An audio circuit and audio playback system based on an intelligent terminal
An intelligent terminal and audio circuit technology, applied in transducer circuits, electrical components, telephone structures, etc., can solve the problems of small speaker cavity space and poor sound quality, and achieve the effect of good hearing effect and structural space saving.
Active Publication Date: 2022-05-20
SHENZHEN TRANSSION COMM LTD
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Problems solved by technology
[0003] 1. When the smart terminal itself performs audio playback, it uses the built-in speaker of the fuselage to produce sound. Due to the limitation of the structure of the smart terminal, the cavity space of the speaker is small and the sound quality is poor;
[0004] 2. When using external headphones or speakers, an additional audio jack needs to be designed, which is a challenge for the design of smart terminals
Method used
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[0040] The implementation of the present application will be described by specific specific examples below, and those skilled in the art can easily understand other advantages and effects of the present application from the content disclosed in this specification.
[0041] In the following description, reference is made to the accompanying drawings, which illustrate several embodiments of the application. It is to be understood that other embodiments may be utilized, and that mechanical, structural, electrical, and operational changes may be made without departing from the spirit and scope of the present disclosure. The following detailed description should not be considered as limiting, And the scope of the embodiments of the present application is defined only by the claims of the issued patent. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application. Spatially relative terms such as "upper", "lowe...
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The present invention provides an audio circuit and an audio playback system based on an intelligent terminal. The audio circuit includes: a built-in module, which is installed in an intelligent terminal, connected to the main board of the intelligent terminal and a USB interface, and receives the main board of the intelligent terminal. Sending the control signal and audio signal, forwarding the audio signal to the USB interface of the intelligent terminal according to the state of the control signal; the external module is arranged in a sound box, and is connected to the intelligent terminal through the USB interface of the sound box , receiving the audio signal forwarded by the built-in module and playing the audio. After adopting the above-mentioned technical scheme, the integration of communication function, charging function and audio playback function is realized on the USB interface of the intelligent terminal, no additional audio interface is needed, and the structural space required for the audio hardware interface is saved; the use of an external loudspeaker realizes better auditory effect.
Description
technical field [0001] The invention relates to the field of intelligent terminals, in particular to an audio circuit and an audio playback system based on an intelligent terminal. Background technique [0002] At present, intelligent terminal devices such as smartphones, tablet computers, and multimedia players are commonly used in daily life and work, and it is convenient for people to realize functions such as external contact, file browsing, and entertainment. Especially as people's cultural life becomes increasingly rich, more and more users like to use smart terminals to play music or videos and enjoy the beautiful experience brought by high technology. The smart terminal often involves a built-in speaker, and users can directly play audio on the smart terminal; The common interface standard of jack is 3.5mm interface. The prior art still has the following problems: [0003] 1. When the smart terminal itself performs audio playback, it uses the built-in speaker of t...
Claims
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Login to View More IPC IPC(8): H04M1/02H04R3/00
CPCH04M1/02H04R3/00
Inventor 沈谊俊芦海龙
Owner SHENZHEN TRANSSION COMM LTD