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Digital TV-set with multiple tuning devices set and frequency-channel setting method thereof

A digital TV and tuner technology, applied in the field of image display equipment and channel setting, can solve the problem of insufficient efficiency of channel scanning and search, and achieve the effect of improving use efficiency and speeding up the search process.

Inactive Publication Date: 2009-02-11
LG ELECTRONICS (CHINA) R&D CENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The Chinese patent application whose application number is 200410057880 does not repeatedly scan and search the stored channels, which reduces the time spent scanning channels to a certain extent and improves scanning efficiency, but its scanning of channels is still serial, so Its channel scanning search is still not efficient enough

Method used

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  • Digital TV-set with multiple tuning devices set and frequency-channel setting method thereof
  • Digital TV-set with multiple tuning devices set and frequency-channel setting method thereof
  • Digital TV-set with multiple tuning devices set and frequency-channel setting method thereof

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Embodiment Construction

[0025] As shown in Figure 2, the digital television of one embodiment of the present invention includes: an analog signal processor 100, which is used to receive an analog broadcast signal from a first signal source and convert the analog broadcast signal through an analog tuner 101, filter 102, and decoder 103. The analog broadcast signal is processed into a displayable signal; the digital signal processor 200 is used to receive the digital broadcast signal from the second signal source and pass the digital broadcast signal through the digital tuner 201, the multiplexer DEMUX 202, and the decoder 203. The digital broadcast signal is processed into a displayable signal; the digital signal processor 300 is used to receive the digital broadcast signal from the third signal source and pass the digital broadcast signal through the digital tuners 301, 304, and the multiplexers DEMUX 302, 305 , the decoder 303 processes the digital broadcast signal into a displayable signal, wherein ...

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Abstract

The method comprises: users send a channel searching instruction, and the system responds the searching instruction. The TV channel searching procedure includes: simultaneously starting multi tuner to search TV channels; any one of said tuners can jump the locked channel and continues to search the remaining channels. The invention can speed the TV channel searching.

Description

technical field [0001] The invention relates to an image display device and a channel setting method thereof, in particular to a digital television provided with multiple tuners and a channel setting method thereof. Background technique [0002] With the development of digital TV technology, it is currently in the stage of transition from analog signal to digital signal. Many digital TVs have digital tuners (Tuner) and analog tuners (Tuner). It has multiple digital tuners (Tuner) due to the medium picture function. However, in the channel search, the method of independently searching the entire frequency band by each tuner is continued, and the efficiency is not high. [0003] figure 1 A flowchart showing a prior art conventional method of digital TV channel searching with a digital tuner and an analog tuner. exist figure 1 In, the system responds to the search command and starts to search (step 1001); then, use the analog tuner to search for all frequency bands (step 10...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/50
Inventor 桂伟力
Owner LG ELECTRONICS (CHINA) R&D CENT CO LTD