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TIME-BASED HYBRID ANALOG-DIGITAL COMPUTATION

TIME-BASED HYBRID ANALOG-DIGITAL COMPUTATION. Rahul Sarpeshkar Assistant Professor MIT Electrical Engineering and Computer Science. Media Lab 6/28/02. THE HYBRID STATE MACHINE (HSM). FINITE STATE MACHINE. HYBRID STATE MACHINE (HSM). “Spike” = Pulse or Digital Event.

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TIME-BASED HYBRID ANALOG-DIGITAL COMPUTATION

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  1. TIME-BASED HYBRID ANALOG-DIGITAL COMPUTATION Rahul Sarpeshkar Assistant Professor MIT Electrical Engineering and Computer Science Media Lab 6/28/02

  2. THE HYBRID STATE MACHINE (HSM) FINITE STATE MACHINE HYBRID STATE MACHINE (HSM) “Spike” = Pulse or Digital Event

  3. An HSM for Successive Approximation A/D Conversion .

  4. 13mV drift Stored Voltage (V) Analog Memory Element 8 bit-precise storagecharacteristic 8 bit-precise write characteristic Output Voltage (V) Input Voltage (V) Time (s) Uses a clock to do signal restoration without explicit quantization on voltage Information that has been first converted to time. When time is a signal variable, a clock is a powerful tool for quantization since you round up or round down to the nearest clock edge.

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