UNIT –III engineeringeefefdfefregthth.pptx

PUSH − Used to put a word at the top of the stack.
POP − Used to get a word from the top of the stack to the provided location.
XCHG − Used to exchange the data from two locations.
XLAT − Used to translate a byte in AL using a table in the memory.
PUSHA − Used to put all the registers into the stack.
POPA − Used to get words from the stack to all registers.
PUSH − Used to put a word at the top of the stack.
POP − Used to get a word from the top of the stack to the provided location.
XCHG − Used to exchange the data from two locations.
XLAT − Used to translate a byte in AL using a table in the memory.
PUSHA − Used to put all the registers into the stack.
POPA − Used to get words from the stack to all registers.
PUSH − Used to put a word at the top of the stack.
POP − Used to get a word from the top of the stack to the provided location.
XCHG − Used to exchange the data from two locations.
XLAT − Used to translate a byte in AL using a table in the memory.
PUSHA − Used to put all the registers into the stack.
POPA − Used to get words from the stack to all registers.
PUSH − Used to put a word at the top of the stack.
POP − Used to get a word from the top of the stack to the provided location.
XCHG − Used to exchange the data from two locations.
XLAT − Used to translate a byte in AL using a table in the memory.
PUSHA − Used to put all the registers into the stack.
POPA − Used to get words from the stack to all registers.
PUSH − Used to put a word at the top of the stack.
POP − Used to get a word from the top of the stack to the provided location.
XCHG − Used to exchange the data from two locations.
XLAT − Used to translate a byte in AL using a table in the memory.
PUSHA − Used to put all the registers into the stack.
POPA − Used to get words from the stack to all registers.
PUSH − Used to put a word at the top of the stack.
POP − Used to get a word from the top of the stack to the provided location.
XCHG − Used to exchange the data from two locations.
XLAT − Used to translate a byte in AL using a table in the memory.
PUSHA − Used to put all the registers into the stack.
POPA − Used to get words from the stack to all registers.
PUSH − Used to put a word at the top of the stack.
POP − Used to get a word from the top of the stack to the provided location.
XCHG − Used to exchange the data from two locations.
XLAT − Used to translate a byte in AL using a table in the memory.
PUSHA − Used to put all the registers into the stack.
POPA − Used to get words from the stack to all registers.
PUSH − Used to put a word at the top of the stack.
POP − Used to get a word from the top of the stack to the provided location.
XCHG − Used to exchange the data from two locations.
XLAT − Used to translate a byte in AL using a table in the memory.
PUSHA − Used to put all the registers into the stack.
POPA − Used to get words from the stack to all registers.
PUSH − Used to put a word at the top of the stack.
POP − Used to get a word from the top of the stack to the provided cs

1. UNIT –III OPTICAL RECORDING AND REPRODUCTION

2. Optical Recording and Reproduction Audio Disc – Processing of the Audio signal – read out from the Disc – Reconstruction of the audio signal– Video Disc – Video disc formats-recording systems –Play back Systems, CD player and DVD player, Blue ray discs.

3. OPTICAL RECORDING ON DISC Basics of compact Disc Optical Recording on Disc Digitization of audio signal Playback process Advantages and Disadvantages

4. Basics of Compact Disc As Digital circuit offer complete immunity to noise, efforts were made to record sound in digital form. Different countries were using different video systems Philips and Sony started working on a development project to record digitized sound These efforts resulted into birth of ‘Compact Disc’ system.

5. Optical Recording on Disc Analog signal is translated in digital form Laser Beam is modulated by digitized audio signal Contain record of Digital audio signal in form of pits of 1µm depth and 0.5µm width. Separation between adjacent track (pitch) is 1.6 µm

6. Digitization of A udio signal The audio signal is sampled at 44.1KHz Quantum level pertain is 16 bits Data rate is 44.1k x 16 = 705.6kbps For 1s Laser is ON and for 0s Laser is OFF

7. Advantages of Compact Disc It is not affected by dust, grease and scratches. SNR is Very High ,about 90 dB Wow and Flutter does not exist Distortion is low Frequency response is excellent over audio frequencies (20Hz to 20 KHz Compact in Size

8. Disadvantages Cost is High Recording Can not be erased

9. VIDEO DISC MASTERING AND REPLICATION

10. VIDEO DISC FORMAT Laser Optical System Capacitance System

11. LASER VISION

12.   SELECTAVISION (RCA)

13. V ideo signal pick up in VHD system uses a cantilever arm

14. JVC SYSTEM

15. RECORDING SYSTEM

16. SIGNAL PROCESS ENCODING

17. SPECTRUM OF VIDEO AND AUDIO SIGNALS

18. PLAY BACK SYSTEM

19. Discovery of Disc

20. P rocessing

21. Ranges

22. Basics

23. Data’s

24. Comparison of DVD and Blu Ray

25. Blu Ray Disc