Digital Video Recorder _DVR

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Taiwan

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Cashier Order

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1

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Box

When the VCR was first introduced to the public, the television industry reacted with panic. Here was a device that would let people record programs, watch them when they felt like it as opposed to when the programming staff decided they should, and (scariest of all) skip through the commercials!
But the television industry survived, and VCRs are commonplace. Now, a new innovation has come along that makes recording television programs even more convenient: the digital video recorder, or DVR.
There are three predominant DVR types on the market: TiVo, ReplayTV and UltimateTV, with TiVo being the current market leader. In this article, we'll learn all about DVRs and find out what sets them apart from other recording technologies.
THE BASICS
In a nutshell, a DVR is a glorified hard drive inside a fancy box that looks nice in your entertainment center. The hard drive is connected to the outside world through a variety of jacks on the back of the box, usually the typical RCA connections that you would use to hook up, say, a cable box or a VCR.
Inside a typical DVR: In this diagram, the tuner, MPEG-2 encoder and MPEG-2 decoder are shown as separate parts for clarity, but they are all likely to be integrated onto the main board in an actual DVR.
Now there are MPEG4 video format enter to the market with new technology of Video Compression software/hardware to be a 150 Mbyte/hour space to record the hardisk.
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