment, in particular to an amplitude adjustment method and a sound generating device. Background technique [0002] At present, with the popularization of mobile terminals, people use them more and more frequently in various occasions and places. Due to some physical characteristics of electronic devices, they are easily affected by the environment, so that the performance of the whole machine is affected to a certain extent. The impact, especially in some relatively harsh environments, such as low or high pressure, low or high temperature, dry or humid environments, etc., will have a relatively large impact on the overall parameters of the electroacoustic device. [0003] The current control method for the sound generating device is to use the smart power amplifier to model the speaker, and control the maximum voltage and current used at different frequencies according to the standar...

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
IPC IPC(8): G01R27/08
CPCG01R27/08
Inventor 陆阿楠
Owner VIVO MOBILE COMM CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com