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Image playing device, system and method

A video playback and video signal technology, which is applied to TV system components, image communication, cathode ray tube indicators, etc., can solve the problems of high cost and large volume, and achieve the effect of reducing volume and quantity

Inactive Publication Date: 2009-07-08
PRINCETON TECH CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Also therefore, the cost of existing image playing device is higher, and volume is also bigger

Method used

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  • Image playing device, system and method
  • Image playing device, system and method
  • Image playing device, system and method

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Embodiment Construction

[0031] In order to make the above-mentioned and other objects, features and advantages of the present invention more comprehensible, the preferred embodiments are specially cited below, together with the accompanying drawings, and are described in detail as follows:

[0032] figure 2 A schematic diagram showing the video playback system of the present invention. As shown in the figure, the video playback system includes a display device 20 and a video playback device 21 . The display device 20 is used to receive an image signal S provided by an image playback device 21 (such as a DVD playback device). IMA , and present image signal S IMA corresponding image screen.

[0033] The display device 20 can be a TV or a computer screen. When the display device 20 is a TV set, the video signal S from the video playback device 21 can be received through the component terminal, the S terminal or the AV terminal. IMA . When the display device 20 is a computer screen, it needs to re...

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Abstract

The present invention provides an image playback device, system and method. The image playback device is used to provide an image signal to a display device. The image playback device includes a selection unit, a frequency generation unit, an adjustment unit and a processing unit. The selection unit outputs the first signal with progressive scanning format or the second signal with interlaced scanning format according to the state of the selection signal. The frequency generating unit outputs the first or second frequency according to the state of the selection signal. The adjusting unit performs first stage processing on the signal output by the selection unit according to the frequency output by the frequency generating unit to generate a processed signal. The processing unit performs second-stage processing on the processed signal to generate an image signal. The invention can reduce the number of components and effectively reduce the volume of the playback device.

Description

technical field [0001] The present invention relates to an image playing device, in particular to an image playing device which plays images in a progressive scan mode or an interlaced scan mode. Background technique [0002] The methods for displaying images by a general display device (such as a television or a computer screen) can be divided into progressive scan display and interlaced scan display. The interlaced scanning display method has been developed for a long time, and most of the TVs currently on the market use the interlaced scanning display method to play images. However, in recent years, more and more display devices are displayed in progressive scan mode. Therefore, the video playback device that provides the video signal to the display device must be able to provide both the video signal in the progressive scan format and the video signal in the interlaced scan format. [0003] figure 1 Display existing video playback devices. As shown in the figure, the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G5/00G09G1/16H04N5/66
Inventor 黄伟智
Owner PRINCETON TECH CORP
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