Unlock instant, AI-driven research and patent intelligence for your innovation.

Frequency conversion type minisize platform sounding equipment

A sounding device and frequency conversion technology, which can be used in stereo circuit arrangement and other directions, and can solve problems such as unclear hearing.

Inactive Publication Date: 2006-01-18
INVENTEC CORP
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there will still be situations where you can't hear clearly.

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
  • Frequency conversion type minisize platform sounding equipment
  • Frequency conversion type minisize platform sounding equipment
  • Frequency conversion type minisize platform sounding equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0063] The present invention will be further described below in conjunction with accompanying drawing and embodiment:

[0064] see Figure 1A --1C, the figure illustrates the general small speaker sound, the human ear can hear and the frequency response diagram of ordinary human voice. It can be seen that the sound frequency of the small speaker is roughly close to the audible frequency of the human ear, but the frequency of the average person's sound is lower than the other two. However, since many electronic devices emphasize the pronunciation of real people, this will lead to the dilemma that the small speakers cannot produce sounds audible to human ears. The present invention tries to use the spectral characteristics of the sound produced by the small speaker to adjust the sound to the audible frequency range for the sound produced by the small speaker. That is, it converts lower frequency sounds into the audible range of higher frequencies.

[0065] In order to achieve ...

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

Based on the principle of similarity between the sound frequency spectrum of mini type speaker and the frequency spectrum of person ear audibility, the audio part with lower frequency of the mini type platform is converted to audibility higher frequency. That is the not soniferous part of the mini type platform is converted to the soniferous part. The device includes following units. The low frequency conversion unit is utilized to receive the low frequency component in sound and converts it to audio frequency. The high frequency filtering unit receives the audio frequency and filters out the audio frequency from the high frequency components. The mixer is connected to the low frequency conversion unit and the high frequency filtering unit, mixing the outputs of the said two units into one output audio.

Description

technical field [0001] The invention relates to a sounding device, in particular to a frequency conversion micro-platform sounding device which converts the low-frequency sound from the micro-platform into audible high-frequency sound. Background technique [0002] At present, many electronic products on the market, such as mobile phones, electronic dictionaries and personal digital assistants (PDAs), etc., have been reduced in size for the sake of portability. As a result of the miniaturization of electronic products, the devices in many products must also be reduced accordingly, for example, circuit boards and speakers. [0003] This miniaturization trend certainly brings considerable convenience, but because of its miniaturization, some devices cannot be used most appropriately. The above-mentioned speaker is an example. Due to the reduction of the speaker, the low-frequency sound cannot be emitted. Most of the current solutions use female voices for pronunciation, beca...

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 Patents(China)
IPC IPC(8): H04R5/04
Inventor 韦景川
Owner INVENTEC CORP