EP 1346264 A1 20030924 - ANALOG ELECTRONIC WATCH HAVING A TIME RESET DEVICE FOLLOWING POWER SHORTAGE
Title (en)
ANALOG ELECTRONIC WATCH HAVING A TIME RESET DEVICE FOLLOWING POWER SHORTAGE
Title (de)
ANALOGE ELEKTRONISCHE UHR MIT VORRICHTUNG ZUR ZEITKORREKTUR NACH EINER MANGELHAFTEN ENERGIEZUFUHR
Title (fr)
MONTRE ELECTRONIQUE ANALOGIQUE AYANT UN DISPOSITIF DE REMISE A L'HEURE SUITE A UNE INSUFFISANCE D'ALIMENTATION
Publication
Application
Priority
- EP 01985360 A 20011129
- EP 0114208 W 20011129
- EP 00204579 A 20001218
Abstract (en)
[origin: EP1215545A1] The motor stop system (14) is actuated by a first step level voltage (VS1) at the detection of insufficient supply to the motor (3) and remains actuated until a second greater voltage level (VS2) has been reached by the supply source. This second level corresponds to a set charge level for the supply source (9). The motor stop system is actuated for a time period sufficient to avoid the effects of load variation on the supply source for detection of low voltage. Electronic watch including an analogue display with hands (2) driven by a motor (3), a time base (4) controlling the motor drive (8), a rechargeable supply source (9) a motor stop system (14) and time counter (18) synchronized with the display for sufficient supply voltage. When an insufficient voltage supply is detected by the motor step system (14), the display system (1) is stopped and the corresponding value of the counting system (18) is stored in memory (19). The time counter (18) continues to operate. A time difference calculator (20) sends, as soon as the supply voltage reaches a sufficient level, a time difference signal (21), between the memorized value and the counter, to the motor drive (8) to reset the analogue display time.
IPC 1-7
IPC 8 full level
G04G 99/00 (2010.01); G04C 3/14 (2006.01); G04C 9/08 (2006.01); G04C 10/04 (2006.01); G04G 19/08 (2006.01)
CPC (source: EP KR US)
G04G 19/08 (2013.01 - EP US); G04G 99/00 (2013.01 - KR)
Citation (search report)
See references of WO 0250617A1
Designated contracting state (EPC)
CH DE FR GB LI
DOCDB simple family (publication)
EP 1215545 A1 20020619; CN 1222850 C 20051012; CN 1481520 A 20040310; DE 60129738 D1 20070913; DE 60129738 T2 20080430; EP 1346264 A1 20030924; EP 1346264 B1 20070801; JP 2004516482 A 20040603; JP 4554884 B2 20100929; KR 100880347 B1 20090128; KR 20030059313 A 20030707; US 2004027925 A1 20040212; US 6934223 B2 20050823; WO 0250617 A1 20020627
DOCDB simple family (application)
EP 00204579 A 20001218; CN 01820740 A 20011129; DE 60129738 T 20011129; EP 0114208 W 20011129; EP 01985360 A 20011129; JP 2002551651 A 20011129; KR 20037007502 A 20030605; US 45085303 A 20030618