公开(公告)号：US20140219037A1

公开(公告)日：2014-08-07

申请号：US14168759

申请日：2014-01-30

Applicant: Seiko Instruments Inc.

Inventor： Makoto MITANI ,  Kotaro WATANABE

IPC: G11C29/02 ,  G11C7/10

CPC classification number: G11C29/028 ,  G11C7/1057 ,  G11C7/106 ,  G11C7/1066 ,  G11C7/222 ,  G11C29/021

Abstract: Provided is a semiconductor non-volatile memory device capable of improving the accuracy of trimming by creating a written state before data is written into a non-volatile memory element. The semiconductor non-volatile memory device includes: a written data transmission circuit for transmitting written data to a non-volatile memory element; a first switch connected between the non-volatile memory element and a data output terminal; a third switch connected to an output terminal of the written data transmission circuit; and a control circuit for controlling the respective switches. When a test mode signal is input, the control circuit turns on only the first switch and the third switch so as to control the written data to be output to the data output terminal before data is written into the non-volatile memory element.

Abstract translation: 提供一种半导体非易失性存储器件，其能够在将数据写入非易失性存储元件之前通过创建写入状态来提高修整精度。 半导体非易失性存储器件包括：写入数据传输电路，用于将写入的数据发送到非易失性存储器元件; 连接在所述非易失性存储元件与数据输出端子之间的第一开关; 连接到写入数据传输电路的输出端的第三开关; 以及用于控制各个开关的控制电路。 当输入测试模式信号时，控制电路仅打开第一开关和第三开关，以便在将数据写入非易失性存储元件之前控制写入数据输出到数据输出端。

公开(公告)号：US20130250741A1

公开(公告)日：2013-09-26

申请号：US13785412

申请日：2013-03-05

Applicant: SEIKO INSTRUMENTS INC.

Inventor： Makoto MITANI ,  Kotaro WATANABE

IPC: G04G3/00

CPC classification number: G04G3/00 ,  G04G19/04

Abstract: The analog electronic watch includes: a crystal oscillator; an oscillator circuit; a frequency divider circuit; an output control circuit; a constant voltage circuit; and a cell. The constant voltage circuit and the output control circuit are powered from the cell. The oscillator circuit and the frequency divider circuit are powered from the constant voltage circuit. The constant voltage circuit is capable of outputting a first constant voltage and a second constant voltage in a switchable manner. The second constant voltage is a voltage which is equal to or lower than a cell voltage. The first constant voltage is a voltage which is smaller than the second constant voltage. The constant voltage is switched to the second constant voltage in a period of outputting the motor drive pulse.

Abstract translation: 模拟电子手表包括：晶振; 振荡电路; 分频器电路; 输出控制电路; 恒压电路; 和一个单元格。 恒压电路和输出控制电路由电池供电。 振荡电路和分频电路由恒压电路供电。 恒压电路能够以可切换的方式输出第一恒定电压和第二恒定电压。 第二恒定电压是等于或低于电池电压的电压。 第一恒定电压是小于第二恒定电压的电压。 在输出电动机驱动脉冲的期间，将恒定电压切换到第二恒定电压。

公开(公告)号：US20150260802A1

公开(公告)日：2015-09-17

申请号：US14656163

申请日：2015-03-12

Applicant: SEIKO INSTRUMENTS INC.

Inventor： Makoto MITANI ,  Kotaro WATANABE

IPC: G01R31/40 ,  G01R19/155

CPC classification number: G01R31/40 ,  G01R19/0084

Abstract: To provide a voltage detection circuit in which the influence on a detection voltage by semiconductor manufacturing variations is small and which is small in current consumption. A voltage detection circuit is provided which detects a voltage, based on an output signal of a detection circuit and outputs a detection signal. The detection circuit includes a first MOS transistor unit which allows a first current to flow, a second MOS transistor unit which allows a second current to flow, and a current voltage conversion unit which converts each of the first current and the second current into a voltage and outputs the same as the detection signal. A voltage characteristic of the first current and a voltage characteristic of the second current are configured so as to be crossed with each other at a predetermined voltage.

Abstract translation: 提供一种电压检测电路，其中通过半导体制造变化对检测电压的影响小并且电流消耗小。 提供一种电压检测电路，其基于检测电路的输出信号检测电压并输出检测信号。 检测电路包括允许第一电流流动的第一MOS晶体管单元，允许第二电流流动的第二MOS晶体管单元和将第一电流和第二电流中的每一个转换成电压的电流电压转换单元 并输出与检测信号相同的值。 第一电流的电压特性和第二电流的电压特性被构造成以预定电压彼此交叉。

公开(公告)号：US20150162091A1

公开(公告)日：2015-06-11

申请号：US14551725

申请日：2014-11-24

Applicant: Seiko Instruments Inc.

Inventor： Kotaro WATANABE ,  Makoto MITANI

IPC: G11C16/28

CPC classification number: G11C16/28 ,  G11C16/225

Abstract: The present invention provides a data reading device capable of preventing erroneous writing during an operation of reading data from a non-volatile memory element. The data reading device includes a dummy reading circuit provided with a non-volatile memory element, the writing voltage of which is lower than that of a non-volatile memory element of a data reading circuit, and a state detection circuit that detects a written state of the non-volatile memory element of the dummy reading circuit. Upon detection of erroneous writing to the non-volatile memory element of the dummy reading circuit during a data reading operation, the data reading operation is immediately terminated.

Abstract translation: 本发明提供一种能够防止在从非易失性存储元件读取数据的操作期间错误写入的数据读取装置。 数据读取装置包括具有写入电压低于数据读取电路的非易失性存储元件的非易失性存储元件的虚拟读取电路，以及检测写入状态的状态检测电路 的虚拟读取电路的非易失性存储元件。 在数据读取操作期间检测到伪读取电路的非易失性存储元件的错误写入时，数据读取操作立即结束。

公开(公告)号：US20140240054A1

公开(公告)日：2014-08-28

申请号：US14188379

申请日：2014-02-24

Applicant: Seiko Instruments Inc.

Inventor： Kotaro WATANABE ,  Makoto MITANI

IPC: H03K5/19

CPC classification number: H03K5/19 ,  G01R29/02

Abstract: Provided is an oscillation stop detection circuit having low current consumption, which is capable of detecting stop of oscillation regardless of whether an input signal stops at High or Low and thereby accurately measuring an oscillation stop detection period. The oscillation stop detection circuit includes: a pulse generation circuit for outputting a one-shot pulse in synchronization with an oscillation signal input from an input terminal; a capacitor including one terminal connected to a first power supply terminal and another terminal connected to an output terminal; a constant current circuit connected between the first power supply terminal and the another terminal of the capacitor; and a switch circuit connected between an output terminal of the pulse generation circuit and the another terminal of the capacitor, for connecting the another terminal of the capacitor to a second power supply terminal based on the one-shot pulse.

Abstract translation: 提供一种具有低电流消耗的振荡停止检测电路，无论输入信号是停止在高还是低，从而能够精确地测量振荡停止检测周期，其能够检测振荡停止。 振荡停止检测电路包括：脉冲发生电路，用于与从输入端子输入的振荡信号同步地输出单触发脉冲; 电容器，包括连接到第一电源端子的一个端子和连接到输出端子的另一个端子; 连接在所述第一电源端子和所述电容器的另一端子之间的恒流电路; 以及连接在所述脉冲发生电路的输出端子和所述电容器的另一端子之间的开关电路，用于基于所述单触发脉冲将所述电容器的另一端子连接到第二电源端子。