Electronic timepiece and movement

Patent metadata

Field	Value
Publication number	US-9519273-B2
Application number	US-201514632479-A
Country	US
Kind code	B2
Filing date	Feb 26, 2015
Priority date	Mar 6, 2014
Publication date	Dec 13, 2016
Grant date	Dec 13, 2016

Abstract

An electronic timepiece has a display device that displays display information, a drive mechanism that drives the display device, a crown that can perform a rotary operation, and a control device that corrects the display information displayed on the display device by the rotary operation of the crown. The control device has a single correction mode and a continuous correction mode which are selected by the rotary operation of the crown. In the single correction mode, a single correction signal is output to the drive mechanism so that the display device is corrected as much as a single correction quantity. In the continuous correction mode, a continuous correction signal is output to the drive mechanism so that the display device is corrected as much as a continuous correction quantity. The continuous correction quantity is set depending on types of the display information to be corrected in the continuous correction mode.

First claim

What is claimed is:

1. An electronic timepiece comprising:
a display unit that displays measurement information;
a drive mechanism that drives the display unit;
an operation member that is rotarily operated; and
a control unit that corrects the measurement information displayed on the display unit in accordance with the rotary operation of the operation member;
wherein the control unit has a single-measurement correction mode and a continuous-measurement correction mode that are selectable by the rotary operation of the operation member;
wherein in the single-measurement correction mode, a single correction signal is output to the drive mechanism so that the measurement information on the display unit is corrected by a single measurement unit;
wherein in the continuous-measurement correction mode, a continuous correction signal is output to the drive mechanism so that the measurement information on the display unit is corrected by continuously altering the measurement information in continuous measurement units up to a maximum of a continuous correction quantity, and
wherein the continuous correction quantity is set depending on the type of the measurement information to be corrected in the continuous correction mode.

2. The electronic timepiece according to claim 1 , wherein:
rotary operation is detected if the operation member is rotated by a predetermined angle in a first direction or in a second direction opposite the first direction;
the control unit selects the single-measurement correction mode if rotary operation is detected once within a predetermined time period; and
the control unit selects the continuous-measurement correction mode if multiple rotary operations are consecutively detected in a single one of said first or second direction within the predetermined time period.

3. The electronic timepiece according to claim 1 , wherein:
the display unit has a predefined, maximum displayable range for each type of measurement information; and
the control unit sets the continuous correction quantity to the maximum displayable range of the type of measurement information that is to be corrected in the continuous correction mode.

4. The electronic timepiece according to claim 1 , wherein:
a first type of measurement information can be corrected by incrementing and decrementing its displayed measurement information;
a second type of measurement information can be corrected only by incrementing its displayed measurement information;
a third type of measurement information can be corrected only by decrementing its displayed measurement information;
the control unit sets the continuous correction quantity equal to a value of one if the type of measurement information to be corrected in the continuous correction mode is of the second type or third type.

5. The electronic timepiece according to claim 1 , wherein:
the display unit has a predefined, maximum displayable range for each type of measurement information; and
the control unit sets the continuous correction quantity to a value of one if the type of measurement information to be corrected in the continuous correction mode has a maximum displayable range that is equal to or smaller than a preset setting value.

6. The electronic timepiece according to claim 1 , wherein:
the display unit has a predefined, maximum displayable range for each type of measurement information; and
the control unit sets the continuous correction quantity to a value of one if a preset time period for correcting the measurement information from its lowest value to its maximum displayable value is equal to or shorter than a preset setting time period.

7. The electronic timepiece according to claim 1 ,
wherein the control unit sets the continuous correction quantity to a value of one if the type of measurement information to be corrected in the continuous correction mode is any one of a type of measurement information dependent upon receiving a satellite signal, a type of measurement information whose consecutive unit changes are not constant, and a type of measurement information has no continuity.

Assignees

• Seiko Epson Corp

Inventors

• Nishijima Hirokazu

Classifications

• G04R20/02

  the radio signal being sent by a satellite, e.g. GPS · CPC title

• G04G9/0076

  in which the time in another time-zone or in another city can be displayed at will · CPC title

• G04C9/08 Primary

  by electric drive · CPC title

• G04G5/04

  by setting each of the displayed values, e.g. date, hour, independently · CPC title

• G04G9/00 Primary

  Visual time or date indication means · CPC title