Search
Progressive scan versus interlace scan
| Added: 26-07-2006 Author: Larry Dixon Category: Tele Satellite |
← Back | ↓ Related | Home → |
Before the arrival of progressive scan, conventional analogue TV signals will be used by a lot of scanning. Two main types of many technologies is to run the scan shows an example of video images. Prices in Canada, Mexico and the United Nations, and parts of South America, NTSC is built on the technology as follows: a 525-line and 60 frames per second and 60 Hz fields/30 and transfer system for drawing pictures. Frame-scan one by one, reading in two different groups each of 262 lines. Lines together and then submit a picture frame that has 525 verses.
PAL is used in the international transmission of analog signals on TV. 625 lines using the latest technology, and 50 frames per second and 50 Hz fields/25 system. Video signal is much difference in the two groups, each made up to 312 lines. PAL NTSC win is because the number of scan lines involved. Quality is also better. PAL population and the appropriate level where their product is the same movie.
Progressive Scan technology was created to enhance the video display. His resurrection and the development of parallel computers. Standard television monitor at first used with computers, but these researchers did not have enough power to the video because they use interlacing. Progressive scanning is created to deal with the situation. Progressive scanning, scan lines of different images in that they seem, where and fabric, line-scan in turn. Progressive scanning provides a more consistent, even pictures, one for the character under fading in and out, and one Displaying sharp, clear detail.
Because they represent such as repairs, progressive scan is now widely used in DVDs and high definition television. The use of digital technology is also seen on television. DTV transmit line 480, in stages. HDTV broadcasts 720 lines progressive.
Audiences Scan progress, all of home theater equipment should be progressive scan capabilities. This means that TV and cable or satellite receiver, DVD player must also be progressive scan-ready. Many of these components has ouptuts progressive scan. They also have an interface that can overcome the development of signal transmission scan TV.
For example, many older TV that does not come equipped with inputs for the development of scan-ready equipment. In fact, if you buy a DVD player's progressive scan, and you come back t ISN progressive scan-ready TV, then won t benefit from the technology all the time.
Link to this article:
Several similar publications