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User terminal, audio bluetooth playback method, digital signal processor

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. consumption effect

Active Publication Date: 2019-02-01
SPREADTRUM COMM (SHANGHAI) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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 playback method, digital signal processor
  • User terminal, audio bluetooth playback method, digital signal processor
  • User terminal, audio bluetooth playback method, digital signal processor

Examples

Experimental program
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Effect test

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

A user terminal and its audio bluetooth playback method, and a digital signal processor, the method comprising: the digital signal processor receives the basic packaged data template from the application processor in advance; The packet is packaged to obtain a packaged audio data package; the digital signal processor divides and packages the packaged audio data package to obtain a data package to be sent and requests to be sent; the digital signal processor passes between the digital signal processor and the bluetooth chip The PCM interface of the request sends the data packet to be sent to the Bluetooth chip. In the process of audio playback through Bluetooth transmission, the present invention uses a digital signal processor instead of an application processor to carry out the processing required for audio data packet Bluetooth transmission, and through the multiplexing of the PCM interface between the digital signal processor and the Bluetooth chip It is helpful to save power consumption by sending data to the Bluetooth chip.

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] BT Controller——Bluetooth chip; [0005] BT Host——Bluetooth upper layer module, which cooperates with the Bluetooth chip to realize the Bluetooth function; [0006] HCI——Host Controller Interface——host controller interface, a standard software interface between the Bluetooth upper layer module and the Bluetooth chip; [0007] HCI TRANS——HCI Transport layer——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——Application Processor——application processor; [0009] DSP - Digital Signal Processor - digital signal processor; [0010]...

Claims

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Application Information

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