Watch with annual calendar setting and method therefor
AssigneeETA SA Manufacture Horlogere Suisse
InventorPascal Lagorgette
Life of this patent
Estimating the term…
Abstract
A watch with annual calendar setting, the watch including at least one setting member configured to displace an hour hand and/or a minute hand, at least one detecting member configured to detect the date change, and at least one central processing unit configured to deduce the set date, to actuate the motor and to implement the annual calendar setting method.
Claims10
An annual or perpetual calendar setting method for a watch, the watch comprising an hour hand, a minute hand, a setting member, and processing circuitry configured to implement the annual or perpetual calendar setting method, the annual or perpetual calendar setting method comprising:
- setting a current date, including a month and a day of the month, by positioning at least one of the hour hand and the minute hand using the setting member;
- causing, by the processing circuitry, rotation of the minute hand by an amount of rotation, which is measured by the processing circuitry, that causes a date displayed by the watch to change due to the amount of rotation;
- determining, by the processing circuitry, the set current date based on the measured amount of rotation that caused the date change to occur;
- and
- storing the set current date in a memory.
An annual or perpetual calendar setting method for a watch, the watch comprising an hour hand, a minute hand, a setting member, a detecting member, and processing circuitry configured to implement the annual or perpetual calendar setting method, the annual or perpetual calendar setting method comprising:
- setting a current date by positioning at least one of the hour hand and the minute hand using the setting member;
- causing, by the processing circuitry, rotation of the minute hand by an amount of rotation that causes a date change to occur;
- determining, by the processing circuitry, the set current date based on the amount of rotation that caused the date change to occur;
- and
- storing the set current date in a memory,
- wherein the causing step comprises detecting, as the amount of rotation, a number of revolutions of the minute hand until the date change occurs, and
- the determining step comprises determining the set current date based on the detected number of revolutions.
An annual or perpetual calendar setting method for a watch, the watch comprising an hour hand, a minute hand, a setting member, a detecting member, and processing circuitry configured to implement the annual or perpetual calendar setting method, the annual or perpetual calendar setting method comprising:
- setting a current date by positioning at least one of the hour hand and the minute hand using the setting member;
- causing, by the processing circuitry, rotation of the minute hand by an amount of rotation that causes a date change to occur;
- determining, by the processing circuitry, the set current date based on the amount of rotation that caused the date change to occur;
- and
- storing the set current date in a memory,
- wherein the causing step comprises detecting, as the amount of rotation, a number of revolutions of the minute hand until the date change occurs.
Dependencies are inferred from the claim text.