Title:
RADIO CONTROLLABLE CLOCK
Document Type and Number:
WIPO Patent Application WO2003091810
Kind Code:
A3
Abstract:
The invention relates to a radio controllable clock comprising an analogue display having at least two hands each associated to a gear wheel (16, 18, 20, 22), optical means (32, 34) comprising elements for transmitting and receiving a light beam (40) for detecting a position of each hand by means for interrupting the beam path (42, 44, 82) with respect to the angular position of the gear wheels (16, 18, 20, 22), a driving unit (8, 10, 12, 14) for each gear wheel (16, 18, 20, 22) for adjusting the position of the hand in accordance with a received radio time or reset signal, and a micro-controller unit (2) for controlling the driving units (8, 10, 12, 14). The invention also relates to a method for adjusting the position of a radio controllable clock.
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| JP5086116 | Step motor for watches |
Inventors:
SHUM W K IVAN (CN)
CHAN W S (CN)
CHAN W S (CN)
Application Number:
PCT/IB2003/002885
Publication Date:
June 17, 2004
Filing Date:
April 19, 2003
Export Citation:
Assignee:
KIENZLE TIME HONG KONG LTD (CN)
SHUM W K IVAN (CN)
CHAN W S (CN)
SHUM W K IVAN (CN)
CHAN W S (CN)
International Classes:
G04C3/14; G04C13/02; G04C3/00; G04R20/00; G04R60/14; (IPC1-7): G04C11/02; G04C9/00
Domestic Patent References:
| WO1994023349A1 | 1994-10-13 |
Foreign References:
| CN1255659A | 2000-06-07 | |||
| US5898644A | 1999-04-27 | |||
| EP0180880A2 | 1986-05-14 | |||
| DE3513961A1 | 1986-10-23 | |||
| EP0308879A2 | 1989-03-29 | |||
| US5734474A | 1998-03-31 |
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