Show television waveform, Electrical Engineering

Q. Show television waveform?

The television waveform representing one scan is illustrated in Figure. A blanking pulse with a duration of 0.18 of the horizontal - sweep period Th is added to the visual voltage generated by the camera. While the blanking pulse turns off the electron beam in the receiver's picture tube during the horizontal retrace time, an added sync (synchronization) pulse helps the receiver to synchronize its horizontal scanning rate with that of the transmitter. Also, a burst of at least 8 cycles of 3.579545 MHz, called the color burst, is added to the "back porch" of the blanking pulse for synchronizing the receiver's color circuits. The visual information fluctuates according to the image between the "black level" and the "white level" set at 70.3% and 12.5%, respectively, of the peak amplitude. An array of various sync pulses are added on top for both horizontal and vertical synchronization purposes.

Posted Date: 6/29/2013 8:02:57 AM | Location : United States







Related Discussions:- Show television waveform, Assignment Help, Ask Question on Show television waveform, Get Answer, Expert's Help, Show television waveform Discussions

Write discussion on Show television waveform
Your posts are moderated
Related Questions
Q. Point charges, each of √4πε 0 C, are located at the vertices of an equilateral triangle of side a. Determine the electric force on each charge.

Q. What do you mean by Noise? In any communication system there are usually two dominant factors that limit the performance of the system: 1. Additive noise, generated by el

Q. Explain about Dial Pulses? Dial pulsing (sometimes known as rotary dial pulsing) is the method basically used to transfer digits from a telephone set to the local switch. Pu

what is compensation of bjt

Q . Differentiate between an integrator and differentiator? Integrators 1 Integrators are circuits in which output voltage is proportional to the integral of the input.

Transients in R-L-C circuits: Scenario The Laplace transform is a valuable mathematical tool which allows the solution of difficult differential equations to be easily de

Discuss all the five software interrupt instructions. The INTEL family microprocessor consist of software interrupts INT, INT0, INT3 and BOUND and IRET. Out of all these five


An n-channel depletion MOSFET, for which I DSS = 7mA and V P = 4 V, is said to be operating in the ohmic region with drain current i D = 1 mA when v DS = 0.8 V. Neglecting the

Primacy of MOSFET In the year 1959, Dawon Kahng and Martin M. (John) Atalla at Bell laboratory invented the MOSFET. Operationally and structurally diverse from the bipolar ju