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Device for converting the digital TV signals into the analog TV signals

A technology for digital TV signals and analog TVs, applied in simultaneous/sequential multi-TV signal transmission, components of color TVs, components of TV systems, etc., can solve problems such as abnormal work, poor feeling, slow channel switching speed, etc.

Inactive Publication Date: 2007-07-11
李博航
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 2. The original simple and easy-to-use remote control is replaced by the complex remote control attached to the set-top box, which is too complicated for most people who often watch TV
[0005] 3. Because the TV set-top boxes are realized by a large number of software technologies to reduce costs and increase flexibility, but at the same time, due to imperfect software, the TV set-top boxes often crash or work abnormally, which is unacceptable to TV viewers
[0006] 4. The channel switching speed is too slow, and the feeling of using it is poor
[0007] 5. It is necessary to use the original remote control to switch the power of the analog TV receiving device and switch to A / V input, and then use the remote control attached to the set-top box to set and select channels. The operation of the two remote controls is very cumbersome
This situation is making the migration of analog TV to digital TV difficult

Method used

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  • Device for converting the digital TV signals into the analog TV signals
  • Device for converting the digital TV signals into the analog TV signals

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Embodiment Construction

[0033] The technical solution of the present invention will be further described in detail below in conjunction with the accompanying drawings and implementation examples:

[0034] In a specific implementation example, in order to make the device for converting digital TV signals into analog TV signals of the present invention work stably for a long time, all processing circuits are mainly implemented by hardware chip circuits, reducing the implementation of software in the device. Fig. 1 is a logical schematic diagram of converting a complete digital television transmission signal into a complete analog television transmission signal by the device for converting digital television signals into analog television signals according to the present invention. As shown in Figure 1, its input signal is a digital TV transmission signal, which is converted into an analog TV transmission signal by the information processing part [101] of the conversion device. In the figure, the input ...

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Abstract

This invention provides one device to convert digital television signal to analogue television signals, which processes the received digital television channel signals through satellite antenna or wire television transmission circuit or earth broadcast wireless digital television channel signals into analogue television signals, wherein, it then re-aligns the signal channel to modulate and convert analogue signals into original cable television system sent high frequency analogue television channel signals.

Description

technical field [0001] The present invention proposes a device for converting digital TV signals into analog TV signals, converting digital TV channel signals received through satellite antennas or digital TV channel signals received through cable TV transmission lines or terrestrial broadcast signals received through TV antennas The wireless digital TV channel signal is converted into an analog TV signal through signal processing, and then redistributed through the channel. The analog TV signal is modulated and up-converted into a high-frequency analog TV channel signal (UHF frequency band and VHF frequency band) originally transmitted through the cable TV system. , to realize that the original analog TV receiver can receive programs of digital TV signals. After such conversion, the original TV viewer does not need to change the original operation mode and channel switching mode, and can watch the programs of the digital TV channel by using the original remote controller and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/44H04N5/46H04N5/00H04N7/10H04N7/20H04N7/08
Inventor 李博航
Owner 李博航
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