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hdtv ppt slide

  1. 1. HDTVHDTV By: SIDDHARTHAN.CBy: SIDDHARTHAN.C
  2. 2. Analog vs. Digital SignalsAnalog vs. Digital Signals  Analog transmission: the signal is transmitted in a continuousAnalog transmission: the signal is transmitted in a continuous signal that varies in amplitude. The signal can easilysignal that varies in amplitude. The signal can easily deteriorate.deteriorate.  Digital transmission converts the analog television signal intoDigital transmission converts the analog television signal into a series of digital bits.a series of digital bits.  Digital signals don't weaken with distance.Digital signals don't weaken with distance.  No deterioration.No deterioration.  Exact end-to-end reproduction, digital means better pictureExact end-to-end reproduction, digital means better picture and sound quality, no matter what is broadcast.and sound quality, no matter what is broadcast.
  3. 3. VARIOUS FACTORS…VARIOUS FACTORS… 
  4. 4. HDTV Sizes…HDTV Sizes…
  5. 5. Frame SizeFrame Size  Frame sizeFrame size  Frame size is defined as the number of horizontal pixels timesFrame size is defined as the number of horizontal pixels times the number of vertical pixels, e.g. 1280x720 or 1920x1080.the number of vertical pixels, e.g. 1280x720 or 1920x1080.  the different systems are usually referred to as 720 or 1080,the different systems are usually referred to as 720 or 1080,  an HDTV is two to five times larger.an HDTV is two to five times larger.
  6. 6. Application ExampleApplication Example
  7. 7. Frame rate…Frame rate…  Frame rate is defined as the number of image frames perFrame rate is defined as the number of image frames per second (fps).second (fps).
  8. 8. Aspect Ratio…Aspect Ratio… 
  9. 9. Block Diagram of the HDTV video decoderBlock Diagram of the HDTV video decoder
  10. 10. Pin 1 TMDS Data2+ Pin 2 TMDS Data2 Shield Pin 3 TMDS Data2– Pin 4 TMDS Data1+ Pin 5 TMDS Data1 Shield Pin 6 TMDS Data1– Pin 7 TMDS Data0+ Pin 8 TMDS Data0 Shield Pin 9 TMDS Data0– Pin 10 TMDS Clock+ Pin 11 TMDS Clock Shield Pin 12 TMDS Clock– Pin 13 CEC Pin 14 Reserved (N.C. on device) Pin 15 SCL Pin 16 SDA Pin 17 DDC/CEC Ground Pin 18 +5 V Power (max 50 mA) Pin 19 Hot Plug Detect HDMI TDMS (Transition Minimized Differential Signaling) High Definition Media InterfaceHigh Definition Media Interface
  11. 11. Storage and CompressionStorage and Compression  Uncompressed 1080i HD 675GB/hourUncompressed 1080i HD 675GB/hour  Anamorphic stretchingAnamorphic stretching  MPEG-2 codecMPEG-2 codec  Anamorphic stretchingAnamorphic stretching  H.264 codecH.264 codec
  12. 12. THANKS FOR WATCHINGTHANKS FOR WATCHING MY PRESENTATION…MY PRESENTATION…

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