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Digital broadcasting television service switching mechanism and switching method

A technology of digital broadcasting TV and switching device, which is applied in the direction of TV, color TV, color TV parts, etc. It can solve the problems that it is difficult to master the operation and control method of digital TV, it cannot be applied well, and it cannot be well adapted. , to achieve fast and convenient browsing, high browsing efficiency, and simple settings

Inactive Publication Date: 2008-02-06
SHENZHEN TCL NEW-TECH CO LTD
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AI Technical Summary

Problems solved by technology

However, these methods cannot be applied well, and instead bring corresponding troubles to users, and even some people are difficult to master the operation and control methods of digital TV.
[0004] In addition, the interface of the existing digital TV receiving device is quite different from the traditional TV, and the operation method is also quite different. Many people cannot adapt well. It is necessary to improve the interface of the existing digital TV to make it operate more humane

Method used

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  • Digital broadcasting television service switching mechanism and switching method
  • Digital broadcasting television service switching mechanism and switching method
  • Digital broadcasting television service switching mechanism and switching method

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Embodiment Construction

[0034] First, briefly describe the general scheme of the present invention according to FIG. 1 , which is given by taking a digital TV set-top box as an example. The cable TV signal from the network is frequency-selected by tuner, modulated and demodulated by QAM, and processed by ATM to output the video stream, which is decoded by the MPEG-2 video decoder, and then sent to the PAL / NTSC / SECAM encoder to obtain the corresponding format video signal. In this process, graphic signals such as menus generated by the graphic generator can be superimposed. Audio stream is converted into analog audio signal by audio D / A after decoding by MPEG-2. The data stream is transmitted to the CPU, and the CPU performs corresponding processing. For example, the CPU controls the graphic generator to generate menu graphics according to the menu graphic data in the data stream. The CPU also generates corresponding message data according to the user's choice, and after QPSK or QAM modulation, feed...

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Abstract

The present invention is a switching device and corresponding switching method of the digital broadcast television service. The device is provided with a location unit and a first switch cell, the location stores switching cycle information of different types of services, so as that the switch between different types of services can be realized; the method includes a commanding step, a choosing step and a switching step. A command is first inputted and the right service information is chosen according to the command, and then a switching is conducted. After employing the aforesaid technical protocol, the different types of services in the digital television can be switched quickly so that the browsing speed of the television programs is convenient, making the users convenient in use.

Description

technical field [0001] The invention relates to a program switching device and method for digital broadcast television. In particular, the device and method for fast switching of various broadcast information are convenient for users to quickly find the service items or channels they need. Background technique [0002] In digital broadcasting and television, there are generally network information services, TV program services, radio program services, video-on-demand or quasi-video-on-demand services. With the development of technology, digital TV will provide more and more services, such as online banking service, real-time information service, and so on. Generally speaking, these services are generally divided into three categories, video services, audio services, and data services. Although the switching methods provided at present can realize the selection and switching of these services, the general feeling is that these services are separated, and the user must first...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04H1/00H04N5/44
Inventor 宁尚国
Owner SHENZHEN TCL NEW-TECH CO LTD
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