| Patents for G04C 3 - Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means (4,122) |
|---|
| 11/07/1984 | EP0123807A2 Driving and detection of back EMF in permanent magnet step motors |
| 10/30/1984 | US4480218 Direct detection of back EMF in permanent magnet step motors |
| 10/30/1984 | US4479723 Analog electronic timepiece drive circuitry for energizing stepping motor drive coil in full and intermediate excitation states, and method therefor |
| 10/23/1984 | US4478524 Arrangement of analog-type electronic wristwatch |
| 10/16/1984 | US4477759 Stepping motor unit |
| 10/16/1984 | US4477196 Analog electronic timepiece |
| 10/16/1984 | US4477195 Arrangement of analog-type electronic wristwatch |
| 10/16/1984 | US4477194 Device for controlling the functions of an electronic watch |
| 10/09/1984 | US4475822 Electronic watch with conductor tracks formed on the watch glass |
| 10/02/1984 | US4474480 Hand type musical timepiece |
| 09/19/1984 | EP0118688A1 Electro-mechanical clock |
| 09/18/1984 | US4472068 Watch movement with a rotating minute disc |
| 09/11/1984 | US4471284 Reversible stepping motor |
| 09/11/1984 | US4470707 Electronic setting for analog timepiece |
| 09/11/1984 | US4470706 Analog type of electronic timepiece |
| 09/11/1984 | CA1174060A1 Method for slaving a stepping motor and arrangement for practising the method |
| 09/04/1984 | CA1173894A1 Method for detecting position of a stepping motor |
| 08/28/1984 | US4468602 Method for reducing the consumption of a stepping motor and device for performing the method |
| 08/28/1984 | US4468134 In a timepiece |
| 08/28/1984 | US4468132 Whole body swingable clock |
| 08/28/1984 | CA1173256A1 Electromechanical clock |
| 08/21/1984 | US4467256 Method and device for controlling a stepping motor of a timepiece |
| 08/21/1984 | US4467255 Position detector for a stepping motor |
| 08/21/1984 | US4466743 Electronic audio-visual timepiece |
| 08/14/1984 | US4465378 Clock movement |
| 07/31/1984 | CA1171668A1 Thin stepping motor watch |
| 07/24/1984 | US4461583 Alarm electronic timepiece having a stepping motor |
| 07/17/1984 | US4460282 Timepiece stepping motor drive circuit with stepping failure compensation |
| 07/17/1984 | US4460281 Mounting arrangement for printed circuits in electronic watches |
| 07/10/1984 | US4459039 Pressure compensated watch enclosure |
| 07/10/1984 | US4459031 Electronic timepiece |
| 06/26/1984 | US4456866 Method for slaving a stepping motor and arrangement for practising the method |
| 06/26/1984 | US4456387 Electronic alarm wrist watch |
| 06/26/1984 | US4456383 Drag race reaction timer |
| 06/26/1984 | CA1169665A1 Time metering devices |
| 06/12/1984 | US4453833 Movement structure for hand display type electronic watch |
| 06/12/1984 | CA1168877A1 Twenty four hour watch |
| 06/07/1984 | WO1984002203A1 Quartz watch with monobloc case, without press-button or crown on the outside |
| 05/29/1984 | US4451719 Pushbutton switch for a timepiece |
| 05/29/1984 | US4451161 Movement for an electronic watch with analogue display |
| 05/29/1984 | US4451160 Watch with a push button |
| 05/29/1984 | US4451159 Electronic watch |
| 05/22/1984 | US4449832 Program input and/or time setting device |
| 05/22/1984 | US4449831 Pendulum arrangement for clock movement |
| 05/16/1984 | EP0108711A1 Method and device for controlling a step motor |
| 05/15/1984 | US4449086 Method and apparatus for controlling and regulating a motor with a permanent magnetic rotor |
| 05/15/1984 | CA1167262A1 Case for electronic watch module |
| 05/10/1984 | WO1984001838A1 Watch-case with press-buttons |
| 05/01/1984 | US4446413 Method for reducing the consumption of a stepping motor and device for carrying out the method |
| 05/01/1984 | US4445784 Electronic timepiece |
| 05/01/1984 | CA1166683A1 Movement detector for a stepping motor |
| 04/24/1984 | US4444513 Dual display watch |
| 04/24/1984 | US4444511 Mode switching device in an electronic timepiece |
| 04/18/1984 | EP0105841A1 Strip used for manufacturing supports of components for watches |
| 04/17/1984 | US4443112 Planetary gear for date mechanism in a wristwatch |
| 04/10/1984 | US4441825 Low-power integrated circuit for an electronic timepiece |
| 04/03/1984 | US4440502 Electronic timepiece |
| 03/27/1984 | US4439717 Control device for a stepping motor |
| 03/27/1984 | CA1164523A1 Movement detector for a stepping motor |
| 03/21/1984 | EP0103542A1 Stepping motor assembly |
| 03/20/1984 | US4437769 Electronic timepiece |
| 03/20/1984 | US4437768 Movement structure for an electronic timepiece |
| 03/06/1984 | US4435796 Electrical connection construction for electronic timepiece |
| 03/06/1984 | US4435087 Motor-driven movement for timepiece |
| 02/28/1984 | US4433918 Analog display electronic timepiece with multi-mode display capability |
| 02/22/1984 | EP0101410A2 Electro-mechanical clock equipped with a magnetic shield |
| 02/21/1984 | US4433401 Electronic timepiece having a stepping motor and driving circuit compensated for power source variations |
| 02/21/1984 | CA1162577A1 Rocker switch for an electronic watch |
| 02/15/1984 | EP0100576A1 Method of analysing the voltage induced in an exciter coil of a stepping motor |
| 02/07/1984 | US4430008 Quartz oscillation-type electronic timepiece |
| 02/07/1984 | US4430007 Method of reducing the power consumption of the stepping motor of an electronic timepiece and an electronic timepiece employing the method |
| 01/31/1984 | US4428683 Electrical connection construction for electronic timepiece |
| 01/25/1984 | EP0099308A1 Quartz clock |
| 01/24/1984 | CA1161167A1 Setting circuit |
| 01/17/1984 | US4426159 Electronic time keeping device |
| 01/17/1984 | US4426158 Analog-display electronic watch with stator mounted rotor, hand spindles and gear train |
| 01/10/1984 | US4425538 Timepiece with a device for the control of a stepping motor |
| 01/04/1984 | EP0097350A1 Method of feeding a single phase stepping motor of a time piece |
| 01/04/1984 | EP0097168A1 Clock and watch module comprising an electronic circuit and a calender device. |
| 01/03/1984 | US4423966 Alarm control system for alarm clock |
| 01/03/1984 | US4423964 Timepiece with alarm and time setting device |
| 12/27/1983 | US4422776 Device for correction of time date displayed by an electronic watch |
| 12/20/1983 | US4421420 Electronic timepiece with animation |
| 12/13/1983 | US4420263 Electronic watch with means for detecting the movement of a hand through a reference position |
| 12/06/1983 | US4419019 Analog display type electronic timepiece |
| 11/29/1983 | US4417820 Time-keeping device, especially a quartz-controlled clock |
| 11/23/1983 | EP0094696A1 Method and arrangement for the control and regulation of, especially, a clock motor with a permanent magnet rotor |
| 11/22/1983 | US4417113 Structure of push-button device |
| 11/22/1983 | US4416550 Drive assembly for a timepiece |
| 11/15/1983 | US4415845 Electric motor control device |
| 11/15/1983 | US4415276 Electronic timepiece |
| 11/15/1983 | US4415274 Step motor |
| 11/08/1983 | US4413915 Watch having an analog display and a digital display |
| 11/01/1983 | US4412751 Jointed electronic watch |
| 10/26/1983 | EP0092522A1 Reversible step motor and method of controlling the same |
| 10/26/1983 | EP0092521A1 Motor and method of controlling it |
| 10/11/1983 | US4408901 Miniature pushbutton |
| 10/11/1983 | US4408898 Positioning mechanism for a center wheel |
| 10/11/1983 | US4408896 Correcting mechanism for hybrid display timepiece |
| 10/04/1983 | US4407590 Battery unit for an electric timepiece |