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US 7,027,360 B2Granted
Electronic timepiece with a date display function
AssigneeSeiko Epson Corporation
InventorsJoji Kitahara, Jun Matsuzaki
Life of this patent
Estimating the term…
Abstract
An electronic timepiece with date display function reduces power consumption in conjunction with the user adjusting the date, and makes it easier for the user to set the date. A displayed date detection unit H has a day detector H1 for detecting the displayed day, a month detector H2 for detecting the displayed month, and a year detector H3 for detecting the displayed year. A control unit A controls a calendar mechanism drive unit F according to the date detected by detectors H1 to H3.
Claims9
An electronic timepiece with a date display function, comprising:
- a power supply;
- an actuator driven by the power supply;
- a day display means for displaying a calendar day, wherein the day display means is driven by the actuator during a normal date display mode and is driven by a user-manipulatable manual operator during a calendar-correction mode;
- a month display means driven by the day display means for displaying a calendar month;
- a year display means driven by the day display means for displaying a calendar year;
- a date detecting means for detecting the day displayed by the day display means, the month displayed by the month display means, and the year displayed by the year displaying means;
- and
- a control means for determining from the detected day, month, and year if the day displayed by the day display means is a non-existent date on a calendar year, and, if the displayed date is a non-existent date, then controlling the actuator to drive the day display means until an existing date is displayed.
5 more elements
An electronic timepiece with a date display function, comprising:
- a power supply;
- an actuator driven by the power supply;
- a day display means for displaying a calendar day, wherein the day display means is driven by the actuator during a normal date display mode and is driven by a user-manipulatable operator during a calendar correction mode;
- a year-month display means driven by the day display means for displaying a number of years since a previous leap year and a calendar month;
- a date detecting means for detecting the day displayed by the day display means, the number of years since a previous leap year, and the calendar month displayed by the year-month displaying means;
- and
- a control means for determining from the detected day, years since a previous leap year, and month if the day displayed by the day display means is a non-existent date on a calendar, and if the displayed date is a non-existent date then controlling the actuator to drive the day display means until an existing date is displayed.
4 more elements
An electronic timepiece with a date display function, comprising:
- a power supply;
- an actuator driven by the power supply;
- a day displayer for displaying a calendar day, wherein the day displayer is driven by the actuator during a normal date display mode and is driven by a user-manipulatable manual operator during a calendar-correction operation;
- a month displayer driven by the day displayer for displaying a calendar month;
- a year displayer driven by the day displayer for displaying a calendar year;
- a date detector for detecting the day displayed by the day displayer, the month displayed by the month displayer;
- and the year displayed by the year displayer and
- a controller for determining from the detected day, month, and year if the day displayed by the day displayer is a non-existent date on a calendar year, and, if the displayed date is a non-existent date, then controlling the actuator to drive the day displayer until an existing date is displayed.
5 more elements
An electronic timepiece with a date display function, comprising:
- a power supply;
- an actuator driven by the power supply;
- a day displayer for displaying a calendar day, wherein the day displayer is driven by the actuator during a normal date display operation and is driven by a user-manipulatable operator during a calendar-correction mode;
- a year-month displayer driven by the day displayer for displaying a number of years since a previous leap year and a calendar month;
- a date detector for detecting the day displayed by the day displayer, the number of years since a previous leap year, and the calendar month displayed by the year-month displayer;
- and
- a controller for determining from the detected day, years since a previous leap year, and month if the day displayed by the day displayer is a non-existent date on a calendar, and if the displayed date is a non-existent date then controlling the actuator to drive the day displayer until an existing date is displayed.
4 more elements
A method of implementing a date display function in an electronic timepiece, said method comprising:
- providing a power supply;
- providing an actuator driven by the power supply;
- providing a day displayer for displaying a calendar day, permitting the day displayer to be optionally driven by the actuator during a normal date display mode and by a user-manipulatable manual operator during a calendar-correction mode;
- providing a month displayer driven by the day displayer for displaying a calendar month;
- providing a year displayer driven by the day displayer for displaying a calendar year;
- detecting the day displayed by the day displayer, the month displayed by the month indicator, and the year displayed by the year displayer;
- and
- determining from the detected day, month, and year if the day displayed by the day displayer is a non-existent date on a calendar year, and, if the displayed date is a non-existent date, then controlling the actuator to drive the day displayer until an existing date is displayed.
5 more elements
A method of implementing a date display function in an electronic timepiece, said method comprising:
- providing a power supply;
- providing an actuator driving by the power supply;
- providing a day displayer for displaying a calendar day, permitting the day displayer to be optionally driven by the actuator during a normal date display operation and by a user-manipulatable operator during a calendar-correction mode;
- providing a year-month displayer driven by the day displayer for displaying a number of years since a previous leap year and a calendar month;
- detecting the day displayed by the day displayer, the number of years since a previous leap year, and the calendar month displayed by the year-month displayer;
- and
- determining from the detected day, years since a previous leap year, and month if the day displayed by the day displayer is a non-existent date on a calendar, and if the displayed date is a non-existent date then controlling the actuator to drive the day displayer until an existing date is displayed.
4 more elements
Dependencies are inferred from the claim text.