Patents
Patents for G04G 19 - Electric power supply circuits specially adapted for use in electronic time-pieces (1,255)
07/2001
07/04/2001CN1301998A Time keeping device and method for control said device
06/2001
06/28/2001US20010005895 Time keeping apparatus and method for controlling the same
06/21/2001US20010004419 Data-imprinting apparatus for a lens-equipped film unit
06/21/2001US20010004337 Means for recharging a watch accumulator
06/20/2001CN1299975A Voltage detection apparatus, cell residual voltage detection apparatus, voltage detection method and cell residual voltage detection method
06/06/2001CN1298224A AC voltage detecting circuit and method, charging circuit and method, chopper circuit and chopper method and chopper charging circuit and method
05/2001
05/30/2001CN1297598A Electronic equipment and method of controlling electronic equipment
05/30/2001CN1297543A Electronic timepiece and method for transmitting data for electronic timepiece
05/30/2001CA2327129A1 Transformerless led digital alarm clock
05/15/2001US6233203 Electronic timepiece
05/15/2001US6232543 Thermoelectric system
05/09/2001EP1098235A2 Charging device for electronic timepiece, electronic timepiece, and method for controlling charging device
05/09/2001EP1098234A1 Electronic equipment and method of controlling electronic equipment
05/08/2001US6229766 Dial formed of a solar cell in particular for a timepiece
05/02/2001EP1096651A2 Chopper circuit and chopper circuit control method
05/02/2001EP1096640A2 AC voltage detection circuit and method, charging circuit and method, chopper circuit and chopping method, chopper charging circuit and method, electronic apparatus, and timepiece
05/02/2001CN1293481A Clipper circuit and control method, charging circuit, electron equipment and timing counter
04/2001
04/24/2001US6222114 Portable wrist device
04/19/2001WO2001027700A1 Electronic timepiece and method of driving electronic timepieces
04/18/2001EP1093212A1 Chopper circuit, chopper circuit control method, chopper-type charging circuit, electronic device, and timekeeping apparatus
04/18/2001EP1093203A1 Electronic equipment and method of controlling electronic equipment
04/12/2001DE19926819C1 Mobile radio device with stop-watch function has control signal for stop-watch obtained from information signal transmitted between 2 mobile radio devices
04/04/2001CN1290359A Electronic device, and method for controlling the electronic device
04/03/2001US6212133 Low power GPS receiver system and method of using same
03/2001
03/28/2001EP1087269A1 Electronic timepiece and method for transmitting data for electronic timepiece
03/28/2001CN1289476A Power supply device, power supply method, portable electronic apparatus, and electronic timepiece
03/27/2001US6208119 Electronic speed-control circuit
03/27/2001US6208055 Electromagnetic transducer and electronic device including the transducer
03/21/2001CN1288535A Electronically controlled mechanical watch and method of preventing overcharge
03/20/2001US6205091 Method and apparatus for controlling a solar-powered radio-controlled timepiece when a storage element is inadequately charged
03/07/2001CN1286765A Electronic timepiece, and method of power supply and time adjustment thereof
02/2001
02/27/2001US6194878 Electronic speed control circuit
02/07/2001CN2418501Y Improved world clock
01/2001
01/30/2001US6181648 Electronic watch equipped with solar cell
01/25/2001DE19931796A1 Electrical device has electrical loads, control unit, mains stage and clock unit supplied by solar cell unit and/or accumulator when mains stage is switched off by control unit
01/23/2001US6176611 System and method for reducing power consumption in waiting mode
01/10/2001EP1067667A1 Power supply device, power supply method, portable electronic apparatus, and electronic timepiece
01/09/2001US6172943 Electronic clock having an electric power generating element
12/2000
12/27/2000EP1063574A1 Watch with an additional electrical apparatus
12/21/2000WO2000077581A1 Electronic timepiece
11/2000
11/29/2000EP1055981A1 Electronically controlled mechanical watch and method of preventing overcharge
11/29/2000EP1055980A1 Electronic device, and method for controlling the electronic device
11/28/2000US6154422 Power-generating device, charging method and clocking device
11/23/2000WO2000070411A1 Electronic equipment and method of controlling electronic equipment
11/14/2000US6147935 Transformerless LED digital alarm clock
11/14/2000US6147564 Oscillation circuit having electrostatic protective circuit
11/09/2000WO2000067079A1 Electronic clock and method of controlling the clock
11/07/2000US6144621 Charging type electronic timepiece
10/2000
10/31/2000US6140863 Power-generation detection circuit for use in an electronic device and power-generation detection method and power consumption control method for use in connection therewith
10/12/2000WO2000060419A1 Electronic apparatus and method for controlling electronic apparatus
10/11/2000EP1043781A1 Thermoelectric generation unit and portable electronic device using the unit
10/10/2000US6130773 Nonemissive displays and piezoelectric power supplies therefor
10/05/2000WO2000059091A1 Electronic equipment and method of controlling electronic equipment
10/05/2000WO2000058792A1 Electronic timepiece and method for transmitting data for electronic timepiece
10/04/2000EP1041468A1 Means and method to store the time in a mobile telephone
10/04/2000EP1041467A1 Means and method to store the time in a mobile telephone
10/04/2000EP1041462A1 Power-saving electronic watch and method for operating electronic watch
09/2000
09/26/2000US6124649 Micro-generator module and clockwork movement containing such a micro-generator
09/19/2000US6122185 Electronic apparatus
09/13/2000CN1266508A Power generation device and electronic timepiece using the device
09/12/2000US6118258 Electrical apparatus supplied by a photo-voltaic power source
09/12/2000US6118219 AC driver having three power supply voltages including an internally generated voltage
09/06/2000EP1033634A1 Electronic timepiece, and method of power supply and time adjustment thereof
08/2000
08/16/2000EP1028381A2 Portable messaging and scheduling device with homebase station
08/16/2000CN1263613A Portable wrist device
08/09/2000EP1026559A1 Electronic watch with generating function
08/01/2000US6097257 Crystal oscillator circuit having transistor with back gate voltage control
07/2000
07/12/2000EP1018675A2 Power supply device, control method for the power supply device, portable electronic device, timepiece, and control method for the timepiece
07/12/2000CN1259691A Time piece and method for controlling same
07/08/2000CA2292680A1 Time switch
06/2000
06/28/2000EP1014235A2 Time display device
06/28/2000EP1014230A1 Timepiece having an electrical energy generator
06/28/2000EP1014229A2 Electronic apparatus and control method for electronic apparatus
06/28/2000EP1014228A2 Portable electronic device and control method for the same
06/28/2000EP1014227A2 Time-measurement device and method of controlling the same
06/22/2000WO2000036474A1 Electronic device, and method for controlling the electronic device
06/21/2000CN1257232A Portable electronic equipment and control method thereof
06/21/2000CN1257231A Electronic device and control method thereof
06/14/2000CN2383093Y Inverse timer for test
06/14/2000CN1256442A Portable electronic equipment and control method of the same
06/14/2000CN1256441A Power supply device, portable electronic device, timing device and their control method thereof
06/13/2000US6075757 Thermoelectrically operated timepiece
06/08/2000WO2000033454A1 Power supply device, power supply method, portable electronic apparatus, and electronic timepiece
06/07/2000EP1006640A2 Portable electronic device and control method for controlling the protable electronic device
06/06/2000US6072401 Portable messaging and scheduling device with homebase station
05/2000
05/30/2000US6069850 Method and apparatus for driving a battery-backed up clock while a system is powered-down
05/30/2000US6069846 Electronic clock
05/25/2000WO2000029913A1 Electronically controlled mechanical watch and method of preventing overcharge
05/24/2000CN1254112A Light wrist device
05/24/2000CN1254111A Electronic device capable of producing thermoelectricity
05/23/2000US6067277 Dial formed of a solar cell in particular for a timepiece
05/17/2000EP1001471A1 Thermoelectric generating electronic timepiece
05/17/2000EP1001470A1 Thermoelectronic generating electronic device
05/17/2000EP1001318A1 Portable wrist device
05/09/2000US6061304 Electronic watch
05/09/2000US6060862 Rechargeable electronic apparatus
04/2000
04/27/2000WO2000023853A1 Electronic timepiece
04/27/2000WO2000023852A1 Power-saving electronic watch and method for operating electronic watch
04/26/2000EP0843576B1 Movement powered medical pulse generator having a full-wave rectifier with dynamic bias
04/19/2000CN1251180A Electronic device and method for controlling electronic device
1 2 3 4 5 6 7 8 9 10 11 12 13