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公开(公告)号：US20240310789A1
公开(公告)日：2024-09-19
申请号：US18604156
申请日：2024-03-13
Applicant: CASIO COMPUTER CO., LTD.
Inventor： Yuta SAITO , Tomohiro INABA , Hua GAO , Yohei KAWAGUCHI , Akihiro KUROHA
IPC: G04D7/00
CPC classification number: G04D7/004
Abstract: An electronic timepiece includes a plurality of hands; a plurality of detection units that detect external light, arranged corresponding to the plurality of hands; and a control unit, wherein the control unit is configured to perform external light detection operations that respectively determine whether or not external light of a threshold value or more is detected at the plurality of detection units while moving the plurality of hands by a predetermined distance, respectively, and when there is a hand among the plurality of hands for which the external light detection operation detected external light and there is another hand among the plurality of hands for which the external light detection operation did not detect external light, perform the external light detection operation for said another hand again.
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公开(公告)号：US20220035318A1
公开(公告)日：2022-02-03
申请号：US17502089
申请日：2021-10-15
Applicant: CASIO COMPUTER CO., LTD.
Inventor： Daisuke UEMATSU , Takashi SANO , Yohei KAWAGUCHI , Tatsumi ICHIMURA , Takumi YASUDA
Abstract: An embodiment of an electronic timepiece includes a cylindrical exterior case, a bezel and a windshield member. In the exterior case, a circuit board is housed. The bezel is formed of a metal material to be ring-shaped, includes an inward flange part that projects from an inner side surface toward a center of the ring-shaped bezel, is arranged on an outer upper side of the exterior case and is electrically connected with the circuit board. The windshield member is formed of a transparent dielectric substance, arranged in the bezel and supported by the inward flange part. The bezel is configured to resonate with a radio wave having a desired frequency by adjustment of at least one of (i) a relative permittivity of the dielectric substance and (ii) an area of an overlap region where the inward flange part and the windshield member overlap each other.
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公开(公告)号：US20190137951A1
公开(公告)日：2019-05-09
申请号：US16182223
申请日：2018-11-06
Applicant: CASIO COMPUTER CO., LTD.
Inventor： Daisuke UEMATSU , Takashi SANO , Yohei KAWAGUCHI , Tatsumi ICHIMURA , Takumi YASUDA
Abstract: An embodiment of an electronic timepiece includes a cylindrical exterior case, a bezel and a windshield member. In the exterior case, a circuit board is housed. The bezel is formed of a metal material to be ring-shaped, includes an inward flange part that projects from an inner side surface toward a center of the ring-shaped bezel, is arranged on an outer upper side of the exterior case and is electrically connected with the circuit board. The windshield member is formed of a transparent dielectric substance, arranged in the bezel and supported by the inward flange part. The bezel is configured to resonate with a radio wave having a desired frequency by adjustment of at least one of (i) a relative permittivity of the dielectric substance and (ii) an area of an overlap region where the inward flange part and the windshield member overlap each other.
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4.发明公开公开(公告)号：US20240159564A1
公开(公告)日：2024-05-16
申请号：US18283571
申请日：2022-02-02
Applicant: CASIO COMPUTER CO., LTD.
Inventor： Shuto OIKAWA , Susumu YAMAZAKI , Yohei KAWAGUCHI , Takeshi MIYAKE , Tatsuyoshi OMURA
CPC classification number: G01C22/006 , G01P15/00
Abstract: An information processing device includes, at least one processor that derives frequency characteristics of time-series data of a measurement result by an acceleration sensor and determines whether the time-series data indicates a running/walking state in accordance with whether all determination conditions including at least a first condition and a second condition are satisfied, the first condition being a condition that a frequency having maximum intensity in the derived frequency characteristics is equal to or higher than a lower limit frequency set in advance, and the second condition being a condition that at least one of the frequency having the maximum intensity or a frequency having second largest intensity in the frequency characteristics falls within a range equal to or higher than the lower limit frequency and equal to or lower than an upper limit frequency set in advance.
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公开(公告)号：US20200012235A1
公开(公告)日：2020-01-09
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
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.
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Patent Agency Ranking
公开(公告)号：US20170038736A1
公开(公告)日：2017-02-09
申请号：US15214695
申请日：2016-07-20
Applicant: CASIO COMPUTER CO., LTD.
Inventor： Yohei KAWAGUCHI , Fumiaki OCHIAI , Yuta SAITO
Abstract: A motor drive device includes a driver unit configured to be connected to a stepping motor, and a controller connected to the driver unit. The controller causes the driver unit to output a drive pulse to the stepping motor for causing the stepping motor to rotate stepwise in a prescribed rotation direction. The controller detects, through the driver unit, a current induced by a counter-electromotive force generated in the stepping motor in response to the drive pulse. The controller causes the driver unit to apply a counter pulse having the same electrical polarity as the drive pulse to the stepping motor so as to suppress an amount of the current induced by the counter-electromotive force when the stepping motor is not rotating in response to the drive pulse so that the amount of the induced current detectably differs between when the stepping motor is rotating and not rotating.
Abstract translation: 电动机驱动装置包括被配置为连接到步进电动机的驱动器单元和连接到驱动器单元的控制器。 控制器使驱动单元向步进电机输出驱动脉冲，使步进电机沿规定的旋转方向逐步旋转。 控制器通过驱动器单元响应于驱动脉冲检测由步进电机中产生的反电动势引起的电流。 控制器使驱动器单元向步进电机施加与驱动脉冲具有相同电极性的计数脉冲，以便当步进电机不响应于步进电机而旋转时，抑制由反电动势引起的电流量 所述驱动脉冲使得所述感应电流的量在所述步进电机旋转并且不旋转时可检测地不同。
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公开(公告)号：US20150378313A1
公开(公告)日：2015-12-31
申请号：US14729414
申请日：2015-06-03
Applicant: CASIO COMPUTER CO., LTD.
Inventor： Kazuaki ABE , Yohei KAWAGUCHI
IPC: G04C10/02
Abstract: An electronic device includes a solar panel, a secondary battery, an antenna and a circuit board. The solar panel receives light to generate electric power. The secondary battery stores electric power generated by the solar panel. The antenna is disposed near the solar panel and receives electric waves with a predetermined frequency. The circuit board electrically connects the solar panel and the secondary battery. On a wiring route which is formed on the circuit board so as to electrically connect the solar panel and the secondary battery, at least one circuit element is provided so as to have high electric resistance with respect to electric waves which are received by the antenna while having low electric resistance with respect to a generated current from the solar panel.
Abstract translation: 电子设备包括太阳能电池板，二次电池，天线和电路板。 太阳能电池板接收光线以产生电力。 二次电池存储由太阳能电池板产生的电力。 天线设置在太阳能电池板附近并接收预定频率的电波。 电路板电连接太阳能电池板和二次电池。 在形成在电路板上以便电连接太阳能电池板和二次电池的布线路径上，提供至少一个电路元件以便相对于由天线接收的电波具有高电阻，而 相对于来自太阳能电池板的发电电流具有低电阻。
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公开(公告)号：US20210351596A1
公开(公告)日：2021-11-11
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: H02J7/00 , G04G19/06 , H01M10/48 , G01R19/165 , G01R31/36
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.
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9.发明申请公开(公告)号：US20210149344A1
公开(公告)日：2021-05-20
申请号：US16952892
申请日：2020-11-19
Applicant: CASIO COMPUTER CO., LTD.
Inventor： Yuta SAITO , Yohei KAWAGUCHI , Fumiaki OCHIAI
Abstract: An electronic watch includes a pointer; a stepping motor including a coil and configured to drive the pointer; a driving circuit configured to drive the stepping motor; an A/D converter configured to detect electromotive force generated in the coil due to an impact; and a CPU configured to control driving of the driving circuit. The CPU determines a direction in which the pointer is likely to be shifted, based on the electromotive force detected by the A/D converter, determines whether the pointer is shifted due to the impact, and upon determining that the pointer is shifted, corrects a position of the pointer in accordance with the direction in which the pointer is likely to be shifted.
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公开(公告)号：US20190137950A1
公开(公告)日：2019-05-09
申请号：US16181947
申请日：2018-11-06
Applicant: CASIO COMPUTER CO., LTD.
Inventor： Takashi SANO , Daisuke UEMATSU , Yohei KAWAGUCHI , Tatsumi ICHIMURA , Takumi YASUDA
Abstract: An electronic timepiece includes an exterior case, one or more circuits housed in the exterior case, wherein the one or more circuits are configured to process a signal in a radio wave having a predetermined frequency, and a bezel disposed on an outer side of the exterior case, wherein the bezel comprises a metal portion configured to resonate with the radio wave, and wherein the metal portion of the bezel is electrically connected to the one or more circuits to transmit the signal in the radio wave received by the metal portion of the bezel to the one or more circuits. A method for assembling the electronic timepiece is further provided.
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