A dual mode mobile receiving device and its receiving method

Abstract

The mobile receiving device (MRD) in dual mode includes following parts: wireless digital broadcast reception process module (WDBRPM) receives wireless digital broadcast signal from digit broadcast signal source, and carries out transmittal de-multiplexing process for the signal, picks up media stream signal, and outputs the processed signal to selector; IP stream media reception process module (SMRPM) receives and sends data stream signal based on IP from / to IP network, processes the signal according to stream media transport protocols and picks up signal of media stream, and outputs the processed signal in format of media stream to a selector; the selector receives signals of media stream from WDBRPM and IP SMRPM, and selects one route of signal of media stream. The invention also discloses method for implementing reception by MRD in dual mode. Using time symbol and frame sequence number in switching time, the method maintains continuity of frame to realize seamless switching.

Description

technical field [0001] The invention relates to mobile multimedia technology, in particular to a dual-mode mobile receiving device and a method for realizing reception on the device. Background technique [0002] With the development of digital media content, the original analog radio and TV programs have begun to use digital broadcasting. Mobile TV equipment is a device that uses a portable small handheld terminal to watch audio and video programs including TV. Mobile TV equipment allows people to watch their favorite programs without being limited by space. Mobile TV services have become a backup. A new business model attracting attention. At present, the realization technologies of mobile TV mainly include mobile TV technology of digital broadcasting mode and mobile TV technology of streaming media mode based on broadband IP network. [0003] Now there are more than a dozen mobile TV technologies related to digital broadcasting, which can be summarized into three types:...

AI Technical Summary

Problems solved by technology

When the mobile TV receiving device enters the room from the outside, the signal will be interrupted, weakened or the bit error rate is high. Give users a poor viewing experience

[0010]Now most buildings have broadband IP network access capabilities indoors, and mobile TV receiving equipment can access broadband IP networks through WLAN access points (APs). Therefore, multimedia broadcasting signals can be received through the broadband IP network, but because the broadband IP network can only cover the indoor range, it cannot meet the large-scale outdoor use of TV receiving equipment based on broadband IP network streaming technology

[0011] It can be seen that neither mobile digital broadcasting nor broadband IP network can guarantee good quality signal coverage both indoors and outdoors, and the existing mobile TV receiving equipment can only use one receiving method when it is indoors and outdoors, so it cannot meet the requirements of receiving good signals in both outdoor and indoor environments at the same time

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