An imager with a ramp modulation analog-to-digital converter. The ramp modulation analog-to-digital converter uses a ramp generator capable of generating ramp voltages that change by more than one step to reduce the number of steps in the conversion process.

 
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> A/D conversion processing apparatus providing improved elimination of effects of noise through digital processing, method of utilizing the A/D conversion processing apparatus, and electronic control apparatus incorporating the A/D conversion processing apparatus
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