US 11,807,486 B2
Sensor control apparatus and image apparatus
Makoto Arima, Abiko (JP); Takeshi Honda, Kashiwa (JP); and Mitsuhiro Sugeta, Nagareyama (JP)
Assigned to CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed by CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed on Mar. 9, 2020, as Appl. No. 16/812,853.
Application 16/812,853 is a continuation of application No. PCT/JP2018/046831, filed on Dec. 19, 2018.
Claims priority of application No. 2017-246944 (JP), filed on Dec. 22, 2017; and application No. 2018-236028 (JP), filed on Dec. 18, 2018.
Prior Publication US 2020/0207570 A1, Jul. 2, 2020
Int. Cl. B65H 43/08 (2006.01); G06F 3/12 (2006.01); B65H 7/14 (2006.01)
CPC B65H 43/08 (2013.01) [B65H 7/14 (2013.01); G06F 3/1279 (2013.01); B65H 2553/412 (2013.01); G03G 2215/00616 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A sensor control apparatus, comprising:
a control unit; and
a plurality of sensors connected in series to the control unit,
each of the plurality of sensors including:
a detector configured to perform a detection operation based on a first voltage applied from the control unit;
a first switch provided on an application path for applying a voltage, which extends from the control unit to the detector;
a second switch provided on a supply path for supplying the voltage applied from the control unit to a sensor connected in a subsequent stage; and
a conduction control unit configured to:
bring the first switch into conduction and cut off the second switch in a case where the voltage on the application path is the first voltage; and
cut off the first switch and bring the second switch into conduction in a case where the voltage on the application path is a second voltage, which is different from the first voltage,
wherein the control unit is configured to cause a sensor in a first stage to perform the detection operation by applying the first voltage to the sensor in the first stage, and then cause a sensor in a second stage to perform the detection operation by applying the second voltage and then applying the first voltage.