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Posted By: rama Member Level: Silver Posted Date: 10 Jun 2008
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2008 Anna University B.E Electronics and Communication EC1011 TELEVISION AND VIDEO ENGINEERING Question paper
EC1011 TELEVISION AND VIDEO ENGINEERING
AIM
Television Technology has now become a vital tool to the information revolution that is sweeping across the countries of the world. The syllabus aims at a comprehensive coverage of Television Systems with all the new developments in Television Engineering
OBJECTIVES
• To study the analysis and synthesis of TV Pictures, Composite Video Signal, Receiver Picture Tubes and Television Camera Tubes
• To study the principles of Monochrome Television Transmitter and Receiver systems.
• To study the various Color Television systems with a greater emphasis on PAL system.
• To study the advanced topics in Television systems and Video Engineering
UNIT I FUNDAMENTALS OF TELEVISION 8
Geometry form and Aspect Ratio - Image Continuity - Number of scanning lines - Interlaced scanning - Picture resolution - Camera tubes- Image orthicon - vidicon-plumbicon-silicon diode array vidicon-solid state image scanners- monochrome picture tubes- composite video signal-video signal dimension- horizontal sync. Composition- vertical sync. Details – functions of vertical pulse train – scanning sequence details. Picture signal transmission – positive and negative modulation – VSB transmission sound signal transmission – standard channel bandwidth.
UNIT II MONOCHROME TELEVISION TRANSMITTER AND RECEIVER 9
TV transmitter – TV signal propagation – Interference – TV transmission Antennas – Monochrome TV receiver – RF tuner – UHF, VHF tuner- Digital tuning techniques- AFT-IF subsystems - AGC – Noise cancellation- Video and sound inter carrier detection- vision IF subsystem- video amplifiers requirements and configurations - DC re-insertion - Video amplifier circuits- Sync separation – typical sync processing circuits- Deflection current waveform – Deflection Oscillators – Frame deflection circuits – requirements- Line Deflection circuits – EHT generation – Receiver Antennas.
UNIT III ESSENTIALS OF COLOUR TELEVISION 8
Compatibility – colour perception- Three colour theory- luminance, hue and saturation-colour television cameras- values of luminance and colour difference signals- colour television display tubes- delta – gun-precision – in-line and Trinitron colour picture tubes- purity and convergence- purity and static and dynamic convergence adjustments- pincushion correction techniques- automatic degaussing circuit- grey scale tracking – colour signal transmission- bandwidth- modulation of colour difference signals – weighting factors- Formation of chrominance signal.
UNIT IV COLOUR TELEVISION SYSTEMS: 10
NTSC colour TV system- NTSC colour receiver- limitations of NTSC system – PAL colour TV system – cancellation of phase errors- PAL –D colour system- PAL coder – Pal-Decolour receiver- chromo signal amplifier- separation of U and V signals- colour burst separation – Burst phase Discriminator – ACC amplifier- Reference Oscillator- Ident and colour killer circuits- U and V demodulators- Colour signal matrixing – merits and demerits of the PAL system – SECAM system – merits and demerits of SECAM system.
UNIT V ADVANCED TELEVISION SYSTEMS 10
Satellite TV technology- Cable TV – VCR- Video Disc recording and playback- Tele Text broadcast receiver – digital television – Transmission and reception- projection Television – Flat panel display TV receiver – Sterio sound in TV – 3D TV – EDTV – Digital equipments for TV studios.
TOTAL : 45
TEXT BOOKS
1. R.R.Gulati, “ Monochrome Television Practice, Principles, Technology and servcing , Second edition, New age International Publishes, 2004 (Unit I,II,IV and V)
2. R.R.Gulati “Monochrome and colour television “, New age Internationl Publisher, 2003 (Unit I,III and IV)
REFERENCES
1. A.M Dhake, “Television and Video Engineerign”, Second edition, TMH, 2003.
2. S.P.Bali, “ Colour Television, Theory and Practice”, TMH, 1994
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