公开(公告)号：US10057962B2

公开(公告)日：2018-08-21

申请号：US15442788

申请日：2017-02-27

Applicant: CASIO COMPUTER CO., LTD.

Inventor： Masami Yuyama

IPC: H05B37/02 ,  G01D5/347 ,  H05B33/08 ,  H01L31/0203

CPC classification number: H05B37/0227 ,  G01D5/3473 ,  H01L31/0203 ,  H05B33/0869

Abstract: A photointerrupter includes a light emitter and a light receiver integrally formed with each other. The light emitter includes at least two light sources and emits light. At least one of the at least two light sources are individually tunable in light intensity. The light receiver receives the light from the light emitter.

公开(公告)号：US09641010B2

公开(公告)日：2017-05-02

申请号：US15062014

申请日：2016-03-04

Applicant: CASIO COMPUTER CO., LTD.

Inventor： Masami Yuyama

IPC: G06K19/06 ,  H02J7/00 ,  G06K19/07

CPC classification number: H02J7/0052 ,  G06K19/0708 ,  G06K19/0709 ,  G06K19/0723 ,  H02J7/345

Abstract: A charger includes a power obtaining unit and a power transfer unit. The power obtaining unit charges a first power storage device with a voltage supplied from outside. The power transfer unit transfers power stored in the first power storage device to a second power storage device so as to store the power in the second power storage device. The power transfer unit includes a voltage decrease reduction unit. The voltage decrease reduction unit reduces voltage decrease of the first power storage device per transfer of the power from the first power storage device to the second power storage device. The second power storage device has a capacitance larger than the first power storage device.