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

Audio signal transfer device

An audio signal and switching device technology, applied in the electronic field, can solve the problems of increasing the cost of electronic equipment, increasing the volume of electronic equipment, low output power of low-impedance voice coil speaker interface, etc., to achieve reduced volume and low hardware cost , cost reduction effect

Active Publication Date: 2012-02-15
TENDYRON CORP
View PDF6 Cites 16 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Since the output power of the low-impedance voice coil speaker interface is very small, except for electronic devices with low power consumption (such as headphones), electronic devices that receive audio signals through the low-impedance voice coil speaker interface usually need to use an external power supply or a built-in Only batteries can work normally, which increases the cost of electronic equipment and increases the volume of electronic equipment

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
  • Audio signal transfer device
  • Audio signal transfer device
  • Audio signal transfer device

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0048] figure 1 It is a schematic structural diagram of the first embodiment of the audio signal switching device of the present invention; figure 1 As shown, the audio signal conversion device includes: a speaker interface, a booster unit (such as figure 1 Step-up transformer shown), rectifier unit, filter unit, power output pin (such as figure 1 VCC pin shown), the audio signal output pin; where:

[0049] The speaker interface is used for connecting with an audio signal sending device (for example, a mobile phone) and receiving an audio signal output by the audio signal sending device.

[0050] The above-mentioned speaker interface can be a low-impedance voice coil speaker interface (for example, a headphone interface), which includes: audio signal input pins (such as figure 1 AUDIO pin shown), ground pin (such as figure 1 GND pin shown).

[0051] In addition, the speaker interface may also include a microphone (MIC) pin, which is used to output a signal to an audio sig...

no. 2 example

[0067] figure 2 It is a schematic structural diagram of the second embodiment of the audio signal switching device of the present invention; figure 2 As shown, the difference between the second embodiment of the present invention and the first embodiment is:

[0068] The audio signal output pin is connected with the audio signal input pin of the speaker interface.

[0069] Optionally, a signal amplifier may also be included between the audio signal output pin and the audio signal input pin of the speaker interface, that is, the input end of the signal amplifier is connected to the audio signal input pin, and the output end of the signal amplifier is used as the audio signal output pin. Pin (or connected to the audio signal output pin), output the amplified audio signal.

no. 3 example

[0071] image 3 It is a schematic structural diagram of the third embodiment of the audio signal switching device of the present invention; image 3 As shown, the difference between the third embodiment of the present invention and the first embodiment is:

[0072] In the third embodiment of the present invention, only one output pin of the secondary coil of the step-up transformer is connected to the input pin of the rectification unit, so the rectification unit only needs to include one input pin, and the rectification unit only needs to include one diode. Can.

[0073] Obviously, compared with the first embodiment, this embodiment will lose half of the electric energy of the secondary coil of the step-up transformer, but the circuit structure can be simplified and the hardware cost can be reduced.

[0074] In this embodiment, another output pin of the secondary coil of the step-up transformer is grounded, and the step-up transformer does not include taps.

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 relates to an audio signal transfer device. The audio signal transfer device comprises an input port, an output port, a booster unit, a rectification unit and a filter unit, wherein the input port comprises a first audio signal input pin, which is used for receiving the audio signals transmitted by an audio signal-transmitting device and outputting the audio signals to the input endof the booster unit, the booster unit is used for boosting the audio signals inputted by the input end of the booster unit and outputting the boosted audio signals to the input end of the rectification unit via the output end of the booster unit, the rectification unit is used for rectifying the boosted audio signals inputted by the input end of the rectification unit and outputting the rectifiedlevel to the input end of the filter unit via the output end of the rectification unit, and the filter unit is used for filtering the level inputted by the input end of the filter unit and outputtingthe filtered direct-current level to the power output pin of the output port via the output end of the filter unit.

Description

technical field [0001] The invention relates to the field of electronic technology, in particular to an audio signal switching device. Background technique [0002] With the development of audio signal encoding / decoding technology, more and more electronic devices transmit data through audio interface. For example, the electronic device may be connected to the mobile communication device through a low-impedance voice coil speaker interface (eg, earphone jack) of the mobile communication device (eg, a mobile phone), and receive audio signals output by the mobile communication device. [0003] Since the output power of the low-impedance voice coil speaker interface is very small, except for electronic devices with low power consumption (such as headphones), electronic devices that receive audio signals through the low-impedance voice coil speaker interface usually need to use an external power supply or a built-in Only batteries can work normally, which increases the cost 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
IPC IPC(8): H01R31/06H01R13/66H01R13/719
CPCH04R5/033H04R5/04H04R2499/11H04R3/12
Inventor 李东声
Owner TENDYRON CORP
Features
  • Generate Ideas
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com