Realization method and front-end service system of instant interactive digital TV

Abstract

The invention discloses a realization method and a front-end service system of an instant interactive digital TV. The method is characterized in that a group of set-top box terminals is connected with the front-end service system of the instant interactive digital TV via a cable TV network and a communication network; the set-top box terminals send out interactive service requests to the front-end service system; the front-end service system operates the interactive service programs and maintains real-time interaction, simultaneously obtains the images and sounds of the interactive service programs and distributes the images and sounds to the set-top box terminals via the cable TV network. The system comprises a central processing unit, a high-speed storage unit, a storage unit, a networkinterface unit, a parallel processing unit and a source play unit. The invention has the following advantages: the invention is irrelevant to the set-top box terminal platform, can realize light weight of the set-top box terminals, is favorable to copyright protection and management and has strong ability in concurrent user access, low overall cost and wide application range.

Description

technical field [0001] The invention relates to the field of digital television, in particular to a method for realizing an instant interactive digital television and a front-end service system thereof. Background technique [0002] With the gradual development of digital TV translation, digital TV terminal equipment represented by set-top boxes has entered the majority of households. In the post-translation era, how to carry out interactive value-added services on existing digital TV platforms has become the focus of the industry. In order to realize the interaction between the digital TV front-end and the terminal, it is necessary to provide the set-top box with an information return channel. Although there are differences in the use of specific technologies such as Ethernet, Epon+Eoc, and CableModern for the return channel, the industry has a clear understanding of the cable digital TV network. A two-way transformation has reached a consensus. [0003] In the current dig...

AI Technical Summary

Problems solved by technology

[0003] In the current digital TV system, the set-top box is a hardware device that converts digital signals into analog signals and outputs them on the TV. On the one hand, as a typical embedded system, the set-top box terminal has very limited computing and storage resources and cannot support Large-scale or complex applications with high computational load; on the other hand, the update of set-top box chips and the competition among many solution providers make digital TV terminals not only have large differences in hardware processing capabilities but also different operating systems. The local parsing and execution of the application is the root cause of the application's dependence on the hardware platform and system

Therefore, it is bound to be very difficult for operators to use set-top boxes as a comprehensive platform to promote unified value-added applications. Even if the middleware technology developed to achieve platform independence can alleviate the above problems to some extent, the implementation of middleware technology is complicated and difficult. Difficulties in implementation and system overhead brought by resource-constrained set-top boxes seriously restrict the development of digital TV value-added services

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