Abstract
This chapter sketches the primary reasons that have led to the rapid adoption of digital video processing and interfacing throughout the television industry. Analog technology has improved to a great extent with the extensive usage of integrated circuits as opposed to the discrete semiconductor circuits. As a result, manufacturers have started to produce three-channel, component television equipment. Digital television offers the real alternative to analog composite processing. The circuit that performs the function of converting a continuous-time signal with the infinite number of possible states into a binary symbolic and quantized signal is better known as an “analog-to-digital converter.” If analog signals are sampled at an inadequate rate, it leads to an effect known as aliasing, where the high frequencies get “folded back” in the frequency domain and eventually come out as low frequencies. In EDH for digital video, the check-word is usually calculated with the usage of CRC polynomial generation method. Such a function is identical in both the receiver and the transmitter.
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