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User terminal, audio Bluetooth play method and digital signal processor thereof

A technology of digital signal and playback method, which is applied in electrical digital data processing, input/output process of data processing, digital recording/reproduction, etc. Imported effects

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AI Technical Summary

Problems solved by technology

As a result, the application processor cannot go to sleep during the entire playback, resulting in higher power consumption

Method used

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  • User terminal, audio Bluetooth play method and digital signal processor thereof
  • User terminal, audio Bluetooth play method and digital signal processor thereof
  • User terminal, audio Bluetooth play method and digital signal processor thereof

Examples

Experimental program
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Embodiment Construction

[0092] According to the analysis of the background technology section, it can be seen that in the prior art, in the process of audio playback through Bluetooth transmission, the Bluetooth transmission of audio data packets needs to be processed through the HCI transport layer, HCI, L2CAP, AVDTP and A2DP layers in the application processor. , and finally sent to the peer listening device by the Bluetooth chip wirelessly.

[0093] Since the audio data packets are continuously generated during the whole playing process, and need to be processed by the above-mentioned layers in the application processor constantly. Therefore, the application processor cannot go to sleep during the entire playback.

[0094] In practical applications, users rarely perform other operations while listening to audio. Specifically, for example, when a user listens to MP3 music, he often closes his eyes and rests his mind. In this case, the terminal usually does not need to undertake other tasks while ...

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PUM

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Abstract

The invention provides a user terminal, an audio Bluetooth play method and a digital signal processor thereof. The method comprises following steps: the digital signal processor receives a basic packing data template from an application processor in advance; the digital signal processor performs data packaging on an audio data package of the SBC format based on the basic packing data template to obtain a packaged audio data package; the digital signal processor performs segmentation and package on the packaged audio data package to obtain a data package to be sent and requests to send; the digital signal processor sends the data package which requests sending and is to be sent to a Bluetooth chip through a PCM interface between the digital signal processor and the Bluetooth chip. According to the invention, during the audio playing process through Bluetooth transmission, the application processor is substituted by the digital signal processor to carry out processing required by audio data package Bluetooth transmission; data is sent to the Bluetooth chip by reusing the PCM interface between the digital signal processor and the Bluetooth chip, which is helpful for saving power consumption.

Description

technical field [0001] The invention relates to the technical field of wireless communication, in particular to a user terminal, an audio bluetooth playback method thereof, and a digital signal processor. Background technique [0002] Explanation of related terms: [0003] BT——Bluetooth——Bluetooth; [0004] BTController - Bluetooth chip; [0005] BTHost——Bluetooth upper layer module, which cooperates with the Bluetooth chip to realize the Bluetooth function; [0006] HCI——HostControllerInterface——host controller interface, a standard software interface between the Bluetooth upper layer module and the Bluetooth chip; [0007] HCITRANS——HCITransportlayer——HCI transport layer, including data format, retransmission, error handling and other related agreements when the Bluetooth upper layer module communicates with the Bluetooth chip; [0008] AP——ApplicationProcessor——application processor; [0009] DSP - DigitalSignalProcessor - digital signal processor; [0010] SBC——Low...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B5/02G11B20/10H04W4/80
CPCG10L19/0208G06F3/165H04W4/80Y02D30/70G06F3/162
Inventor 顾祥新刘守华张治
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