公开(公告)号：US20170075310A1

公开(公告)日：2017-03-16

申请号：US15122619

申请日：2014-11-18

Applicant: SEIKO INSTRUMENTS INC.

Inventor： Tamotsu MAESAWA ,  Kazumi SAKUMOTO ,  Keisuke TSUBATA ,  Tetsuya NOBE

IPC: G04C10/02 ,  H02J7/35 ,  H02S40/38

CPC classification number: G04C10/02 ,  G04G19/00 ,  G04G21/04 ,  H01L31/02021 ,  H02J7/35 ,  H02S40/38 ,  Y02E10/50

Abstract: A proposed electronic apparatus is capable of charging a secondary battery and performing data communication using a solar cell while suppressing effects of ambient light even when the intensity of light radiated to the solar cell is low. The electronic apparatus includes a control circuit 202 and a resistance 205. The control circuit 202 receives data based on an output voltage of a solar cell 201. The resistance 205 is connected between electrodes of the solar cell 201. The control circuit 202 controls a resistance value of the resistance 205 based on whether during an operation of receiving data or not.

Abstract translation: 所提出的电子设备能够对二次电池充电，并且即使当照射到太阳能电池的光的强度低时也能够使用太阳能电池进行数据通信，同时抑制环境光的影响。 电子设备包括控制电路202和电阻205.控制电路202基于太阳能电池201的输出电压接收数据。电阻205连接在太阳能电池201的电极之间。控制电路202控制电阻 基于是否在接收数据的操作期间电阻205的值。

公开(公告)号：US20140290385A1

公开(公告)日：2014-10-02

申请号：US14211759

申请日：2014-03-14

Applicant: SEIKO INSTRUMENTS INC.

Inventor： Tetsuya NOBE

IPC: G01L1/16

CPC classification number: G01L1/162 ,  G04C21/02 ,  G04G13/021

Abstract: In an electronic apparatus equipped with a mechanism for generating a sound and an oscillation, it is possible to detect an imparted shock with high sensitivity. The electronic apparatus includes: an oscillation unit; a piezoelectric element configured to impart an oscillation due to deformation in correspondence with an applied voltage to the oscillation unit, generating a voltage corresponding to deformation due to a shock imparted to the oscillation unit; an induction element for applying an increased voltage to the piezoelectric element; a first switch performing control as to whether or not to supply an electric current from a power source to the induction element; a second switch for effecting connection or disconnection between the induction element and the piezoelectric element; and a shock detection unit configured to detect a shock imparted to the oscillation unit based on the voltage generated in the piezoelectric element.

Abstract translation: 在配备有用于产生声音和振动的机构的电子设备中，可以以高灵敏度检测被赋予的冲击。 电子设备包括：振荡单元; 压电元件，被配置为根据与所施加的电压对应于所述振荡单元而产生由于变形引起的振荡，产生与由所述振荡单元施加的冲击引起的变形相对应的电压; 用于向压电元件施加增加的电压的感应元件; 第一开关执行关于是否将电流从电源提供给感应元件的控制; 用于实现感应元件和压电元件之间的连接或断开的第二开关; 以及冲击检测单元，其被配置为基于在所述压电元件中产生的电压来检测施加到所述振荡单元的冲击。

公开(公告)号：US20200313583A1

公开(公告)日：2020-10-01

申请号：US16801816

申请日：2020-02-26

Applicant: Seiko Instruments Inc.

Inventor： Tetsuya NOBE ,  Satoshi SAKAI ,  Kazumi SAKUMOTO ,  Kosuke YAMAMOTO ,  Akihito OKUMURA

IPC: H02P8/18 ,  G04C3/14

Abstract: A motor driving apparatus including a driving circuit for supplying a first pulse with which a first coil included in a two-phase stepping motor generates a first magnetic flux, a second pulse with which a second coil included in the stepping motor generates a second magnetic flux opposite to the first magnetic flux, a third pulse with which the first coil generates the second magnetic flux, and a fourth pulse with which the second coil generates the first magnetic flux, to the stepping motor. The driving circuit supplies the second pulse, the third pulse, and the fourth pulse in this order to the stepping motor in a state of being stopped to start the stepping motor, and supplies the first pulse, the second pulse, the third pulse, and the fourth pulse in this order to the stepping motor after starting to continuously drive the stepping motor.