Test system of mobile telephone speaker

A mobile phone and test system technology, which is applied in the direction of public address system, electrical components, branch office voice amplifier, etc., can solve the problem of high test cost, and achieve the effect of low cost and accurate test

Inactive Publication Date: 2009-06-03
BYD CO LTD
View PDF0 Cites 28 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the embodiments of the present invention is to provide a mobile phone speaker test system, which aims to solve the problem that the existing mobile phone speaker test system has too high testing cost

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
  • Test system of mobile telephone speaker

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0015] In the present invention, the existing and mature devices are used to form a mobile phone speaker test system, especially a sound card is used as an acquisition card to replace a dedicated audio analysis instrument and human ear test. The system has low cost and accurate testing. features.

[0016] In the production process of mobile phones, the test of mobile phone speakers mainly involves the testing of sound pressure level (Sound Pressure Level, SPL) and total harmonic distortion (Total Harmonic Distortion, THD). Whether the wave distortion is within the range specified by the customer, ...

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 invention is adapted for the test field of a mobile telephone, and provides a test system of a mobile telephone speaker, comprising a sound card, a test control unit, an amplifier, a pinboard, a microphone and a power amplifier; the test system of the mobile telephone speaker is constituted by integrating the existing devices with mature techniques, uses the sound card as a capture card, and replaces the special audio analytical apparatus and ear test, with low cost and accurate test.

Description

technical field [0001] The invention belongs to the field of mobile phone testing, in particular to a mobile phone speaker testing system. Background technique [0002] The sending and receiving quality of mobile phone voice is a crucial issue for mobile users' calls, and it is the most direct factor to measure the quality of mobile phones. Speech should not cause harm to the human body, especially the human ear. [0003] Traditionally, there are two main methods for testing the speaker of a mobile phone. One method is to listen with ears. The cost of this method is very low, but the problem of inaccurate testing may occur due to human judgment. In order to improve the accuracy of the test, another method uses a dedicated audio analysis instrument to make the mobile phone sound and analyze the sound, but the cost of this test method is too high to be suitable for testing mobile phones in mass production. Contents of the invention [0004] The purpose of the embodiment of...

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): H04Q1/20H04M1/60H04R27/00
Inventor 盛春艳易万宏
Owner BYD CO LTD
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