Bluetooth audio receiver with interface shared by charging and audio
A shared interface, bluetooth audio technology, applied in the direction of near-field transmission system using transceivers, etc., can solve the problem that the audio and charging interface cannot be shared, and achieve the effect of light weight, cheap price, and reduced size
Active Publication Date: 2013-07-10
ZHEJIANG COMPUPAL CORP
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Problems solved by technology
[0006] The present invention is to overcome the shortage that the audio and charging interface of the Bluetooth audio receiver in the prior art cannot be shared, and provides a Bluetooth audio receiver with a charging and audio sharing interface
Method used
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[0028] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0029] Such as figure 1 The illustrated embodiment is a bluetooth audio receiver with shared interface for charging and audio, including bluetooth main control chip 1, operational amplifier chip 2 for converting differential audio signal into stereo signal, and earphone plug or power cord plug Matching 4-segment audio base 3; the Bluetooth main control chip includes a charging port 4 and two audio output ports 5; the two audio output ports of the two audio output ports of the Bluetooth chip are electrically connected to the operational amplifier chip respectively, and the operational amplifier chip There are two stereo output ports 6, which are respectively the left audio output port and the right audio output port. The left audio output port is electrically connected to the fourth pin 8 of the audio female seat, and the right audio output port...
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The invention discloses a bluetooth audio receiver with an interface shared by charging and audio. The bluetooth audio receiver with the interface shared by the charging and the audio comprises a bluetooth main control chip, an operational amplifier chip used for converting difference audio signals to stereo signals and four audio female seats matched with a headset plug or a power line plug. The bluetooth main control chip comprises a charging port and two audio output ports. The two audio output ports of the bluetooth main control chip are respectively in electric connection with the operational amplifier chip. Two stereo output ports of the operational amplifier chip are respectively in electric connection with a third pin and a forth pin of the audio female seats. A second pin of the audio female seats is connected with the ground. The charging port is in electric connection with a first pin of the audio female seats. The bluetooth audio receiver with the interface shared by the charging and the audio has the interface shard by the charging and the audio and has the advantages of being small in size, light in weight, convenient to carry, convenient to use, low in price, good in anti-disturbance performance, capable of achieving the function of static electricity elimination and good in safety performance.
Description
technical field [0001] The invention relates to the field of audio technology, in particular to a bluetooth audio receiver with a common interface for charging and audio. Background technique [0002] Bluetooth headset is a headset that applies Bluetooth technology to hands-free headsets, allowing users to avoid annoying wires and easily talk in various ways. [0003] Commonly used Bluetooth headsets include a Bluetooth audio receiver and a headset connected to the receiver; the Bluetooth audio receiver includes components such as a Bluetooth chip, circuit board, battery, charging stand, and antenna, and the audio interface and charging interface on the Bluetooth audio receiver independent settings. [0004] Therefore, the commonly used Bluetooth audio receiver has the characteristics of large size, heavy weight, inconvenience to carry, and high price. [0005] Chinese Patent Authorization Publication No. CN201365242Y, the authorized publication date on December 16, 2009 d...
Claims
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Inventor 张志明
Owner ZHEJIANG COMPUPAL CORP