Audio playing apparatus and method, and digital television chip

A technology for audio playback and audio data, which is applied to TVs, color TVs, and components of color TVs. , The effect of reducing audio switching time and occupying less resources

Inactive Publication Date: 2009-04-08
INNOFIDEI TECHNOLOGIES INC
View PDF0 Cites 20 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its advantage is that it is very convenient for users to use, but its disadvantages are also obvious. For example, due to the need for more software, hardware and driver support, the system is relatively large and complex, and it takes up more resources. It cannot be integrated in some embedded systems with weaker functions. in the operating system
For example, the operating system on the mobile multimedia broadcasting terminal chip, this type of operating syste

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
  • Audio playing apparatus and method, and digital television chip
  • Audio playing apparatus and method, and digital television chip
  • Audio playing apparatus and method, and digital television chip

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0068] In order to make the above objects, features and advantages of the present invention more clearly understood, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0069] One of the core concepts of the embodiments of the present invention is that, during the audio playback process, the available and unavailable states of the playback pointer are adjusted by comparing the audio data address pointer and the playback pointer, so as to control the audio data according to the state of the audio playback pointer. 's playback. The implementation method of the present invention is simple, the implementation code is short, and there is no need to increase software and hardware equipment and driver support, and it occupies less resources, and can be easily integrated in the operating system with weak functions and limited resources of the mobile terminal chip; When the terminal switches channels, i...

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

The invention provides an audio playing method for a mobile multimedia broadcasting system. The audio playing method comprises the following steps: decoded audio data is obtained; an audio data address pointer is pointed to a current cache address of the decoded audio data; the audio data address pointer is compared with a playing pointer in the audio playing process, and the audio data is played or stopped playing according to the comparison result. The method aims at the disadvantages of weaker function and limited resources of an operating system on a mobile multimedia broadcasting terminal chip to control the playing of the audio data by comparing the audio data address pointer with the playing pointer; therefore, the invention has simple realization method, short realization code, no addition of hardware and software equipment and drive support and less occupied resources, and the audio data can be conveniently integrated into the mobile terminal chip. The method further realizes quick audio switching by resetting the state and directions of the playing pointer when a channel switching is carried out on the mobile terminal.

Description

technical field [0001] The invention relates to the technical field of mobile multimedia broadcasting, in particular to an audio playing device and method for a mobile multimedia broadcasting system, and a digital TV chip for receiving mobile multimedia broadcasting. Background technique [0002] Mobile multimedia broadcasting is an emerging multimedia playback technology. In recent years, this technology and standards have developed rapidly, such as digital video broadcast handheld reception (DVB-H, Digital Video Broadcast Handheld) in Europe, and media single forward link in the United States. (MediaFLO, Media ForwardLink Only) and China's mobile multimedia broadcasting system (CMMB, China Mobile MultimediaBroadcast), etc., provide its end users with many service contents, such as advertisements, weather forecasts, news, sports programs, variety shows, multimedia radio dramas, movies, etc. Programs, users can choose different services according to their hobbies. [0003] ...

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
IPC IPC(8): H04N5/60
Inventor 张辉王西强吕悦川张岩曹晋宇胡伟王洪仁
Owner INNOFIDEI TECHNOLOGIES INC
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap