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Driver interface for cmmb terminals

A technology for driving interfaces and multiplexing frames, applied in the CMMB field, can solve problems such as repetitiveness and complexity of work tools, achieve rapid and flexible integration, and lower the threshold for terminal adaptation

Active Publication Date: 2016-08-17
CHINA BROADCAST CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] However, in the past, the launch of new services required integration with various terminal platforms one by one, and the work was extremely repetitive and complicated

Method used

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  • Driver interface for cmmb terminals
  • Driver interface for cmmb terminals
  • Driver interface for cmmb terminals

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Embodiment Construction

[0027] The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0028] First introduce the mobile multimedia broadcasting CMMB system, the CMMB system is an open general platform for terminals, figure 1 It is a structural diagram of the mobile multimedia broadcasting system related to the embodiment of the present invention. Such as figure 1 As shown, the mobile multimedia broadcasting system 100 includes: a general layer 102 and an application layer 104 . The hardware adopts mobile multimedia broadcast demodulation chips and various CA cards. The hardware is located at the bottom layer and is responsible for converting the received radio frequency signal into a processable digital signal (that is, descrambling and multiplexing...

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Abstract

In order to realize the standardization of the interface between the CMMB system hardware layer and the general layer, the present invention proposes a driver interface for the CMMB terminal, which is arranged between the hardware layer and the general layer of the CMMB system, and is used to obtain descrambling from the hardware layer Multiplexing the frame and providing the descrambling and multiplexing frame to the general layer, including: an initialization module, which is used to power on and initialize the CMMB demodulation chip in the hardware layer; a version acquisition module, which is used to obtain the version number of the CMMB system ; The frequency setting module is used to set the frequency corresponding to the descrambling multiplexing frame; the channel selection module responds to the instruction from the hardware layer to select the channel to be watched; and the multiplexing frame acquisition module is used to obtain the descrambling multiplexing frame.

Description

technical field [0001] The present invention relates to the field of CMMB (China Mobile Multimedia Broadcasting, China Mobile Digital Multimedia Broadcasting), more specifically, relates to a driver interface for CMMB terminals. Background technique [0002] With the public's growing demand for mobile TV services, CMMB technology has penetrated into many areas of people's lives. The development and application of various CMMB services are based on dozens of terminal platforms such as various MP4, mobile phones, and GPS. The research and development in various directions related to CMMB is also becoming more and more detailed. The following briefly introduces several research and development directions related to CMMB at present. [0003] The invention patent (Application No. 200710176417.3) filed on October 26, 2007 by the Academy of Broadcasting Science of the State Administration of Radio, Film and Television, entitled "A Method and System for Realizing IP Packet Multipl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N21/434H04N21/254
Inventor 孙朝晖余英周红君蒲珂李哲山赵丽娜王力鞠树柏同瑛赵琳莉路宏伟方宏张培李艳铭刘芳凝朱剑锋
Owner CHINA BROADCAST CORP
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