Wireless headset based on supersonic wave, and control system of the same
A technology of wireless earphones and control systems, applied in earpiece/earphone accessories, earphones to reduce environmental noise, transducer circuits, etc., can solve problems such as blank application of ultrasonic waves, improve the ability of anti-electromagnetic interference, facilitate implementation, and simple structure Effect
Pending Publication Date: 2017-11-24
SHENZHEN TRANSSION COMM LTD
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Problems solved by technology
Due to the limitation of human hearing, mobile terminals such as traditional mobile phones hardly pay attention to the sound in the ultrasonic frequency band, and the application of ultrasonic waves on mobile phones is almost blank.
Method used
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Embodiment Construction
[0051] A number of specific embodiments of the present invention will be described below in conjunction with the accompanying drawings.
[0052] The working principle of ultrasonic signal transmission, such as figure 2As shown, the two ultrasonic transducers in the system are coupled together through a medium such as gas, liquid or solid; the original audio signal to be transmitted at the sending end is modulated into electrical signals of different frequencies through the adjustment module, and then passed through the first ultrasonic transducer The electrical signal is converted into an ultrasonic signal and enters the channel; the receiving end is the reverse process of the sending end, the second ultrasonic transducer receives the ultrasonic signal transmitted through the medium, converts it into an electrical signal, and then converts the signal from the ultrasonic signal through the demodulation module The frequency band is demodulated to restore the original audio info...
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The invention provides a wireless headset based on supersonic wave, and a control system of the same. The wireless headset based on supersonic wave is characterized in that in a transmitting terminal at a terminal device, an audio original signal is modulated into the carrier wave to form corresponding high frequency data; after amplification, a first ultrasonic energy transducer is driven to convert an electric signal into an ultrasonic signal, and the ultrasonic signal is emitted to the outside; and the wireless headset is taken as the receiving terminal of the ultrasonic signal, a second ultrasonic energy transducer is set to be coupled with the first ultrasonic energy transducer through the medium to convert the received ultrasonic signal into an electronic signal so as to restore a sound signal through demodulation after voltage amplification, and then audio amplification processing is performed to enable the headset to realize sound production. The wireless headset based on supersonic wave uses supersonic wave to carry information to perform wireless transmission, and can effectively improve the anti-electromagnetic interference capability and the efficiency for signal transmission.
Description
technical field [0001] The invention relates to a wireless earphone and its control technology, in particular to an ultrasonic-based wireless earphone and its control system. Background technique [0002] Wireless earphones are widely used as accessories for terminals such as mobile phones, tablet computers, personal computers, and televisions. Wireless earphones are not limited by earphone wires, and their portability and transmission distance have been significantly improved. Such as figure 1 As shown, the signal transmitted by the sending device propagates through the medium, and the wireless earphone receives and matches the signal. After decoding and other processing, the sound is restored from the received signal, and the speaker is driven to play to the user. [0003] However, the existing wireless earphones are generally based on Bluetooth technology or WiFi technology for signal transmission, which is greatly affected by the environment: because they all use the I...
Claims
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IPC IPC(8): H04R1/10H04R3/00
CPCH04R1/1083H04R1/1091H04R3/00
Inventor 庞杰许逸君张玉磊
Owner SHENZHEN TRANSSION COMM LTD