Title:
画像読取装置、電子機器及び制御方法
Document Type and Number:
Japanese Patent JP7441739
Kind Code:
B2
Abstract:
A scanner includes: a pulse generator that generates a pulse signal; a transmissive optical sensor including a photo transmitter that projects pulsed light in response to the pulse signal and a photo receiver facing the photo transmitter; a charge-discharge unit capable of storing an electric charge of the pulse signal and discharging the stored electric charge; and a controller that causes the charge-discharge unit to discharge the electric charge when the photo receiver receives the pulsed light, causes the charge-discharge unit to store the electric charge when the photo receiver does not receive the pulsed light, and that starts supply of power to a CPU when an amount of the electric charge is at or above a threshold.
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Inventors:
Kyohei Oura
Application Number:
JP2020105288A
Publication Date:
March 01, 2024
Filing Date:
June 18, 2020
Export Citation:
Assignee:
Pfu corporation
International Classes:
H04N1/00
Domestic Patent References:
| JP2003229983A | ||||
| JP60102961A | ||||
| JP2005275154A |
Attorney, Agent or Firm:
Sakai International Patent Office