Chapter 4
Signals • Analog and digital • Aperiodic and periodic signals • Analog signals
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Figure 4-1
Transformation of Information to Signals
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Figure 4-2
Analog and Digital Clocks
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Figure 4-3
Analog and Digital Signals
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Figure 4-4
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Periodic Signals
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Figure 4-5
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Aperiodic Signals
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Figure 4-6
Sine Wave
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