G04R 40 - Correcting the clock frequency

Patents for G04R 40 - Correcting the clock frequency (288)
04/2008
04/30/2008	CN100385353C Multifunctional electric wave clock and its display and voice reporting method
01/2008
01/23/2008	CN101111813A Time-stamp device, time emendation method and time emendation program
09/2007
09/19/2007	CN100338537C Transmission-reception system for electronic clocks
08/2007
08/01/2007	CN101008833A Rapid zero calibration method of automatic time calibrating timer capable of receiving radio signals
08/01/2007	CN101008831A Power saving method of simulated electronic wave clock at night and device thereof
08/01/2007	CN101008830A Step failing out detecting method of electronic wave clock and device therefor
07/2007
07/25/2007	CN2927133Y Standard mother clock
06/2007
06/27/2007	CN1987687A Radio-controlled timepiece and method of adjusting the time kept by a radio-controlled timepiece
05/2007
05/09/2007	CN2898885Y Permanent storage intelligent timing device of wireless correcting
04/2007
04/18/2007	CN2891020Y Time synchronization positioning device of pointer type electric wave clock
04/18/2007	CN1949103A Electricity saving method of indicator type electric wave clock positioning and auto-correcting time
04/18/2007	CN1949102A Automatically correcting time clock of radio wave
11/2006
11/29/2006	CN2842500Y Automatic time cabibrating clock by radiowave
09/2006
09/06/2006	CN1828456A Radio controlled timepiece
07/2006
07/27/2006	DE102004050242B4 Time control for electronic clock e.g. wrist clock, has additional time measuring system which determines time deviations, where data for error correction is derived from deviation, and error correction is executed automatically
06/2006
06/08/2006	DE102004019983B4 Real-time clock signal checking device for a mobile phone has a receiver for receiving a reference signal from a base station which is then used to check and adjust the phone's internal time signal
05/2006
05/24/2006	CN1776547A Multifunctional electric wave clock and its display and voice reporting method
04/2006
04/27/2006	DE102004050242A1 Time control for electronic clock e.g. wrist clock, has additional time measuring system which determines time deviations, where data for error correction is derived from deviation, and error correction is executed automatically
04/18/2006	US7031696 Timekeeper with automatic time setting and time setting method for same
02/2006
02/08/2006	CN2757188Y Time correction wrist watch without press key and handle
01/2006
01/25/2006	CN2754128Y Automatic precise correcting universal time and count down clock
12/2005
12/21/2005	CN1710498A Electric-wave clock dynamic timing method
12/21/2005	CN1710497A Electric-wave clock dynamic timing method
11/2005
11/17/2005	DE102004019983A1 Real-time clock signal checking device for a mobile phone has a receiver for receiving a reference signal from a base station which is then used to check and adjust the phone's internal time signal
11/09/2005	CN1226672C Low-power consumption precise timer and its precision correcting equipment, system and method
09/2005
09/07/2005	CN1664722A Movement of chronograph for automatic correction daylight saving time and method thereof
08/2005
08/24/2005	CN2720489Y Electric wave clock movement control system
08/03/2005	CN2715201Y Clock with satellite timing and auto-control pointer positioning
04/2005
04/27/2005	CN1609628A 'Beidou No.1' satellite navigation system and GPS mutually preparing time service method and apparatus
03/2005
03/30/2005	CN1601406A Analog electric wave clock and time adjusting method
03/30/2005	CN1601405A Auto calibrating timer utilizing radio station timing signal
03/16/2005	CN2685938Y Digital time signal clock
03/09/2005	CN1591245A Automatic correcting watch
08/2004
08/04/2004	CN1517819A Correction module of system time and its correction method
07/2004
07/01/2004	US20040127234 Timekeeper with automatic time setting and time setting method for same
02/2004
02/18/2004	CN2603955Y Apparatus of correcting or detecting rotation angle position
02/18/2004	CN1475880A Quartz clock using calling transmission set to proceed correction
09/2003
09/03/2003	CN2570831Y Time-aligning device for pointer type electric wave bell
08/2003
08/13/2003	CN1118210C Mobile terminal with accuracy real time generator for radio telecommunication system
06/2003
06/04/2003	CN1421751A Low-power consumption precise timer and its precision correcting equipment, system and method
04/2003
04/29/2003	US6556512 Mobile terminal for a wireless telecommunication system with accurate real time generation
04/09/2003	CN2544317Y Pointer type electronic wave clock synchronous mechanism
04/01/2003	US6542438 Electronic watch transmitting/receiving system
03/2003
03/12/2003	CN1103068C Real time clock for consumer device and method for implementing such clock
11/2002
11/07/2002	WO2002088849A1 Timekeeper with automatic time setting and time setting method for same
10/2002
10/30/2002	EP1253488A1 Time keeping device with automatic time correction and method for correcting such a time keeper
10/23/2002	CN2518131Y Timing mechanism using radio for time setting
10/02/2002	CN2514379Y Automatic realtime correcting digital clock
09/2002
09/18/2002	EP1241814A1 RDS-TMC Broadcast Receiver and Method for Calibrating an Internal Clock of a Broadcast Receiver
06/2002
06/26/2002	CN2497348Y Time-calibrating control device
06/12/2002	CN1353347A Time calibration method and controller
05/2002
05/21/2002	US6392961 Real-time clock for consumer devices and method for implementing such a clock
03/2002
03/06/2002	EP1184752A1 Telephone communication method between a dedicated sever and a portable object having a clock function and a telephone, and portable object for its realisation
11/2001
11/22/2001	US20010043511 Electronic watch transmitting/receiving system.
09/2001
09/06/2001	US20010020279 Clock
08/2001
08/08/2001	EP1122622A1 Electronic device and method for adjusting an internal clock
07/2001
07/11/2001	EP1115045A2 A clock
06/2001
06/27/2001	CN1300967A Radio time-setting clock
05/2001
05/09/2001	CN1294471A Mobile terminal with accuracy real time generator for radio telecommunicating system
04/2001
04/25/2001	EP1094374A1 Mobile terminal for a wireless telecommunication system with accurate real time generation
03/2001
03/07/2001	EP1081564A2 Method for pruducing a time signal
03/01/2001	DE19931685A1 Verfahren zur Herstellung eines Zeitsignals A process for producing a timing signal
12/2000
12/13/2000	CN2410662Y Wireless time-setting clock by using photoelectric element location
10/2000
10/18/2000	CN2401918Y Computer type alarm clock
06/2000
06/14/2000	EP0891577B1 Real-time clock for consumer devices and method for implementing such a clock
05/2000
05/31/2000	EP1005212A1 Local telephone network with handsets controlled by a base station and intergrated time pieces
04/2000
04/27/2000	WO2000023854A1 Clock comprising a microprocessor
04/20/2000	DE19847753A1 Timepiece with clock signal generator detects time adjustments and alters relationship between number of clock signals and displayed time units accordingly
10/1999
10/13/1999	EP0949548A1 Transmission-reception system for electronic clocks
10/06/1999	CN1231036A Transmission-reception system for electronic clocks
04/1999
04/28/1999	CN1043175C Extracting circuit of time reporting signal in radio broadcasting
04/21/1999	CN1214777A Real-time clock for consumer device and method for implementing such clock
01/1999
01/20/1999	EP0891577A1 Real-time clock for consumer devices and method for implementing such a clock
12/1998
12/10/1998	WO1998055902A1 Transmission-reception system for electronic clocks
10/1997
10/09/1997	WO1997037287A1 Real-time clock for consumer devices and method for implementing such a clock
03/1996
03/20/1996	CN2222936Y Automatic setting device for quartz clock
01/1996
01/10/1996	EP0691598A2 Method and means to drive a software clock in an electronic entertainment apparatus
12/1995
12/27/1995	CN1114090A Extracting circuit of time giving signal in radio broadcasting
11/1995
11/02/1995	DE4414581A1 Radio time code clock synchronisation circuit for two periodic signals
10/1995
10/26/1995	DE4412892A1 Autonomous radio watch or clock with radio receiver and aerial
10/19/1995	DE4423366C1 Software clock operating method for electronic entertainment appts. e.g with TV receiver or video recorder
09/1995
09/20/1995	CN1108771A Automatic-calibration timer
08/1995
08/03/1995	DE4403124A1 Radio clock with receiver unit
10/1993
10/13/1993	CN2143791Y Automatic correcting time digit electronic clock
05/1991
05/15/1991	EP0427515A2 Automatically corrected electronic timepiece
01/1990
01/04/1990	DE3822412A1 Method for automatically setting autonomous radio clocks
08/1988
08/30/1988	US4768178 High precision radio signal controlled continuously updated digital clock
12/1981
12/02/1981	EP0040655A1 Method and means for automatically setting timepieces in a time zone

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