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Encryption
8 Scrambling Techniques (1) • Use scrambling to replace se quences that would produce constant voltage • These filling sequences must: o produce enough transitions to sync o be recognized by receiver & replaced with original o be same length as original • Design goals o have no dc component o have no long sequences of zero level line signal o have no reduction in data rate o give error detection capability
One method of translating data into code is by using encoding techniques. Encoding is the process of transforming data into a format that can be easily processed or transmitted by a computer. Common encoding methods include binary encoding, ASCII encoding, and Unicode encoding. These methods assign numeric values or patterns to represent the data, allowing it to be stored or transmitted as code.
The digital encoding techniques are of two types--Polar and Bipolar. The polar encoding are--RZ(Return to Zero), NRZ (No RZ) , Manchester and Differential Manchester. Bipolar encoding are--AMI ( Alternate Mark Inversion) and BnZS ( Bipolar n Zero Substitution).
There are four possible combinations of encoding techniques -Digital data, digital signal -Digital data, analog signal -Analog data, digital signal -Analog data, analog signal
Encoding: The way in which the computer data is represented is known as encoding, there are several encoding techniques (Unipolar, Bipolar and Biphase).Modulation: Modulation is the method of changing some of the characteristics of the message signal so that it can be transmitted to comparatively large distance without(least) getting affected by noise or unwanted signals.Encoding: The way in which the computer data is represented is known as encoding, there are several encoding techniques (Unipolar, Bipolar and Biphase).Modulation: Modulation is the method of changing some of the characteristics of the message signal so that it can be transmitted to comparatively large distance without(least) getting affected by noise or unwanted signalsEncoding : Digital or Analog data --> Digital signalmodulation : Digital or Analog data --> Analog signal
encoding
No. They function in encoding, transmitting and expressing genetic information. Meaning that they are what genes are made of and how the genes are expressed.
Encoding simply refers to the "encoding" of one single file. Batch encoding refers to setting up several files to encode one after another. It's basically automated.
the encoding of picture images.
1) to identify where the frame starts and ends 2) to distinguish data bits from control bits
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