公开(公告)号：US11108258B2

公开(公告)日：2021-08-31

申请号：US16278523

申请日：2019-02-18

Applicant: CASIO COMPUTER CO., LTD.

Inventor： Fumiaki Ochiai ,  Yoshinori Asami ,  Yohei Kawaguchi ,  Katsuhiko Obata

IPC: H02J7/00 ,  G04G19/06 ,  H01M10/48 ,  G01R19/165 ,  G01R31/36 ,  H02J7/35 ,  G01R31/3842

Abstract: An electronic timepiece includes a secondary battery, a first power feeder, a second power feeder, and a processor. The first power feeder feeds power to the secondary battery. The second power feeder feeds power to the secondary battery at a current larger than a current fed by the first power feeder. The processor determines remaining power of the secondary battery based on different references that are a reference of when the first power feeder is feeding the power to the secondary battery and a reference of when the second power feeder is feeding the power to the secondary battery.

公开(公告)号：US10459408B2

公开(公告)日：2019-10-29

申请号：US15885238

申请日：2018-01-31

Applicant: CASIO COMPUTER CO., LTD.

Inventor： Kosuke Hasegawa ,  Yohei Kawaguchi ,  Katsuhiko Obata ,  Mitsuaki Matsuo ,  Shimpei Matsuda

IPC: G04G21/04 ,  G04R20/26 ,  G04G9/00 ,  G04R20/04 ,  G04C10/00 ,  G04R60/06

Abstract: An electronic timepiece, including: a counter; a display section; a first processor; a second processor; and a power supply section which supplies electric power to each section from a battery, wherein when an output voltage from the power supply section decreases to less than a predetermined first reference voltage, the first processor stops a display operation by the display section, when the time information is acquired by the processing operation of the second processor, the first processor corrects the time counted by the counter based on the acquired time information and causes the display section to display the corrected time, and when the output voltage decreases to less than the first reference voltage following an acquisition operation of the time information by the second processor, the first processor does not stop a time display operation during a predetermined pending period.

公开(公告)号：US11906936B2

公开(公告)日：2024-02-20

申请号：US17382790

申请日：2021-07-22

Applicant: CASIO COMPUTER CO., LTD.

Inventor： Fumiaki Ochiai ,  Yoshinori Asami ,  Yohei Kawaguchi ,  Katsuhiko Obata

IPC: G04G19/06 ,  H02J7/00 ,  H01M10/48 ,  G01R19/165 ,  G01R31/36 ,  G04C10/04 ,  H02J7/35 ,  G01R31/3842

CPC classification number: G04G19/06 ,  G01R19/16542 ,  G01R31/36 ,  G04C10/04 ,  H01M10/486 ,  H02J7/007 ,  H02J7/0048 ,  H02J7/0071 ,  H02J7/007194 ,  G01R31/3842 ,  H02J7/35

Abstract: An electronic apparatus includes a secondary battery, a first power feeder, a second power feeder, and a processor. The first power feeder feeds power to the secondary battery. The second power feeder feeds power to the secondary battery at a current larger than a current fed by the first power feeder. The processor selects an operation mode of the electronic apparatus based on different reference values selected based on whether the first power feeder is feeding power to the secondary battery or the second power feeder is feeding power to the secondary battery.

公开(公告)号：US10509371B2

公开(公告)日：2019-12-17

申请号：US15891804

申请日：2018-02-08

Applicant: CASIO COMPUTER CO., LTD.

Inventor： Takeshi Hanada ,  Katsuhiko Obata ,  Mitsuaki Matsuo ,  Hirofumi Nagareda ,  Tadashi Kojima ,  Oh Takahashi ,  Toyokazu Nishio

IPC: G01R31/36 ,  G04G21/04 ,  G04G5/00 ,  G04G19/00 ,  G08B21/18 ,  G04C10/02 ,  G04C10/04 ,  G04R20/26

Abstract: A smartphone includes a receiver, a log acquirer, a determiner, an information notifier, and a display. The receiver is in wireless communication with a time display device. The log acquirer acquires log data from the time display device by the receiver. The determiner determines the usage status of the time display device on the basis of the log data acquired by the log acquirer. The information notifier provides, via the display, notification of information corresponding to the usage status determined by the determiner.

公开(公告)号：US12261468B2

公开(公告)日：2025-03-25

申请号：US18412616

申请日：2024-01-15

Applicant: CASIO COMPUTER CO., LTD.

Inventor： Fumiaki Ochiai ,  Yoshinori Asami ,  Yohei Kawaguchi ,  Katsuhiko Obata

IPC: H02J7/00 ,  G01R19/165 ,  G01R31/36 ,  G04C10/04 ,  G04G19/06 ,  H01M10/48 ,  G01R31/3842 ,  H02J7/35

Abstract: An electronic apparatus includes a secondary battery, a first power feeder, a second power feeder, and a processor. The first power feeder feeds power to the secondary battery. The second power feeder feeds power to the secondary battery at a current larger than a current fed by the first power feeder. The processor detects a voltage of the secondary battery, and determines a remaining power of the secondary battery based on a comparison of the detected voltage with first or second reference values. The first reference value is a predetermined value set in accordance with the current fed by the first power feeder. The second reference value is a predetermined value set in accordance with the current fed by the second power feeder, and is higher than the first reference value.

公开(公告)号：US11507030B2

公开(公告)日：2022-11-22

申请号：US16124237

申请日：2018-09-07

Applicant: CASIO COMPUTER CO., LTD.

Inventor： Yuki Oshita ,  Katsuhiko Obata ,  Akihiro Kuroha

IPC: G04R20/04 ,  G04G21/04 ,  G01R31/3835 ,  G04B47/06

Abstract: A timepiece including a GPS receiver that receives a radio wave from a positioning satellite, a time counter that performs a time count operation, and a processor, the processor being configured to: corrects a time count of the time counter in accordance with time and date information included in the radio wave from the positioning satellite received by the GPS receiver; acquires a temperature in the timepiece; acquires a voltage of a battery; and controls a receive operation at the GPS receiver in accordance with the temperature and the voltage.

公开(公告)号：US10739731B2

公开(公告)日：2020-08-11

申请号：US16575182

申请日：2019-09-18

Applicant: CASIO COMPUTER CO., LTD.

Inventor： Kosuke Hasegawa ,  Yohei Kawaguchi ,  Katsuhiko Obata ,  Mitsuaki Matsuo ,  Shimpei Matsuda

IPC: G04C21/04 ,  G04G21/04 ,  G04R20/26 ,  G04G9/00 ,  G04C10/00 ,  G04R20/04 ,  G04R60/06

Abstract: An electronic timepiece, including: a counter; a display section; a first processor; a second processor; and a power supply section which supplies electric power to each section from a battery, wherein when an output voltage from the power supply section decreases to less than a predetermined first reference voltage, the first processor stops a display operation by the display section, when the time information is acquired by the processing operation of the second processor, the first processor corrects the time counted by the counter based on the acquired time information and causes the display section to display the corrected time, and when the output voltage decreases to less than the first reference voltage following an acquisition operation of the time information by the second processor, the first processor does not stop a time display operation during a predetermined pending period.

公开(公告)号：US10568037B2

公开(公告)日：2020-02-18

申请号：US16278153

申请日：2019-02-17

Applicant: CASIO COMPUTER CO., LTD.

Inventor： Fumiaki Ochiai ,  Yoshinori Asami ,  Yohei Kawaguchi ,  Katsuhiko Obata

IPC: H04B1/06 ,  H04W52/02

Abstract: An electronic apparatus includes a first power feeder, a positioning-satellite-signal receiver, and a CPU. The first power feeder receives power from an external device and feeds the power to a secondary battery. The positioning-satellite-signal receiver receives a satellite signal transmitted by a positioning satellite. The CPU limits a receiving operation of the positioning-satellite-signal receiver when the first power feeder is receiving the power from the external device.