an audio communication device
An audio communication equipment and audio signal technology, which is applied in the direction of sensor parts, sensors, electrical components, etc., can solve the problems of inconsistent equipment standards and inability to communicate, and achieve the effects of shielding inconsistent standards, ensuring accuracy, and improving stability
Active Publication Date: 2019-01-18
BEIJING E CARE CENTURY TECH
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Problems solved by technology
[0003] Because different headphone jack standards have inconsistent regulations on the headphone connection port, on the same device, when external devices with different headphone jack standards communicate with the same device, there is a problem that the devices cannot communicate because of inconsistent standards.
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Embodiment Construction
[0035] An embodiment of the present invention provides an audio communication device, which realizes the compatibility of different earphone jack standards.
[0036] In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is an embodiment of a part of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.
[0037] In order to facilitate the description of the embodiment of the present invention, first introduce the structure of the earphone jack, refer to figure 1 As shown, it i...
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The embodiment of the present invention discloses audio communication equipment, belonging to the technical field of audio communication. A problem that audio communication equipment can not be compatible with headphone jacks of different standards in the prior art is solved. The device provided by the embodiment of the present invention comprises a microprocessor, an audio signal transmitting circuit, an audio signal receiving circuit and a mode switching circuit, wherein the microprocessor is connected to the audio signal transmitting circuit and the audio signal receiving circuit respectively, the mode switching circuit comprises a voltage comparator and is used for comparing the voltages of an earphone MIC end and a GND end and outputting a comparison result to a double-pole double-throw switch set, a resistor is in parallel connection with the input ends of the voltage comparator, the double-pole double-throw switch set is used for driving the MIC end to connect with a device output end under the driving of the output signal of the voltage comparator, and the GND end of an external connection device is connected to the GND end of the device.
Description
technical field [0001] The present invention relates to the technical field of audio communication, in particular to an audio communication device. Background technique [0002] Mobile phones, laptops and other devices with sound playback and sound collection functions have microprocessor or CPU processing functions at the same time, and the headphone jack can be used as a data transmission channel to realize the modulation of playback data and (collection of received data) ) demodulation. [0003] Since different headphone jack standards have inconsistent regulations on the headphone connection port, on the same device, when external devices with different headphone jack standards communicate with the same device, there is a problem that the devices cannot communicate because of inconsistent standards. Contents of the invention [0004] In order to solve the above-mentioned technical problems, an embodiment of the present invention provides an audio communication device,...
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IPC IPC(8): H04R3/00
Inventor 田野詹良余占江
Owner BEIJING E CARE CENTURY TECH