EP 3629103 B1 20210512 - TIMEPIECE COMPRISING A MECHANICAL MOVEMENT OF WHICH THE OSCILLATION PRECISION IS REGULATED BY AN ELECTRONIC DEVICE
Title (en)
TIMEPIECE COMPRISING A MECHANICAL MOVEMENT OF WHICH THE OSCILLATION PRECISION IS REGULATED BY AN ELECTRONIC DEVICE
Title (de)
UHR, DIE EIN MECHANISCHES UHRWERK UMFASST, DESSEN GANGGENAUIGKEIT DURCH EINE ELEKTRONISCHE VORRICHTUNG REGULIERT WIRD
Title (fr)
PIÈCE D'HORLOGERIE COMPRENANT UN MOUVEMENT MÉCANIQUE DONT LA MARCHE EST RÉGULÉE PAR UN DISPOSITIF ÉLECTRONIQUE
Publication
Application
Priority
EP 18197529 A 20180928
Abstract (en)
[origin: US2020103826A1] A timepiece includes a mechanical oscillator, formed by a balance and a piezoelectric balance spring, and a control device for controlling the frequency of the mechanical oscillator. This control device is arranged to be capable of generating time-separated control pulses, each including a momentary decrease in an electrical resistance applied by the control device between two electrodes of the piezoelectric balance spring relative to a nominal electrical resistance. The control device is arranged to be capable of applying a plurality of control pulses during each time of a series of distinct correction times or without interruption in a continuous time window, in order to respectively synchronize the mechanical oscillator at a correction frequency whose value depends on a detected positive or negative temporal drift or at a desired frequency for the mechanical oscillator.
IPC 8 full level
G04C 3/04 (2006.01)
CPC (source: CN EP US)
G04B 17/063 (2013.01 - US); G04B 17/066 (2013.01 - CN); G04B 17/222 (2013.01 - US); G04B 17/227 (2013.01 - CN); G04C 3/04 (2013.01 - US); G04C 3/047 (2013.01 - CN EP)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 3629103 A1 20200401; EP 3629103 B1 20210512; CN 110967959 A 20200407; CN 110967959 B 20211102; JP 2020056784 A 20200409; JP 6854329 B2 20210407; US 11619910 B2 20230404; US 2020103826 A1 20200402
DOCDB simple family (application)
EP 18197529 A 20180928; CN 201910924692 A 20190927; JP 2019171186 A 20190920; US 201916572996 A 20190917