Channel browsing display method, device and receiver for digital television

A browsing display and digital TV technology, applied in the field of devices and receivers, digital TV channel browsing and display methods, can solve the problems of no signal status of encrypted channels, failure to display encrypted channel program information, high cost of CAM cards and smart cards, etc. Achieve the effect of dispelling the doubts of encrypted channels

Active Publication Date: 2011-09-28
LG ELECTRONICS (CHINA) R&D CENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, CAM cards and smart cards are expensive to purchase, and many encrypted channels are dispensable for most users
[0006] In implementing the present invention, the inventor finds that the prior art has the following problems: for encrypted channels of digital television, if the user does not purchase a CAM card or a smart card, no matter whether it is the above-mentioned list channel browsing mode or the multi-window channel browsing mode, it cannot Displays any program information for encrypted channels, such as image 3 Shown, the encrypted channel will be displayed as no signal status

Method used

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  • Channel browsing display method, device and receiver for digital television
  • Channel browsing display method, device and receiver for digital television
  • Channel browsing display method, device and receiver for digital television

Examples

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Embodiment 1

[0023] Figure 4 It is a method flowchart of an embodiment of the method for browsing and displaying digital TV channels of the present invention. As shown in the figure, the digital TV channel browsing display method includes:

[0024] Step S101, acquiring a TV program transport stream. The program transport stream (Transport Stream, TS) is obtained by analyzing the radio frequency signal (RF signal) sent by the TV station through the channel tuning module. The tuning module includes a multi-mode tuner and demodulator, so it can receive and analyze four transmission streams: terrestrial digital, terrestrial analog, cable digital and cable analog. Among them, the high-frequency head receives the high-frequency signal from the cable network, completes channel decoding through the demodulator, and separates the transmission stream containing audio, video and other data information from the carrier. The transport stream generally contains multiple audio, video streams and serv...

Embodiment 2

[0030] Figure 5 It is a method flowchart of another embodiment of the method for browsing and displaying digital TV channels of the present invention. As shown in the figure, the digital TV channel browsing display method of this embodiment includes:

[0031] Step S201, in a multi-mode (terrestrial, cable, satellite, etc.) digital TV receiver, the channel tuning module receives radio frequency signals from TV stations or radio stations, and parses them into program transport streams. Among them, the tuner module includes a multi-mode tuner and a demodulator, which can receive and analyze four transmission streams: terrestrial digital, terrestrial analog, wired digital and wired analog. Among them, the high-frequency head receives the high-frequency signal from the cable network, completes channel decoding through the demodulator, and separates the transmission stream containing audio, video and other data information from the carrier.

[0032] Step S202, acquiring the progr...

Embodiment 3

[0040] Figure 6 It is a structural schematic diagram of an embodiment of the digital TV channel browsing display device of the present invention. As shown in the figure, the digital TV channel browsing display device of this embodiment includes:

[0041] The transport stream receiving unit 101 is configured to receive a TV program transport stream. The program transport stream is obtained by analyzing the radio frequency signal sent by the TV station or radio station through the channel tuning module. The tuning module includes a multi-mode tuner and a demodulator, which can receive and analyze four transmission streams: terrestrial digital, terrestrial analog, cable digital and cable analog. Among them, the high-frequency head receives the high-frequency signal from the cable network, completes channel decoding through the demodulator, and separates the transmission stream containing audio, video and other data information from the carrier. The transport stream generally ...

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PUM

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Abstract

The invention discloses a channel browsing display method for a digital television. The method comprises the following steps of: receiving a television program transport stream; acquiring the encrypted information of a program signal from the television program transport stream; judging whether the program signal is encrypted or not according to the encrypted information; if the program signal is judged not to be encrypted, performing audio and video decoding on the program signal, outputting generated audio and video information and transmitting the audio and video information on a corresponding program browsing window of a display terminal; and if the program signal is judged to be encrypted, acquiring service information from the program signal, outputting the service information and displaying the service information on the corresponding program browsing window of the display terminal. The embodiment of the invention also provides the channel browsing display device for the digital television and a digital television receiver. By the method, the device and the receiver, a digital television user still can know program contents played by an encrypted channel under the condition of not buying a conditional access module (CAM) card and a smart card, so the doubts of the user about the encrypted channel are erased.

Description

technical field [0001] The invention relates to the field of digital television, in particular to a digital television channel browsing display method, device and receiver. Background technique [0002] In the existing digital TV system, there are usually dozens or even hundreds of program channels, and it is inconvenient for users to browse and switch programs. [0003] An existing channel browsing display method only lists channel numbers and channel names in the form of a directory. Such as figure 1 As shown, only the name and station number of the program are displayed, and other more information cannot be obtained. [0004] Another existing channel browsing display mode is: display the current video images of a plurality of channels simultaneously on the TV screen, such as figure 2 shown. This channel browsing display method can generate a program window for each program channel, so that the program windows of the program channel can be displayed in multiple pages....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N21/4385H04N21/435
Inventor 赵容浩王雅卓于萍
Owner LG ELECTRONICS (CHINA) R&D CENT CO LTD
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