Updating device and method therefor
AssigneeETA SA Manufacture Horlogere Suisse
InventorPascal Lagorgette
Life of this patent
Estimating the term…
Abstract
A method for updating (500) the date for a watch implemented by an updating device (100). The updating method (500) including storing in memory the current date (171) according to a perpetual calendar programmed on a time zone (175), receiving a second signal (181) before verifying a first signal (131) after having received the second signal (181). A comparison is carried out between the second signal (181) and the current date (171) in order to control the driving of at least one date-disc (120) with a drive member (160) if the second portion (127) is different from the current date (171) until the first sensor (130) detects a first portion (126) of the at least one date-disc (120).
Claims10
A device for updating a current date for a watch, said updating device comprising:
- a memory configured to transmit the current date according to a perpetual calendar;
- at least one date-disc including a first portion, representing dates 1 to 28, and a second portion representing dates 29 to 31;
- a first sensor configured to transmit a first signal only when said first sensor detects said second portion;
- a drive member configured to drive said at least one date-disc;
- a second sensor configured to transmit a second signal when said second sensor detects the driving of said at least one date-disc by said drive member;
- and
- a central unit configured to receive said second signal before comparing said first signal with the current date and controlling the driving of said at least one date-disc with said drive member if said second portion is different from the current date until said first sensor no more transmits the first signal.
Dependencies are inferred from the claim text.