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1. GENERAL PRESENTATION PANKAJ SINGH JARIAL ROLL NO: B2703 B-TECH(IT)MBA

2. Television

3. PRINCIPLE If you divide a still image into a collection of small colored dots, your brain will reassemble the dots into a meaningful image.

4. If we show the still images in rapid succession, the brain will reassemble the still images into a single, moving scene

7. TV STEERING COIL

8. IMAGE PAINTING Raster scan

9. Interlacing Progressive scanning VEDIO

10. BROADCASTING SIGNALS

11. Intensity information Horizontal-retrace signals Vertical-retrace signals SIGNAL HENCE CALLED AS COMPOSITE VEDIO SIGNAL SIGNAL CONTAIN ??

12. BLACK AND WHITE

13. COLORED SIGNAL

15. luma represents the brightness in an image Luma is typically paired with chroma Luma represents the achromatic image without any color, while the chroma components represent the color information CHROMA AND LUMA

16. COLOR SUBSAMPLING

17. Conventional CRT sets display around 480 visible lines of pixels. Analog pictures are interlaced Converting video to analog format lowers its quality worst computer monitors have more resolution than the best analog TV The best computer monitors are able to display up to 10 times more pixels than that TV set WHATS WRONG WITH ANALOG TV

19. Different frequency for digital broadcast Each broadcaster has an analog TV channel and a digital TV channel A broadcaster can send a single program at 19.39 Mbps A broadcaster can divide the channel into several different streams DTV

20. 480i - The picture is 704x480 pixels, sent at 60 interlaced frames per second (30 complete frames per second). 480p - The picture is 704x480 pixels, sent at 60 complete frames per second. 720p - The picture is 1280x720 pixels, sent at 60 complete frames per second. 1080i - The picture is 1920x1080 pixels, sent at 60 interlaced frames per second (30 complete frames per second). 1080p - The picture is 1920x1080 pixels, sent at 60 complete frames per second. Different formats