公开(公告)号：US20200257248A1

公开(公告)日：2020-08-13

申请号：US16787242

申请日：2020-02-11

Applicant: SEIKO EPSON CORPORATION

Inventor： Toshiyuki NOZAWA

IPC: G04B47/06 ,  G04G21/02

Abstract: An electronic watch includes a display surface, a magnetic sensor including a first detection axis and a second detection axis orthogonal to the first detection axis, with the first detection axis and the second detection axis being disposed in a plane parallel to the display surface, a correction unit configured to correct an error due to an offset magnetic field included in a detection value of the magnetic sensor, a calculation unit configured to calculate a bearing and magnetic intensity, based on a value acquired by correcting the detection value by the correction unit, and a display unit configured to cause the display surface to display the bearing and the magnetic intensity that are calculated by the calculation unit to be displayed.

公开(公告)号：US20200218202A1

公开(公告)日：2020-07-09

申请号：US16736935

申请日：2020-01-08

Applicant: SEIKO EPSON CORPORATION

Inventor： Toshiyuki NOZAWA

IPC: G04B47/06 ,  G04G21/04 ,  G01C21/08 ,  G01S19/45 ,  G04R20/02

Abstract: An electronic watch includes a pointer, a receiver (GPS receiver) configured to receive positional identification information for identifying a current location, a magnetic sensor, and a controller configured to acquire destination information indicating a position of a destination, identify a direction of the destination, based on the positional identification information, an output of the magnetic sensor, and the destination information, identify a distance to the destination, based on the positional identification information and the destination information, and display a direction of the destination with the pointer. The controller switches the pointer to a set hand movement operation when the identified distance a threshold value.

公开(公告)号：US20170254647A1

公开(公告)日：2017-09-07

申请号：US15447572

申请日：2017-03-02

Applicant: Seiko Epson Corporation

Inventor： Toshiyuki NOZAWA

IPC: G01C21/00 ,  G01C17/14 ,  G04B47/06

CPC classification number: G01C21/005 ,  G01C17/14 ,  G01C21/20 ,  G04B47/06 ,  G04G3/00

Abstract: An electronic timepiece includes an indicating hand, a distance display hand, a GPS receiver that receives satellite signals transmitted from GPS satellites, a magnetic sensor, and a controller. The controller determines the direction to a destination on the basis of the satellite signals received by the GPS receiver, the output from the magnetic sensor, and destination information representing the position of the destination, determines the distance to the destination on the basis of the satellite signals and the destination information, causes the indicating hand to indicate the direction to the destination, and causes the distance display hand to display the distance to the destination.

公开(公告)号：US20130134896A1

公开(公告)日：2013-05-30

申请号：US13748272

申请日：2013-01-23

Applicant: Seiko Epson Corporation

Inventor： Toshiyuki NOZAWA

IPC: H05B37/02

CPC classification number: H05B37/02 ,  G09G3/3233 ,  G09G3/3291 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0852 ,  G09G2300/0861 ,  G09G2320/043

Abstract: A method of driving a pixel circuit is provided. The pixel circuit includes a light emitting element that emits light by receiving a driving current, a driving transistor that generates the driving current, and a light-emission control transistor of the same conductivity type as that of the driving transistor, the light-emission control transistor being arranged on a path through which the driving current flows from the driving transistor to the light emitting element. The method includes setting the gate potential of the light-emission control transistor so that the light-emission control transistor is turned on in the saturation region for a light emitting period during which the light emitting element is allowed to emit light.

Abstract translation: 提供了驱动像素电路的方法。 像素电路包括通过接收驱动电流发光的发光元件，产生驱动电流的驱动晶体管和与驱动晶体管相同的导电类型的发光控制晶体管，发光控制 晶体管布置在驱动电流从驱动晶体管流到发光元件的路径上。 该方法包括设置发光控制晶体管的栅极电位，使发光控制晶体管在允许发光元件发光的发光周期的饱和区域中导通。