EP 0064023 B1 19850515 - TIME CORRECTING MEANS FOR AN ELECTRONIC CLOCK
Title (en)
TIME CORRECTING MEANS FOR AN ELECTRONIC CLOCK
Publication
Application
Priority
CH 146381 A 19810305
Abstract (en)
[origin: US4398831A] The watch comprises an oscillator, a frequency divider, display means capable of displaying at least hours and minutes, and a correction circuit controlled by a rotary time setting stem which is capable of assuming at least two axial positions, one being a rest position which is occupied by the stem when the watch is functioning normally and an operative position for jointly correcting the minutes display and the hours display. The correction circuit is so arranged as to provide for correction of hours display alone in response to a particular rotary movement of the stem in its rest position. This particular rotary movement may comprise, in regard to the stem, rotating at least through a minimum angle in a time interval which is less than a predetermined period, for example at least two revolutions in less than two seconds. The minutes and hours displays are changed and the hours display is corrected in the forward direction or the backward direction depending on the direction of rotation of the stem.
IPC 1-7
IPC 8 full level
G04C 9/08 (2006.01); G04C 3/00 (2006.01); G04C 9/00 (2006.01); G04G 5/00 (2013.01); G04G 9/00 (2006.01)
CPC (source: EP US)
G04C 3/007 (2013.01 - EP US); G04G 5/00 (2013.01 - EP US); G04G 9/0076 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 0064023 A1 19821103; EP 0064023 B1 19850515; CH 643427 B; CH 643427G A3 19840615; DE 3263480 D1 19850620; HK 29488 A 19880429; JP H0137716 B2 19890809; JP S57158578 A 19820930; US 4398831 A 19830816
DOCDB simple family (application)
EP 82810065 A 19820212; CH 146381 A 19810305; DE 3263480 T 19820212; HK 29488 A 19880421; JP 3183582 A 19820302; US 35238082 A 19820225