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AssigneeThe Swatch Group Research and Development Ltd
InventorsJerome FAVRE, Michel WILLEMIN, Jean-Jacques BORN, Dominique LECHOT, Gianni DI DOMENICO
Estimating the term…
Method for adjusting the rate of a basic oscillator of a watch arranged to oscillate at a nominal frequency N0, with a master oscillator generating an excitation frequency NE approximately equal to an integer multiple of this nominal frequency N0, the master oscillator subjecting the watch to excitation or a modulated motion during a transition phase after which the basic oscillator is stabilised at the excitation frequency NE, and a state of display correction method with a winder for mechanical or automatic watches, moving a support carrying the watch and comprising a state of display correction oscillator, having a lower variation of rate value than the initial variation of rate value DI of this basic oscillator, and oscillating at a correction frequency NC to impose oscillation or a motion on the watch, during a state of display correction phase whose duration is adjusted to exactly correct a state of display error measured at the initial moment of actuation.
A state of display correction device for correcting the state of display of a watch or respectively of a movement, said watch or respectively said movement comprising at least one basic oscillator arranged to generate oscillation at a nominal frequency N0, with an initial variation of rate value DI, wherein said state of display correction device includes a state of display correction oscillator arranged to generate oscillation at a correction frequency NC, and wherein said state of display correction device is arranged to subject said entire watch or respectively said entire movement to oscillation generated by said master oscillator, and/or to a modulated motion generated by said state of display correction oscillator, wherein said state of display correction device includes control means arranged to control the oscillation of said state of display correction oscillator and interfaced with means for measuring the state of said watch or respectively of said movement, comprised in said state of display correction device.
Dependencies are inferred from the claim text.