this ppt is about hdtv

1. HDTVHDTV
By: SIDDHARTHAN.CBy: SIDDHARTHAN.C

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. VARIOUS FACTORS…VARIOUS FACTORS…


4. HDTV Sizes…HDTV Sizes…

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. Application ExampleApplication Example

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. Aspect Ratio…Aspect Ratio…


9. Block Diagram of the HDTV video decoderBlock Diagram of the HDTV video decoder

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. 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

15. THANKS FOR WATCHINGTHANKS FOR WATCHING
MY PRESENTATION…MY PRESENTATION…