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公开(公告)号：US11316454B2
公开(公告)日：2022-04-26
申请号：US17004363
申请日：2020-08-27
Applicant: Seiko Instruments Inc.
Inventor： Akihito Okumura , Kosuke Yamamoto , Kenji Ogasawara , Tomohiro Ihashi
Abstract: A stepping motor control device is configured to drive a stepping motor by applying a normal drive pulse or a fixed pulse having an energy larger than that of the normal drive pulse. The stepping motor control device includes a determination unit configured to, based on whether or not a pulse applied to the stepping motor before the normal drive pulse is the fixed pulse, determine whether or not to add a degaussing pulse is applied to the normal drive pulse, the degaussing pulse being a pulse for canceling a residual magnetic flux generated in a stator of the stepping motor when the fixed pulse; and a drive control unit configured to, based on a determination result of the determination unit, drive the stepping motor with the normal drive pulse to which the degaussing pulse is added.
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2.发明授权公开(公告)号：US10132627B2
公开(公告)日：2018-11-20
申请号：US14543946
申请日：2014-11-18
Applicant: SEIKO INSTRUMENTS INC.
Inventor： Keisuke Tsubata , Kazuo Kato , Tomohiro Ihashi , Takanori Hasegawa , Hisao Nakamura , Katsuya Mugishima , Akira Takakura
Abstract: An electronic device has a storage unit that stores unit information relating to movement with respect to each of an elevating state and a horizontal movement state and an altitude measurement unit that measures a series of altitudes. An altitude change determination unit determines whether the movement is the elevating state or not using a first determination section having a first altitude range based on a first set of altitudes within the measured series of altitudes, and determines whether the movement is the horizontal movement state or not using a second determination section having a second altitude range smaller than the first altitude range and based on a second set of altitudes within the measured series of altitudes. A movement distance calculator reads from the storage unit the unit information corresponding to the state determined by the determination unit and calculates a movement distance based on the read unit information.
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公开(公告)号：US10067480B2
公开(公告)日：2018-09-04
申请号：US15035691
申请日：2014-10-17
Applicant: SEIKO INSTRUMENTS INC.
Inventor： Kenji Ogasawara , Akira Takakura , Kazumi Sakumoto , Tamotsu Maesawa , Kazuhiro Koyama , Tomohiro Ihashi , Kosuke Yamamoto , Ayumi Matsumoto
Abstract: An electronic device includes at least an acquisition unit, an input unit, a time correction amount calculation unit, and a transmitting unit. A timepiece includes at least a receiving unit, a power storage unit, a drive unit, and a control unit. The input unit receives an input of the time displayed by the display unit of the timepiece. The time correction amount calculation unit calculates a time correction amount for correcting the time of the timepiece from a difference between the time, the input of which is received by the input unit and the current time acquired by the acquisition unit. The transmitting unit transmits the time correction amount to the timepiece by using light. The receiving unit receives the time correction amount. The power storage unit stores electricity by using power converted from the light. The drive unit drives the indicating hand. The control unit corrects the time displayed by the indicating hand, based on the time correction amount received by the receiving unit. The control unit controls a power storage period in the power storage unit and a receiving period in the receiving unit so as to receive the time correction amount in the receiving period.
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公开(公告)号：US09971304B2
公开(公告)日：2018-05-15
申请号：US15237896
申请日：2016-08-16
Applicant: SEIKO INSTRUMENTS INC.
Inventor： Satoshi Sakai , Katsuya Mugishima , Tomohiro Ihashi , Kenji Ogasawara
Abstract: A timepiece movement includes a second light emitting element, a second light receiving element, and a second wheel & pinion that drives a second hand and that has a first second wheel transmittable portion and a second second wheel transmittable portion through which light is transmittable, A control unit detects a position of the second wheel & pinion by causing the second light receiving element to receive the transmitted light emitted from the second light emitting element and transmitted through the first second wheel transmittable portion or the second second wheel transmittable portion, and a second detection wheel has a second detection wheel transmittable portion through which the transmitted light is transmittable. The control unit detects a transmitting time point at which the transmitted light is transmitted through the first second wheel transmittable portion or concurrently through the second second wheel transmittable portion and the second detection wheel transmittable portion. After the transmitting time point, when the second detection wheel transmittable portion is located at other positions except for a second detection position where the second detection wheel transmittable portion is located at the transmitting time point, the control unit causes the second light emitting element to stop light emitting.
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公开(公告)号：US09546882B2
公开(公告)日：2017-01-17
申请号：US14424962
申请日：2013-09-03
Applicant: SEIKO INSTRUMENTS INC. , ASICS Corporation
Inventor： Akira Takakura , Hiroshi Shimizu , Tomohiro Ihashi , Keisuke Tsubata , Takehiro Tagawa , Ryota Shinayama , Youzou Kajita
CPC classification number: G01C22/006 , A43B3/0005
Abstract: An electronic apparatus includes a sensor, a body that is provided separately from and is not incorporated to a shoe worn by a user, and a processing circuit provided on the body. The processing circuit obtains, based on a detection result of the sensor, a number of steps taken by the user during traveling while wearing the shoe, and calculates a wear degree, indicating a degree to which the shoe of the user is worn out, based on the number of steps.
Abstract translation: 电子设备包括传感器，与用户佩戴的鞋分开设置并且不结合到鞋身中的主体以及设置在身体上的处理电路。 处理电路基于传感器的检测结果，获得使用者在穿着鞋时行进期间所采取的步骤数，并计算表示使用者鞋的磨损程度的磨损程度 在步数上。
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Patent Agency Ranking
公开(公告)号：US10712712B2
公开(公告)日：2020-07-14
申请号：US15867307
申请日：2018-01-10
Applicant: SEIKO INSTRUMENTS INC.
Inventor： Satoshi Sakai , Tomohiro Ihashi
Abstract: A timepiece capable of selecting a timepiece mode and a chronograph mode includes an hour hand and a minute hand which indicate current time in a case where the timepiece mode is, selected. A main control unit performs control so as to start measuring time by simultaneously starting hand operations of the hour hand and the minute hand in a case where the chronograph mode is selected. When the hand operation of one of the hands is stopped, the control unit performs control so as to indicate the time when the hand operation of the one hand is stopped, and to continue to measure the time by continuing the hand operation of the other hand.
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公开(公告)号：US09092015B2
公开(公告)日：2015-07-28
申请号：US13738073
申请日：2013-01-10
Applicant: Seiko Instruments Inc.
Inventor： Kazuo Kato , Akira Takakura , Tomohiro Ihashi , Takanori Hasegawa , Toshitaka Fukushima
Abstract: There is provided an electronic timepiece that includes a solar panel which receives light to generate electric power, is operated with the electric power supplied from a secondary battery charged with output voltage of the solar panel, and includes a normal mode in which clock display is performed on a display unit and a power saving mode in which clock display on the display unit is stopped, based on illuminance detection of the solar panel, the electronic timepiece including: a mode control unit which switches cycles of the illuminance detection, by setting a cycle of the illuminance detection of the normal mode as a first cycle (for example, one minute), and a cycle of the illuminance detection of the power saving mode as a second cycle (for example, two seconds).
Abstract translation: 提供了一种电子钟表，其包括接收光以产生电力的太阳能电池板，利用从充电了太阳能电池板的输出电压的二次电池供电的电力进行操作，并且包括执行时钟显示的正常模式 在基于太阳能面板的照度检测的显示单元和显示单元的时钟显示停止的省电模式下，电子钟表包括：模式控制单元，其通过设置周期来切换照度检测的周期 作为第一周期（例如，一分钟）的正常模式的照度检测的周期，以及作为第二周期（例如两秒）的省电模式的照度检测的周期。
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公开(公告)号：US09036455B2
公开(公告)日：2015-05-19
申请号：US13738059
申请日：2013-01-10
Applicant: Seiko Instruments Inc.
Inventor： Kazuo Kato , Akira Takakura , Tomohiro Ihashi , Takanori Hasegawa , Toshitaka Fukushima
IPC: G04G19/06
Abstract: An electronic timepiece is operated with a power-supply voltage from a secondary battery charged with a voltage from a solar panel. An oscillation circuit generates and supplies a clock signal to a CPU when the voltage charged to the battery is lower than a first voltage. A reset circuit resets the CPU when the voltage charged to the battery does not exceed a second voltage higher than the first voltage, and cancels the reset of the CPU when the voltage charged to the second battery exceeds the second voltage. The CPU starts an operation when the voltage charged to the secondary battery exceeds the second voltage and the reset is cancelled, and performs a time-of-day display on a display unit when the voltage charged to the secondary battery is equal to or higher than a third voltage higher than the second voltage.
Abstract translation: 电子计时器由来自太阳能电池板的电压的二次电池的电源电压进行动作。 当电池充电的电压低于第一电压时，振荡电路产生并向CPU提供时钟信号。 当电池充电的电压不超过第一电压的第二电压时，复位电路复位CPU，并且当第二电池充电的电压超过第二电压时，复位CPU。 当充电到二次电池的电压超过第二电压并且复位被取消时，CPU开始操作，并且当二次电池充电的电压等于或高于时，在显示单元上执行日时显示 第三电压高于第二电压。
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公开(公告)号：US10180662B2
公开(公告)日：2019-01-15
申请号：US15175455
申请日：2016-06-07
Applicant: SEIKO INSTRUMENTS INC.
Inventor： Kenji Ogasawara , Tomohiro Ihashi
Abstract: An electronic timepiece includes a first display unit and a second display unit that display time. A receiving unit receives a time modification command including time information for modifying a first time displayed by the first display unit. A control unit outputs a first change command for automatically changing the first time displayed by the first display unit into a modified time different from a second time displayed by the second display unit based on the received time information, and outputs a second change command for changing the second time displayed by the second display unit into the first time displayed by the first display unit before the first time is changed into the modified time. A display drive unit changes the first time and the second time based on the first change command and the second change command, respectively, from the control unit.
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公开(公告)号：US10037009B2
公开(公告)日：2018-07-31
申请号：US15237881
申请日：2016-08-16
Applicant: SEIKO INSTRUMENTS INC.
Inventor： Katsuya Mugishima , Satoshi Sakai , Kenji Ogasawara , Tomohiro Ihashi
IPC: G04C3/14
Abstract: A power saving movement includes a center wheel and pinion driving a minute hand and minute detection wheel. A gear ratio of the center wheel/pinion with respect to the minute detection wheel is 1/M. The minute detection wheel has N minute detection portions which are disposed on the same rotation trajectory as the center wheel & pinion. N and M are integers. The minute detection wheel transmittable portions are disposed at an interval of 360°/N. A pair of the center wheel transmittable portions are disposed in parallel at an unequal angular interval of a center axle of the center wheel & pinion. An angular interval of the center wheel transmittable portions adjacent to each other in the circumferential direction of the center axle of the center wheel & pinion is set to magnification of 360°/(M×N).
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