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Posted By: mehajabeen Member Level: Silver Posted Date: 19 Jun 2007
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2007 Anna University B.E Electrical and Electronics Television and Video Engineering Question paper
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B.E ECE
6TH SEM
TELEVISION AND VIDEO ENGINEERING
MAX:100
ANSWER THE FOLLOWING:
PART A-(10*2=20)
1. What is the purpose of blanking signal.?
2. What kind of modulation is used for video signal? Why?
3. What is the function of RF amplifier in a TV receiver?
4. What is the working purpose of an AGC circuit in a TV receiver?
5. Define hue and saturation .
6. Define compatibility with respect to TV receivers.
7. What is a colour killer circuit?
8. What are the factors that influence the choice of IF?
9. What are the advantages of HDTV over standard TV?
10. What are the different digital turning techniques?
PART-B-(5*16=80)
11. (a) (i) Explain the various geometrical distortions in the monochrome picture tube deflection and explain the methods to eliminate these.
(ii) Draw the transfer characteristics of monochrome picture tube and explain.
(Or)
(b) (i) Explain the working principle of a Vidicon camera tube.
(ii) Briefly explain interlaced scanning
12 (a) Write notes on :
(i) Propagation of TV signal.
(ii) TV antenna systems.
(Or)
(b) (i)Explain the working of a AFC circuit in a monochrome TV receiver.
(ii) Explain briefly the working of sound section of a monochrome TV receiver.
13 (a) Explain briefly NTSC and PAL systems.
(Or)
(b) (i) Explain color signal generation and encoding.
(ii) Explain the working of color picture tube.
14 (a) Explain the working of
(i) AGC circuit and
(ii) Burst phase discriminator circuit in a colour TV receiver.
(Or)
(b) Explain the working of
(i) Chrominance amplifier
(ii) U and V demodulators.
15, (a) Write notes on :
(i) Cable TV.
(ii) Digital TV
(or)
(b) Write notes on :
(i) Satellite TV
(ii) Video disc system
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