Electronic apparatus
AssigneeFUJIFILM Corporation
InventorMasahiko MIYATA
Life of this patent
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Abstract
An electronic apparatus includes: a processor; a first electronic circuit that outputs a pulse width modulation signal; a low-pass filter circuit that outputs a voltage based on the pulse width modulation signal; a second electronic circuit that outputs an analog signal by using the output voltage of the low-pass filter circuit; and a third electronic circuit that converts the analog signal into a digital signal, and the processor sets a frequency of the pulse width modulation signal to a frequency at which a noise component included in the digital signal is reduced in relation to a sampling frequency of the third electronic circuit.
Claims20
An electronic apparatus comprising:
- a processor;
- a first electronic circuit that outputs a pulse width modulation signal;
- a low-pass filter circuit that outputs a voltage based on the pulse width modulation signal;
- a second electronic circuit that outputs an analog signal by using the output voltage of the low-pass filter circuit;
- and
- a third electronic circuit that converts the analog signal into a digital signal,
- wherein the processor sets a frequency of the pulse width modulation signal to a frequency at which a noise component included in the digital signal is reduced in relation to a sampling frequency of the third electronic circuit.
Dependencies are inferred from the claim text.