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Digital TV set channel control device and method when external device video recording

An external device and video recording technology, applied to color TV parts, TV system parts, TVs, etc., can solve problems such as video channel changes, achieve the effect of preventing video recording errors and improving system efficiency

Inactive Publication Date: 2008-05-28
NANJING LG TONGCHUANG COLOR DISPLAYS SYST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when using a VCR to record DTV streams, since there is only one set of digital tuners, there is a problem that the recording channel is changed when the user changes the DTV channel

Method used

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  • Digital TV set channel control device and method when external device video recording
  • Digital TV set channel control device and method when external device video recording
  • Digital TV set channel control device and method when external device video recording

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Embodiment Construction

[0022] With reference to accompanying drawing, illustrate the DTV channel control device and method when utilizing external equipment video recording of the present invention as follows:

[0023] figure 2 It is a block diagram of the DTV channel control device when using external equipment to record video according to the present invention. It relates to a digital television having one tuner for DTV, and only a DTV-related signal processing block ( 20 ) is shown (hereinafter referred to as a DTV system).

[0024] Such as figure 2 As shown, the TV channel control device of the present invention includes the following components: a tuner 24 that accepts digital broadcast signals; a signal processing unit 23 that processes the digital broadcast signals accepted by the above-mentioned tuner 24 into an output signal form; the user inputs the VCR During the video recording command, output the broadcast signal video recording through the above-mentioned signal processing unit to ...

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PUM

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Abstract

This invention relates to a digital television channel control device and method using external device, which includes the following steps: sending DTV broadcast signal wanted by users to the external device, operating external device kinescoping; and when the external device receives videotape state intelligence, designing or relieving DTV channel locking function according to the intelligence.

Description

technical field [0001] The invention relates to a digital television, in particular to a channel control device and method for a digital television when using external equipment to record video. Background technique [0002] Recently, according to the future digital broadcasting plan, in order to provide users with better services by providing digital broadcasting with better picture quality than traditional analog broadcasting and sound quality close to CD, the digital TV and digital TV set-top boxes that receive digital broadcasting, etc. The development is very active, and most digital TVs now have 2 sets of analog tuners and 1 set of digital tuners built in. [0003] Regarding the DTV signal processing block of the above-mentioned digital TV and its operation, the detailed description is as follows: [0004] Such as figure 1 As shown, the DTV signal processing block includes the following components: a signal input unit 1 for receiving digital broadcast signal input th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/50H04N5/44H04N21/45
Inventor 金载翰李汉俊
Owner NANJING LG TONGCHUANG COLOR DISPLAYS SYST CO LTD