Chapter 9. Digital Signals
Digital signal definition. Binary scale and denary scale. Converting between binary and denary. Use of switching circuits for binary signals. Recording digitally. CD and DVD. Bits, bytes and words. Saturation recording on magnetic media. Digital broadcasting. Signal bursts rather than real-time. Reducing redundancy in an analog signal. Digital compression. Converting between analog and digital signals. Sample and hold. Quantizing a waveform. Levels of quantization. Sampling rates. Bit depth. Digital coding. Parallel and serial connections. Shannon’s Law. Analog to digital. Digital to analog. Serial transmission. Asynchronous system using start and stop bits. Long runs of 0 or 1 bits. Use of parity. ETF code conversion. ...

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