Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

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
View PDF7 Cites 0 Cited by
  • 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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • 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
Comparison scheme
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 ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H04B5/02G11B20/10H04B5/48H04W4/80
CPCG10L19/0208G06F3/165H04W4/80Y02D30/70G06F3/162
Inventor 顾祥新刘守华张治
Owner SPREADTRUM COMM (SHANGHAI) CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com