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Media stream plug detection switching device and method thereof

A plug detection and switching device technology, applied in the direction of electrical components, etc., can solve the problems of increased manufacturing cost, inconvenience, application limitations, etc.

Active Publication Date: 2018-01-19
FAIRCHILD SEMICON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the existence of these two different standards, the audio system using one standard can only use the standard audio plug corresponding to the standard, which leads to application limitations
For example, the audio system manufactured for some countries or regions adopts the American standard, while the audio system manufactured for other countries or regions adopts the OMTP standard. Inconvenient, for example, the audio plug may need to be reconfigured with a 0 ohm resistor, otherwise only a specific headset is equipped with a specific audio plug

Method used

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  • Media stream plug detection switching device and method thereof
  • Media stream plug detection switching device and method thereof
  • Media stream plug detection switching device and method thereof

Examples

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Embodiment approach

[0039] The audio plug detection and switching device shown in this embodiment includes an oscillator logic unit, a detection unit and a switching enable timing unit, but the present invention is not limited to this embodiment, for example, it is also possible to directly output the switching control only through the detection unit The signal is used to control the action of the switching unit, without the need for an oscillator logic unit and a switching enable timing unit.

[0040] Refer to the attached Figure 4 The detection process of an embodiment of the present invention is further described.

[0041] Figure 4 It is a schematic flowchart of a method for detecting and switching an audio plug according to an embodiment of the invention.

[0042] Such as Figure 4 As shown, the audio plug detection switching method includes: detecting the signal access status of multiple pins of the connected audio plug, and outputting a control signal according to the detection result;...

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Abstract

A device for detecting and switching media stream plugs and a method thereof are provided, wherein the device for detecting and switching media stream plugs includes: a detection unit for detecting the signal access states of multiple pins of the connected audio plug, and according to the detection result Outputting a control signal; the switching unit, according to the control signal, switches the plurality of pins of the audio plug to signal transmission terminals corresponding to their signal access states. Through the technical scheme of the invention, audio plugs of two different standards can be commonly used in audio systems of different standards.

Description

technical field [0001] The invention relates to a media stream plug detection switching device and a method thereof. Background technique [0002] Two existing audio plug standards are OMTP (Open Mobile Terminal Platform, open mobile terminal platform) standard and American standard respectively. OMTP standard and American standard audio plugs such as figure 1 As shown, the left side is the OMPT standard plug, which includes 4 poles (pole, pin) of LSPKR, RSPKR, MIC, and GND. The right side is the American standard audio plug, which includes 4 poles including L SPKR, RSPKR, GND, and MIC. Due to the existence of these two different standards, an audio system adopting one standard can only use a standard audio plug corresponding to the standard, which leads to application limitations. For example, the audio system manufactured for some countries or regions adopts the American standard, while the audio system manufactured for other countries or regions adopts the OMTP standar...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04R29/00
Inventor 王一
Owner FAIRCHILD SEMICON CORP