Method for switching mobile multimedia broadcasting services and corresponding receiving device

A technology for mobile multimedia and broadcasting services, which is applied in the field of mobile multimedia broadcasting service switching and corresponding receiving devices, and can solve the problems of unstable and degraded signal quality.

Inactive Publication Date: 2010-10-27
TECHTOTOP MICROELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Assuming that the user uses a CMMB receiving device and is currently watching the CCTV-1 news broadcast program provided by the secondary network 2A in the area covered by the secondary network 2A, when the user moves from the area 2A to the area covered by 2B, three situations will occur : First, the signal quality is unstable, and it may become unacceptably poor in the middle, and the network or frequency point needs to be replaced. , such as the CCTV-1 watched before, but according to the previous setting, it has now become CCTV-5, and you need to re-select the program, or change the network or frequency point and re-select the program; the third is to enter the blind spot and cannot receive the signal , the system can prompt the user and go to some content provided inside the receiving device

Method used

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  • Method for switching mobile multimedia broadcasting services and corresponding receiving device
  • Method for switching mobile multimedia broadcasting services and corresponding receiving device
  • Method for switching mobile multimedia broadcasting services and corresponding receiving device

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Embodiment Construction

[0036] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0037] image 3 It is a hardware block diagram of the CMMB receiving device of the present invention. The signal is received by the antenna 1 and enters the CMMB signal receiving unit 2. After the tuner demodulator 21, the baseband signal is obtained, and after passing through the transmission demultiplexing unit 22, the multiplexed data of a certain program is obtained. The multiplexed data of the program The data includes video, audio and data, and after the program demultiplexing unit 23, the separated video, audio and data of the set of programs are obtained, and the decoding unit 24 decodes t...

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Abstract

The invention relates to a method for switching mobile multimedia broadcasting services and a corresponding receiving device. The method comprises the following steps of: selecting, namely selecting and receiving one mobile multimedia broadcasting service; judging, namely judging whether the quality of a signal bearing the service is low than a set threshold or the service still exists in the signal; searching, namely if the signal quality is low than the set threshold or the service does not exist in the signal, searching the services by the receiving device; and reselecting, selecting the service from the searched services and receiving the service. By adopting the method, the receiving device can switch the services according to a broadcast signal or a geographical position and dynamically keeps the watching of a specific service unaffected.

Description

technical field [0001] The invention relates to a mobile multimedia broadcast service switching method and a corresponding receiving device, in particular to a broadcast receiving device related to China Mobile Multimedia Broadcasting (CMMB). Background technique [0002] In recent years, digital mobile multimedia broadcasting technology and standards have developed rapidly. In Europe and the United States, various digital mobile multimedia broadcasting networks developed based on different technologies and standards have emerged, such as DVB-H (Digital Video Broadcasting Handheld Receiver) in Europe. : Digital Video Broadcast Handheld), MediaFLO in the United States (Media Forward Link Only), mobile cellular-based BCMCS (Broadcast and Multicast Services: Broadcast and Multicast Services) and BCAST (Broadcast: Broadcast), etc., and It can provide many service contents to users of its receiving devices, such as advertisements, weather forecasts, news, sports programs, variety...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W4/06H04W36/30H04N5/50
Inventor 袁明
Owner TECHTOTOP MICROELECTRONICS
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