公开(公告)号：US20180292790A1

公开(公告)日：2018-10-11

申请号：US15933850

申请日：2018-03-23

Applicant: Seiko Instruments Inc.

Inventor： Kazumi SAKUMOTO

IPC: G04C9/08 ,  G04C3/14 ,  G04C99/00

CPC classification number: G04C9/08 ,  G04C3/14 ,  G04C3/143 ,  G04C3/146 ,  G04C99/00

Abstract: A timepiece includes a motor control unit driving a motor for driving an indicating hand, based on an instruction signal, and a control unit receiving an instruction confirmation signal corresponding to a drive state of the motor in response to the instruction signal from the motor control unit, and determining whether or not the motor is driven in accordance with the instruction signal, based on the instruction confirmation signal.

公开(公告)号：US20160342139A1

公开(公告)日：2016-11-24

申请号：US15072749

申请日：2016-03-17

Applicant: SEIKO INSTRUMENTS INC.

Inventor： Kazumi SAKUMOTO

IPC: G04C3/14 ,  H03L7/18

CPC classification number: G04G3/02

Abstract: A frequency division circuit includes a first frequency division circuit which divides a frequency of a reference signal that is generated by an oscillation circuit; an input and output terminal from which an output signal of the first frequency division circuit is output to the outside; a selection circuit which outputs one of a first intermediate signal that is one of a signal which is output to the input and output terminal and a signal which is input from the input and output terminal, and a second intermediate signal that is an output signal of the first frequency division circuit, as an intermediate signal; a second frequency division circuit which divides a frequency of the intermediate signal; and a switching time count circuit which counts a predetermined amount of time after startup of the frequency division circuit, and switches the intermediate signal that is output from the selection circuit from the first intermediate signal to the second intermediate signal, after the predetermined amount of time passes.

Abstract translation: 分频电路包括：第一分频电路，其分频由振荡电路产生的参考信号的频率; 第一分频电路的输出信号从其输出到外部的输入和输出端子; 输出作为输入到输出端子的输出信号之一的第一中间信号和从输入输出端子输入的信号之一的选择电路和作为输入输出端子的输出信号的第二中间信号 第一分频电路作为中间信号; 第二分频电路，其分割所述中间信号的频率; 以及切换时间计数电路，其在分频电路启动之后对预定的时间量进行计数，并且在预定时间量之后将从选择电路输出的中间信号从第一中间信号切换到第二中间信号 通过

公开(公告)号：US20160080076A1

公开(公告)日：2016-03-17

申请号：US14854947

申请日：2015-09-15

Applicant: SEIKO INSTRUMENTS INC.

Inventor： Tomohiro IHASHI ,  Kenji OGASAWARA ,  Akira TAKAKURA ,  Kazumi SAKUMOTO ,  Tamotsu MAESAWA ,  Kazuhiro KOYAMA ,  Kosuke YAMAMOTO ,  Ayumi MATSUMOTO

IPC: H04B10/079 ,  H04B10/116

CPC classification number: H04B10/116 ,  H04B10/1141

Abstract: To receive data normally in communication by an optical signal by an electronic device which transmits data even when a transmission frequency differs. An electronic device transmits a transmission-frequency measurement signal for measuring a transmission frequency of data and transmits the data by using a light source which transmits an optical signal. An electronic timepiece specifies the transmission frequency of data based on the transmission-frequency measurement signal received by a solar battery which receives the optical signal and receiving the data by the solar battery based on the specified transmission frequency.

Abstract translation: 即使在发送频率不同的情况下，也可以通过发送数据的电子设备通过光信号正常接收数据。 电子设备发送用于测量数据的发送频率的发送频率测量信号，并通过使用发送光信号的光源发送数据。 电子钟表基于由太阳能电池接收的发送频率测量信号指定数据的发送频率，该太阳能电池接收光信号并基于指定的发送频率接收太阳能电池的数据。