Collapsible type DVD device embedded in digital television set
A television and detachable technology, applied in the field of detachable DVD devices, can solve the problems of affecting the clarity of the picture, attenuating the high-frequency part of the signal, unable to reproduce realistic colors and perfect sound effects, etc., to achieve the effect of improving portability
Inactive Publication Date: 2011-05-11
上海晖悦数字视频科技有限公司
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Problems solved by technology
The traditional DVD player connected to the TV loses the video signal and audio signal due to the multiple transmissions of the external cable, which greatly reduces the high-definition picture quality that should have been, and cannot reproduce realistic colors and perfect sound effects.
Since the video signal generated by the DVD player must first be converted from the "internal connection" to the "external connection", after being transmitted to the TV via the S line, it is then converted from the "external connection" to the "internal connection". The conversion will inevitably attenuate the high frequency part of the signal, thus affecting the clarity of the picture, which is unavoidable
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[0024] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0025] FIG. 1 shows the structure of a preferred embodiment of the built-in detachable DVD device of the present invention. Referring to FIG. 1 , the digital TV 2 has a slot, and the slot is provided with a connecting interface (not shown), which is connected to a decoding chip (not shown) inside the digital TV. DVD device 1 links to each other with the connecting interface on the slot through interface module, and interface module comprises power interface, Y component video signal interface, Pb component video signal interface, Pr component video signal interface (Y component, Pb component and Pr component can be collectively referred to as YPbPr standard video signal interface), left channel audio signal interface, right channel audio signal interface.
[0026] FIG. 2 shows the principle of the built-in detachable DVD device of the present invention...
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The invention relates to a detachable DVD device placed in a digital TV, which can be drawn freely. The detachable DVD comprises a DVD CD-driver reading module for reading the data in CD, a MPFG decoding module to decode the read data and produce audio code flow and video code flow, a digit-analog conversion module to convert the decoded audio code flow and video code flow into analog signals, aninterface module to transmit the analog signals to the decoding chip through the connection interface in the digital TV, then the analog signals are driven into audio signals and video signals and output thereafter.
Description
technical field [0001] The invention relates to a DVD device, in particular to a detachable DVD device built in a digital TV set with an embedded real-time operating system. Background technique [0002] As everyone knows, along with the raising of people's material and cultural life, DVD player has become the necessities of family life just as TV set. However, the traditional method of externally connecting a TV to a DVD player will cause the device to occupy a large space, and there are many connections behind the device, which affects the appearance of the wiring. [0003] In addition, since DVD is an audio-visual product that uses digital processing technology to generate high-quality images. The traditional DVD player connected to the TV loses the video signal and audio signal due to the multiple transmissions of the external cable, which greatly reduces the supposed high-definition picture quality, and cannot reproduce realistic colors and perfect sound effects. Sinc...
Claims
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IPC IPC(8): G11B31/00
Inventor 朱仕康
Owner 上海晖悦数字视频科技有限公司