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Object carousel data downloading method and system based on DSM-CC (digital storage media command and control) protocol

A DSM-CC, data download technology, applied in the direction of image communication, selective content distribution, electrical components, etc., can solve the problems of wasting storage space and resources of digital TV equipment, wasting time, etc., to achieve a good experience, rapid and timely feedback, The effect of saving storage space and system resources

Inactive Publication Date: 2017-05-17
SHENZHEN JIUZHOU ELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of this, it is necessary to download all DSM-CC data when downloading DSM-CC data in the DSM-CC protocol data carousel, which greatly wastes the storage space and resources of digital TV equipment, and wastes time. - Object carousel data download method and system of CC protocol

Method used

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  • Object carousel data downloading method and system based on DSM-CC (digital storage media command and control) protocol
  • Object carousel data downloading method and system based on DSM-CC (digital storage media command and control) protocol

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Embodiment Construction

[0027] 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.

[0028] figure 1 It is a flow chart of an object carousel data downloading method based on the DSM-CC protocol in an embodiment, such as figure 1 As shown, the method includes the following steps:

[0029] S10: Allocate a cache space in the memory of the digital TV device.

[0030] Digital TV devices usually have a certain amount of memory, but the memory is often limited. In order to enable data to be quickly acquired and occupy less memory space, in this embodiment, a buffer space of a set size is first allocated in the digital TV device memory to store data. cache.

[0031] S20: When the digi...

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PUM

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Abstract

The invention relates to an object carousel data downloading method and system based on DSM-CC (digital storage media command and control) protocol; a buffering space is pre-allocated in a memory of a digital television set, OC (object carrousel) data of DSM-CC data are cyclically downloaded continuously from a broadcast data stream when the digital television set operates, each single OC data is removed after being downloaded and maintained for a set time, next OC data is continuously downloaded, single OC data is cached constantly in the buffering space, whether the corresponding OC data is present in the cache space or not is detected first when a user requests for data, the data is called directly from the cache space if yes, only the corresponding OC data is downloaded from a server according to the correspondence if not, the required OC data is required only, downloading all DSM-CC data is not required, the storage space and system resource of the digital television set are greatly saved, user-required data can be fed back to a user quickly and timely, user's time is saved, and good user experience is provided.

Description

technical field [0001] The invention relates to the field of digital television, in particular to a method and system for downloading object carousel data based on the DSM-CC protocol. Background technique [0002] DSM-CC (Digital Storage Media Command and Control, Digital Storage Media Command and Control Extension Protocol) protocol is an important part of the DVB standard (Digital Video Broadcasting). With the promotion of digital TV services, data broadcasting services based on the DSM-CC protocol are becoming more and more popular. Come for more features and resources. [0003] DSM-CC data carousel (DC-Data carouse) is a data broadcast service that supports the periodic transmission of data modules from the server to the client. The data modules are repeatedly broadcast in the broadcast data stream. If the client wants To receive a specific or designated data module (webpage, text, picture, audio and video data, etc.) in the data carousel, it only needs to be received...

Claims

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Application Information

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IPC IPC(8): H04N21/433H04N21/4335H04N21/432H04N21/6433H04N21/858
CPCH04N21/432H04N21/4334H04N21/4335H04N21/6433H04N21/8586
Inventor 池骏
Owner SHENZHEN JIUZHOU ELECTRIC